634c0bf6e653e9bd5e349fedd6690e07fc7e934e

received Thu, 31. Oct 2024, 17:14:28 (by user sx)
Thu, 31 Oct 2024 16:14:28 +0000 (17:14 +0100)

author Manfred Steiner <sx@htl-kaindorf.at>
Thu, 31 Oct 2024 16:14:07 +0000 (17:14 +0100)

committer Manfred Steiner <sx@htl-kaindorf.at>
Thu, 31 Oct 2024 16:14:07 +0000 (17:14 +0100)
received Thu, 31. Oct 2024, 17:14:28 (by user sx)
Thu, 31 Oct 2024 16:14:28 +0000 (17:14 +0100)
author Manfred Steiner <sx@htl-kaindorf.at>
Thu, 31 Oct 2024 16:14:07 +0000 (17:14 +0100)
committer Manfred Steiner <sx@htl-kaindorf.at>
Thu, 31 Oct 2024 16:14:07 +0000 (17:14 +0100)
diff --git a/.gitignore b/.gitignore

new file mode 100644 (file)

index 0000000..9559861
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+**/.depend
+**/build
+**/dist
+**/sim
diff --git a/.vscode/c_cpp_properties.json b/.vscode/c_cpp_properties.json

new file mode 100644 (file)

index 0000000..7e283a7
--- /dev/null
+++ b/.vscode/c_cpp_properties.json
@@ -0,0 +1,26 @@
+{
+    "configurations": [
+        {
+            "name": "Linux AVR",
+            "includePath": [
+                "/usr/lib/avr/include/**",
+                "/usr/lib/gcc/avr/**"
+            ],
+            "defines": [],
+            "compilerPath": "/usr/bin/avr-gcc",
+            "compilerArgs": [
+                "-mmcu=atmega16",
+                "-Os",
+                "-DF_CPU=12000000",
+                "-DBAUD_RATE=115200",
+                "-DDOUBLE_SPEED",
+                "-DNUM_LED_FLASHES=4",
+                "-DMAX_TIME_COUNT=F_CPU>>4"
+            ],
+            "cStandard": "gnu11",
+            "cppStandard": "gnu++11",
+            "intelliSenseMode": "linux-gcc-x64"
+        }
+    ],
+    "version": 4
+}
diff --git a/.vscode/launch.json b/.vscode/launch.json

new file mode 100644 (file)

index 0000000..f29cf2e
--- /dev/null
+++ b/.vscode/launch.json
@@ -0,0 +1,37 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Build",
+            // "request": "launch",
+            "type": "node-terminal",
+            "preLaunchTask": "build"
+        },{
+            "name": "Flash",
+            // "request": "launch",
+            "type": "node-terminal",
+            "preLaunchTask": "flash"
+        },{
+            "name": "Clean",
+            // "request": "launch",
+            "type": "node-terminal",
+            "preLaunchTask": "clean"
+        },{
+            // es muss mit simuc --board arduino dist/programm.elf der Simulator 
+            // gestartet werden. Dessen gdb-stub öffnet auf localhost:1234 einen Port
+            "name": "Debug (simuc)",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "${workspaceFolder}/sim/atmega328p.elf",
+            "cwd": "${workspaceFolder}",
+            "externalConsole": false,
+            "MIMode": "gdb",
+            "miDebuggerPath": "/usr/bin/avr-gdb",
+            "miDebuggerServerAddress": ":1234",
+            "preLaunchTask": "build"
+        }
+    ]
+}
diff --git a/.vscode/settings.json b/.vscode/settings.json

new file mode 100644 (file)

index 0000000..1d7e197
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,16 @@
+{
+    "[c]": {
+        "editor.insertSpaces": true,
+        "editor.tabSize": 3,
+        "editor.detectIndentation": false
+    },
+    "[h]": {
+        "editor.insertSpaces": true,
+        "editor.tabSize": 3,
+        "editor.detectIndentation": false
+    },
+    "cSpell.words": [],
+    "cSpell.ignorePaths": [
+        "**/*.json", "**/*.c", "**/*.h", "**/Makefile"
+    ]
+}
diff --git a/.vscode/tasks.json b/.vscode/tasks.json

new file mode 100644 (file)

index 0000000..74fb1c7
--- /dev/null
+++ b/.vscode/tasks.json
@@ -0,0 +1,23 @@
+{
+    // See https://go.microsoft.com/fwlink/?LinkId=733558
+    // for the documentation about the tasks.json format
+    "version": "2.0.0",
+    "tasks": [{
+        "label": "build",
+        "type": "shell",
+        "command": "make",
+        "problemMatcher":[
+            "$gcc"
+        ]
+    },{
+        "label": "clean",
+        "type": "shell",
+        "command": "make",
+        "args": [ "clean" ],
+    },{
+        "label": "flash",
+        "type": "shell",
+        "command": "make",
+        "args": [ "flash" ],
+    }]
+}
+\ No newline at end of file
diff --git a/LICENSE b/LICENSE

new file mode 100644 (file)

index 0000000..c9565b9
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 Manfred Steiner (Manfred.Steiner@gmx.at)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/Makefile b/Makefile

new file mode 100644 (file)

index 0000000..54dc740
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,32 @@
+.PHONY: all release clean-all clean
+
+SEP = --------------------------------------------------------
+
+all:
+       @printf "\n\e[1;36m$(SEP)\nSure-Board\n$(SEP)\e[m\n"
+       -@make -C sure-m16
+       @printf "\n\e[1;36m$(SEP)\n Arduino Nano\n$(SEP)\e[m\n"
+       -@make -C nano-328
+       @printf "\n\e[1;36m$(SEP)\nNano-644\n$(SEP)\e[m\n"
+       -@make -C nano-644
+       @printf "\n\e[1;36m$(SEP)\n Nano-1284\n$(SEP)\e[m\n"
+       -@make -C nano-1284
+
+release:
+       -@make -C sure-m16 release
+       -@make -C nano-328 release
+       -@make -C nano-644 release
+       -@make -C nano-1284 release
+
+clean-all: clean
+       test -d sure-m16/release && rm -r sure-m16/release
+       test -d nano-328/release && rm -r nano-328/release
+       test -d nano-644/release && rm -r nano-644/release
+       test -d nano-1284/release && rm -r nano-1284/release
+
+clean:
+       @make -C sure-m16 clean
+       @make -C nano-328 clean
+       @make -C nano-644 clean
+       @make -C nano-1284 clean
+
diff --git a/README.md b/README.md

new file mode 100644 (file)

index 0000000..ba5ae6b
--- /dev/null
+++ b/README.md
@@ -0,0 +1,96 @@
+# Arduino-Bootloader (STK500 Protokoll)
+
+Dieser Bootloader ermöglicht die Programmierung über das "Arduino-System". Als Kommunikationsprotokoll kommt das [STK500 Protokoll]( https://www.microchip.com/content/dam/mchp/documents/OTH/ApplicationNotes/ApplicationNotes/doc2525.pdf) zur Anwendung (Kommunikationsablauf siehe Datei [docs/protocol](docs/protocol)).
+
+Beim Bootloader-Quelltext in [src/main.c](src/main.c) handelt es sich um eine Anpassung von [https://github.com/arduino/ArduinoCore-avr/blob/master/bootloaders/atmega/ATmegaBOOT_168.c](https://github.com/arduino/ArduinoCore-avr/blob/master/bootloaders/atmega/ATmegaBOOT_168.c) an die Hardware der hier unterstützten Boards (Speicherangabe Flash, SRAM, EEPROM in KiB):
+
+ Board            | README.md                                  | µC          | Speicher   | Frequenz | Spannung
+----------------- | ------------------------------------------ | ----------- | ---------- | -------- | --------
+**Nano-1284**     | [nano-1284/README.md](nano-1284/README.md) | ATmega1284P | 128, 16, 4 | 12MHz    | 3.3V
+**Nano-644**      | [nano-644/README.md](nano-644/README.md)   | ATmega644P  | 64, 4, 2   | 12MHz    | 3.3V
+**Arduino Nano**  | [nano-328/README.md](nano-328/README.md)   | ATmega328P  | 32, 2, 1   | 16MHz    | 5V
+**Sure AVR-DEM1** | [sure-m16/README.md](sure-m16/README.md)   | ATmega16    | 16, 1, 0.5 | 12MHz    | 5V 
+
+## Programmdateien
+
+Der Bootloader kann entweder aus der Quelltextdatei selbst erzeugt werden (siehe [Übersetzung](#%C3%BCbersetzung)), oder es wird eine der bereits fertigen Dateien im Ordner [release](release) (im Ordner des Boards) verwendet:
+* **Nano-1284**  
+  [nano-1284/release/v2024-10-31_161248/bootloader-arduino_nano-m1284p_12mhz-115200bps.elf](nano-1284/release/v2024-10-31_161248/bootloader-arduino_nano-m1284p_12mhz-115200bps.elf)
+* **Nano-644**  
+  [nano-644/release/v2024-10-31_161247/bootloader-arduino_nano-m644p_12mhz-115200bps.elf](nano-644/release/v2024-10-31_161247/bootloader-arduino_nano-m644p_12mhz-115200bps.elf)
+* **Ardunino Nano**  
+  [nano-328/release/v2024-10-31_161247/bootloader-arduino_nano-m328p_16mhz-38400bps.elf](nano-328/release/v2024-10-31_161247/bootloader-arduino_nano-m328p_16mhz-38400bps.elf)
+* **Sure AVR-DEM1**  
+  [sure-m16/release/v2024-10-31_161247/bootloader-arduino_nano-m16_12mhz-115200bps.elf](sure-m16/release/v2024-10-31_161247/bootloader-arduino_nano-m16_12mhz-115200bps.elf)
+
+Als Versionskennung dient Datum und Zeit der Übersetzung. Diese Information ist im Flash und somit in der ELF-Datei zu finden. Durch `hexdump -C <datei>.elf` kann die Version überprüft werden. Mit einem ISP-Programmiergerät oder den Bootloader lässt sich auch das Flash aus dem µC auslesen (`make flash-hexdump`) und so die Bootloader-Version kontrollieren.
+
+## Quelltextanpassungen
+
+Die Anpassung der Quelltext-Datei umfasst:
+* Microcontroller
+* Frequenz
+* Serielle Schnittstelle: **115200/8N1** (Nano-1284, Nano-644, Sure AVR-DEM1) oder **38400/8N1** (Arduino Nano)
+* LEDs als Indikator
+* Assembler-Anweisungen durch Macros aus `avr/boot.h` ersetzt
+* Quelltextkorrekturen, damit der Bootloader auch bei einer Page-Size von 256 Byte funktioniert
+
+
+## Übersetzung
+
+Folgende Tools sind erforderlich:
+* avr-gcc
+* avrdude
+
+Auf einem Linux-Debian System müssen daher folgende Pakete installiert sein:
+```sh
+sudo apt update
+sudo apt install gcc-avr avr-libc binutils-avr avrdude
+```
+
+Die Übersetzung erfolgt dann mit dem Kommando `make`.
+
+## Download auf den µC
+
+Zunächst muss mit `cd` in den Unterordner des richtigen Boards gewechselt werden. Danach kann die korrekte µC-Programmierung (Fuses sowie Download des Bootloaders in den Bootloader-Bereich des µC-Flash) mit Hilfe eines [USBasp-Programmiergeräts](https://www.fischl.de/usbasp/) mit folgenden Kommandos erfolgen:
+
+```sh
+cd nano-m16
+make isp-fuse
+make isp-flash
+```
+
+Falls die *release-Version* programmiert werden soll, muss nach dem `make` die elf-Datei zuvor in den Ordner `dist` kopiert werden.
+
+Beispiel für ein Arduino Nano µC-Board:
+```sh
+cd nano-328
+make
+cp release/v2024-10-31_130840/bootloader-arduino_nano-m328p_16mhz-38400bps.elf dist/
+make isp-fuse
+make isp-flash
+```
+
+## Download von Programmen mit Hilfe des Bootloaders
+
+Sobald sich am µC ein Bootloader befindet ist kein Programmiergerät mehr erforderlich. Das Programm wird über die serielle UART-Schnittstelle (via USB-Schnittstelle) in den Flash gespeichert.
+
+UART-Schnittstelle (Option `-P`) und Name der ELF-Programmdatei (nach `flash:w:`) sind anzupassen...
+
+* **Nano-1284**:  
+  `avrdude -c arduino -p m1284p -P /dev/ttyUSB0 -b 115200 -e -U flash:w:programm.elf`
+* **Nano-644**:  
+  `avrdude -c arduino -p m644p -P /dev/ttyUSB0 -b 115200 -e -U flash:w:programm.elf`
+* **Arduino Nano**:  
+  `avrdude -c arduino -p m328p -P /dev/ttyUSB0 -b 38400 -e -U flash:w:programm.elf`
+* **Sure AVR-DEM1**:  
+  `avrdude -c arduino -p m16 -P /dev/ttyUSB0 -b 115200 -e -U flash:w:programm.elf`
+
+## Einbindung in die Arduino IDE
+
+Entsprechende Informationen sind in der *README.md* Datei in den µC-Board Ordnern zu finden:
+
+* **Nano-1284**: [nano-1284/README.md](nano-1284/README.md)
+* **Nano-644**: [nano-644/README.md](nano-644/README.md)
+* **Arduino Nano**: [nano-328/README.md](nano-328/README.md)
+* **Sure AVR-DEM1**: [sure-m16/README.md](sure-m16/README.md)
+\ No newline at end of file
diff --git a/create-release b/create-release

new file mode 100755 (executable)

index 0000000..22ab9fa
--- /dev/null
+++ b/create-release
@@ -0,0 +1,120 @@
+#!/bin/sh
+#set -x
+
+while [ ! -z "$1" ]; do
+   DIR="$1"
+   FILE="$2"
+
+   #echo "  creating release folder for file $FILE in directory $DIR ..."
+
+   if [ ! -d "$DIR" ]; then
+      printf "  [1;31mERROR: missing target directory $DIR\e[m\n"
+      exit 1
+   fi
+   
+   if [ -z "$FILE" ] || [ ! -f "$FILE" ]; then
+      printf "  [1;31mERROR: missing file $FILE\e[m\n"
+      exit 2
+   fi
+
+   shift
+   shift
+
+   DATE_OBJDUMP=$(avr-objdump -tT "$FILE" 2>&1 | grep -e _.*DATE)
+   if [ -z "$DATE_OBJDUMP" ]; then
+      printf "  \e[1;31mERROR ($FILE -> $DIR): symbol DATE not found\e[m\n"
+      exit 3
+   fi
+   
+   TIME_OBJDUMP=$(avr-objdump -tT "$FILE" 2>&1 | grep -e _.*TIME)
+   if [ -z "$DATE_OBJDUMP" ]; then
+      printf "  \e[1;31mERROR ($FILE -> $DIR): symbol TIME not found\e[m\n"
+      exit 4
+   fi
+   
+   TEXT_SECT_READELF=$(readelf --syms ${FILE} | grep " .text")
+   if [ -z "$DATE_OBJDUMP" ]; then
+      printf "  \e[1;31mERROR ($FILE -> $DIR): symbol .text not found\e[m\n"
+      exit 5
+   fi
+
+   avr-objcopy --dump-section .text=/tmp/.dumpsection.bin "$FILE"
+   SECT_TEXT_OFFSET_HEX="0x$(echo "$TEXT_SECT_READELF" | tr '\t' ' ' | tr -s ' ' | cut -d' ' -f 3)"
+   SECT_TEXT_OFFSET=$(( $(printf "%d" $SECT_TEXT_OFFSET_HEX) ))
+
+   DATE_OFFSET_HEX="0x$(echo "$DATE_OBJDUMP" | cut -d " " -f 1)"
+   DATE_LENGTH_HEX="0x$(echo "$DATE_OBJDUMP" | tr '\t' ' ' | tr -s ' ' | cut -d' ' -f 5)"
+   DATE_OFFSET=$(( $(printf "%d" $DATE_OFFSET_HEX) - $SECT_TEXT_OFFSET ))
+   DATE_LENGTH=$(( $(printf "%d" $DATE_LENGTH_HEX) - 1))
+
+   TIME_OFFSET_HEX="0x$(echo "$TIME_OBJDUMP" | cut -d " " -f 1)"
+   TIME_LENGTH_HEX="0x$(echo "$TIME_OBJDUMP" | tr '\t' ' ' | tr -s ' ' | cut -d' ' -f 5)"
+   TIME_OFFSET=$(( $(printf "%d" $TIME_OFFSET_HEX) - $SECT_TEXT_OFFSET ))
+   TIME_LENGTH=$(( $(printf "%d" $TIME_LENGTH_HEX) - 1))
+
+   DATE_STRING=$(hexdump -s ${DATE_OFFSET} -n ${DATE_LENGTH} -e "${DATE_LENGTH} \"%_p\" \"\\n\"" /tmp/.dumpsection.bin)
+   TIME_STRING=$(hexdump -s ${TIME_OFFSET} -n ${TIME_LENGTH} -e "${TIME_LENGTH} \"%_p\" \"\\n\"" /tmp/.dumpsection.bin)
+   
+   DATE_MONTH_STRING=$(echo $DATE_STRING | cut -d' ' -f1)
+   case "$DATE_MONTH_STRING" in
+     Jan) DATE_MONTH="1";;
+     Feb) DATE_MONTH="2";;
+     Mar) DATE_MONTH="3";;
+     Apr) DATE_MONTH="4";;
+     May) DATE_MONTH="5";;
+     Jun) DATE_MONTH="6";;
+     Jul) DATE_MONTH="7";;
+     Aug) DATE_MONTH="8";;
+     Sep) DATE_MONTH="9";;
+     Oct) DATE_MONTH="10";;
+     Nov) DATE_MONTH="11";;
+     Dec) DATE_MONTH="12";;
+     *) printf "  \e[1;31mERROR ($FILE -> $DIR): invalidate date ($DATE_STRINGS) in file $FILE\e[m\n"; exit 6;;
+   esac
+   
+   DATE_DAY=$(echo $DATE_STRING | cut -d' ' -f2 | sed 's/^0*//')
+   DATE_YEAR=$(echo $DATE_STRING | cut -d' ' -f3 | sed 's/^0*//')
+   TIME_VALUE=$(echo $TIME_STRING | cut -d' ' -f2-)
+   TIME_HOUR=$(echo $TIME_STRING | cut -d ':' -f1 | sed 's/^0*//')
+   TIME_MINUTE=$(echo $TIME_STRING | cut -d ':' -f2 | sed 's/^0*//')
+   TIME_SECOND=$(echo $TIME_STRING | cut -d ':' -f3 | sed 's/^0*//')
+   
+   NAME=$(printf "v%4d-%02d-%02d_%02d%02d%02d" $DATE_YEAR $DATE_MONTH $DATE_DAY $TIME_HOUR $TIME_MINUTE $TIME_SECOND | egrep ^v[0-9]{4}-[0-9]{2}-[0-9]{1,2}_[0-9]{2}[0-9]{2}[0-9]{2}$)
+   if [ -z "$NAME" ]; then
+      printf "  \e[1;31mERROR ($FILE -> $DIR): cannot create release name\e[m\n"
+      exit 7
+   fi
+   FILENAME=$(echo "$FILE" | rev | cut -d"/" -f1 | rev)
+   if [ -d "$DIR/$NAME" ] && [ -f "$DIR/$NAME/$FILENAME" ]; then
+      echo "  OK: release elf-file already created ($FILE -> $DIR/$NAME)"
+   else
+      test -d "$DIR/$NAME" || mkdir "$DIR/$NAME"
+      cp -a "$FILE" "$DIR/$NAME/"
+      if [ $? = 0 ]; then
+         echo "  OK ($FILE -> $DIR/$NAME)"
+      else
+         printf "  \e[1;31mERROR ($FILE -> $DIR)\e[m\n"
+         exit 8   
+      fi
+   fi
+   for suffix in "hex" "bin"; do 
+      SUFFIXFILE=$(echo $FILE | sed "s/.elf$/.${suffix}/")
+      SUFFIXFILENAME=$(echo "$SUFFIXFILE" | rev | cut -d"/" -f1 | rev)
+      if [ -f "$SUFFIXFILE" ]; then
+         if [ -d "$DIR/$NAME" ] && [ -f "$DIR/$NAME/$SUFFIXFILENAME" ]; then
+            echo "  OK: release ${suffix}-file already created ($FILE -> $DIR/$NAME)"
+         else
+            test -d "$DIR/$NAME" || mkdir "$DIR/$NAME"
+            cp -a "$SUFFIXFILE" "$DIR/$NAME/"
+            if [ $? = 0 ]; then
+               echo "  OK ($SUFFIXFILE -> $DIR/$NAME)"
+            else
+               printf "  \e[1;31mERROR ($SUFFIXFILE -> $DIR)\e[m\n"
+               exit 8   
+            fi
+         fi
+      fi
+   done
+
+done
+
diff --git a/docs/protocol b/docs/protocol

new file mode 100644 (file)

index 0000000..8c0ea61
--- /dev/null
+++ b/docs/protocol
@@ -0,0 +1,323 @@
+  0.552750 -->   2: 3020
+  0.555474 <--   2: 1410
+  0.803623 -->   2: 3020
+  0.806825 <--   2: 1410
+  1.054395 -->   2: 3020
+  1.057282 <--   2: 1410
+
+  1.057514 -->   3: 4181 20
+  1.060837 <--   3: 1401 10
+  1.061061 -->   3: 4182 20
+  1.063819 <--   3: 1410 10
+  1.064049 -->  22: 4282 0000 0101 0101 03ff ffff ff01 0008  0000 0100 0020
+  1.068274 <--   2: 1410
+  1.068436 -->   7: 4505 08d7 a000 20
+  1.071346 <--   2: 1410
+  1.071432 -->   2: 5020
+  1.074021 <--   2: 1410
+  1.084349 -->   2: 7520
+  1.087176 <--   5: 141e 960a 10
+  1.087341 -->   6: 5650 0000 0020
+  1.090435 <--   3: 1400 10
+  1.090608 -->   6: 5650 0000 0020
+  1.093517 <--   3: 1400 10
+  1.093662 -->   6: 5650 0000 0020
+  1.096678 <--   3: 1400 10
+  1.096838 -->   6: 5658 0800 0020
+  1.099974 <--   3: 1400 10
+  1.100216 -->   6: 5658 0800 0020
+  1.103433 <--   3: 1400 10
+  1.103621 -->   6: 5658 0800 0020
+  1.106596 <--   3: 1400 10
+  1.106798 -->   6: 5650 0800 0020
+  1.109878 <--   3: 1400 10
+  1.110108 -->   6: 5650 0800 0020
+  1.113015 <--   3: 1400 10
+  1.113141 -->   6: 5650 0800 0020
+  1.116120 <--   3: 1400 10
+  1.116256 -->   6: 56ac 8000 0020
+  1.119179 <--   3: 1400 10
+  1.174951 -->   3: 4181 20
+  1.177570 <--   3: 1401 10
+  1.177770 -->   3: 4182 20
+  1.180450 <--   3: 1410 10
+  1.180666 -->  22: 4282 0000 0101 0101 03ff ffff ff01 0008  0000 0100 0020
+  1.184868 <--   2: 1410
+  1.185056 -->   7: 4505 08d7 a000 20
+  1.187956 <--   2: 1410
+  1.188059 -->   2: 5020
+  1.190517 <--   2: 1410
+  
+  1.191326 -->   4: 5500 0020
+  1.193964 <--   2: 1410
+  
+  1.194133 -->  32: 6401 0046 0c94 3e00 0c94 5b00 0c94 5b00  0c94 5b00 0c94 5b00 0c94 5b00 0c94 5b00
+  1.194154 -->  32: 0c94 5b00 0c94 5b00 0c94 5b00 0c94 5b00  0c94 5b00 0c94 5b00 0c94 ad00 0c94 5b00
+  1.194285 -->  32: 0c94 5b00 0c94 5b00 0c94 5b00 0c94 5b00  0c94 5b00 0c94 7d00 0c94 5b00 0c94 5b00
+  1.194310 -->  32: 0c94 5b00 0c94 5b00 0c94 5b00 0c94 5b00  0c94 5b00 0c94 9c00 0c94 5b00 0c94 5b00
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+  1.199991 -->  32: d9f7 21e0 aae4 b1e0 01c0 1d92 a235 b207  e1f7 0e94 d100 0c94 1204 0c94 0000 0f93
+  1.202760 -->  32: 1f93 cf93 c82f 8b01 8a30 19f4 8de0 0e94  5d00 8091 c000 85ff fccf 8091 4e01 9091
+  1.205599 -->  32: 4f01 0817 1907 19f4 c093 c600 02c0 c093  ce00 80e0 90e0 cf91 1f91 0f91 0895 1f92
+  1.208326 -->   5: 0f92 0fb6 20
+  1.255493 <--   2: 1410
+  
+  1.255743 -->   4: 5580 0020
+  1.258608 <--   2: 1410
+  
+  1.258821 -->  32: 6401 0046 0f92 1124 8f93 9f93 ef93 ff93  98b1 88e0 8927 88b9 8091 c600 8093 ce00
+  1.258842 -->  32: e0e0 f1e0 90e2 9083 8483 ff91 ef91 9f91  8f91 0f90 0fbe 0f90 1f90 1895 1f92 0f92
+  1.258964 -->  32: 0fb6 0f92 1124 8f93 8091 ce00 8032 09f4  429a 8f91 0f90 0fbe 0f90 1f90 1895 1f92
+  1.258995 -->  32: 0f92 0fb6 0f92 1124 2f93 8f93 9f93 8091  4a01 9091 4b01 0196 9093 4b01 8093 4a01
+  1.262021 -->  32: 883e 9340 40f0 98b1 80e1 8927 88b9 1092  4b01 1092 4a01 9f91 8f91 2f91 0f90 0fbe
+  1.264633 -->  32: 0f90 1f90 1895 8ce1 87b9 8ce3 88b9 8ae0  8093 8100 8ced 95e0 9093 8900 8093 8800
+  1.267379 -->  32: 82e0 8093 6f00 8093 c000 38e9 3093 c100  26e0 2093 c200 1092 c500 9ce0 9093 c400
+  1.270166 -->  32: 8093 c800 3093 c900 2093 ca00 1092 cd00  9093 cc00 84e1 91e0 9093 4f01 8093 4e01
+  1.272904 -->   5: 86e0 91e0 20
+  1.320139 <--   2: 1410
+  
+  1.320378 -->   4: 5500 0120
+  1.323002 <--   2: 1410
+  
+  1.323205 -->  32: 6401 0046 9093 5101 8093 5001 1092 0001  7894 80e0 90e0 c0e0 d1e0 0ee2 11e0 359b
+  1.323226 -->  32: 03c0 28e4 31e0 02c0 22e2 31e0 7c01 4fef  e41a f40a 3f93 2f93 df93 cf93 9f93 8f93
+  1.323364 -->  32: 1f93 0f93 0e94 3401 8db7 9eb7 0896 0fb6  f894 9ebf 0fbe 8dbf 359b 4298 8fe2 95e7
+  1.323390 -->  32: 0197 f1f7 00c0 0000 c701 d9cf a0e0 b0e0  eae3 f1e0 0c94 eb03 ae01 4b5f 5f4f fa01
+  1.326221 -->  32: 6191 7191 af01 8091 4e01 9091 4f01 0e94  4a01 e2e0 0c94 0704 abe0 b0e0 e0e5 f1e0
+  1.329091 -->  32: 0c94 db03 6c01 7b01 8a01 fc01 1782 1682  8381 81ff ccc1 ce01 0196 3c01 f601 9381
+  1.331759 -->  32: f701 93fd 8591 93ff 8191 7f01 8823 09f4  bac1 8532 39f4 93fd 8591 93ff 8191 7f01
+  1.334544 -->  32: 8532 29f4 b601 90e0 0e94 4103 e7cf 912c  212c 312c ffe1 f315 d8f0 8b32 79f0 38f4
+  1.337305 -->   5: 8032 79f0 20
+  1.384623 <--   2: 1410
+  
+  1.384878 -->   4: 5580 0120
+  1.387608 <--   2: 1410
+  
+  1.387773 -->  32: 6401 0046 8332 a1f4 232d 2061 1dc0 8d32  61f0 8033 69f4 232d 2160 16c0 832d 8260
+  1.387789 -->  32: 382e e32d e460 3e2e 2ac0 f32d f860 1dc0  37fc 2dc0 20ed 280f 2a30 40f0 8e32 b9f4
+  1.387862 -->  32: 36fc 81c1 232d 2064 322e 19c0 36fe 06c0  8ae0 989e 200d 1124 922e 11c0 eae0 2e9e
+  1.387921 -->  32: 200d 1124 222e f32d f062 3f2e 08c0 8c36  21f4 832d 8068 382e 02c0 8836 41f4 f701
+  1.390834 -->  32: 93fd 8591 93ff 8191 7f01 8111 b3cf 982f  9f7d 9554 9330 28f4 0c5f 1f4f 9fe3 9983
+  1.393604 -->  32: 0dc0 8336 31f0 8337 71f0 8335 09f0 59c0  21c0 f801 8081 8983 0e5f 1f4f 8824 8394
+  1.396338 -->  32: 912c 5301 13c0 2801 f2e0 4f0e 511c f801  a080 b180 36fe 03c0 692d 70e0 02c0 6fef
+  1.399072 -->  32: 7fef c501 0e94 3603 4c01 8201 f32d ff77  3f2e 16c0 2801 22e0 420e 511c f801 a080
+  1.401922 -->   5: b180 36fe 20
+  1.448945 <--   2: 1410
+  
+  1.449212 -->   4: 5500 0220
+  1.451904 <--   2: 1410
+  
+  1.452121 -->  32: 6401 0046 03c0 692d 70e0 02c0 6fef 7fef  c501 0e94 2b03 4c01 f32d f068 3f2e 8201
+  1.452143 -->  32: 33fc 1bc0 822d 90e0 8816 9906 b0f4 b601  80e2 90e0 0e94 4103 2a94 f4cf f501 37fc
+  1.452282 -->  32: 8591 37fe 8191 5f01 b601 90e0 0e94 4103  2110 2a94 21e0 821a 9108 8114 9104 71f7
+  1.452308 -->  32: e8c0 8436 11f0 8936 41f5 f801 37fe 07c0  6081 7181 8281 9381 0c5f 1f4f 08c0 6081
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+  1.457980 -->  32: 7f4f 8f4f 9f4f f068 3f2e 2ae0 30e0 a301  0e94 7d03 882e 8618 45c0 8537 31f4 232d
+  1.460725 -->  32: 2f7e b22e 2ae0 30e0 25c0 932d 997f b92e  8f36 c1f0 18f4 8835 79f0 b5c0 8037 19f0
+  1.463464 -->  32: 8837 21f0 b0c0 e92f e061 be2e b4fe 0dc0  fb2d f460 bf2e 09c0 34fe 0ac0 292f 2660
+  1.466235 -->   5: b22e 06c0 20
+  1.513447 <--   2: 1410
+  
+  1.513715 -->   4: 5580 0220
+  1.516432 <--   2: 1410
+  
+  1.516636 -->  32: 6401 0046 28e0 30e0 05c0 20e1 30e0 02c0  20e1 32e0 f801 b7fe 07c0 6081 7181 8281
+  1.516663 -->  32: 9381 0c5f 1f4f 06c0 6081 7181 80e0 90e0  0e5f 1f4f a301 0e94 7d03 882e 8618 fb2d
+  1.516831 -->  32: ff77 3f2e 36fe 0dc0 232d 2e7f a22e 8914  58f4 34fe 0bc0 32fc 09c0 832d 8e7e a82e
+  1.516877 -->  32: 05c0 b82c a32c 03c0 b82c 01c0 b92c a4fe  0fc0 fe01 e80d f11d 8081 8033 21f4 9a2d
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+  1.525257 -->  32: 18f4 2b18 02c0 982c 212c a4fe 10c0 b601  80e3 90e0 0e94 4103 a2fe 17c0 a1fc 03c0
+  1.527986 -->  32: 88e7 90e0 02c0 88e5 90e0 b601 0cc0 8a2d  8678 59f0 a1fe 02c0 8be2 01c0 80e2 a7fc
+  1.530784 -->   5: 8de2 b601 20
+  1.577915 <--   2: 1410
+  
+  1.578186 -->   4: 5500 0320
+  1.580952 <--   2: 1410
+  
+  1.581190 -->  32: 6401 0046 90e0 0e94 4103 8914 38f4 b601  80e3 90e0 0e94 4103 9a94 f7cf 8a94 f301
+  1.581212 -->  32: e80d f11d 8081 b601 90e0 0e94 4103 8110  f5cf 2220 09f4 42ce b601 80e2 90e0 0e94
+  1.581358 -->  32: 4103 2a94 f6cf f601 8681 9781 02c0 8fef  9fef 2b96 e2e1 0c94 f703 fc01 0590 6150
+  1.581385 -->  32: 7040 0110 d8f7 8095 9095 8e0f 9f1f 0895  fc01 6150 7040 0190 0110 d8f7 8095 9095
+  1.584265 -->  32: 8e0f 9f1f 0895 0f93 1f93 cf93 df93 fb01  2381 21fd 03c0 8fef 9fef 2cc0 22ff 16c0
+  1.587011 -->  32: 4681 5781 2481 3581 4217 5307 44f4 a081  b181 9d01 2f5f 3f4f 3183 2083 8c93 2681
+  1.589734 -->  32: 3781 2f5f 3f4f 3783 2683 14c0 8b01 ec01  fb01 0084 f185 e02d 0995 892b e1f6 d801
+  1.592493 -->  32: 1696 8d91 9c91 1797 0196 1796 9c93 8e93  1697 ce01 df91 cf91 1f91 0f91 0895 fa01
+  1.595249 -->   5: aa27 2830 20
+  1.642464 <--   2: 1410
+  
+  1.642718 -->   4: 5580 0320
+  1.645473 <--   2: 1410
+  
+  1.645679 -->  32: 6401 0046 51f1 2031 81f1 e894 6f93 6e7f  6e5f 7f4f 8f4f 9f4f af4f b1e0 3ed0 b4e0
+  1.645701 -->  32: 3cd0 670f 781f 891f 9a1f a11d 680f 791f  8a1f 911d a11d 6a0f 711d 811d 911d a11d
+  1.645848 -->  32: 20d0 09f4 6894 3f91 2ae0 269f 1124 3019  305d 3193 def6 cf01 0895 462f 4770 405d
+  1.645887 -->  32: 4193 b3e0 0fd0 c9f7 f6cf 462f 4f70 405d  4a33 18f0 495d 31fd 4052 4193 02d0 a9f7
+  1.648691 -->  32: eacf b4e0 a695 9795 8795 7795 6795 ba95  c9f7 0097 6105 7105 0895 9b01 ac01 0a2e
+  1.651486 -->  32: 0694 5795 4795 3795 2795 ba95 c9f7 620f  731f 841f 951f a01d 0895 2f92 3f92 4f92
+  1.654229 -->  32: 5f92 6f92 7f92 8f92 9f92 af92 bf92 cf92  df92 ef92 ff92 0f93 1f93 cf93 df93 cdb7
+  1.657068 -->  32: deb7 ca1b db0b 0fb6 f894 debf 0fbe cdbf  0994 2a88 3988 4888 5f84 6e84 7d84 8c84
+  1.659779 -->   5: 9b84 aa84 20
+  1.706941 <--   2: 1410
+  
+  1.707172 -->   4: 5500 0420
+  1.709845 <--   2: 1410
+  
+  1.710064 -->  32: 6401 0046 b984 c884 df80 ee80 fd80 0c81  1b81 aa81 b981 ce0f d11d 0fb6 f894 debf
+  1.710085 -->  32: 0fbe cdbf ed01 0895 f894 ffcf 202d 3e20  5800 0000 0002 0000 0000 5d00 0000 0000
+  1.710260 -->  32: 0000 0002 0000 0000 5d00 0000 0000 5357  3220 7072 6573 7365 6400 2530 3478 3a20
+  1.710304 -->  32: 4865 6c6c 6f20 776f 726c 6425 7320 2025  3132 730d 0000 ffff ffff ffff ffff ffff
+  1.713085 -->  32: ffff ffff ffff ffff ffff ffff ffff ffff  ffff ffff ffff ffff ffff ffff ffff ffff
+  1.715997 -->  32: ffff ffff ffff ffff ffff ffff ffff ffff  ffff ffff ffff ffff ffff ffff ffff ffff
+  1.718639 -->  32: ffff ffff ffff ffff ffff ffff ffff ffff  ffff ffff ffff ffff ffff ffff ffff ffff
+  1.721439 -->  32: ffff ffff ffff ffff ffff ffff ffff ffff  ffff ffff ffff ffff ffff ffff ffff ffff
+  1.724135 -->   5: ffff ffff 20
+  1.771467 <--   2: 1410
+  
+  1.772647 -->   4: 5500 0020
+  1.775440 <--   2: 1410
+  
+  1.775659 -->   5: 7401 0046 20
+  1.779386 <--  32: 140c 943e 000c 945b 000c 945b 000c 945b  000c 945b 000c 945b 000c 945b 000c 945b
+  1.781924 <--  32: 000c 945b 000c 945b 000c 945b 000c 945b  000c 945b 000c 94ad 000c 945b 000c 945b
+  1.784614 <--  32: 000c 945b 000c 945b 000c 945b 000c 945b  000c 947d 000c 945b 000c 945b 000c 945b
+  1.787364 <--  32: 000c 945b 000c 945b 000c 945b 000c 945b  000c 949c 000c 945b 000c 945b 0011 241f
+  1.790456 <--  32: becf efd0 e1de bfcd bf11 e0a0 e0b1 e0e8  e2f8 e002 c005 900d 92aa 34b1 07d9 f721
+  1.792965 <--  32: e0aa e4b1 e001 c01d 92a2 35b2 07e1 f70e  94d1 000c 9412 040c 9400 000f 931f 93cf
+  1.795688 <--  32: 93c8 2f8b 018a 3019 f48d e00e 945d 0080  91c0 0085 fffc cf80 914e 0190 914f 0108
+  1.798432 <--  32: 1719 0719 f4c0 93c6 0002 c0c0 93ce 0080  e090 e0cf 911f 910f 9108 951f 920f 920f
+  1.800632 <--   2: b610
+  
+  1.800878 -->   4: 5580 0020
+  1.803619 <--   2: 1410
+  
+  1.803814 -->   5: 7401 0046 20
+  1.807479 <--  32: 140f 9211 248f 939f 93ef 93ff 9398 b188  e089 2788 b980 91c6 0080 93ce 00e0 e0f1
+  1.809984 <--  32: e090 e290 8384 83ff 91ef 919f 918f 910f  900f be0f 901f 9018 951f 920f 920f b60f
+  1.812844 <--  32: 9211 248f 9380 91ce 0080 3209 f442 9a8f  910f 900f be0f 901f 9018 951f 920f 920f
+  1.815639 <--  32: b60f 9211 242f 938f 939f 9380 914a 0190  914b 0101 9690 934b 0180 934a 0188 3e93
+  1.818304 <--  32: 4040 f098 b180 e189 2788 b910 924b 0110  924a 019f 918f 912f 910f 900f be0f 901f
+  1.821082 <--  32: 9018 958c e187 b98c e388 b98a e080 9381  008c ed95 e090 9389 0080 9388 0082 e080
+  1.823911 <--  32: 936f 0080 93c0 0038 e930 93c1 0026 e020  93c2 0010 92c5 009c e090 93c4 0080 93c8
+  1.826612 <--  32: 0030 93c9 0020 93ca 0010 92cd 0090 93cc  0084 e191 e090 934f 0180 934e 0186 e091
+  1.828744 <--   2: e010
+  
+  1.828876 -->   4: 5500 0120
+  1.831444 <--   2: 1410
+  
+  1.831620 -->   5: 7401 0046 20
+  1.835129 <--  32: 1490 9351 0180 9350 0110 9200 0178 9480  e090 e0c0 e0d1 e00e e211 e035 9b03 c028
+  1.837845 <--  32: e431 e002 c022 e231 e07c 014f efe4 1af4  0a3f 932f 93df 93cf 939f 938f 931f 930f
+  1.840579 <--  32: 930e 9434 018d b79e b708 960f b6f8 949e  bf0f be8d bf35 9b42 988f e295 e701 97f1
+  1.843432 <--  32: f700 c000 00c7 01d9 cfa0 e0b0 e0ea e3f1  e00c 94eb 03ae 014b 5f5f 4ffa 0161 9171
+  1.846426 <--  32: 91af 0180 914e 0190 914f 010e 944a 01e2  e00c 9407 04ab e0b0 e0e0 e5f1 e00c 94db
+  1.848837 <--  32: 036c 017b 018a 01fc 0117 8216 8283 8181  ffcc c1ce 0101 963c 01f6 0193 81f7 0193
+  1.851649 <--  32: fd85 9193 ff81 917f 0188 2309 f4ba c185  3239 f493 fd85 9193 ff81 917f 0185 3229
+  1.854442 <--  32: f4b6 0190 e00e 9441 03e7 cf91 2c21 2c31  2cff e1f3 15d8 f08b 3279 f038 f480 3279
+  1.856623 <--   2: f010
+  
+  1.856748 -->   4: 5580 0120
+  1.859363 <--   2: 1410
+  
+  1.859447 -->   5: 7401 0046 20
+  1.862911 <--  32: 1483 32a1 f423 2d20 611d c08d 3261 f080  3369 f423 2d21 6016 c083 2d82 6038 2ee3
+  1.865610 <--  32: 2de4 603e 2e2a c0f3 2df8 601d c037 fc2d  c020 ed28 0f2a 3040 f08e 32b9 f436 fc81
+  1.868409 <--  32: c123 2d20 6432 2e19 c036 fe06 c08a e098  9e20 0d11 2492 2e11 c0ea e02e 9e20 0d11
+  1.871210 <--  32: 2422 2ef3 2df0 623f 2e08 c08c 3621 f483  2d80 6838 2e02 c088 3641 f4f7 0193 fd85
+  1.873963 <--  32: 9193 ff81 917f 0181 11b3 cf98 2f9f 7d95  5493 3028 f40c 5f1f 4f9f e399 830d c083
+  1.876709 <--  32: 3631 f083 3771 f083 3509 f059 c021 c0f8  0180 8189 830e 5f1f 4f88 2483 9491 2c53
+  1.879571 <--  32: 0113 c028 01f2 e04f 0e51 1cf8 01a0 80b1  8036 fe03 c069 2d70 e002 c06f ef7f efc5
+  1.882458 <--  32: 010e 9436 034c 0182 01f3 2dff 773f 2e16  c028 0122 e042 0e51 1cf8 01a0 80b1 8036
+  1.884340 <--   2: fe10
+  
+  1.884567 -->   4: 5500 0220
+  1.887255 <--   2: 1410
+  
+  1.887443 -->   5: 7401 0046 20
+  1.890818 <--  32: 1403 c069 2d70 e002 c06f ef7f efc5 010e  942b 034c 01f3 2df0 683f 2e82 0133 fc1b
+  1.893598 <--  32: c082 2d90 e088 1699 06b0 f4b6 0180 e290  e00e 9441 032a 94f4 cff5 0137 fc85 9137
+  1.896393 <--  32: fe81 915f 01b6 0190 e00e 9441 0321 102a  9421 e082 1a91 0881 1491 0471 f7e8 c084
+  1.899280 <--  32: 3611 f089 3641 f5f8 0137 fe07 c060 8171  8182 8193 810c 5f1f 4f08 c060 8171 8107
+  1.902001 <--  32: 2e00 0c88 0b99 0b0e 5f1f 4ff3 2dff 763f  2e97 ff09 c090 9580 9570 9561 957f 4f8f
+  1.904757 <--  32: 4f9f 4ff0 683f 2e2a e030 e0a3 010e 947d  0388 2e86 1845 c085 3731 f423 2d2f 7eb2
+  1.907577 <--  32: 2e2a e030 e025 c093 2d99 7fb9 2e8f 36c1  f018 f488 3579 f0b5 c080 3719 f088 3721
+  1.910469 <--  32: f0b0 c0e9 2fe0 61be 2eb4 fe0d c0fb 2df4  60bf 2e09 c034 fe0a c029 2f26 60b2 2e06
+  1.912524 <--   2: c010
+  
+  1.912815 -->   4: 5580 0220
+  1.915611 <--   2: 1410
+  
+  1.915811 -->   5: 7401 0046 20
+  1.919244 <--  32: 1428 e030 e005 c020 e130 e002 c020 e132  e0f8 01b7 fe07 c060 8171 8182 8193 810c
+  1.921988 <--  32: 5f1f 4f06 c060 8171 8180 e090 e00e 5f1f  4fa3 010e 947d 0388 2e86 18fb 2dff 773f
+  1.924734 <--  32: 2e36 fe0d c023 2d2e 7fa2 2e89 1458 f434  fe0b c032 fc09 c083 2d8e 7ea8 2e05 c0b8
+  1.927531 <--  32: 2ca3 2c03 c0b8 2c01 c0b9 2ca4 fe0f c0fe  01e8 0df1 1d80 8180 3321 f49a 2d99 7ea9
+  1.930309 <--  32: 2e09 c0a2 fe06 c0b3 94b3 9404 c08a 2d86  7809 f0b3 94a3 fc11 c0a0 fe06 c0b2 1488
+  1.933091 <--  32: f428 0c92 2c9b 180e c0b2 1460 f4b6 0180  e290 e00e 9441 03b3 94f7 cfb2 1418 f42b
+  1.935886 <--  32: 1802 c098 2c21 2ca4 fe10 c0b6 0180 e390  e00e 9441 03a2 fe17 c0a1 fc03 c088 e790
+  1.938647 <--  32: e002 c088 e590 e0b6 010c c08a 2d86 7859  f0a1 fe02 c08b e201 c080 e2a7 fc8d e2b6
+  1.940863 <--   2: 0110
+  
+  1.941071 -->   4: 5500 0320
+  1.943869 <--   2: 1410
+  
+  1.944088 -->   5: 7401 0046 20
+  1.947433 <--  32: 1490 e00e 9441 0389 1438 f4b6 0180 e390  e00e 9441 039a 94f7 cf8a 94f3 01e8 0df1
+  1.950256 <--  32: 1d80 81b6 0190 e00e 9441 0381 10f5 cf22  2009 f442 ceb6 0180 e290 e00e 9441 032a
+  1.953054 <--  32: 94f6 cff6 0186 8197 8102 c08f ef9f ef2b  96e2 e10c 94f7 03fc 0105 9061 5070 4001
+  1.955732 <--  32: 10d8 f780 9590 958e 0f9f 1f08 95fc 0161  5070 4001 9001 10d8 f780 9590 958e 0f9f
+  1.958565 <--  32: 1f08 950f 931f 93cf 93df 93fb 0123 8121  fd03 c08f ef9f ef2c c022 ff16 c046 8157
+  1.961369 <--  32: 8124 8135 8142 1753 0744 f4a0 81b1 819d  012f 5f3f 4f31 8320 838c 9326 8137 812f
+  1.964157 <--  32: 5f3f 4f37 8326 8314 c08b 01ec 01fb 0100  84f1 85e0 2d09 9589 2be1 f6d8 0116 968d
+  1.966902 <--  32: 919c 9117 9701 9617 969c 938e 9316 97ce  01df 91cf 911f 910f 9108 95fa 01aa 2728
+  1.969047 <--   2: 3010
+  
+  1.969248 -->   4: 5580 0320
+  1.972047 <--   2: 1410
+  
+  1.972246 -->   5: 7401 0046 20
+  1.975748 <--  32: 1451 f120 3181 f1e8 946f 936e 7f6e 5f7f  4f8f 4f9f 4faf 4fb1 e03e d0b4 e03c d067
+  1.978498 <--  32: 0f78 1f89 1f9a 1fa1 1d68 0f79 1f8a 1f91  1da1 1d6a 0f71 1d81 1d91 1da1 1d20 d009
+  1.981514 <--  32: f468 943f 912a e026 9f11 2430 1930 5d31  93de f6cf 0108 9546 2f47 7040 5d41 93b3
+  1.983891 <--  32: e00f d0c9 f7f6 cf46 2f4f 7040 5d4a 3318  f049 5d31 fd40 5241 9302 d0a9 f7ea cfb4
+  1.986799 <--  32: e0a6 9597 9587 9577 9567 95ba 95c9 f700  9761 0571 0508 959b 01ac 010a 2e06 9457
+  1.989512 <--  32: 9547 9537 9527 95ba 95c9 f762 0f73 1f84  1f95 1fa0 1d08 952f 923f 924f 925f 926f
+  1.992260 <--  32: 927f 928f 929f 92af 92bf 92cf 92df 92ef  92ff 920f 931f 93cf 93df 93cd b7de b7ca
+  1.995029 <--  32: 1bdb 0b0f b6f8 94de bf0f becd bf09 942a  8839 8848 885f 846e 847d 848c 849b 84aa
+  1.997163 <--   2: 8410
+  
+  1.997338 -->   4: 5500 0420
+  2.000161 <--   2: 1410
+  
+  2.000367 -->   5: 7401 0046 20
+  2.003803 <--  32: 14b9 84c8 84df 80ee 80fd 800c 811b 81aa  81b9 81ce 0fd1 1d0f b6f8 94de bf0f becd
+  2.006477 <--  32: bfed 0108 95f8 94ff cf20 2d3e 2058 0000  0000 0200 0000 005d 0000 0000 0000 0000
+  2.009429 <--  32: 0200 0000 005d 0000 0000 0053 5732 2070  7265 7373 6564 0025 3034 783a 2048 656c
+  2.012149 <--  32: 6c6f 2077 6f72 6c64 2573 2020 2531 3273  0d00 00ff ffff ffff ffff ffff ffff ffff
+  2.014971 <--  32: ffff ffff ffff ffff ffff ffff ffff ffff  ffff ffff ffff ffff ffff ffff ffff ffff
+  2.017659 <--  32: ffff ffff ffff ffff ffff ffff ffff ffff  ffff ffff ffff ffff ffff ffff ffff ffff
+  2.020387 <--  32: ffff ffff ffff ffff ffff ffff ffff ffff  ffff ffff ffff ffff ffff ffff ffff ffff
+  2.023167 <--  32: ffff ffff ffff ffff ffff ffff ffff ffff  ffff ffff ffff ffff ffff ffff ffff ffff
+  2.025368 <--   2: ff10
+  
+  2.025949 -->   6: 5650 0000 0020
+  2.028775 <--   3: 1400 10
+  2.028918 -->   6: 5650 0000 0020
+  2.031848 <--   3: 1400 10
+  2.031977 -->   6: 5650 0000 0020
+  2.034973 <--   3: 1400 10
+  2.035141 -->   6: 5658 0800 0020
+  2.038215 <--   3: 1400 10
+  2.038413 -->   6: 5658 0800 0020
+  2.041454 <--   3: 1400 10
+  2.041646 -->   6: 5658 0800 0020
+  2.044533 <--   3: 1400 10
+  2.044682 -->   6: 5650 0800 0020
+  2.047749 <--   3: 1400 10
+  2.047987 -->   6: 5650 0800 0020
+  2.050921 <--   3: 1400 10
+  2.051154 -->   6: 5650 0800 0020
+  2.054178 <--   3: 1400 10
+
+  2.054415 -->   2: 5120
+  2.056864 <--   2: 1410
diff --git a/nano-1284/.gdb_history b/nano-1284/.gdb_history

new file mode 100644 (file)

index 0000000..3339046
--- /dev/null
+++ b/nano-1284/.gdb_history
@@ -0,0 +1,9 @@
+target remote :1234
+layout split
+stepi
+quit
+target remote :1234
+layout split
+stepi
+b *main+9
+quit
diff --git a/nano-1284/.gdbinit b/nano-1284/.gdbinit

new file mode 100644 (file)

index 0000000..a8c4b59
--- /dev/null
+++ b/nano-1284/.gdbinit
@@ -0,0 +1,5 @@
+set history save on
+set history size 1000
+set history remove-duplicates 2
+set history filename .gdb_history
+
diff --git a/nano-1284/.gitignore b/nano-1284/.gitignore

new file mode 100644 (file)

index 0000000..a959910
--- /dev/null
+++ b/nano-1284/.gitignore
@@ -0,0 +1,4 @@
+.depend
+**/build
+**/dist
+**/sim
diff --git a/nano-1284/.vscode/c_cpp_properties.json b/nano-1284/.vscode/c_cpp_properties.json

new file mode 100644 (file)

index 0000000..773ff69
--- /dev/null
+++ b/nano-1284/.vscode/c_cpp_properties.json
@@ -0,0 +1,26 @@
+{
+    "configurations": [
+        {
+            "name": "Linux AVR",
+            "includePath": [
+                "/usr/lib/avr/include/**",
+                "/usr/lib/gcc/avr/**"
+            ],
+            "defines": [],
+            "compilerPath": "/usr/bin/avr-gcc",
+            "compilerArgs": [
+                "-mmcu=atmega1284p",
+                "-Os",
+                "-DF_CPU=12000000",
+                "-DBAUD_RATE=115200",
+                "-DDOUBLE_SPEED",
+                "-DNUM_LED_FLASHES=4",
+                "-DMAX_TIME_COUNT=F_CPU>>4"
+            ],
+            "cStandard": "gnu11",
+            "cppStandard": "gnu++11",
+            "intelliSenseMode": "linux-gcc-x64"
+        }
+    ],
+    "version": 4
+}
diff --git a/nano-1284/.vscode/launch.json b/nano-1284/.vscode/launch.json

new file mode 100644 (file)

index 0000000..f29cf2e
--- /dev/null
+++ b/nano-1284/.vscode/launch.json
@@ -0,0 +1,37 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Build",
+            // "request": "launch",
+            "type": "node-terminal",
+            "preLaunchTask": "build"
+        },{
+            "name": "Flash",
+            // "request": "launch",
+            "type": "node-terminal",
+            "preLaunchTask": "flash"
+        },{
+            "name": "Clean",
+            // "request": "launch",
+            "type": "node-terminal",
+            "preLaunchTask": "clean"
+        },{
+            // es muss mit simuc --board arduino dist/programm.elf der Simulator 
+            // gestartet werden. Dessen gdb-stub öffnet auf localhost:1234 einen Port
+            "name": "Debug (simuc)",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "${workspaceFolder}/sim/atmega328p.elf",
+            "cwd": "${workspaceFolder}",
+            "externalConsole": false,
+            "MIMode": "gdb",
+            "miDebuggerPath": "/usr/bin/avr-gdb",
+            "miDebuggerServerAddress": ":1234",
+            "preLaunchTask": "build"
+        }
+    ]
+}
diff --git a/nano-1284/.vscode/settings.json b/nano-1284/.vscode/settings.json

new file mode 100644 (file)

index 0000000..1d7e197
--- /dev/null
+++ b/nano-1284/.vscode/settings.json
@@ -0,0 +1,16 @@
+{
+    "[c]": {
+        "editor.insertSpaces": true,
+        "editor.tabSize": 3,
+        "editor.detectIndentation": false
+    },
+    "[h]": {
+        "editor.insertSpaces": true,
+        "editor.tabSize": 3,
+        "editor.detectIndentation": false
+    },
+    "cSpell.words": [],
+    "cSpell.ignorePaths": [
+        "**/*.json", "**/*.c", "**/*.h", "**/Makefile"
+    ]
+}
diff --git a/nano-1284/.vscode/tasks.json b/nano-1284/.vscode/tasks.json

new file mode 100644 (file)

index 0000000..74fb1c7
--- /dev/null
+++ b/nano-1284/.vscode/tasks.json
@@ -0,0 +1,23 @@
+{
+    // See https://go.microsoft.com/fwlink/?LinkId=733558
+    // for the documentation about the tasks.json format
+    "version": "2.0.0",
+    "tasks": [{
+        "label": "build",
+        "type": "shell",
+        "command": "make",
+        "problemMatcher":[
+            "$gcc"
+        ]
+    },{
+        "label": "clean",
+        "type": "shell",
+        "command": "make",
+        "args": [ "clean" ],
+    },{
+        "label": "flash",
+        "type": "shell",
+        "command": "make",
+        "args": [ "flash" ],
+    }]
+}
+\ No newline at end of file
diff --git a/nano-1284/Makefile b/nano-1284/Makefile

new file mode 100644 (file)

index 0000000..2d56707
--- /dev/null
+++ b/nano-1284/Makefile
@@ -0,0 +1,267 @@
+$(shell mkdir -p dist >/dev/null)
+$(shell mkdir -p build >/dev/null)
+$(shell mkdir -p sim >/dev/null)
+$(shell mkdir -p sim/build >/dev/null)
+$(shell mkdir -p release/sim >/dev/null)
+
+# --------------------------------------------------------------------------------
+# Variables configured by engineer
+
+NAME=bootloader-arduino_nano-m1284p_12mhz-115200bps
+DEVICE=atmega1284p
+AVRDUDE_DEVICE=m1284p
+CPU_FREQUENCY=12000000
+BAUDRATE=115200
+START_ADDRESS=0x1e000
+FLASH_SIZE= 0x20000
+
+# --------------------------------------------------------------------------------
+# Automatic created Makefile variables
+
+SRC= $(wildcard src/*.c src/*.cpp src/*/*.c src/*/*.cpp)
+HDR= $(wildcard src/*.h src/*.hpp src/*/*.h src/*/*.hpp)
+MAINSRC= $(wildcard src/main.c src/main.cpp)
+OBJ_CPP = $(SRC:src/%.cpp=build/%.o)
+OBJ = $(OBJ_CPP:src/%.c=build/%.o)
+OBJ_SIM_CPP = $(SRC:src/%.cpp=sim/build/%.o)
+OBJ_SIM = $(OBJ_SIM_CPP:src/%.c=sim/build/%.o)
+
+CC= avr-g++
+CFLAGS= -Wall -mmcu=$(DEVICE) -Os -DF_CPU=$(CPU_FREQUENCY)  -DBAUD_RATE=$(BAUDRATE) -DDOUBLE_SPEED -DNUM_LED_FLASHES=4 '-DMAX_TIME_COUNT=F_CPU>>4' -c
+#LFLAGS= -Wall -mmcu=$(DEVICE) -Os -DF_CPU=$(CPU_FREQUENCY) -Wl,-u,vfprintf -lprintf_flt -lm
+LFLAGS= -Wall -mmcu=$(DEVICE) -Os -DF_CPU=$(CPU_FREQUENCY) -Wl,--section-start=.text=$(START_ADDRESS)
+
+CFLAGS_SIM= -Wall -mmcu=$(DEVICE) -Og -DF_CPU=$(CPU_FREQUENCY) -g  -DBAUD_RATE=$(BAUDRATE) -DDOUBLE_SPEED -DNUM_LED_FLASHES=4 '-DMAX_TIME_COUNT=F_CPU>>4' -c
+#LFLAGS_SIM= -Wall -mmcu=$(DEVICE) -Og -DF_CPU=$(CPU_FREQUENCY) -g -Wl,-u,vfprintf -lprintf_flt -lm
+LFLAGS_SIM= -Wall -mmcu=$(DEVICE) -Og -DF_CPU=$(CPU_FREQUENCY) -g -Wl,--section-start=.text=$(START_ADDRESS)
+
+# --------------------------------------------------------------------------------
+# make targets
+
+.PHONY: all
+all: dist/$(NAME).elf dist/$(NAME).s sim/$(NAME).elf dist/$(NAME).hex dist/$(NAME).bin sim/$(NAME).s info
+
+.PHONY: info
+info:
+       @echo
+       @avr-size --mcu=$(DEVICE) --format=avr dist/$(NAME).elf
+
+# --------------------------------------------------------------------------------
+# dependency make for hierarchical source file structure
+
+.depend: $(SRC) $(HDR)
+       $(CC) -mmcu=$(DEVICE) -MM $(SRC) | sed --regexp-extended 's/^(.*\.o)\: src\/(.*)(\.cpp|\.c) (.*)/build\/\2\.o\: src\/\2\3 \4/g' > .depend
+
+ifneq (clean,$(filter clean,$(MAKECMDGOALS)))
+-include .depend
+endif
+
+# --------------------------------------------------------------------------------
+# elf, hex and assembler file creation
+
+dist/$(NAME).elf: .depend $(OBJ)
+       $(CC) $(LFLAGS) -o $@ $(OBJ)
+
+dist/%.s: dist/%.elf
+       avr-objdump -d $< > $@
+
+dist/%.hex: dist/%.elf
+       avr-objcopy -O ihex $< $@
+
+dist/%.bin: dist/%.elf
+       avr-objcopy -O binary $< $@
+       @head -c $(shell printf "%d\n" $(START_ADDRESS)) /dev/zero | LC_ALL=C tr "\000" "\377" > /tmp/.m328_flash1.bin
+       @cat /tmp/.m328_flash1.bin $@ /tmp/.m328_flash1.bin > /tmp/.m328_flash2.bin
+       @dd if=/tmp/.m328_flash2.bin of=$@ bs=1 count=$(shell printf "%d\n" $(FLASH_SIZE)) 2>/dev/null
+       @rm /tmp/.m328_flash?.bin
+
+# --------------------------------------------------------------------------------
+# check if the macros __DATE__ or __TIME__ are used in src/main.cpp or src/main.c
+ 
+DATE_USED=
+ifneq ($(shell cat $(MAINSRC) | grep __DATE__),)
+       DATE_USED=true
+endif   
+TIME_USED=
+ifneq ($(shell cat $(MAINSRC) | grep __TIME__),)
+       TIME_USED=true
+endif   
+ 
+ifeq (true, $(filter true, $(DATE_USED) $(TIME_USED)))
+build/main.o: $(MAIN_SRC) $(SRC) $(HDR)
+       @mkdir -p $(dir $@)
+       $(CC) $(CFLAGS) -o $@ $<
+endif
+ 
+# --------------------------------------------------------------------------------
+
+build/%.o: src/%.c
+       @mkdir -p $(dir $@)
+       $(CC) $(CFLAGS) -o $@ $<
+
+build/%.o: src/%.cpp
+       @mkdir -p $(dir $@)
+       $(CC) $(CFLAGS) -o $@ $<
+
+# --------------------------------------------------------------------------------
+# simulation/debugging with gdb or simuc
+
+sim/$(NAME).elf: .depend $(OBJ_SIM)
+       $(CC) $(LFLAGS_SIM) -o $@ $(OBJ_SIM)
+       @ln -sf $(NAME).elf sim/$(DEVICE).elf
+
+sim/build/%.o: src/%.c
+       @mkdir -p $(dir $@)
+       $(CC) $(CFLAGS_SIM) -o $@ $<
+
+sim/build/%.o: src/%.cpp
+       @mkdir -p $(dir $@)
+       $(CC) $(CFLAGS_SIM) -o $@ $<
+
+sim/%.s: sim/%.elf
+       avr-objdump -d $< > $@
+
+ifeq (m16, $(AVRDUDE_DEVICE))
+simuc: sim/$(NAME).elf
+       simuc --board sure $<
+endif
+
+ifeq (m328p, $(AVRDUDE_DEVICE))
+simuc: sim/$(NAME).elf
+       simuc --board arduino $<
+endif
+
+ifeq (m644p, $(AVRDUDE_DEVICE))
+simuc: sim/$(NAME).elf
+       simuc --board nano-644 $<
+endif
+
+ifeq (m1284p, $(AVRDUDE_DEVICE))
+simuc: sim/$(NAME).elf
+       simuc --board nano-1284 $<
+endif
+
+gdb: sim/$(NAME).elf
+       avr-gdb $<
+
+# -------------------------------------------------------------
+# flash to target with arduino bootloader in bootloader-section
+
+.PHONY: flash
+flash: dist/$(NAME).elf all
+       avrdude -c arduino -P /dev/ttyUSB0 -b $(BAUDRATE) -p $(AVRDUDE_DEVICE) -e -U flash:w:$<
+
+.PHONY: flash0
+flash0: dist/$(NAME).elf all
+       avrdude -c arduino -P /dev/ttyUSB0 -b $(BAUDRATE)  -p $(AVRDUDE_DEVICE) -e -U flash:w:$<
+
+.PHONY: flash1
+flash1: dist/$(NAME).elf all
+       avrdude -c arduino -P /dev/ttyUSB1 -b $(BAUDRATE)  -p $(AVRDUDE_DEVICE) -e -U flash:w:$<
+
+.PHONY: flash2
+flash2: dist/$(NAME).elf all
+       avrdude -c arduino -P /dev/ttyUSB2 -b $(BAUDRATE)  -p $(AVRDUDE_DEVICE) -e -U flash:w:$<
+
+.PHONY: flash-read
+flash-read:
+       avrdude -c arduino -P /dev/ttyUSB0 -b $(BAUDRATE) -p $(AVRDUDE_DEVICE) -U flash:r:/tmp/flash.bin
+
+.PHONY: flash-disassemble
+flash-disassemble: flash-read
+       avr-objdump -b binary -D -m avr5 /tmp/flash.bin > /tmp/flash.s
+       less /tmp/flash.s
+
+.PHONY: flash-hexdump
+flash-hexdump: flash-read
+       hexdump -C /tmp/flash.bin | less
+
+# ----------------------------------------------
+# flash to target with fischl programming device
+
+.PHONY: isp-flash-$(AVRDUDE_DEVICE)
+isp-$(AVRDUDE_DEVICE):
+       avrdude -c usbasp -p $(AVRDUDE_DEVICE) -U lock:r:-:h
+       avrdude -c usbasp -p $(AVRDUDE_DEVICE)
+
+.PHONY: isp-flash
+isp-flash: dist/$(NAME).elf all
+       avrdude -c usbasp -p $(AVRDUDE_DEVICE) -e -U flash:w:$<
+
+.PHONY: isp-flash-$(AVRDUDE_DEVICE)
+isp-flash-$(AVRDUDE_DEVICE): dist/$(NAME).elf all
+       avrdude -c usbasp -p $(AVRDUDE_DEVICE) -e -U flash:w:$<
+
+.PHONY: isp-read-flash-$(AVRDUDE_DEVICE)
+isp-read-flash-$(AVRDUDE_DEVICE):
+       avrdude -c usbasp -p m32$(AVRDUDE_DEVICE)8p -U flash:r:/tmp/flash-arduino-atmega328p__$(shell date +"%Y-%m-%d_%H%M%S")
+
+.PHONY: isp-fuse
+isp-fuse: isp-fuse-$(AVRDUDE_DEVICE)
+
+.PHONY: isp-fuse-$(AVRDUDE_DEVICE)
+ifeq (m16, $(AVRDUDE_DEVICE))
+isp-fuse-$(AVRDUDE_DEVICE):
+       avrdude -c usbasp -p $(AVRDUDE_DEVICE) -U lfuse:w:0x18:m -U hfuse:w:0xD8:m -U lock:w:0xEF:m
+endif
+ifeq (m328p, $(AVRDUDE_DEVICE))
+isp-fuse-$(AVRDUDE_DEVICE):
+       avrdude -c usbasp -p $(AVRDUDE_DEVICE) -U lfuse:w:0xEF:m -U hfuse:w:0xD8:m -U efuse:w:0xFD:m -U lock:w:0xEF:m
+endif
+ifeq (m644p, $(AVRDUDE_DEVICE))
+isp-fuse-$(AVRDUDE_DEVICE):
+       avrdude -c usbasp -p $(AVRDUDE_DEVICE) -U lfuse:w:0xEF:m -U hfuse:w:0xD8:m -U efuse:w:0xFD:m -U lock:w:0xEF:m
+endif
+ifeq (m1284p, $(AVRDUDE_DEVICE))
+isp-fuse-$(AVRDUDE_DEVICE):
+       avrdude -c usbasp -p $(AVRDUDE_DEVICE) -U lfuse:w:0xEF:m -U hfuse:w:0xD8:m -U efuse:w:0xFD:m -U lock:w:0xEF:m
+endif
+
+# --------------------------------------------------------
+# picocom sends CR for ENTER -> convert cr (\r) to lf (\n)
+
+.PHONY: picocom
+picocom:
+       picocom -b $(BAUDRATE) --omap crlf --raise-dtr /dev/ttyUSB0
+
+.PHONY: picocom0
+picocom0:
+       picocom -b $(BAUDRATE) --omap crlf --raise-dtr /dev/ttyUSB0
+
+.PHONY: picocom1
+picocom1:
+       picocom -b $(BAUDRATE) --omap crlf --raise-dtr /dev/ttyUSB1
+
+.PHONY: picocom2
+picocom2:
+       picocom -b $(BAUDRATE) --omap crlf --raise-dtr /dev/ttyUSB2
+
+# --------------------------------------------------------
+
+.PHONY: help
+help:
+       @echo
+       @echo "Possible targets are:"
+       @echo "   clean"
+       @echo "   all help info"
+       @echo "   flash flash0 flash1 flash2 flash-read flash-disassemble flash-hexdump"
+       @echo "   isp-$(AVRDUDE_DEVICE) isp-flash-$(AVRDUDE_DEVICE) isp-fuse-$(AVRDUDE_DEVICE)"
+       @echo "   picocom picocom0 picocom1 picocom2"
+       @echo "   gdb simuc"
+       @echo
+
+# --------------------------------------------------------
+
+.PHONY: release
+release: dist/$(NAME).elf sim/$(NAME).elf dist/$(NAME).hex dist/$(NAME).bin
+       ../create-release release $(word 1, $^) release/sim $(word 2, $^)
+
+# --------------------------------------------------------
+
+.PHONY: clean
+clean:
+       @rm -r dist
+       @rm -r build
+       @rm -r sim
+       @find . -type f -name ".depend" -exec rm {} \;
+       @echo "clean done"
diff --git a/nano-1284/README.md b/nano-1284/README.md

new file mode 100644 (file)

index 0000000..0f41d06
--- /dev/null
+++ b/nano-1284/README.md
@@ -0,0 +1,126 @@
+# Arduino-Bootloader (STK500) für Nano-1284 (ATmega1284P, 12MHz, 3.3V)
+
+Dieser Bootloader ermöglicht die Programmierung über das "Arduino-System". Als Kommunikationsprotokoll kommt das [STK500 Protokoll]( https://www.microchip.com/content/dam/mchp/documents/OTH/ApplicationNotes/ApplicationNotes/doc2525.pdf) zur Anwendung (Kommunikationsablauf siehe Datei [protocol](protocol)).
+
+Beim Bootloader in [src/main.c](src/main.c) handelt es sich um eine Anpassung von [https://github.com/arduino/ArduinoCore-avr/blob/master/bootloaders/atmega/ATmegaBOOT_168.c](https://github.com/arduino/ArduinoCore-avr/blob/master/bootloaders/atmega/ATmegaBOOT_168.c) an die Hardware des Nano-1284 Boards.
+
+
+## Programmdateien
+
+Der Bootloader kann entweder selbst aus der Quelltextdatei erzeugt werden (siehe [Übersetzung](#%C3%BCbersetzung)), oder es wird eine der bereits fertigen Dateien im Ordner [release](release) verwendet:
+* [release/v2024-10-31_161248/bootloader-arduino_nano-m1284p_12mhz-115200bps.elf](release/v2024-10-31_161248/bootloader-arduino_nano-m1284p_12mhz-115200bps.elf)
+* [release/v2024-10-31_161248/bootloader-arduino_nano-m1284p_12mhz-115200bps.hex](release/v2024-10-31_161248/bootloader-arduino_nano-m1284p_12mhz-115200bps.hex)
+
+Versions Datum und Zeit sind im Flash und somit in der ELF-Datei zu finden. Durch `hexdump -C <datei>.elf` kann diese überprüft werden. Mit einem ISP-Programmiergerät lässt sich auch das Flash aus dem µC auslesen und so die Bootloader-Version kontrollieren.
+
+## Quelltextanpassungen
+
+Diese Anpassung der Quelltext-Datei umfasst:
+* Microcontroller ATmega1284P mit 128KiB Flash (davon die hinteren 8KiB für den Bootloader), 16KiB SRAM und 4KiB EEPROM
+* Frequenz 12MHz
+* Serielle Schnittstelle: **115200/8N1**
+* 3 LEDs (rot, gelb, grün)
+* Assembler-Anweisungen durch Macros aus `avr/boot.h` ersetzt
+* Quelltextkorrekturen, damit der Bootloader auch bei einer Page-Size von 256 Byte funktioniert
+
+
+## Übersetzung
+
+Folgende Tools sind erforderlich:
+* avr-gcc
+* avrdude
+
+Auf einem Linux-Debian System müssen daher folgende Pakete installiert sein:
+```sh
+sudo apt update
+sudo apt install gcc-avr avr-libc binutils-avr avrdude
+```
+
+Die Übersetzung erfolgt dann mit dem Kommando `make`.
+
+## Download auf den µC
+
+Die korrekte Programmierung der Fuses sowie der Download des Bootloaders in den Bootloader-Bereich des µC-Flash kann mit Hilfe eines [USBasp-Programmiergeräts](https://www.fischl.de/usbasp/) mit folgenden Kommandos erfolgen:
+
+```sh
+make isp-fuse
+make isp-flash
+```
+
+Nach der Programmierung sollten die drei LEDs den Start des Bootloader anzeigen (rot -> rot+orange -> grün -> grün blinken).
+
+Falls die *release-Version* programmiert werden soll, muss nach dem `make` die elf-Datei zuvor in den Ordner `dist` kopiert werden.
+
+```sh
+make
+cp  release/v2024-10-31_161248/bootloader-arduino_nano-m1284p_12mhz-115200bps.elf dist/
+make isp-fuse
+make isp-flash
+```
+
+## Download von Programmen mit Hilfe des Bootloaders
+
+Sobald sich am µC ein Bootloader befindet ist kein Programmiergerät mehr erforderlich. Das Programm wird über die serielle UART-Schnittstelle (via USB-Schnittstelle) in den Flash gespeichert.
+
+UART-Schnittstelle (Option `-P`) und Name der ELF-Programmdatei (nach `flash:w:`) sind anzupassen...
+
+```sh
+avrdude -c arduino -p m1284p -P /dev/ttyUSB0 -b 115200 -e -U flash:w:programm.elf
+```
+
+## Einbindung in die Arduino IDE
+
+Zunächst den Ordner mit der Arduino Installation finden. Unter Linux ist das der Pfad:
+```
+/usr/share/arduino/hardware/arduino/avr
+```
+
+Dort im Unterordner `bootloaders` einen Ordner `atmeg1284` anlegen und darin die Intel-Hex Datei des Bootloaders ablegen.
+
+```sh
+make
+sudo mkdir /usr/share/arduino/hardware/arduino/avr/bootloaders/atmega1284
+cp dist/bootloader-arduino_nano-m1284p_12mhz-115200bps.hex /usr/share/arduino/hardware/arduino/avr/bootloaders/atmega1284/
+```
+
+Danach in der Datei `/usr/share/arduino/hardware/arduino/avr/boards.txt` folgende Einträge ergänzen:
+```
+#########################################################
+
+nano1284.name=Nano-1284
+
+nano1284.vid.0=0x1a86
+nano1284.pid.0=0x7522
+nano1284.upload_port.0.vid=0x1a86
+nano1284.upload_port.0.pid=0x7522
+
+nano1284.upload.tool=avrdude
+nano1284.upload.tool.default=avrdude
+nano1284.upload.tool.network=arduino_ota
+nano1284.upload.protocol=arduino
+nano1284.upload.maximum_size=122880
+nano1284.upload.maximum_data_size=16384
+nano1284.upload.speed=115200
+
+nano1284.bootloader.tool=avrdude
+nano1284.bootloader.tool.default=avrdude
+nano1284.bootloader.low_fuses=0xEF
+nano1284.bootloader.high_fuses=0xD8
+nano1284.bootloader.extended_fuses=0xFD
+nano1284.bootloader.unlock_bits=0x3F
+nano1284.bootloader.lock_bits=0xEF
+nano1284.bootloader.file=atmega1284/bootloader-arduino_nano-m1284p_12mhz-115200bps.hex
+
+nano1284.build.mcu=atmega1284p
+nano1284.build.f_cpu=12000000L
+nano1284.build.board=AVR_NANO1284
+nano1284.build.core=arduino
+nano1284.build.variant=standard
+
+##############################################################
+```
+
+Nach dem Start der Arduino-IDE kann:
+* über das Menü *Werkzeuge->Board* das ***Nano-1284*** gewählt werden
+* über das Menü *Werkzeuge->Programmer* der ***ArduinoISP*** gewählt werden
+
diff --git a/nano-1284/protocol b/nano-1284/protocol

new file mode 100644 (file)

index 0000000..8c0ea61
--- /dev/null
+++ b/nano-1284/protocol
@@ -0,0 +1,323 @@
+  0.552750 -->   2: 3020
+  0.555474 <--   2: 1410
+  0.803623 -->   2: 3020
+  0.806825 <--   2: 1410
+  1.054395 -->   2: 3020
+  1.057282 <--   2: 1410
+
+  1.057514 -->   3: 4181 20
+  1.060837 <--   3: 1401 10
+  1.061061 -->   3: 4182 20
+  1.063819 <--   3: 1410 10
+  1.064049 -->  22: 4282 0000 0101 0101 03ff ffff ff01 0008  0000 0100 0020
+  1.068274 <--   2: 1410
+  1.068436 -->   7: 4505 08d7 a000 20
+  1.071346 <--   2: 1410
+  1.071432 -->   2: 5020
+  1.074021 <--   2: 1410
+  1.084349 -->   2: 7520
+  1.087176 <--   5: 141e 960a 10
+  1.087341 -->   6: 5650 0000 0020
+  1.090435 <--   3: 1400 10
+  1.090608 -->   6: 5650 0000 0020
+  1.093517 <--   3: 1400 10
+  1.093662 -->   6: 5650 0000 0020
+  1.096678 <--   3: 1400 10
+  1.096838 -->   6: 5658 0800 0020
+  1.099974 <--   3: 1400 10
+  1.100216 -->   6: 5658 0800 0020
+  1.103433 <--   3: 1400 10
+  1.103621 -->   6: 5658 0800 0020
+  1.106596 <--   3: 1400 10
+  1.106798 -->   6: 5650 0800 0020
+  1.109878 <--   3: 1400 10
+  1.110108 -->   6: 5650 0800 0020
+  1.113015 <--   3: 1400 10
+  1.113141 -->   6: 5650 0800 0020
+  1.116120 <--   3: 1400 10
+  1.116256 -->   6: 56ac 8000 0020
+  1.119179 <--   3: 1400 10
+  1.174951 -->   3: 4181 20
+  1.177570 <--   3: 1401 10
+  1.177770 -->   3: 4182 20
+  1.180450 <--   3: 1410 10
+  1.180666 -->  22: 4282 0000 0101 0101 03ff ffff ff01 0008  0000 0100 0020
+  1.184868 <--   2: 1410
+  1.185056 -->   7: 4505 08d7 a000 20
+  1.187956 <--   2: 1410
+  1.188059 -->   2: 5020
+  1.190517 <--   2: 1410
+  
+  1.191326 -->   4: 5500 0020
+  1.193964 <--   2: 1410
+  
+  1.194133 -->  32: 6401 0046 0c94 3e00 0c94 5b00 0c94 5b00  0c94 5b00 0c94 5b00 0c94 5b00 0c94 5b00
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+  1.208326 -->   5: 0f92 0fb6 20
+  1.255493 <--   2: 1410
+  
+  1.255743 -->   4: 5580 0020
+  1.258608 <--   2: 1410
+  
+  1.258821 -->  32: 6401 0046 0f92 1124 8f93 9f93 ef93 ff93  98b1 88e0 8927 88b9 8091 c600 8093 ce00
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+  1.272904 -->   5: 86e0 91e0 20
+  1.320139 <--   2: 1410
+  
+  1.320378 -->   4: 5500 0120
+  1.323002 <--   2: 1410
+  
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+  1.334544 -->  32: 8532 29f4 b601 90e0 0e94 4103 e7cf 912c  212c 312c ffe1 f315 d8f0 8b32 79f0 38f4
+  1.337305 -->   5: 8032 79f0 20
+  1.384623 <--   2: 1410
+  
+  1.384878 -->   4: 5580 0120
+  1.387608 <--   2: 1410
+  
+  1.387773 -->  32: 6401 0046 8332 a1f4 232d 2061 1dc0 8d32  61f0 8033 69f4 232d 2160 16c0 832d 8260
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+  1.401922 -->   5: b180 36fe 20
+  1.448945 <--   2: 1410
+  
+  1.449212 -->   4: 5500 0220
+  1.451904 <--   2: 1410
+  
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+  1.466235 -->   5: b22e 06c0 20
+  1.513447 <--   2: 1410
+  
+  1.513715 -->   4: 5580 0220
+  1.516432 <--   2: 1410
+  
+  1.516636 -->  32: 6401 0046 28e0 30e0 05c0 20e1 30e0 02c0  20e1 32e0 f801 b7fe 07c0 6081 7181 8281
+  1.516663 -->  32: 9381 0c5f 1f4f 06c0 6081 7181 80e0 90e0  0e5f 1f4f a301 0e94 7d03 882e 8618 fb2d
+  1.516831 -->  32: ff77 3f2e 36fe 0dc0 232d 2e7f a22e 8914  58f4 34fe 0bc0 32fc 09c0 832d 8e7e a82e
+  1.516877 -->  32: 05c0 b82c a32c 03c0 b82c 01c0 b92c a4fe  0fc0 fe01 e80d f11d 8081 8033 21f4 9a2d
+  1.519644 -->  32: 997e a92e 09c0 a2fe 06c0 b394 b394 04c0  8a2d 8678 09f0 b394 a3fc 11c0 a0fe 06c0
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+  1.530784 -->   5: 8de2 b601 20
+  1.577915 <--   2: 1410
+  
+  1.578186 -->   4: 5500 0320
+  1.580952 <--   2: 1410
+  
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+  1.581358 -->  32: 4103 2a94 f6cf f601 8681 9781 02c0 8fef  9fef 2b96 e2e1 0c94 f703 fc01 0590 6150
+  1.581385 -->  32: 7040 0110 d8f7 8095 9095 8e0f 9f1f 0895  fc01 6150 7040 0190 0110 d8f7 8095 9095
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+  1.589734 -->  32: 3781 2f5f 3f4f 3783 2683 14c0 8b01 ec01  fb01 0084 f185 e02d 0995 892b e1f6 d801
+  1.592493 -->  32: 1696 8d91 9c91 1797 0196 1796 9c93 8e93  1697 ce01 df91 cf91 1f91 0f91 0895 fa01
+  1.595249 -->   5: aa27 2830 20
+  1.642464 <--   2: 1410
+  
+  1.642718 -->   4: 5580 0320
+  1.645473 <--   2: 1410
+  
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+  1.645701 -->  32: 3cd0 670f 781f 891f 9a1f a11d 680f 791f  8a1f 911d a11d 6a0f 711d 811d 911d a11d
+  1.645848 -->  32: 20d0 09f4 6894 3f91 2ae0 269f 1124 3019  305d 3193 def6 cf01 0895 462f 4770 405d
+  1.645887 -->  32: 4193 b3e0 0fd0 c9f7 f6cf 462f 4f70 405d  4a33 18f0 495d 31fd 4052 4193 02d0 a9f7
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+  1.659779 -->   5: 9b84 aa84 20
+  1.706941 <--   2: 1410
+  
+  1.707172 -->   4: 5500 0420
+  1.709845 <--   2: 1410
+  
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+  1.713085 -->  32: ffff ffff ffff ffff ffff ffff ffff ffff  ffff ffff ffff ffff ffff ffff ffff ffff
+  1.715997 -->  32: ffff ffff ffff ffff ffff ffff ffff ffff  ffff ffff ffff ffff ffff ffff ffff ffff
+  1.718639 -->  32: ffff ffff ffff ffff ffff ffff ffff ffff  ffff ffff ffff ffff ffff ffff ffff ffff
+  1.721439 -->  32: ffff ffff ffff ffff ffff ffff ffff ffff  ffff ffff ffff ffff ffff ffff ffff ffff
+  1.724135 -->   5: ffff ffff 20
+  1.771467 <--   2: 1410
+  
+  1.772647 -->   4: 5500 0020
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+  
+  1.775659 -->   5: 7401 0046 20
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+  
+  1.800878 -->   4: 5580 0020
+  1.803619 <--   2: 1410
+  
+  1.803814 -->   5: 7401 0046 20
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+  1.831444 <--   2: 1410
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+  1.831620 -->   5: 7401 0046 20
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+  1.859363 <--   2: 1410
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+  2.035141 -->   6: 5658 0800 0020
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+  2.041646 -->   6: 5658 0800 0020
+  2.044533 <--   3: 1400 10
+  2.044682 -->   6: 5650 0800 0020
+  2.047749 <--   3: 1400 10
+  2.047987 -->   6: 5650 0800 0020
+  2.050921 <--   3: 1400 10
+  2.051154 -->   6: 5650 0800 0020
+  2.054178 <--   3: 1400 10
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+  2.054415 -->   2: 5120
+  2.056864 <--   2: 1410
diff --git a/nano-1284/release/v2024-10-31_161248/bootloader-arduino_nano-m1284p_12mhz-115200bps.bin b/nano-1284/release/v2024-10-31_161248/bootloader-arduino_nano-m1284p_12mhz-115200bps.bin

new file mode 100755 (executable)

index 0000000..bbe9798
--- /dev/null
+++ b/nano-1284/release/v2024-10-31_161248/bootloader-arduino_nano-m1284p_12mhz-115200bps.bin
@@ -0,0 +1,20 @@
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+\ 2\90\91\v\ 2\ e\941ó\ fÀà\91
+\ 2ð\91\v\ 2\81ý\ 2À\84\91\aÀÏ\ 1 à°à\11\96«¿ü\ 1\87\91\ e\94eð\80\91
+\ 2\90\91\v\ 2\ 1\96\90\93\v\ 2\80\93
+\ 2!\96ÏÏ\857\19õ\ e\94\80ð\802\81ô\84á\ e\94eð\8eá\ e\94eð\87é\ e\94eð\85à\ e\94eð\80á\ e\94eðHÎ\80\91\ 2\ 1\8f_\80\93\ 2\ 1\850  ô\17¸\18¸à\91\0\ 1ð\91\ 1\ 1   \959Î\867   ð6Î³Îù\99þÏ\92½\81½ø\9a\99'\80µ\b\95&/ù\99þÏ\1fº\92½\81½ ½\ f¶ø\94ú\9aù\9a\ f¾\ 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ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ
+\ No newline at end of file
diff --git a/nano-1284/release/v2024-10-31_161248/bootloader-arduino_nano-m1284p_12mhz-115200bps.elf b/nano-1284/release/v2024-10-31_161248/bootloader-arduino_nano-m1284p_12mhz-115200bps.elf

new file mode 100755 (executable)

index 0000000..c03a32e

Binary files /dev/null and b/nano-1284/release/v2024-10-31_161248/bootloader-arduino_nano-m1284p_12mhz-115200bps.elf differ
diff --git a/nano-1284/release/v2024-10-31_161248/bootloader-arduino_nano-m1284p_12mhz-115200bps.hex b/nano-1284/release/v2024-10-31_161248/bootloader-arduino_nano-m1284p_12mhz-115200bps.hex

new file mode 100644 (file)

index 0000000..b4b402a
--- /dev/null
+++ b/nano-1284/release/v2024-10-31_161248/bootloader-arduino_nano-m1284p_12mhz-115200bps.hex
@@ -0,0 +1,109 @@
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diff --git a/nano-1284/src b/nano-1284/src

new file mode 120000 (symlink)

index 0000000..5cd551c
--- /dev/null
+++ b/nano-1284/src
@@ -0,0 +1 @@
+../src
+\ No newline at end of file
diff --git a/nano-328/.gdb_history b/nano-328/.gdb_history

new file mode 100644 (file)

index 0000000..3339046
--- /dev/null
+++ b/nano-328/.gdb_history
@@ -0,0 +1,9 @@
+target remote :1234
+layout split
+stepi
+quit
+target remote :1234
+layout split
+stepi
+b *main+9
+quit
diff --git a/nano-328/.gdbinit b/nano-328/.gdbinit

new file mode 100644 (file)

index 0000000..a8c4b59
--- /dev/null
+++ b/nano-328/.gdbinit
@@ -0,0 +1,5 @@
+set history save on
+set history size 1000
+set history remove-duplicates 2
+set history filename .gdb_history
+
diff --git a/nano-328/.gitignore b/nano-328/.gitignore

new file mode 100644 (file)

index 0000000..a959910
--- /dev/null
+++ b/nano-328/.gitignore
@@ -0,0 +1,4 @@
+.depend
+**/build
+**/dist
+**/sim
diff --git a/nano-328/.vscode/c_cpp_properties.json b/nano-328/.vscode/c_cpp_properties.json

new file mode 100644 (file)

index 0000000..00f3a55
--- /dev/null
+++ b/nano-328/.vscode/c_cpp_properties.json
@@ -0,0 +1,26 @@
+{
+    "configurations": [
+        {
+            "name": "Linux AVR",
+            "includePath": [
+                "/usr/lib/avr/include/**",
+                "/usr/lib/gcc/avr/**"
+            ],
+            "defines": [],
+            "compilerPath": "/usr/bin/avr-gcc",
+            "compilerArgs": [
+                "-mmcu=atmega328p",
+                "-Os",
+                "-DF_CPU=16000000",
+                "-DBAUD_RATE=115200",
+                "-DDOUBLE_SPEED",
+                "-DNUM_LED_FLASHES=4",
+                "-DMAX_TIME_COUNT=F_CPU>>4"
+            ],
+            "cStandard": "gnu11",
+            "cppStandard": "gnu++11",
+            "intelliSenseMode": "linux-gcc-x64"
+        }
+    ],
+    "version": 4
+}
diff --git a/nano-328/.vscode/launch.json b/nano-328/.vscode/launch.json

new file mode 100644 (file)

index 0000000..f29cf2e
--- /dev/null
+++ b/nano-328/.vscode/launch.json
@@ -0,0 +1,37 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Build",
+            // "request": "launch",
+            "type": "node-terminal",
+            "preLaunchTask": "build"
+        },{
+            "name": "Flash",
+            // "request": "launch",
+            "type": "node-terminal",
+            "preLaunchTask": "flash"
+        },{
+            "name": "Clean",
+            // "request": "launch",
+            "type": "node-terminal",
+            "preLaunchTask": "clean"
+        },{
+            // es muss mit simuc --board arduino dist/programm.elf der Simulator 
+            // gestartet werden. Dessen gdb-stub öffnet auf localhost:1234 einen Port
+            "name": "Debug (simuc)",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "${workspaceFolder}/sim/atmega328p.elf",
+            "cwd": "${workspaceFolder}",
+            "externalConsole": false,
+            "MIMode": "gdb",
+            "miDebuggerPath": "/usr/bin/avr-gdb",
+            "miDebuggerServerAddress": ":1234",
+            "preLaunchTask": "build"
+        }
+    ]
+}
diff --git a/nano-328/.vscode/settings.json b/nano-328/.vscode/settings.json

new file mode 100644 (file)

index 0000000..ced9cb9
--- /dev/null
+++ b/nano-328/.vscode/settings.json
@@ -0,0 +1,19 @@
+{
+    "[c]": {
+        "editor.insertSpaces": true,
+        "editor.tabSize": 3,
+        "editor.detectIndentation": false
+    },
+    "[h]": {
+        "editor.insertSpaces": true,
+        "editor.tabSize": 3,
+        "editor.detectIndentation": false
+    },
+    "cSpell.words": [],
+    "cSpell.ignorePaths": [
+        "**/*.json", "**/*.c", "**/*.h", "**/Makefile"
+    ],
+    "files.associations": {
+        "io.h": "c"
+    }
+}
diff --git a/nano-328/.vscode/tasks.json b/nano-328/.vscode/tasks.json

new file mode 100644 (file)

index 0000000..74fb1c7
--- /dev/null
+++ b/nano-328/.vscode/tasks.json
@@ -0,0 +1,23 @@
+{
+    // See https://go.microsoft.com/fwlink/?LinkId=733558
+    // for the documentation about the tasks.json format
+    "version": "2.0.0",
+    "tasks": [{
+        "label": "build",
+        "type": "shell",
+        "command": "make",
+        "problemMatcher":[
+            "$gcc"
+        ]
+    },{
+        "label": "clean",
+        "type": "shell",
+        "command": "make",
+        "args": [ "clean" ],
+    },{
+        "label": "flash",
+        "type": "shell",
+        "command": "make",
+        "args": [ "flash" ],
+    }]
+}
+\ No newline at end of file
diff --git a/nano-328/Makefile b/nano-328/Makefile

new file mode 100644 (file)

index 0000000..01e10f8
--- /dev/null
+++ b/nano-328/Makefile
@@ -0,0 +1,267 @@
+$(shell mkdir -p dist >/dev/null)
+$(shell mkdir -p build >/dev/null)
+$(shell mkdir -p sim >/dev/null)
+$(shell mkdir -p sim/build >/dev/null)
+$(shell mkdir -p release/sim >/dev/null)
+
+# --------------------------------------------------------------------------------
+# Variables configured by engineer
+
+NAME=bootloader-arduino_nano-m328p_16mhz-38400bps
+DEVICE=atmega328p
+AVRDUDE_DEVICE=m328p
+CPU_FREQUENCY=16000000
+BAUDRATE=38400
+START_ADDRESS=0x7000
+FLASH_SIZE=0x8000
+
+# --------------------------------------------------------------------------------
+# Automatic created Makefile variables
+
+SRC= $(wildcard src/*.c src/*.cpp src/*/*.c src/*/*.cpp)
+HDR= $(wildcard src/*.h src/*.hpp src/*/*.h src/*/*.hpp)
+MAINSRC= $(wildcard src/main.c src/main.cpp)
+OBJ_CPP = $(SRC:src/%.cpp=build/%.o)
+OBJ = $(OBJ_CPP:src/%.c=build/%.o)
+OBJ_SIM_CPP = $(SRC:src/%.cpp=sim/build/%.o)
+OBJ_SIM = $(OBJ_SIM_CPP:src/%.c=sim/build/%.o)
+
+CC= avr-g++
+CFLAGS= -Wall -mmcu=$(DEVICE) -Os -DF_CPU=$(CPU_FREQUENCY)  -DBAUD_RATE=$(BAUDRATE) -DDOUBLE_SPEED -DNUM_LED_FLASHES=4 '-DMAX_TIME_COUNT=F_CPU>>4' -c
+#LFLAGS= -Wall -mmcu=$(DEVICE) -Os -DF_CPU=$(CPU_FREQUENCY) -Wl,-u,vfprintf -lprintf_flt -lm
+LFLAGS= -Wall -mmcu=$(DEVICE) -Os -DF_CPU=$(CPU_FREQUENCY) -Wl,--section-start=.text=$(START_ADDRESS)
+
+CFLAGS_SIM= -Wall -mmcu=$(DEVICE) -Og -DF_CPU=$(CPU_FREQUENCY) -g  -DBAUD_RATE=$(BAUDRATE) -DDOUBLE_SPEED -DNUM_LED_FLASHES=4 '-DMAX_TIME_COUNT=F_CPU>>4' -c
+#LFLAGS_SIM= -Wall -mmcu=$(DEVICE) -Og -DF_CPU=$(CPU_FREQUENCY) -g -Wl,-u,vfprintf -lprintf_flt -lm
+LFLAGS_SIM= -Wall -mmcu=$(DEVICE) -Og -DF_CPU=$(CPU_FREQUENCY) -g -Wl,--section-start=.text=$(START_ADDRESS)
+
+# --------------------------------------------------------------------------------
+# make targets
+
+.PHONY: all
+all: dist/$(NAME).elf dist/$(NAME).s sim/$(NAME).elf dist/$(NAME).hex dist/$(NAME).bin sim/$(NAME).s info
+
+.PHONY: info
+info:
+       @echo
+       @avr-size --mcu=$(DEVICE) --format=avr dist/$(NAME).elf
+
+# --------------------------------------------------------------------------------
+# dependency make for hierarchical source file structure
+
+.depend: $(SRC) $(HDR)
+       $(CC) -mmcu=$(DEVICE) -MM $(SRC) | sed --regexp-extended 's/^(.*\.o)\: src\/(.*)(\.cpp|\.c) (.*)/build\/\2\.o\: src\/\2\3 \4/g' > .depend
+
+ifneq (clean,$(filter clean,$(MAKECMDGOALS)))
+-include .depend
+endif
+
+# --------------------------------------------------------------------------------
+# elf, hex and assembler file creation
+
+dist/$(NAME).elf: .depend $(OBJ)
+       $(CC) $(LFLAGS) -o $@ $(OBJ)
+
+dist/%.s: dist/%.elf
+       avr-objdump -d $< > $@
+
+dist/%.hex: dist/%.elf
+       avr-objcopy -O ihex $< $@
+
+dist/%.bin: dist/%.elf
+       avr-objcopy -O binary $< $@
+       @head -c $(shell printf "%d\n" $(START_ADDRESS)) /dev/zero | LC_ALL=C tr "\000" "\377" > /tmp/.m328_flash1.bin
+       @cat /tmp/.m328_flash1.bin $@ /tmp/.m328_flash1.bin > /tmp/.m328_flash2.bin
+       @dd if=/tmp/.m328_flash2.bin of=$@ bs=1 count=$(shell printf "%d\n" $(FLASH_SIZE)) 2>/dev/null
+       @rm /tmp/.m328_flash?.bin
+
+# --------------------------------------------------------------------------------
+# check if the macros __DATE__ or __TIME__ are used in src/main.cpp or src/main.c
+ 
+DATE_USED=
+ifneq ($(shell cat $(MAINSRC) | grep __DATE__),)
+       DATE_USED=true
+endif   
+TIME_USED=
+ifneq ($(shell cat $(MAINSRC) | grep __TIME__),)
+       TIME_USED=true
+endif   
+ 
+ifeq (true, $(filter true, $(DATE_USED) $(TIME_USED)))
+build/main.o: $(MAIN_SRC) $(SRC) $(HDR)
+       @mkdir -p $(dir $@)
+       $(CC) $(CFLAGS) -o $@ $<
+endif
+ 
+# --------------------------------------------------------------------------------
+
+build/%.o: src/%.c
+       @mkdir -p $(dir $@)
+       $(CC) $(CFLAGS) -o $@ $<
+
+build/%.o: src/%.cpp
+       @mkdir -p $(dir $@)
+       $(CC) $(CFLAGS) -o $@ $<
+
+# --------------------------------------------------------------------------------
+# simulation/debugging with gdb or simuc
+
+sim/$(NAME).elf: .depend $(OBJ_SIM)
+       $(CC) $(LFLAGS_SIM) -o $@ $(OBJ_SIM)
+       @ln -sf $(NAME).elf sim/$(DEVICE).elf
+
+sim/build/%.o: src/%.c
+       @mkdir -p $(dir $@)
+       $(CC) $(CFLAGS_SIM) -o $@ $<
+
+sim/build/%.o: src/%.cpp
+       @mkdir -p $(dir $@)
+       $(CC) $(CFLAGS_SIM) -o $@ $<
+
+sim/%.s: sim/%.elf
+       avr-objdump -d $< > $@
+
+ifeq (m16, $(AVRDUDE_DEVICE))
+simuc: sim/$(NAME).elf
+       simuc --board sure $<
+endif
+
+ifeq (m328p, $(AVRDUDE_DEVICE))
+simuc: sim/$(NAME).elf
+       simuc --board arduino $<
+endif
+
+ifeq (m644p, $(AVRDUDE_DEVICE))
+simuc: sim/$(NAME).elf
+       simuc --board nano-644 $<
+endif
+
+ifeq (m1284p, $(AVRDUDE_DEVICE))
+simuc: sim/$(NAME).elf
+       simuc --board nano-1284 $<
+endif
+
+gdb: sim/$(NAME).elf
+       avr-gdb $<
+
+# -------------------------------------------------------------
+# flash to target with arduino bootloader in bootloader-section
+
+.PHONY: flash
+flash: dist/$(NAME).elf all
+       avrdude -c arduino -P /dev/ttyUSB0 -b $(BAUDRATE) -p $(AVRDUDE_DEVICE) -e -U flash:w:$<
+
+.PHONY: flash0
+flash0: dist/$(NAME).elf all
+       avrdude -c arduino -P /dev/ttyUSB0 -b $(BAUDRATE)  -p $(AVRDUDE_DEVICE) -e -U flash:w:$<
+
+.PHONY: flash1
+flash1: dist/$(NAME).elf all
+       avrdude -c arduino -P /dev/ttyUSB1 -b $(BAUDRATE)  -p $(AVRDUDE_DEVICE) -e -U flash:w:$<
+
+.PHONY: flash2
+flash2: dist/$(NAME).elf all
+       avrdude -c arduino -P /dev/ttyUSB2 -b $(BAUDRATE)  -p $(AVRDUDE_DEVICE) -e -U flash:w:$<
+
+.PHONY: flash-read
+flash-read:
+       avrdude -c arduino -P /dev/ttyUSB0 -b $(BAUDRATE) -p $(AVRDUDE_DEVICE) -U flash:r:/tmp/flash.bin
+
+.PHONY: flash-disassemble
+flash-disassemble: flash-read
+       avr-objdump -b binary -D -m avr5 /tmp/flash.bin > /tmp/flash.s
+       less /tmp/flash.s
+
+.PHONY: flash-hexdump
+flash-hexdump: flash-read
+       hexdump -C /tmp/flash.bin | less
+
+# ----------------------------------------------
+# flash to target with fischl programming device
+
+.PHONY: isp-flash-$(AVRDUDE_DEVICE)
+isp-$(AVRDUDE_DEVICE):
+       avrdude -c usbasp -p $(AVRDUDE_DEVICE) -U lock:r:-:h
+       avrdude -c usbasp -p $(AVRDUDE_DEVICE)
+
+.PHONY: isp-flash
+isp-flash: dist/$(NAME).elf all
+       avrdude -c usbasp -p $(AVRDUDE_DEVICE) -e -U flash:w:$<
+
+.PHONY: isp-flash-$(AVRDUDE_DEVICE)
+isp-flash-$(AVRDUDE_DEVICE): dist/$(NAME).elf all
+       avrdude -c usbasp -p $(AVRDUDE_DEVICE) -e -U flash:w:$<
+
+.PHONY: isp-read-flash-$(AVRDUDE_DEVICE)
+isp-read-flash-$(AVRDUDE_DEVICE):
+       avrdude -c usbasp -p m32$(AVRDUDE_DEVICE)8p -U flash:r:/tmp/flash-arduino-atmega328p__$(shell date +"%Y-%m-%d_%H%M%S")
+
+.PHONY: isp-fuse
+isp-fuse: isp-fuse-$(AVRDUDE_DEVICE)
+
+.PHONY: isp-fuse-$(AVRDUDE_DEVICE)
+ifeq (m16, $(AVRDUDE_DEVICE))
+isp-fuse-$(AVRDUDE_DEVICE):
+       avrdude -c usbasp -p $(AVRDUDE_DEVICE) -U lfuse:w:0x18:m -U hfuse:w:0xD8:m -U lock:w:0xEF:m
+endif
+ifeq (m328p, $(AVRDUDE_DEVICE))
+isp-fuse-$(AVRDUDE_DEVICE):
+       avrdude -c usbasp -p $(AVRDUDE_DEVICE) -U lfuse:w:0xEF:m -U hfuse:w:0xD8:m -U efuse:w:0xFD:m -U lock:w:0xEF:m
+endif
+ifeq (m644p, $(AVRDUDE_DEVICE))
+isp-fuse-$(AVRDUDE_DEVICE):
+       avrdude -c usbasp -p $(AVRDUDE_DEVICE) -U lfuse:w:0xEF:m -U hfuse:w:0xD8:m -U efuse:w:0xFD:m -U lock:w:0xEF:m
+endif
+ifeq (m1284p, $(AVRDUDE_DEVICE))
+isp-fuse-$(AVRDUDE_DEVICE):
+       avrdude -c usbasp -p $(AVRDUDE_DEVICE) -U lfuse:w:0xEF:m -U hfuse:w:0xD8:m -U efuse:w:0xFD:m -U lock:w:0xEF:m
+endif
+
+# --------------------------------------------------------
+# picocom sends CR for ENTER -> convert cr (\r) to lf (\n)
+
+.PHONY: picocom
+picocom:
+       picocom -b $(BAUDRATE) --omap crlf --raise-dtr /dev/ttyUSB0
+
+.PHONY: picocom0
+picocom0:
+       picocom -b $(BAUDRATE) --omap crlf --raise-dtr /dev/ttyUSB0
+
+.PHONY: picocom1
+picocom1:
+       picocom -b $(BAUDRATE) --omap crlf --raise-dtr /dev/ttyUSB1
+
+.PHONY: picocom2
+picocom2:
+       picocom -b $(BAUDRATE) --omap crlf --raise-dtr /dev/ttyUSB2
+
+# --------------------------------------------------------
+
+.PHONY: help
+help:
+       @echo
+       @echo "Possible targets are:"
+       @echo "   clean"
+       @echo "   all help info"
+       @echo "   flash flash0 flash1 flash2 flash-read flash-disassemble flash-hexdump"
+       @echo "   isp-$(AVRDUDE_DEVICE) isp-flash-$(AVRDUDE_DEVICE) isp-fuse-$(AVRDUDE_DEVICE)"
+       @echo "   picocom picocom0 picocom1 picocom2"
+       @echo "   gdb simuc"
+       @echo
+
+# --------------------------------------------------------
+
+.PHONY: release
+release: dist/$(NAME).elf sim/$(NAME).elf dist/$(NAME).hex dist/$(NAME).bin
+       ../create-release release $(word 1, $^) release/sim $(word 2, $^)
+
+# --------------------------------------------------------
+
+.PHONY: clean
+clean:
+       @rm -r dist
+       @rm -r build
+       @rm -r sim
+       @find . -type f -name ".depend" -exec rm {} \;
+       @echo "clean done"
diff --git a/nano-328/README.md b/nano-328/README.md

new file mode 100644 (file)

index 0000000..155272c
--- /dev/null
+++ b/nano-328/README.md
@@ -0,0 +1,73 @@
+# Arduino-Bootloader (STK500) für Arduino Nano (ATmega328P, 16MHz, 5V))
+
+Dieser Bootloader ermöglicht die Programmierung über das "Arduino-System". Als Kommunikationsprotokoll kommt das [STK500 Protokoll]( https://www.microchip.com/content/dam/mchp/documents/OTH/ApplicationNotes/ApplicationNotes/doc2525.pdf) zur Anwendung (Kommunikationsablauf siehe Datei [protocol](protocol)).
+
+Beim Bootloader in [src/main.c](src/main.c) handelt es sich um eine Anpassung von [https://github.com/arduino/ArduinoCore-avr/blob/master/bootloaders/atmega/ATmegaBOOT_168.c](https://github.com/arduino/ArduinoCore-avr/blob/master/bootloaders/atmega/ATmegaBOOT_168.c) an die Hardware des Nano-1284 Boards.
+
+## Programmdateien
+
+Der Bootloader kann entweder selbst aus der Quelltextdatei erzeugt werden (siehe [Übersetzung](#%C3%BCbersetzung)), oder es wird eine der bereits fertigen Dateien im Ordner [release](release) verwendet:
+
+* [release/v2024-10-31_161247/bootloader-arduino_nano-m328p_16mhz-38400bps.elf](release/v2024-10-31_161247/bootloader-arduino_nano-m328p_16mhz-38400bps.elf)
+* [release/v2024-10-31_161247/bootloader-arduino_nano-m328p_16mhz-38400bps.hex](release/v2024-10-31_161247/bootloader-arduino_nano-m328p_16mhz-38400bps.hex)
+
+Versions Datum und Zeit sind im Flash und somit in der ELF-Datei zu finden. Durch `hexdump -C <datei>.elf` kann diese überprüft werden. Mit einem ISP-Programmiergerät lässt sich auch das Flash aus dem µC auslesen und so die Bootloader-Version kontrollieren.
+
+## Quelltextanpassungen
+
+Diese Anpassung der Quelltext-Datei umfasst:
+* Microcontroller ATmega328P mit 32KiB Flash (davon die hinteren 4KiB für den Bootloader), 2KiB SRAM und 1KiB EEPROM
+* Frequenz 16MHz
+* Serielle Schnittstelle: **38400/8N1**
+* 1 LED (rot)
+* Assembler-Anweisungen durch Macros aus `avr/boot.h` ersetzt
+* Quelltextkorrekturen, damit der Bootloader auch bei einer Page-Size von 256 Byte funktioniert (für Atmega328P nicht erforderlich)
+
+
+## Übersetzung
+
+Folgende Tools sind erforderlich:
+* avr-gcc
+* avrdude
+
+Auf einem Linux-Debian System müssen daher folgende Pakete installiert sein:
+```sh
+sudo apt update
+sudo apt install gcc-avr avr-libc binutils-avr avrdude
+```
+
+Die Übersetzung erfolgt dann mit dem Kommando `make`.
+
+## Download auf den µC
+
+Die korrekte Programmierung der Fuses sowie der Download des Bootloaders in den Bootloader-Bereich des µC-Flash kann mit Hilfe eines [USBasp-Programmiergeräts](https://www.fischl.de/usbasp/) mit folgenden Kommandos erfolgen:
+
+```sh
+make isp-fuse
+make isp-flash
+```
+
+Nach der Programmierung sollte die rote LED in kleinen zeitlichen Abständen 4x blinken.
+
+Falls die *release-Version* programmiert werden soll, muss nach dem `make` die elf-Datei zuvor in den Ordner `dist` kopiert werden.
+
+```sh
+make
+cp  release/v2024-10-31_161247/bootloader-arduino_nano-m328p_16mhz-38400bps.elf dist/
+make isp-fuse
+make isp-flash
+```
+
+## Download von Programmen mit Hilfe des Bootloaders
+
+Sobald sich am µC ein Bootloader befindet ist kein Programmiergerät mehr erforderlich. Das Programm wird über die serielle UART-Schnittstelle (via USB-Schnittstelle) in den Flash gespeichert.
+
+UART-Schnittstelle (Option `-P`) und Name der ELF-Programmdatei (nach `flash:w:`) sind anzupassen...
+
+```sh
+avrdude -c arduino -p m328p -P /dev/ttyUSB0 -b 38400 -e -U flash:w:programm.elf
+```
+
+## Einbindung in die Arduino IDE
+
+Der Arduino Nano ist bereits in der Arduino IDE standardmäßig verfügbar.
+\ No newline at end of file
diff --git a/nano-328/protocol b/nano-328/protocol

new file mode 100644 (file)

index 0000000..8c0ea61
--- /dev/null
+++ b/nano-328/protocol
@@ -0,0 +1,323 @@
+  0.552750 -->   2: 3020
+  0.555474 <--   2: 1410
+  0.803623 -->   2: 3020
+  0.806825 <--   2: 1410
+  1.054395 -->   2: 3020
+  1.057282 <--   2: 1410
+
+  1.057514 -->   3: 4181 20
+  1.060837 <--   3: 1401 10
+  1.061061 -->   3: 4182 20
+  1.063819 <--   3: 1410 10
+  1.064049 -->  22: 4282 0000 0101 0101 03ff ffff ff01 0008  0000 0100 0020
+  1.068274 <--   2: 1410
+  1.068436 -->   7: 4505 08d7 a000 20
+  1.071346 <--   2: 1410
+  1.071432 -->   2: 5020
+  1.074021 <--   2: 1410
+  1.084349 -->   2: 7520
+  1.087176 <--   5: 141e 960a 10
+  1.087341 -->   6: 5650 0000 0020
+  1.090435 <--   3: 1400 10
+  1.090608 -->   6: 5650 0000 0020
+  1.093517 <--   3: 1400 10
+  1.093662 -->   6: 5650 0000 0020
+  1.096678 <--   3: 1400 10
+  1.096838 -->   6: 5658 0800 0020
+  1.099974 <--   3: 1400 10
+  1.100216 -->   6: 5658 0800 0020
+  1.103433 <--   3: 1400 10
+  1.103621 -->   6: 5658 0800 0020
+  1.106596 <--   3: 1400 10
+  1.106798 -->   6: 5650 0800 0020
+  1.109878 <--   3: 1400 10
+  1.110108 -->   6: 5650 0800 0020
+  1.113015 <--   3: 1400 10
+  1.113141 -->   6: 5650 0800 0020
+  1.116120 <--   3: 1400 10
+  1.116256 -->   6: 56ac 8000 0020
+  1.119179 <--   3: 1400 10
+  1.174951 -->   3: 4181 20
+  1.177570 <--   3: 1401 10
+  1.177770 -->   3: 4182 20
+  1.180450 <--   3: 1410 10
+  1.180666 -->  22: 4282 0000 0101 0101 03ff ffff ff01 0008  0000 0100 0020
+  1.184868 <--   2: 1410
+  1.185056 -->   7: 4505 08d7 a000 20
+  1.187956 <--   2: 1410
+  1.188059 -->   2: 5020
+  1.190517 <--   2: 1410
+  
+  1.191326 -->   4: 5500 0020
+  1.193964 <--   2: 1410
+  
+  1.194133 -->  32: 6401 0046 0c94 3e00 0c94 5b00 0c94 5b00  0c94 5b00 0c94 5b00 0c94 5b00 0c94 5b00
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+  1.208326 -->   5: 0f92 0fb6 20
+  1.255493 <--   2: 1410
+  
+  1.255743 -->   4: 5580 0020
+  1.258608 <--   2: 1410
+  
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+  1.272904 -->   5: 86e0 91e0 20
+  1.320139 <--   2: 1410
+  
+  1.320378 -->   4: 5500 0120
+  1.323002 <--   2: 1410
+  
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+  1.384623 <--   2: 1410
+  
+  1.384878 -->   4: 5580 0120
+  1.387608 <--   2: 1410
+  
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+  1.401922 -->   5: b180 36fe 20
+  1.448945 <--   2: 1410
+  
+  1.449212 -->   4: 5500 0220
+  1.451904 <--   2: 1410
+  
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+  1.513447 <--   2: 1410
+  
+  1.513715 -->   4: 5580 0220
+  1.516432 <--   2: 1410
+  
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+  1.530784 -->   5: 8de2 b601 20
+  1.577915 <--   2: 1410
+  
+  1.578186 -->   4: 5500 0320
+  1.580952 <--   2: 1410
+  
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+  1.581358 -->  32: 4103 2a94 f6cf f601 8681 9781 02c0 8fef  9fef 2b96 e2e1 0c94 f703 fc01 0590 6150
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+  1.584265 -->  32: 8e0f 9f1f 0895 0f93 1f93 cf93 df93 fb01  2381 21fd 03c0 8fef 9fef 2cc0 22ff 16c0
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+  1.595249 -->   5: aa27 2830 20
+  1.642464 <--   2: 1410
+  
+  1.642718 -->   4: 5580 0320
+  1.645473 <--   2: 1410
+  
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+  1.645701 -->  32: 3cd0 670f 781f 891f 9a1f a11d 680f 791f  8a1f 911d a11d 6a0f 711d 811d 911d a11d
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+  1.645887 -->  32: 4193 b3e0 0fd0 c9f7 f6cf 462f 4f70 405d  4a33 18f0 495d 31fd 4052 4193 02d0 a9f7
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+  1.706941 <--   2: 1410
+  
+  1.707172 -->   4: 5500 0420
+  1.709845 <--   2: 1410
+  
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+  1.715997 -->  32: ffff ffff ffff ffff ffff ffff ffff ffff  ffff ffff ffff ffff ffff ffff ffff ffff
+  1.718639 -->  32: ffff ffff ffff ffff ffff ffff ffff ffff  ffff ffff ffff ffff ffff ffff ffff ffff
+  1.721439 -->  32: ffff ffff ffff ffff ffff ffff ffff ffff  ffff ffff ffff ffff ffff ffff ffff ffff
+  1.724135 -->   5: ffff ffff 20
+  1.771467 <--   2: 1410
+  
+  1.772647 -->   4: 5500 0020
+  1.775440 <--   2: 1410
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+  1.775659 -->   5: 7401 0046 20
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+  1.831444 <--   2: 1410
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+  1.856623 <--   2: f010
+  
+  1.856748 -->   4: 5580 0120
+  1.859363 <--   2: 1410
+  
+  1.859447 -->   5: 7401 0046 20
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+  1.887255 <--   2: 1410
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+  1.969047 <--   2: 3010
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+  2.000367 -->   5: 7401 0046 20
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+  2.012149 <--  32: 6c6f 2077 6f72 6c64 2573 2020 2531 3273  0d00 00ff ffff ffff ffff ffff ffff ffff
+  2.014971 <--  32: ffff ffff ffff ffff ffff ffff ffff ffff  ffff ffff ffff ffff ffff ffff ffff ffff
+  2.017659 <--  32: ffff ffff ffff ffff ffff ffff ffff ffff  ffff ffff ffff ffff ffff ffff ffff ffff
+  2.020387 <--  32: ffff ffff ffff ffff ffff ffff ffff ffff  ffff ffff ffff ffff ffff ffff ffff ffff
+  2.023167 <--  32: ffff ffff ffff ffff ffff ffff ffff ffff  ffff ffff ffff ffff ffff ffff ffff ffff
+  2.025368 <--   2: ff10
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+  2.025949 -->   6: 5650 0000 0020
+  2.028775 <--   3: 1400 10
+  2.028918 -->   6: 5650 0000 0020
+  2.031848 <--   3: 1400 10
+  2.031977 -->   6: 5650 0000 0020
+  2.034973 <--   3: 1400 10
+  2.035141 -->   6: 5658 0800 0020
+  2.038215 <--   3: 1400 10
+  2.038413 -->   6: 5658 0800 0020
+  2.041454 <--   3: 1400 10
+  2.041646 -->   6: 5658 0800 0020
+  2.044533 <--   3: 1400 10
+  2.044682 -->   6: 5650 0800 0020
+  2.047749 <--   3: 1400 10
+  2.047987 -->   6: 5650 0800 0020
+  2.050921 <--   3: 1400 10
+  2.051154 -->   6: 5650 0800 0020
+  2.054178 <--   3: 1400 10
+
+  2.054415 -->   2: 5120
+  2.056864 <--   2: 1410
diff --git a/nano-328/release/v2024-10-31_161247/bootloader-arduino_nano-m328p_16mhz-38400bps.bin b/nano-328/release/v2024-10-31_161247/bootloader-arduino_nano-m328p_16mhz-38400bps.bin

new file mode 100755 (executable)

index 0000000..066bcde
--- /dev/null
+++ b/nano-328/release/v2024-10-31_161247/bootloader-arduino_nano-m328p_16mhz-38400bps.bin
@@ -0,0 +1,5 @@
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+:00000001FF\r
diff --git a/nano-328/src b/nano-328/src

new file mode 120000 (symlink)

index 0000000..5cd551c
--- /dev/null
+++ b/nano-328/src
@@ -0,0 +1 @@
+../src
+\ No newline at end of file
diff --git a/nano-644/.gdb_history b/nano-644/.gdb_history

new file mode 100644 (file)

index 0000000..3339046
--- /dev/null
+++ b/nano-644/.gdb_history
@@ -0,0 +1,9 @@
+target remote :1234
+layout split
+stepi
+quit
+target remote :1234
+layout split
+stepi
+b *main+9
+quit
diff --git a/nano-644/.gdbinit b/nano-644/.gdbinit

new file mode 100644 (file)

index 0000000..a8c4b59
--- /dev/null
+++ b/nano-644/.gdbinit
@@ -0,0 +1,5 @@
+set history save on
+set history size 1000
+set history remove-duplicates 2
+set history filename .gdb_history
+
diff --git a/nano-644/.gitignore b/nano-644/.gitignore

new file mode 100644 (file)

index 0000000..a959910
--- /dev/null
+++ b/nano-644/.gitignore
@@ -0,0 +1,4 @@
+.depend
+**/build
+**/dist
+**/sim
diff --git a/nano-644/.vscode/c_cpp_properties.json b/nano-644/.vscode/c_cpp_properties.json

new file mode 100644 (file)

index 0000000..b3212bc
--- /dev/null
+++ b/nano-644/.vscode/c_cpp_properties.json
@@ -0,0 +1,26 @@
+{
+    "configurations": [
+        {
+            "name": "Linux AVR",
+            "includePath": [
+                "/usr/lib/avr/include/**",
+                "/usr/lib/gcc/avr/**"
+            ],
+            "defines": [],
+            "compilerPath": "/usr/bin/avr-gcc",
+            "compilerArgs": [
+                "-mmcu=atmega644p",
+                "-Os",
+                "-DF_CPU=12000000",
+                "-DBAUD_RATE=115200",
+                "-DDOUBLE_SPEED",
+                "-DNUM_LED_FLASHES=4",
+                "-DMAX_TIME_COUNT=F_CPU>>4"
+            ],
+            "cStandard": "gnu11",
+            "cppStandard": "gnu++11",
+            "intelliSenseMode": "linux-gcc-x64"
+        }
+    ],
+    "version": 4
+}
diff --git a/nano-644/.vscode/launch.json b/nano-644/.vscode/launch.json

new file mode 100644 (file)

index 0000000..f29cf2e
--- /dev/null
+++ b/nano-644/.vscode/launch.json
@@ -0,0 +1,37 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Build",
+            // "request": "launch",
+            "type": "node-terminal",
+            "preLaunchTask": "build"
+        },{
+            "name": "Flash",
+            // "request": "launch",
+            "type": "node-terminal",
+            "preLaunchTask": "flash"
+        },{
+            "name": "Clean",
+            // "request": "launch",
+            "type": "node-terminal",
+            "preLaunchTask": "clean"
+        },{
+            // es muss mit simuc --board arduino dist/programm.elf der Simulator 
+            // gestartet werden. Dessen gdb-stub öffnet auf localhost:1234 einen Port
+            "name": "Debug (simuc)",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "${workspaceFolder}/sim/atmega328p.elf",
+            "cwd": "${workspaceFolder}",
+            "externalConsole": false,
+            "MIMode": "gdb",
+            "miDebuggerPath": "/usr/bin/avr-gdb",
+            "miDebuggerServerAddress": ":1234",
+            "preLaunchTask": "build"
+        }
+    ]
+}
diff --git a/nano-644/.vscode/settings.json b/nano-644/.vscode/settings.json

new file mode 100644 (file)

index 0000000..114a717
--- /dev/null
+++ b/nano-644/.vscode/settings.json
@@ -0,0 +1,21 @@
+{
+    "[c]": {
+        "editor.insertSpaces": true,
+        "editor.tabSize": 3,
+        "editor.detectIndentation": false
+    },
+    "[h]": {
+        "editor.insertSpaces": true,
+        "editor.tabSize": 3,
+        "editor.detectIndentation": false
+    },
+    "cSpell.words": [],
+    "cSpell.ignorePaths": [
+        "**/*.json", "**/*.c", "**/*.h", "**/Makefile"
+    ],
+    "files.associations": {
+        "delay.h": "c",
+        "boot.h": "c",
+        "stdio.h": "c"
+    }
+}
diff --git a/nano-644/.vscode/tasks.json b/nano-644/.vscode/tasks.json

new file mode 100644 (file)

index 0000000..74fb1c7
--- /dev/null
+++ b/nano-644/.vscode/tasks.json
@@ -0,0 +1,23 @@
+{
+    // See https://go.microsoft.com/fwlink/?LinkId=733558
+    // for the documentation about the tasks.json format
+    "version": "2.0.0",
+    "tasks": [{
+        "label": "build",
+        "type": "shell",
+        "command": "make",
+        "problemMatcher":[
+            "$gcc"
+        ]
+    },{
+        "label": "clean",
+        "type": "shell",
+        "command": "make",
+        "args": [ "clean" ],
+    },{
+        "label": "flash",
+        "type": "shell",
+        "command": "make",
+        "args": [ "flash" ],
+    }]
+}
+\ No newline at end of file
diff --git a/nano-644/Makefile b/nano-644/Makefile

new file mode 100644 (file)

index 0000000..bd195c8
--- /dev/null
+++ b/nano-644/Makefile
@@ -0,0 +1,267 @@
+$(shell mkdir -p dist >/dev/null)
+$(shell mkdir -p build >/dev/null)
+$(shell mkdir -p sim >/dev/null)
+$(shell mkdir -p sim/build >/dev/null)
+$(shell mkdir -p release/sim >/dev/null)
+
+# --------------------------------------------------------------------------------
+# Variables configured by engineer
+
+NAME=bootloader-arduino_nano-m644p_12mhz-115200bps
+DEVICE=atmega644p
+AVRDUDE_DEVICE=m644p
+CPU_FREQUENCY=12000000
+BAUDRATE=115200
+START_ADDRESS=0xe000
+FLASH_SIZE=0x10000
+
+# --------------------------------------------------------------------------------
+# Automatic created Makefile variables
+
+SRC= $(wildcard src/*.c src/*.cpp src/*/*.c src/*/*.cpp)
+HDR= $(wildcard src/*.h src/*.hpp src/*/*.h src/*/*.hpp)
+MAINSRC= $(wildcard src/main.c src/main.cpp)
+OBJ_CPP = $(SRC:src/%.cpp=build/%.o)
+OBJ = $(OBJ_CPP:src/%.c=build/%.o)
+OBJ_SIM_CPP = $(SRC:src/%.cpp=sim/build/%.o)
+OBJ_SIM = $(OBJ_SIM_CPP:src/%.c=sim/build/%.o)
+
+CC= avr-g++
+CFLAGS= -Wall -mmcu=$(DEVICE) -Os -DF_CPU=$(CPU_FREQUENCY)  -DBAUD_RATE=$(BAUDRATE) -DDOUBLE_SPEED -DNUM_LED_FLASHES=4 '-DMAX_TIME_COUNT=F_CPU>>4' -c
+#LFLAGS= -Wall -mmcu=$(DEVICE) -Os -DF_CPU=$(CPU_FREQUENCY) -Wl,-u,vfprintf -lprintf_flt -lm
+LFLAGS= -Wall -mmcu=$(DEVICE) -Os -DF_CPU=$(CPU_FREQUENCY) -Wl,--section-start=.text=$(START_ADDRESS)
+
+CFLAGS_SIM= -Wall -mmcu=$(DEVICE) -Og -DF_CPU=$(CPU_FREQUENCY) -g  -DBAUD_RATE=$(BAUDRATE) -DDOUBLE_SPEED -DNUM_LED_FLASHES=4 '-DMAX_TIME_COUNT=F_CPU>>4' -c
+#LFLAGS_SIM= -Wall -mmcu=$(DEVICE) -Og -DF_CPU=$(CPU_FREQUENCY) -g -Wl,-u,vfprintf -lprintf_flt -lm
+LFLAGS_SIM= -Wall -mmcu=$(DEVICE) -Og -DF_CPU=$(CPU_FREQUENCY) -g -Wl,--section-start=.text=$(START_ADDRESS)
+
+# --------------------------------------------------------------------------------
+# make targets
+
+.PHONY: all
+all: dist/$(NAME).elf dist/$(NAME).s sim/$(NAME).elf dist/$(NAME).hex dist/$(NAME).bin sim/$(NAME).s info
+
+.PHONY: info
+info:
+       @echo
+       @avr-size --mcu=$(DEVICE) --format=avr dist/$(NAME).elf
+
+# --------------------------------------------------------------------------------
+# dependency make for hierarchical source file structure
+
+.depend: $(SRC) $(HDR)
+       $(CC) -mmcu=$(DEVICE) -MM $(SRC) | sed --regexp-extended 's/^(.*\.o)\: src\/(.*)(\.cpp|\.c) (.*)/build\/\2\.o\: src\/\2\3 \4/g' > .depend
+
+ifneq (clean,$(filter clean,$(MAKECMDGOALS)))
+-include .depend
+endif
+
+# --------------------------------------------------------------------------------
+# elf, hex and assembler file creation
+
+dist/$(NAME).elf: .depend $(OBJ)
+       $(CC) $(LFLAGS) -o $@ $(OBJ)
+
+dist/%.s: dist/%.elf
+       avr-objdump -d $< > $@
+
+dist/%.hex: dist/%.elf
+       avr-objcopy -O ihex $< $@
+
+dist/%.bin: dist/%.elf
+       avr-objcopy -O binary $< $@
+       @head -c $(shell printf "%d\n" $(START_ADDRESS)) /dev/zero | LC_ALL=C tr "\000" "\377" > /tmp/.m328_flash1.bin
+       @cat /tmp/.m328_flash1.bin $@ /tmp/.m328_flash1.bin > /tmp/.m328_flash2.bin
+       @dd if=/tmp/.m328_flash2.bin of=$@ bs=1 count=$(shell printf "%d\n" $(FLASH_SIZE)) 2>/dev/null
+       @rm /tmp/.m328_flash?.bin
+
+# --------------------------------------------------------------------------------
+# check if the macros __DATE__ or __TIME__ are used in src/main.cpp or src/main.c
+ 
+DATE_USED=
+ifneq ($(shell cat $(MAINSRC) | grep __DATE__),)
+       DATE_USED=true
+endif   
+TIME_USED=
+ifneq ($(shell cat $(MAINSRC) | grep __TIME__),)
+       TIME_USED=true
+endif   
+ 
+ifeq (true, $(filter true, $(DATE_USED) $(TIME_USED)))
+build/main.o: $(MAIN_SRC) $(SRC) $(HDR)
+       @mkdir -p $(dir $@)
+       $(CC) $(CFLAGS) -o $@ $<
+endif
+ 
+# --------------------------------------------------------------------------------
+
+build/%.o: src/%.c
+       @mkdir -p $(dir $@)
+       $(CC) $(CFLAGS) -o $@ $<
+
+build/%.o: src/%.cpp
+       @mkdir -p $(dir $@)
+       $(CC) $(CFLAGS) -o $@ $<
+
+# --------------------------------------------------------------------------------
+# simulation/debugging with gdb or simuc
+
+sim/$(NAME).elf: .depend $(OBJ_SIM)
+       $(CC) $(LFLAGS_SIM) -o $@ $(OBJ_SIM)
+       @ln -sf $(NAME).elf sim/$(DEVICE).elf
+
+sim/build/%.o: src/%.c
+       @mkdir -p $(dir $@)
+       $(CC) $(CFLAGS_SIM) -o $@ $<
+
+sim/build/%.o: src/%.cpp
+       @mkdir -p $(dir $@)
+       $(CC) $(CFLAGS_SIM) -o $@ $<
+
+sim/%.s: sim/%.elf
+       avr-objdump -d $< > $@
+
+ifeq (m16, $(AVRDUDE_DEVICE))
+simuc: sim/$(NAME).elf
+       simuc --board sure $<
+endif
+
+ifeq (m328p, $(AVRDUDE_DEVICE))
+simuc: sim/$(NAME).elf
+       simuc --board arduino $<
+endif
+
+ifeq (m644p, $(AVRDUDE_DEVICE))
+simuc: sim/$(NAME).elf
+       simuc --board nano-644 $<
+endif
+
+ifeq (m1284p, $(AVRDUDE_DEVICE))
+simuc: sim/$(NAME).elf
+       simuc --board nano-1284 $<
+endif
+
+gdb: sim/$(NAME).elf
+       avr-gdb $<
+
+# -------------------------------------------------------------
+# flash to target with arduino bootloader in bootloader-section
+
+.PHONY: flash
+flash: dist/$(NAME).elf all
+       avrdude -c arduino -P /dev/ttyUSB0 -b $(BAUDRATE) -p $(AVRDUDE_DEVICE) -e -U flash:w:$<
+
+.PHONY: flash0
+flash0: dist/$(NAME).elf all
+       avrdude -c arduino -P /dev/ttyUSB0 -b $(BAUDRATE)  -p $(AVRDUDE_DEVICE) -e -U flash:w:$<
+
+.PHONY: flash1
+flash1: dist/$(NAME).elf all
+       avrdude -c arduino -P /dev/ttyUSB1 -b $(BAUDRATE)  -p $(AVRDUDE_DEVICE) -e -U flash:w:$<
+
+.PHONY: flash2
+flash2: dist/$(NAME).elf all
+       avrdude -c arduino -P /dev/ttyUSB2 -b $(BAUDRATE)  -p $(AVRDUDE_DEVICE) -e -U flash:w:$<
+
+.PHONY: flash-read
+flash-read:
+       avrdude -c arduino -P /dev/ttyUSB0 -b $(BAUDRATE) -p $(AVRDUDE_DEVICE) -U flash:r:/tmp/flash.bin
+
+.PHONY: flash-disassemble
+flash-disassemble: flash-read
+       avr-objdump -b binary -D -m avr5 /tmp/flash.bin > /tmp/flash.s
+       less /tmp/flash.s
+
+.PHONY: flash-hexdump
+flash-hexdump: flash-read
+       hexdump -C /tmp/flash.bin | less
+
+# ----------------------------------------------
+# flash to target with fischl programming device
+
+.PHONY: isp-flash-$(AVRDUDE_DEVICE)
+isp-$(AVRDUDE_DEVICE):
+       avrdude -c usbasp -p $(AVRDUDE_DEVICE) -U lock:r:-:h
+       avrdude -c usbasp -p $(AVRDUDE_DEVICE)
+
+.PHONY: isp-flash
+isp-flash: dist/$(NAME).elf all
+       avrdude -c usbasp -p $(AVRDUDE_DEVICE) -e -U flash:w:$<
+
+.PHONY: isp-flash-$(AVRDUDE_DEVICE)
+isp-flash-$(AVRDUDE_DEVICE): dist/$(NAME).elf all
+       avrdude -c usbasp -p $(AVRDUDE_DEVICE) -e -U flash:w:$<
+
+.PHONY: isp-read-flash-$(AVRDUDE_DEVICE)
+isp-read-flash-$(AVRDUDE_DEVICE):
+       avrdude -c usbasp -p m32$(AVRDUDE_DEVICE)8p -U flash:r:/tmp/flash-arduino-atmega328p__$(shell date +"%Y-%m-%d_%H%M%S")
+
+.PHONY: isp-fuse
+isp-fuse: isp-fuse-$(AVRDUDE_DEVICE)
+
+.PHONY: isp-fuse-$(AVRDUDE_DEVICE)
+ifeq (m16, $(AVRDUDE_DEVICE))
+isp-fuse-$(AVRDUDE_DEVICE):
+       avrdude -c usbasp -p $(AVRDUDE_DEVICE) -U lfuse:w:0x18:m -U hfuse:w:0xD8:m -U lock:w:0xEF:m
+endif
+ifeq (m328p, $(AVRDUDE_DEVICE))
+isp-fuse-$(AVRDUDE_DEVICE):
+       avrdude -c usbasp -p $(AVRDUDE_DEVICE) -U lfuse:w:0xEF:m -U hfuse:w:0xD8:m -U efuse:w:0xFD:m -U lock:w:0xEF:m
+endif
+ifeq (m644p, $(AVRDUDE_DEVICE))
+isp-fuse-$(AVRDUDE_DEVICE):
+       avrdude -c usbasp -p $(AVRDUDE_DEVICE) -U lfuse:w:0xEF:m -U hfuse:w:0xD8:m -U efuse:w:0xFD:m -U lock:w:0xEF:m
+endif
+ifeq (m1284p, $(AVRDUDE_DEVICE))
+isp-fuse-$(AVRDUDE_DEVICE):
+       avrdude -c usbasp -p $(AVRDUDE_DEVICE) -U lfuse:w:0xEF:m -U hfuse:w:0xD8:m -U efuse:w:0xFD:m -U lock:w:0xEF:m
+endif
+
+# --------------------------------------------------------
+# picocom sends CR for ENTER -> convert cr (\r) to lf (\n)
+
+.PHONY: picocom
+picocom:
+       picocom -b $(BAUDRATE) --omap crlf --raise-dtr /dev/ttyUSB0
+
+.PHONY: picocom0
+picocom0:
+       picocom -b $(BAUDRATE) --omap crlf --raise-dtr /dev/ttyUSB0
+
+.PHONY: picocom1
+picocom1:
+       picocom -b $(BAUDRATE) --omap crlf --raise-dtr /dev/ttyUSB1
+
+.PHONY: picocom2
+picocom2:
+       picocom -b $(BAUDRATE) --omap crlf --raise-dtr /dev/ttyUSB2
+
+# --------------------------------------------------------
+
+.PHONY: help
+help:
+       @echo
+       @echo "Possible targets are:"
+       @echo "   clean"
+       @echo "   all help info"
+       @echo "   flash flash0 flash1 flash2 flash-read flash-disassemble flash-hexdump"
+       @echo "   isp-$(AVRDUDE_DEVICE) isp-flash-$(AVRDUDE_DEVICE) isp-fuse-$(AVRDUDE_DEVICE)"
+       @echo "   picocom picocom0 picocom1 picocom2"
+       @echo "   gdb simuc"
+       @echo
+
+# --------------------------------------------------------
+
+.PHONY: release
+release: dist/$(NAME).elf sim/$(NAME).elf dist/$(NAME).hex dist/$(NAME).bin
+       ../create-release release $(word 1, $^) release/sim $(word 2, $^)
+
+# --------------------------------------------------------
+
+.PHONY: clean
+clean:
+       @rm -r dist
+       @rm -r build
+       @rm -r sim
+       @find . -type f -name ".depend" -exec rm {} \;
+       @echo "clean done"
diff --git a/nano-644/README.md b/nano-644/README.md

new file mode 100644 (file)

index 0000000..90dd4d6
--- /dev/null
+++ b/nano-644/README.md
@@ -0,0 +1,126 @@
+# Arduino-Bootloader (STK500) für Nano-644 (ATmega644P, 12MHz, 3.3V)
+
+Dieser Bootloader ermöglicht die Programmierung über das "Arduino-System". Als Kommunikationsprotokoll kommt das [STK500 Protokoll]( https://www.microchip.com/content/dam/mchp/documents/OTH/ApplicationNotes/ApplicationNotes/doc2525.pdf) zur Anwendung (Kommunikationsablauf siehe Datei [protocol](protocol)).
+
+Beim Bootloader in [src/main.c](src/main.c) handelt es sich um eine Anpassung von [https://github.com/arduino/ArduinoCore-avr/blob/master/bootloaders/atmega/ATmegaBOOT_168.c](https://github.com/arduino/ArduinoCore-avr/blob/master/bootloaders/atmega/ATmegaBOOT_168.c) an die Hardware des Nano-644 Boards.
+
+## Programmdateien
+
+Der Bootloader kann entweder aus der Quelltextdatei selbst erzeugt werden (siehe [Übersetzung](#%C3%BCbersetzung)), oder es wird eine der bereits fertigen Dateien im Ordner [release](release) (im Ordner des Boards) verwendet:
+
+* [release/v2024-10-31_161247/bootloader-arduino_nano-m644p_12mhz-115200bps.elf](release/v2024-10-31_161247/bootloader-arduino_nano-m644p_12mhz-115200bps.elf)
+* [release/v2024-10-31_161247/bootloader-arduino_nano-m644p_12mhz-115200bps.hex](release/v2024-10-31_161247/bootloader-arduino_nano-m644p_12mhz-115200bps.hex)
+
+Versions Datum und Zeit sind im Flash und somit in der ELF-Datei zu finden. Durch `hexdump -C <datei>.elf` kann diese überprüft werden. Mit einem ISP-Programmiergerät lässt sich auch das Flash aus dem µC auslesen und so die Bootloader-Version kontrollieren.
+
+## Quelltextanpassungen
+
+Die Anpassung der Quelltext-Datei umfasst:
+* Microcontroller Atmega644P mit 64KiB Flash (davon die hinteren 8KiB für den Bootloader), 4KiB SRAM und 2KiB EEPROM
+* Frequenz 12MHz
+* Serielle Schnittstelle: **115200/8N1**
+* 3 LEDs (rot, gelb, grün)
+* Assembler-Anweisungen durch Macros aus `avr/boot.h` ersetzt
+* Quelltextkorrekturen, damit der Bootloader auch bei einer Page-Size von 256 Byte funktioniert
+
+## Übersetzung
+
+Folgende Tools sind erforderlich:
+* avr-gcc
+* avrdude
+
+Auf einem Linux-Debian System müssen daher folgende Pakete installiert sein:
+```sh
+sudo apt update
+sudo apt install gcc-avr avr-libc binutils-avr avrdude
+```
+
+Die Übersetzung erfolgt dann mit dem Kommando `make`.
+
+## Download auf den µC
+
+Die korrekte Programmierung der Fuses sowie der Download des Bootloaders in den Bootloader-Bereich des µC-Flash kann mit Hilfe eines [USBasp-Programmiergeräts](https://www.fischl.de/usbasp/) mit folgenden Kommandos erfolgen:
+
+```sh
+make isp-fuse
+make isp-flash
+```
+
+Nach der Programmierung sollten die drei LEDs den Start des Bootloader anzeigen (rot -> rot+orange -> grün -> grün blinken).
+
+Falls die *release-Version* programmiert werden soll, muss nach dem `make` die elf-Datei zuvor in den Ordner `dist` kopiert werden.
+
+```sh
+make
+cp  release/v2024-10-31_161247/bootloader-arduino_nano-m644p_12mhz-115200bps.elf dist/
+make isp-fuse
+make isp-flash
+```
+
+
+## Download von Programmen mit Hilfe des Bootloaders
+
+Sobald sich am µC ein Bootloader befindet ist kein Programmiergerät mehr erforderlich. Das Programm wird über die serielle UART-Schnittstelle (via USB-Schnittstelle) in den Flash gespeichert.
+
+UART-Schnittstelle (Option `-P`) und Name der ELF-Programmdatei (nach `flash:w:`) sind anzupassen...
+
+```sh
+avrdude -c arduino -p m644p -P /dev/ttyUSB0 -b 115200 -e -U flash:w:programm.elf
+```
+
+## Einbindung in die Arduino IDE
+
+Zunächst den Ordner mit der Arduino Installation finden. Unter Linux ist das der Pfad:
+```
+/usr/share/arduino/hardware/arduino/avr
+```
+
+Dort im Unterordner `bootloaders` einen Ordner `atmeg644` anlegen und darin die Intel-Hex Datei des Bootloaders ablegen.
+
+```sh
+make
+sudo mkdir /usr/share/arduino/hardware/arduino/avr/bootloaders/atmega644
+cp dist/bootloader-arduino_nano-m644p_12mhz-115200bps.hex /usr/share/arduino/hardware/arduino/avr/bootloaders/atmega644/
+```
+
+Danach in der Datei `/usr/share/arduino/hardware/arduino/avr/boards.txt` folgende Einträge ergänzen:
+```
+#########################################################
+
+nano644.name=Nano-644
+
+nano644.vid.0=0x1a86
+nano644.pid.0=0x7522
+nano644.upload_port.0.vid=0x1a86
+nano644.upload_port.0.pid=0x7522
+
+nano644.upload.tool=avrdude
+nano644.upload.tool.default=avrdude
+nano644.upload.tool.network=arduino_ota
+nano644.upload.protocol=arduino
+nano644.upload.maximum_size=57344
+nano644.upload.maximum_data_size=4096
+nano644.upload.speed=115200
+
+nano644.bootloader.tool=avrdude
+nano644.bootloader.tool.default=avrdude
+nano644.bootloader.low_fuses=0xEF
+nano644.bootloader.high_fuses=0xD8
+nano644.bootloader.extended_fuses=0xFD
+nano644.bootloader.unlock_bits=0x3F
+nano644.bootloader.lock_bits=0xEF
+nano644.bootloader.file=atmega644/bootloader-arduino_nano-m644p_12mhz-115200bps.hex
+
+nano644.build.mcu=atmega644p
+nano644.build.f_cpu=12000000L
+nano644.build.board=AVR_NANO644
+nano644.build.core=arduino
+nano644.build.variant=standard
+
+##############################################################
+```
+
+Nach dem Start der Arduino-IDE kann:
+* über das Menü *Werkzeuge->Board* das ***Nano-644*** gewählt werden
+* über das Menü *Werkzeuge->Programmer* der ***ArduinoISP*** gewählt werden
+
diff --git a/nano-644/release/v2024-10-31_161247/bootloader-arduino_nano-m644p_12mhz-115200bps.bin b/nano-644/release/v2024-10-31_161247/bootloader-arduino_nano-m644p_12mhz-115200bps.bin

new file mode 100755 (executable)

index 0000000..2dd2ac0
--- /dev/null
+++ b/nano-644/release/v2024-10-31_161247/bootloader-arduino_nano-m644p_12mhz-115200bps.bin
@@ -0,0 +1,19 @@
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ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ
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diff --git a/nano-644/release/v2024-10-31_161247/bootloader-arduino_nano-m644p_12mhz-115200bps.elf b/nano-644/release/v2024-10-31_161247/bootloader-arduino_nano-m644p_12mhz-115200bps.elf

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new file mode 100644 (file)

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diff --git a/nano-644/src b/nano-644/src

new file mode 120000 (symlink)

index 0000000..5cd551c
--- /dev/null
+++ b/nano-644/src
@@ -0,0 +1 @@
+../src
+\ No newline at end of file
diff --git a/src/main.c b/src/main.c

new file mode 100644 (file)

index 0000000..7ac64a0
--- /dev/null
+++ b/src/main.c
@@ -0,0 +1,561 @@
+/*************************************************************************************************/
+/* Serial Bootloader for Atmel megaAVR Controllers                                               */
+/*                                                                                               */
+/* Source-code taken from:                                                                       */
+/*    https://github.com/arduino/ArduinoCore-avr/blob/master/bootloaders/atmega/ATmegaBOOT_168.c */
+/*    Branch@hash: master@321fca0b                                                               */
+/*                                                                                               */
+/* Licence can be viewed at http://www.fsf.org/licenses/gpl.txt                                  */
+/*                                                                                               */
+/*************************************************************************************************/
+
+#include <inttypes.h>
+
+#include <avr/boot.h>
+#include <avr/io.h>
+#include <avr/pgmspace.h>
+#include <avr/eeprom.h>
+#include <avr/interrupt.h>
+#include <avr/wdt.h>
+// #include <util/delay.h>
+
+// #define DEBUG_UART1
+#ifdef DEBUG_UART1
+   #include <stdio.h>
+#endif
+
+#define MAX_ERROR_COUNT 5
+
+#define HW_VER   0xF1
+#define SW_MAJOR 0x01
+#define SW_MINOR 0x10
+
+// onboard LED is used to indicate, that the bootloader was entered
+#ifdef __AVR_ATmega16__
+   #define SET_LED_RED (PORTA &= ~(1 << PA0))
+   #define CLR_LED_RED (PORTA |= (1 << PA0))
+   #define UDR0 UDR
+   #define UCSR0A UCSRA
+   #define RXC0 RXC
+   #define UDRE0 UDRE
+#endif
+#ifdef __AVR_ATmega328P__
+   #define SET_LED_RED (PORTB |= (1 << PB5))
+   #define CLR_LED_RED (PORTB &= ~(1 << PB5))
+#endif
+#if defined(__AVR_ATmega644P__)  || defined(__AVR_ATmega1284P__)
+   #define SET_LED_RED (PORTC |= (1 << PC2))
+   #define CLR_LED_RED (PORTC &= ~(1 << PC2))
+   #define SET_LED_ORANGE (PORTC |= (1 << PC3))
+   #define CLR_LED_ORANGE (PORTC &= ~(1 << PC3))
+   #define SET_LED_GREEN (PORTC |= (1 << PC4))
+   #define CLR_LED_GREEN (PORTC &= ~(1 << PC4))
+#endif
+
+// function prototypes
+void putch(char);
+char getch(void);
+void getNch(uint8_t);
+void byte_response(uint8_t);
+void nothing_response(void);
+char gethex(void);
+void puthex(char);
+void flash_led(uint8_t);
+
+volatile const char DATE [] PROGMEM = __DATE__;
+volatile const char TIME [] PROGMEM = __TIME__;
+
+#ifdef DEBUG_UART1
+   int uart_putchar(char c, FILE *stream) {
+      if (c == '\n') {
+         uart_putchar('\r', stream);
+      }
+      loop_until_bit_is_set(UCSR1A, UDRE1);
+      UDR1 = c;
+      return 0;
+   }
+
+   static FILE mystdout = FDEV_SETUP_STREAM(uart_putchar, NULL, _FDEV_SETUP_WRITE);
+#endif
+
+// some variables
+union address_union {
+       uint16_t word;
+       uint8_t  byte[2];
+} address;
+
+union length_union {
+       uint16_t word;
+       uint8_t  byte[2];
+} length;
+
+struct flags_struct {
+       unsigned eeprom : 1;
+       unsigned rampz  : 1;
+} flags;
+
+uint8_t buff[SPM_PAGESIZE + 1];
+// uint8_t address_high;
+// uint8_t pagesz=0x80;
+
+uint16_t i;
+uint8_t bootuart = 0;
+
+uint8_t error_count = 0;
+
+void (*app_start)(void) = 0x0000;
+
+int main () {
+       uint8_t ch, ch2;
+       uint16_t w;
+
+       #ifdef WATCHDOG_MODS
+               ch = MCUSR;
+               MCUSR = 0;
+
+               WDTCSR |= _BV(WDCE) | _BV(WDE);
+               WDTCSR = 0;
+
+               // Check if the WDT was used to reset, in which case we dont bootload and skip straight to the code. woot.
+               if (! (ch &  _BV(EXTRF))) // if its a not an external reset...
+         app_start();  // skip bootloader
+       #else
+               asm volatile("nop\n\t");
+       #endif
+
+       // LED ports output and off, ensure that Q1 (battery power) on (PC7)
+   #ifdef __AVR_ATmega328P__
+      PORTB = 0;
+      DDRB |= (1 << PB5);
+   #endif
+   #if defined(__AVR_ATmega644P__)  || defined(__AVR_ATmega1284P__)
+      PORTC = 0;
+      DDRC = (1 << PC7) | (1 << PC4) | (1 << PC3) |(1 << PC2);
+   #endif
+
+       #ifdef __AVR_ATmega16__
+      DDRA = 0x0f;
+      PORTA = 0x0f;
+      #ifdef DOUBLE_SPEED
+         UCSRA = (1 << U2X); // Double speed mode USART0
+         UBRRL = (uint8_t)(F_CPU / (BAUD_RATE *8L) - 1);
+         UBRRH = (F_CPU / (BAUD_RATE * 8L) - 1) >> 8;
+      #else
+         UBRRL = (uint8_t)(F_CPU / (BAUD_RATE * 16L) - 1);
+         UBRRH = (F_CPU / (BAUD_RATE*16L)-1) >> 8;
+      #endif
+      UCSRB = (1 << RXEN) | (1 << TXEN);
+      UCSRC = (1 << URSEL) | (1 << UCSZ0) | (1 << UCSZ1);
+   #else
+      #ifdef DOUBLE_SPEED
+         UCSR0A = (1 << U2X0); // Double speed mode USART0
+         UBRR0L = (uint8_t)(F_CPU / (BAUD_RATE *8L) - 1);
+         UBRR0H = (F_CPU / (BAUD_RATE * 8L) - 1) >> 8;
+         #ifdef DEBUG_UART1
+            UCSR1A = (1 << U2X1); // Double speed mode USART0
+            UBRR1L = (uint8_t)(F_CPU / (BAUD_RATE *8L) - 1);
+            UBRR1H = (F_CPU / (BAUD_RATE * 8L) - 1) >> 8;
+         #endif
+      #else
+         UBRR0L = (uint8_t)(F_CPU / (BAUD_RATE * 16L) - 1);
+         UBRR0H = (F_CPU / (BAUD_RATE*16L)-1) >> 8;
+         #ifdef DEBUG_UART1
+            UBRR1L = (uint8_t)(F_CPU / (BAUD_RATE * 16L) - 1);
+            UBRR1H = (F_CPU / (BAUD_RATE*16L)-1) >> 8;
+         #endif
+      #endif
+
+      UCSR0B = (1<<RXEN0) | (1<<TXEN0);
+      UCSR0C = (1<<UCSZ00) | (1<<UCSZ01);
+   #endif
+   #if defined(__AVR_ATmega644P__)  || defined(__AVR_ATmega1284P__)
+          UCSR1B = (1<<TXEN1);
+          UCSR1C = (1<<UCSZ00) | (1<<UCSZ01);
+      #ifdef DEBUG_UART1
+         stdout = &mystdout;
+         printf("\n\nArduino-Bootloader\n");
+      #endif
+   #endif
+       
+       // flash onboard LED to signal entering of bootloader */
+       flash_led(NUM_LED_FLASHES);
+
+       // forever loop
+       while (1) {
+
+               // get character from UART
+               ch = getch();
+
+               // A bunch of if...else if... gives smaller code than switch...case !
+
+               // Hello is anyone home ?
+               if(ch == '0') {
+                       nothing_response();
+
+               } else if (ch == '1') {
+                       // Request programmer ID
+                       // Not using PROGMEM string due to boot block in m128 being beyond 64kB boundary
+                       // Would need to selectively manipulate RAMPZ, and it's only 9 characters anyway so who cares.
+       
+                       if (getch() == ' ') {
+                               putch(0x14);
+                               putch('A');
+                               putch('V');
+                               putch('R');
+                               putch(' ');
+                               putch('I');
+                               putch('S');
+                               putch('P');
+                               putch(0x10);
+                       } else {
+                               if (++error_count == MAX_ERROR_COUNT) {
+               DDRC = 0; PORTC = 0;
+                                       app_start();
+                               }
+                       }
+
+               } else if (ch == '@') {
+                       // AVR ISP/STK500 board commands DON'T CARE so default nothing_response
+                       ch2 = getch();
+                       if (ch2 > 0x85) getch();
+                       nothing_response();
+
+               // *****************************
+               // AVR ISP/STK500 board requests
+               // *****************************
+
+               } else if (ch == 'A') { // 0x41
+                       ch2 = getch();
+                       if (ch2 == 0x80) {
+                               byte_response(HW_VER);     // Hardware version
+                       } else if (ch2 == 0x81) {
+                               byte_response(SW_MAJOR);   // Software major version
+                  } else if(ch2 == 0x82) {
+                               byte_response(SW_MINOR);   // Software minor version
+             } else if(ch2==0x98) {
+                               byte_response(0x03);       // Unknown but seems to be required by avr studio 3.56
+                       } else {
+                               byte_response(0x00);       // Covers various unnecessary responses we don't care about
+                       }
+
+               } else if (ch == 'B') { // B: 0x42
+                       // Device Parameters  DON'T CARE, DEVICE IS FIXED
+                       getNch(20);
+                       nothing_response();
+
+               
+               } else if (ch == 'E') { // E: 0x45
+                       // Parallel programming stuff  DON'T CARE
+                       getNch(5);
+                       nothing_response();
+
+               } else if (ch == 'P' || ch == 'R') { // P: 0x50, R: 0x52
+                       // P: Enter programming mode
+                  // R: Erase device, don't care as we will erase one page at a time anyway.
+                       nothing_response();
+
+               } else if (ch == 'Q') { // Q: 0x51
+                       // Leave programming mode
+                       nothing_response();
+                       #ifdef WATCHDOG_MODS
+                               // autoreset via watchdog (sneaky!)
+                               WDTCSR = _BV(WDE);
+                               while (1); // 16 ms
+                       #endif
+
+               } else if(ch == 'U') { // U: 0x55
+                       // Set address, little endian. EEPROM in bytes, FLASH in words
+                       // Perhaps extra address bytes may be added in future to support > 128kB FLASH.
+                       // This might explain why little endian was used here, big endian used everywhere else.
+                       address.byte[0] = getch();
+                       address.byte[1] = getch();
+                       nothing_response();
+
+
+               } else if (ch == 'V') { // V: 0x56
+                       // Universal SPI programming command, disabled.  Would be used for fuses and lock bits.
+                       if (getch() == 0x30) {
+                               getch();
+                               ch = getch();
+                               getch();
+                               if (ch == 0) {
+                                       byte_response(SIGNATURE_0);
+                               } else if (ch == 1) {
+                                       byte_response(SIGNATURE_1); 
+                               } else {
+                                       byte_response(SIGNATURE_2);
+                               } 
+                       } else {
+                               getNch(3);
+                               byte_response(0x00);
+                       }
+
+               } else if (ch == 'd') { // d: 0x64
+                       // Write memory, length is big endian and is in bytes
+                       length.byte[1] = getch();
+                       length.byte[0] = getch();
+                       flags.eeprom = 0;
+                       if (getch() == 'E') {
+                               flags.eeprom = 1;
+                       }
+                       for (w = 0; w < length.word; w++) {
+                               // Store data in buffer, can't keep up with serial data stream whilst programming pages
+                               buff[w] = getch(); 
+                       }
+                       if (getch() == ' ') {
+                               if (flags.eeprom) {
+                                       // Write to EEPROM one byte at a time
+                                       address.word <<= 1;
+                                       for(w = 0; w < length.word; w++) {
+                                               eeprom_busy_wait();
+                  eeprom_write_byte((uint8_t *)(uint16_t)address.word, buff[w]);
+                                               address.word++;
+                                       }                       
+                               } else {
+                                       // Write to FLASH one page at a time
+                                       #ifdef RAMPZ
+                  if (address.byte[1] > 127) {
+                     //Only possible with m128, m256 will need 3rd address byte. FIXME
+                     RAMPZ = 0x01;
+                  } else {
+                     RAMPZ = 0x00;
+                  }
+                  #endif
+
+                                       // address * 2 -> byte location
+                                       address.word = address.word << 1;               
+                                       if ((length.byte[0] & 0x01)) {
+                                               // Even up an odd number of bytes
+                                               length.word++;
+                                       }
+                                       cli();
+
+                                       uint16_t addr = address.word;
+                                       #ifdef DEBUG_UART1
+                  printf("Programming: address=0x%04x length=0x%04x\n", addr, length.word);
+                                          printf("  eeprom_busy_wait() ...");
+                                       #endif
+               eeprom_busy_wait();
+                                       boot_spm_busy_wait();
+                                       #ifdef DEBUG_UART1
+                                       printf("done\n");
+                  printf("  boot_page_erase(0x%04x)...", address.word);
+               #endif
+               SET_LED_RED;
+                                       boot_page_erase(addr);
+                                       boot_spm_busy_wait ();
+               CLR_LED_RED;
+                                       #ifdef DEBUG_UART1
+                                       printf("done\n");
+                                       printf("  boot_page_fill(0x%04x, ...): ", address.word);
+               #endif
+                                       for (i = 0; i < SPM_PAGESIZE; i += 2) {
+                                               uint16_t w = buff[i] + (buff[i + 1] << 8);
+                                       #ifdef DEBUG_UART1
+                     printf(".");
+                  #endif
+                                               boot_page_fill(addr + i, w);
+                                       }
+                                       #ifdef DEBUG_UART1
+                  printf("\n  boot_page_write(0x%04x)...", address.word);
+               #endif
+                                       boot_page_write(addr);
+                                       boot_spm_busy_wait();
+                                       #ifdef DEBUG_UART1
+                  printf("done\n");
+                                  printf("  boot_rww_enable()\n");
+               #endif
+                                       boot_rww_enable();
+                               }
+                               putch(0x14);
+                               putch(0x10);
+
+                       } else {
+                               if (++error_count == MAX_ERROR_COUNT)
+               DDRC = 0; PORTC = 0;
+                                       app_start();
+                       }               
+
+               } else if (ch == 't') { // t: 0x74
+                       // Read memory block mode, length is big endian.  */
+                       length.byte[1] = getch();
+                       length.byte[0] = getch();
+                       // if (address.word>0x7FFF) flags.rampz = 1; // No go with m256, FIXME
+                       // else flags.rampz = 0;
+                       address.word = address.word << 1; // address * 2 -> byte location
+                       if (getch() == 'E') {
+                               flags.eeprom = 1;
+                       } else {
+                               flags.eeprom = 0;
+                       }
+                       if (getch() == ' ') {                           
+                               // Command terminator
+                               putch(0x14);
+                               for (w = 0; w < length.word; w++) {
+                                       // Can handle odd and even lengths okay
+                                       if (flags.eeprom) {                             // Byte access EEPROM read
+                                               eeprom_busy_wait();
+                                               uint8_t b = eeprom_read_byte((uint8_t *)(uint16_t)address.word);
+                                               putch(b);
+                                               // putch(eeprom_read_byte((void *)address.word));
+                                               address.word++;
+                                       }
+                                       else {
+                  #ifdef RAMPZ
+                     if (!flags.rampz) {
+                        putch(pgm_read_byte_near(address.word));
+                     } else {
+                        putch(pgm_read_byte_far(address.word + 0x10000));
+                     }
+                  #else
+                     putch(pgm_read_byte_near(address.word));
+                  #endif
+                                               address.word++;
+                                       }
+                               }
+                       }
+                       putch(0x10);
+
+               } else if(ch == 'u') { // u: 0x75
+                       // Get device signature bytes
+                       if (getch() == ' ') {
+                               putch(0x14);
+                               putch(SIGNATURE_0);
+                               putch(SIGNATURE_1);
+                               putch(SIGNATURE_2);
+                               putch(0x10);
+                       } else {
+                               if (++error_count == MAX_ERROR_COUNT)
+               DDRC = 0; PORTC = 0;
+                                       app_start();
+                       }
+
+               } else if (ch == 'v') {
+                       // Read oscillator calibration byte
+                       byte_response(0x00);
+               }
+
+       }
+}
+
+char gethexnib () {
+       char a;
+       a = getch(); putch(a);
+       if (a >= 'a') {
+               return (a - 'a' + 0x0a);
+       } else if (a >= '0') {
+               return (a - '0');
+       }
+       return a;
+}
+
+
+char gethex () {
+       return (gethexnib() << 4) + gethexnib();
+}
+
+
+void puthex (char ch) {
+       char ah;
+
+       ah = ch >> 4;
+       if(ah >= 0x0a) {
+               ah = ah - 0x0a + 'a';
+       } else {
+               ah += '0';
+       }
+       
+       ch &= 0x0f;
+       if(ch >= 0x0a) {
+               ch = ch - 0x0a + 'a';
+       } else {
+               ch += '0';
+       }
+       
+       putch(ah);
+       putch(ch);
+}
+
+
+void putch (char ch) {
+
+       while (!(UCSR0A & _BV(UDRE0)));
+       UDR0 = ch;
+}
+
+
+char getch () {
+       uint32_t count = 0;
+       while( !(UCSR0A & _BV(RXC0)) ) {
+               count++;
+               if (count > MAX_TIME_COUNT) {
+         DDRC = 0; PORTC = 0;
+                       app_start();
+               }
+       }
+       return UDR0;
+}
+
+
+void getNch (uint8_t count) {
+       while(count--) {
+               getch();
+       }
+}
+
+
+void byte_response (uint8_t val) {
+       if (getch() == ' ') {
+               putch(0x14);
+               putch(val);
+               putch(0x10);
+       } else if (++error_count == MAX_ERROR_COUNT) {
+      DDRC = 0; PORTC = 0;
+       app_start();
+   }
+}
+
+void nothing_response () {
+       if (getch() == ' ') {
+               putch(0x14);
+               putch(0x10);
+       } else if (++error_count == MAX_ERROR_COUNT) {
+               DDRC = 0; PORTC = 0;
+               app_start();
+       }
+}
+
+void delay () {
+       // app. 200ms
+       for (volatile uint32_t timer = 0; timer < 0x12000; timer++) {
+               if (UCSR0A & _BV(RXC0)) {
+                       return;
+               }
+       }
+}
+
+void flash_led (uint8_t count) {
+   #if defined(__AVR_ATmega328P__) || defined(__AVR_ATmega16__)
+      while (count--) {
+         SET_LED_RED;
+         delay();
+         CLR_LED_RED;
+         delay();
+      }
+   #endif
+
+   #if defined(__AVR_ATmega644P__)  || defined(__AVR_ATmega1284P__)
+      SET_LED_RED;
+      delay();
+      SET_LED_ORANGE;
+      delay();
+      PORTC = 0;
+      
+      while (count--) {
+         SET_LED_GREEN;
+         delay();
+         CLR_LED_GREEN;
+         delay();
+      }
+   #endif
+}
diff --git a/sure-m16/.gdb_history b/sure-m16/.gdb_history

new file mode 100644 (file)

index 0000000..3339046
--- /dev/null
+++ b/sure-m16/.gdb_history
@@ -0,0 +1,9 @@
+target remote :1234
+layout split
+stepi
+quit
+target remote :1234
+layout split
+stepi
+b *main+9
+quit
diff --git a/sure-m16/.gdbinit b/sure-m16/.gdbinit

new file mode 100644 (file)

index 0000000..a8c4b59
--- /dev/null
+++ b/sure-m16/.gdbinit
@@ -0,0 +1,5 @@
+set history save on
+set history size 1000
+set history remove-duplicates 2
+set history filename .gdb_history
+
diff --git a/sure-m16/Makefile b/sure-m16/Makefile

new file mode 100644 (file)

index 0000000..4f0a1f8
--- /dev/null
+++ b/sure-m16/Makefile
@@ -0,0 +1,267 @@
+$(shell mkdir -p dist >/dev/null)
+$(shell mkdir -p build >/dev/null)
+$(shell mkdir -p sim >/dev/null)
+$(shell mkdir -p sim/build >/dev/null)
+$(shell mkdir -p release/sim >/dev/null)
+
+# --------------------------------------------------------------------------------
+# Variables configured by engineer
+
+NAME=bootloader-arduino_nano-m16_12mhz-115200bps
+DEVICE=atmega16
+AVRDUDE_DEVICE=m16
+CPU_FREQUENCY=12000000
+BAUDRATE=115200
+START_ADDRESS=0x3800
+FLASH_SIZE=0x4000
+
+# --------------------------------------------------------------------------------
+# Automatic created Makefile variables
+
+SRC= $(wildcard src/*.c src/*.cpp src/*/*.c src/*/*.cpp)
+HDR= $(wildcard src/*.h src/*.hpp src/*/*.h src/*/*.hpp)
+MAINSRC= $(wildcard src/main.c src/main.cpp)
+OBJ_CPP = $(SRC:src/%.cpp=build/%.o)
+OBJ = $(OBJ_CPP:src/%.c=build/%.o)
+OBJ_SIM_CPP = $(SRC:src/%.cpp=sim/build/%.o)
+OBJ_SIM = $(OBJ_SIM_CPP:src/%.c=sim/build/%.o)
+
+CC= avr-g++
+CFLAGS= -Wall -mmcu=$(DEVICE) -Os -DF_CPU=$(CPU_FREQUENCY)  -DBAUD_RATE=$(BAUDRATE) -DDOUBLE_SPEED -DNUM_LED_FLASHES=4 '-DMAX_TIME_COUNT=F_CPU>>4' -c
+#LFLAGS= -Wall -mmcu=$(DEVICE) -Os -DF_CPU=$(CPU_FREQUENCY) -Wl,-u,vfprintf -lprintf_flt -lm
+LFLAGS= -Wall -mmcu=$(DEVICE) -Os -DF_CPU=$(CPU_FREQUENCY) -Wl,--section-start=.text=$(START_ADDRESS)
+
+CFLAGS_SIM= -Wall -mmcu=$(DEVICE) -Og -DF_CPU=$(CPU_FREQUENCY) -g  -DBAUD_RATE=$(BAUDRATE) -DDOUBLE_SPEED -DNUM_LED_FLASHES=4 '-DMAX_TIME_COUNT=F_CPU>>4' -c
+#LFLAGS_SIM= -Wall -mmcu=$(DEVICE) -Og -DF_CPU=$(CPU_FREQUENCY) -g -Wl,-u,vfprintf -lprintf_flt -lm
+LFLAGS_SIM= -Wall -mmcu=$(DEVICE) -Og -DF_CPU=$(CPU_FREQUENCY) -g -Wl,--section-start=.text=$(START_ADDRESS)
+
+# --------------------------------------------------------------------------------
+# make targets
+
+.PHONY: all
+all: dist/$(NAME).elf dist/$(NAME).s sim/$(NAME).elf dist/$(NAME).hex dist/$(NAME).bin sim/$(NAME).s info
+
+.PHONY: info
+info:
+       @echo
+       @avr-size --mcu=$(DEVICE) --format=avr dist/$(NAME).elf
+
+# --------------------------------------------------------------------------------
+# dependency make for hierarchical source file structure
+
+.depend: $(SRC) $(HDR)
+       $(CC) -mmcu=$(DEVICE) -MM $(SRC) | sed --regexp-extended 's/^(.*\.o)\: src\/(.*)(\.cpp|\.c) (.*)/build\/\2\.o\: src\/\2\3 \4/g' > .depend
+
+ifneq (clean,$(filter clean,$(MAKECMDGOALS)))
+-include .depend
+endif
+
+# --------------------------------------------------------------------------------
+# elf, hex and assembler file creation
+
+dist/$(NAME).elf: .depend $(OBJ)
+       $(CC) $(LFLAGS) -o $@ $(OBJ)
+
+dist/%.s: dist/%.elf
+       avr-objdump -d $< > $@
+
+dist/%.hex: dist/%.elf
+       avr-objcopy -O ihex $< $@
+
+dist/%.bin: dist/%.elf
+       avr-objcopy -O binary $< $@
+       @head -c $(shell printf "%d\n" $(START_ADDRESS)) /dev/zero | LC_ALL=C tr "\000" "\377" > /tmp/.m328_flash1.bin
+       @cat /tmp/.m328_flash1.bin $@ /tmp/.m328_flash1.bin > /tmp/.m328_flash2.bin
+       @dd if=/tmp/.m328_flash2.bin of=$@ bs=1 count=$(shell printf "%d\n" $(FLASH_SIZE)) 2>/dev/null
+       @rm /tmp/.m328_flash?.bin
+
+# --------------------------------------------------------------------------------
+# check if the macros __DATE__ or __TIME__ are used in src/main.cpp or src/main.c
+ 
+DATE_USED=
+ifneq ($(shell cat $(MAINSRC) | grep __DATE__),)
+       DATE_USED=true
+endif   
+TIME_USED=
+ifneq ($(shell cat $(MAINSRC) | grep __TIME__),)
+       TIME_USED=true
+endif   
+ 
+ifeq (true, $(filter true, $(DATE_USED) $(TIME_USED)))
+build/main.o: $(MAIN_SRC) $(SRC) $(HDR)
+       @mkdir -p $(dir $@)
+       $(CC) $(CFLAGS) -o $@ $<
+endif
+ 
+# --------------------------------------------------------------------------------
+
+build/%.o: src/%.c
+       @mkdir -p $(dir $@)
+       $(CC) $(CFLAGS) -o $@ $<
+
+build/%.o: src/%.cpp
+       @mkdir -p $(dir $@)
+       $(CC) $(CFLAGS) -o $@ $<
+
+# --------------------------------------------------------------------------------
+# simulation/debugging with gdb or simuc
+
+sim/$(NAME).elf: .depend $(OBJ_SIM)
+       $(CC) $(LFLAGS_SIM) -o $@ $(OBJ_SIM)
+       @ln -sf $(NAME).elf sim/$(DEVICE).elf
+
+sim/build/%.o: src/%.c
+       @mkdir -p $(dir $@)
+       $(CC) $(CFLAGS_SIM) -o $@ $<
+
+sim/build/%.o: src/%.cpp
+       @mkdir -p $(dir $@)
+       $(CC) $(CFLAGS_SIM) -o $@ $<
+
+sim/%.s: sim/%.elf
+       avr-objdump -d $< > $@
+
+ifeq (m16, $(AVRDUDE_DEVICE))
+simuc: sim/$(NAME).elf
+       simuc --board sure $<
+endif
+
+ifeq (m328p, $(AVRDUDE_DEVICE))
+simuc: sim/$(NAME).elf
+       simuc --board arduino $<
+endif
+
+ifeq (m644p, $(AVRDUDE_DEVICE))
+simuc: sim/$(NAME).elf
+       simuc --board nano-644 $<
+endif
+
+ifeq (m1284p, $(AVRDUDE_DEVICE))
+simuc: sim/$(NAME).elf
+       simuc --board nano-1284 $<
+endif
+
+gdb: sim/$(NAME).elf
+       avr-gdb $<
+
+# -------------------------------------------------------------
+# flash to target with arduino bootloader in bootloader-section
+
+.PHONY: flash
+flash: dist/$(NAME).elf all
+       avrdude -c arduino -P /dev/ttyUSB0 -b $(BAUDRATE) -p $(AVRDUDE_DEVICE) -e -U flash:w:$<
+
+.PHONY: flash0
+flash0: dist/$(NAME).elf all
+       avrdude -c arduino -P /dev/ttyUSB0 -b $(BAUDRATE)  -p $(AVRDUDE_DEVICE) -e -U flash:w:$<
+
+.PHONY: flash1
+flash1: dist/$(NAME).elf all
+       avrdude -c arduino -P /dev/ttyUSB1 -b $(BAUDRATE)  -p $(AVRDUDE_DEVICE) -e -U flash:w:$<
+
+.PHONY: flash2
+flash2: dist/$(NAME).elf all
+       avrdude -c arduino -P /dev/ttyUSB2 -b $(BAUDRATE)  -p $(AVRDUDE_DEVICE) -e -U flash:w:$<
+
+.PHONY: flash-read
+flash-read:
+       avrdude -c arduino -P /dev/ttyUSB0 -b $(BAUDRATE) -p $(AVRDUDE_DEVICE) -U flash:r:/tmp/flash.bin
+
+.PHONY: flash-disassemble
+flash-disassemble: flash-read
+       avr-objdump -b binary -D -m avr5 /tmp/flash.bin > /tmp/flash.s
+       less /tmp/flash.s
+
+.PHONY: flash-hexdump
+flash-hexdump: flash-read
+       hexdump -C /tmp/flash.bin | less
+
+# ----------------------------------------------
+# flash to target with fischl programming device
+
+.PHONY: isp-flash-$(AVRDUDE_DEVICE)
+isp-$(AVRDUDE_DEVICE):
+       avrdude -c usbasp -p $(AVRDUDE_DEVICE) -U lock:r:-:h
+       avrdude -c usbasp -p $(AVRDUDE_DEVICE)
+
+.PHONY: isp-flash
+isp-flash: dist/$(NAME).elf all
+       avrdude -c usbasp -p $(AVRDUDE_DEVICE) -e -U flash:w:$<
+
+.PHONY: isp-flash-$(AVRDUDE_DEVICE)
+isp-flash-$(AVRDUDE_DEVICE): dist/$(NAME).elf all
+       avrdude -c usbasp -p $(AVRDUDE_DEVICE) -e -U flash:w:$<
+
+.PHONY: isp-read-flash-$(AVRDUDE_DEVICE)
+isp-read-flash-$(AVRDUDE_DEVICE):
+       avrdude -c usbasp -p m32$(AVRDUDE_DEVICE)8p -U flash:r:/tmp/flash-arduino-atmega328p__$(shell date +"%Y-%m-%d_%H%M%S")
+
+.PHONY: isp-fuse
+isp-fuse: isp-fuse-$(AVRDUDE_DEVICE)
+
+.PHONY: isp-fuse-$(AVRDUDE_DEVICE)
+ifeq (m16, $(AVRDUDE_DEVICE))
+isp-fuse-$(AVRDUDE_DEVICE):
+       avrdude -c usbasp -p $(AVRDUDE_DEVICE) -U lfuse:w:0x18:m -U hfuse:w:0xD8:m -U lock:w:0xEF:m
+endif
+ifeq (m328p, $(AVRDUDE_DEVICE))
+isp-fuse-$(AVRDUDE_DEVICE):
+       avrdude -c usbasp -p $(AVRDUDE_DEVICE) -U lfuse:w:0xEF:m -U hfuse:w:0xD8:m -U efuse:w:0xFD:m -U lock:w:0xEF:m
+endif
+ifeq (m644p, $(AVRDUDE_DEVICE))
+isp-fuse-$(AVRDUDE_DEVICE):
+       avrdude -c usbasp -p $(AVRDUDE_DEVICE) -U lfuse:w:0xEF:m -U hfuse:w:0xD8:m -U efuse:w:0xFD:m -U lock:w:0xEF:m
+endif
+ifeq (m1284p, $(AVRDUDE_DEVICE))
+isp-fuse-$(AVRDUDE_DEVICE):
+       avrdude -c usbasp -p $(AVRDUDE_DEVICE) -U lfuse:w:0xEF:m -U hfuse:w:0xD8:m -U efuse:w:0xFD:m -U lock:w:0xEF:m
+endif
+
+# --------------------------------------------------------
+# picocom sends CR for ENTER -> convert cr (\r) to lf (\n)
+
+.PHONY: picocom
+picocom:
+       picocom -b $(BAUDRATE) --omap crlf --raise-dtr /dev/ttyUSB0
+
+.PHONY: picocom0
+picocom0:
+       picocom -b $(BAUDRATE) --omap crlf --raise-dtr /dev/ttyUSB0
+
+.PHONY: picocom1
+picocom1:
+       picocom -b $(BAUDRATE) --omap crlf --raise-dtr /dev/ttyUSB1
+
+.PHONY: picocom2
+picocom2:
+       picocom -b $(BAUDRATE) --omap crlf --raise-dtr /dev/ttyUSB2
+
+# --------------------------------------------------------
+
+.PHONY: help
+help:
+       @echo
+       @echo "Possible targets are:"
+       @echo "   clean"
+       @echo "   all help info"
+       @echo "   flash flash0 flash1 flash2 flash-read flash-disassemble flash-hexdump"
+       @echo "   isp-$(AVRDUDE_DEVICE) isp-flash-$(AVRDUDE_DEVICE) isp-fuse-$(AVRDUDE_DEVICE)"
+       @echo "   picocom picocom0 picocom1 picocom2"
+       @echo "   gdb simuc"
+       @echo
+
+# --------------------------------------------------------
+
+.PHONY: release
+release: dist/$(NAME).elf sim/$(NAME).elf dist/$(NAME).hex dist/$(NAME).bin
+       ../create-release release $(word 1, $^) release/sim $(word 2, $^)
+
+# --------------------------------------------------------
+
+.PHONY: clean
+clean:
+       @rm -r dist
+       @rm -r build
+       @rm -r sim
+       @find . -type f -name ".depend" -exec rm {} \;
+       @echo "clean done"
diff --git a/sure-m16/README.md b/sure-m16/README.md

new file mode 100644 (file)

index 0000000..c616ed1
--- /dev/null
+++ b/sure-m16/README.md
@@ -0,0 +1,124 @@
+# Arduino-Bootloader (STK500) für Sure AVR-DEM1 (ATmega16, 12MHz, 5V)
+
+Dieser Bootloader ermöglicht die Programmierung über das "Arduino-System". Als Kommunikationsprotokoll kommt das [STK500 Protokoll]( https://www.microchip.com/content/dam/mchp/documents/OTH/ApplicationNotes/ApplicationNotes/doc2525.pdf) zur Anwendung (Kommunikationsablauf siehe Datei [protocol](protocol)).
+
+Beim Bootloader in [src/main.c](src/main.c) handelt es sich um eine Anpassung von [https://github.com/arduino/ArduinoCore-avr/blob/master/bootloaders/atmega/ATmegaBOOT_168.c](https://github.com/arduino/ArduinoCore-avr/blob/master/bootloaders/atmega/ATmegaBOOT_168.c) an die Hardware des Nano-1284 Boards.
+
+## Programmdateien
+
+Der Bootloader kann entweder selbst aus der Quelltextdatei erzeugt werden (siehe [Übersetzung](#%C3%BCbersetzung)), oder es wird eine der bereits fertigen Dateien im Ordner [release](release) verwendet:
+* [release/v2024-10-31_161247/bootloader-arduino_nano-m16_12mhz-115200bps.elf](release/v2024-10-31_161247/bootloader-arduino_nano-m16_12mhz-115200bps.elf)
+* [release/v2024-10-31_161247/bootloader-arduino_nano-m16_12mhz-115200bps.hex](release/v2024-10-31_161247/bootloader-arduino_nano-m16_12mhz-115200bps.hex)
+
+
+Versions Datum und Zeit sind im Flash und somit in der ELF-Datei zu finden. Durch `hexdump -C <datei>.elf` kann diese überprüft werden. Mit einem ISP-Programmiergerät lässt sich auch das Flash aus dem µC auslesen und so die Bootloader-Version kontrollieren.
+
+## Quelltextanpassungen
+
+Diese Anpassung der Quelltext-Datei umfasst:
+* Microcontroller ATmega16 mit 16KiB Flash (davon die hinteren 1KiB für den Bootloader), 1KiB SRAM, 512Byte EEPROM
+* Frequenz 12MHz
+* Serielle Schnittstelle: **115200/8N1**
+* ein der 4 LEDs (rot) als Indikator verwendet
+* Assembler-Anweisungen durch Macros aus `avr/boot.h` ersetzt
+* Quelltextkorrekturen, damit der Bootloader auch bei einer Page-Size von 256 Byte funktioniert
+
+## Übersetzung
+
+Folgende Tools sind erforderlich:
+* avr-gcc
+* avrdude
+
+Auf einem Linux-Debian System müssen daher folgende Pakete installiert sein:
+```sh
+sudo apt update
+sudo apt install gcc-avr avr-libc binutils-avr avrdude
+```
+
+Die Übersetzung erfolgt dann mit dem Kommando `make`.
+
+## Download auf den µC
+
+Die korrekte Programmierung der Fuses sowie der Download des Bootloaders in den Bootloader-Bereich des µC-Flash kann mit Hilfe eines [USBasp-Programmiergeräts](https://www.fischl.de/usbasp/) mit folgenden Kommandos erfolgen:
+
+```sh
+make isp-fuse
+make isp-flash
+```
+
+Nach der Programmierung sollte die rote LED PA0 4x blinken.
+
+Falls die *release-Version* programmiert werden soll, muss nach dem `make` die elf-Datei zuvor in den Ordner `dist` kopiert werden.
+
+```sh
+make
+cp  release/v2024-10-31_161247/bootloader-arduino_nano-m16_12mhz-115200bps.elf dist/
+make isp-fuse
+make isp-flash
+```
+
+## Download von Programmen mit Hilfe des Bootloaders
+
+Sobald sich am µC ein Bootloader befindet ist kein Programmiergerät mehr erforderlich. Das Programm wird über die serielle UART-Schnittstelle (via USB-Schnittstelle) in den Flash gespeichert.
+
+UART-Schnittstelle (Option `-P`) und Name der ELF-Programmdatei (nach `flash:w:`) sind anzupassen...
+
+```sh
+avrdude -c arduino -p m16 -P /dev/ttyUSB0 -b 115200 -e -U flash:w:programm.elf
+```
+
+## Einbindung in die Arduino IDE
+
+Zunächst den Ordner mit der Arduino Installation finden. Unter Linux ist das der Pfad:
+```
+/usr/share/arduino/hardware/arduino/avr
+```
+
+Dort im Unterordner `bootloaders` einen Ordner `sure` anlegen und darin die Intel-Hex Datei des Bootloaders ablegen.
+
+```sh
+make
+sudo mkdir /usr/share/arduino/hardware/arduino/avr/bootloaders/sure
+cp release/bootloader-arduino_nano-m16_12mhz-115200bps.hex /usr/share/arduino/hardware/arduino/avr/bootloaders/sure/
+```
+
+Danach in der Datei `/usr/share/arduino/hardware/arduino/avr/boards.txt` folgende Einträge ergänzen:
+```
+#########################################################
+
+sure.name=Sure-AVRDEMO-DEM1
+
+sure.vid.0=0x1a86
+sure.pid.0=0x7522
+sure.upload_port.0.vid=0x10c4
+sure.upload_port.0.pid=0xea60
+
+sure.upload.tool=avrdude
+sure.upload.tool.default=avrdude
+sure.upload.tool.network=arduino_ota
+sure.upload.protocol=arduino
+sure.upload.maximum_size=14336
+sure.upload.maximum_data_size=1024
+sure.upload.speed=115200
+
+sure.bootloader.tool=avrdude
+sure.bootloader.tool.default=avrdude
+sure.bootloader.low_fuses=0x18
+sure.bootloader.high_fuses=0xD8
+sure.bootloader.unlock_bits=0x3F
+sure.bootloader.lock_bits=0xEF
+sure.bootloader.file=sure/bootloader-arduino_nano-m16_12mhz-115200bps.hex
+
+sure.build.mcu=atmega16
+sure.build.f_cpu=12000000L
+sure.build.board=AVR_SURE
+sure.build.core=arduino
+sure.build.variant=standard
+
+##############################################################
+```
+
+Nach dem Start der Arduino-IDE kann:
+* über das Menü *Werkzeuge->Board* das ***Sure-AVRDEMO-DEM1*** gewählt werden
+* über das Menü *Werkzeuge->Programmer* der ***ArduinoISP*** gewählt werden
+
diff --git a/sure-m16/release/v2024-10-31_161247/bootloader-arduino_nano-m16_12mhz-115200bps.bin b/sure-m16/release/v2024-10-31_161247/bootloader-arduino_nano-m16_12mhz-115200bps.bin

new file mode 100755 (executable)

index 0000000..e0b1b28
--- /dev/null
+++ b/sure-m16/release/v2024-10-31_161247/bootloader-arduino_nano-m16_12mhz-115200bps.bin
@@ -0,0 +1,4 @@
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diff --git a/sure-m16/src b/sure-m16/src

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+../src
+\ No newline at end of file
received	Thu, 31. Oct 2024, 17:14:28 (by user sx) Thu, 31 Oct 2024 16:14:28 +0000 (17:14 +0100)
author	Manfred Steiner <sx@htl-kaindorf.at> Thu, 31 Oct 2024 16:14:07 +0000 (17:14 +0100)
committer	Manfred Steiner <sx@htl-kaindorf.at> Thu, 31 Oct 2024 16:14:07 +0000 (17:14 +0100)
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.vscode/c_cpp_properties.json	[new file with mode: 0644]	patch \| blob \| download
.vscode/launch.json	[new file with mode: 0644]	patch \| blob \| download
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LICENSE	[new file with mode: 0644]	patch \| blob \| download
Makefile	[new file with mode: 0644]	patch \| blob \| download
README.md	[new file with mode: 0644]	patch \| blob \| download
create-release	[new file with mode: 0755]	patch \| blob \| download
docs/protocol	[new file with mode: 0644]	patch \| blob \| download
nano-1284/.gdb_history	[new file with mode: 0644]	patch \| blob \| download
nano-1284/.gdbinit	[new file with mode: 0644]	patch \| blob \| download
nano-1284/.gitignore	[new file with mode: 0644]	patch \| blob \| download
nano-1284/.vscode/c_cpp_properties.json	[new file with mode: 0644]	patch \| blob \| download
nano-1284/.vscode/launch.json	[new file with mode: 0644]	patch \| blob \| download
nano-1284/.vscode/settings.json	[new file with mode: 0644]	patch \| blob \| download
nano-1284/.vscode/tasks.json	[new file with mode: 0644]	patch \| blob \| download
nano-1284/Makefile	[new file with mode: 0644]	patch \| blob \| download
nano-1284/README.md	[new file with mode: 0644]	patch \| blob \| download
nano-1284/protocol	[new file with mode: 0644]	patch \| blob \| download
nano-1284/release/v2024-10-31_161248/bootloader-arduino_nano-m1284p_12mhz-115200bps.bin	[new file with mode: 0755]	patch \| blob \| download
nano-1284/release/v2024-10-31_161248/bootloader-arduino_nano-m1284p_12mhz-115200bps.elf	[new file with mode: 0755]	patch \| blob \| download
nano-1284/release/v2024-10-31_161248/bootloader-arduino_nano-m1284p_12mhz-115200bps.hex	[new file with mode: 0644]	patch \| blob \| download
nano-1284/src	[new symlink]	patch \| blob \| download
nano-328/.gdb_history	[new file with mode: 0644]	patch \| blob \| download
nano-328/.gdbinit	[new file with mode: 0644]	patch \| blob \| download
nano-328/.gitignore	[new file with mode: 0644]	patch \| blob \| download
nano-328/.vscode/c_cpp_properties.json	[new file with mode: 0644]	patch \| blob \| download
nano-328/.vscode/launch.json	[new file with mode: 0644]	patch \| blob \| download
nano-328/.vscode/settings.json	[new file with mode: 0644]	patch \| blob \| download
nano-328/.vscode/tasks.json	[new file with mode: 0644]	patch \| blob \| download
nano-328/Makefile	[new file with mode: 0644]	patch \| blob \| download
nano-328/README.md	[new file with mode: 0644]	patch \| blob \| download
nano-328/protocol	[new file with mode: 0644]	patch \| blob \| download
nano-328/release/v2024-10-31_161247/bootloader-arduino_nano-m328p_16mhz-38400bps.bin	[new file with mode: 0755]	patch \| blob \| download
nano-328/release/v2024-10-31_161247/bootloader-arduino_nano-m328p_16mhz-38400bps.elf	[new file with mode: 0755]	patch \| blob \| download
nano-328/release/v2024-10-31_161247/bootloader-arduino_nano-m328p_16mhz-38400bps.hex	[new file with mode: 0644]	patch \| blob \| download
nano-328/src	[new symlink]	patch \| blob \| download
nano-644/.gdb_history	[new file with mode: 0644]	patch \| blob \| download
nano-644/.gdbinit	[new file with mode: 0644]	patch \| blob \| download
nano-644/.gitignore	[new file with mode: 0644]	patch \| blob \| download
nano-644/.vscode/c_cpp_properties.json	[new file with mode: 0644]	patch \| blob \| download
nano-644/.vscode/launch.json	[new file with mode: 0644]	patch \| blob \| download
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nano-644/.vscode/tasks.json	[new file with mode: 0644]	patch \| blob \| download
nano-644/Makefile	[new file with mode: 0644]	patch \| blob \| download
nano-644/README.md	[new file with mode: 0644]	patch \| blob \| download
nano-644/release/v2024-10-31_161247/bootloader-arduino_nano-m644p_12mhz-115200bps.bin	[new file with mode: 0755]	patch \| blob \| download
nano-644/release/v2024-10-31_161247/bootloader-arduino_nano-m644p_12mhz-115200bps.elf	[new file with mode: 0755]	patch \| blob \| download
nano-644/release/v2024-10-31_161247/bootloader-arduino_nano-m644p_12mhz-115200bps.hex	[new file with mode: 0644]	patch \| blob \| download
nano-644/src	[new symlink]	patch \| blob \| download
src/main.c	[new file with mode: 0644]	patch \| blob \| download
sure-m16/.gdb_history	[new file with mode: 0644]	patch \| blob \| download
sure-m16/.gdbinit	[new file with mode: 0644]	patch \| blob \| download
sure-m16/Makefile	[new file with mode: 0644]	patch \| blob \| download
sure-m16/README.md	[new file with mode: 0644]	patch \| blob \| download
sure-m16/release/v2024-10-31_161247/bootloader-arduino_nano-m16_12mhz-115200bps.bin	[new file with mode: 0755]	patch \| blob \| download
sure-m16/release/v2024-10-31_161247/bootloader-arduino_nano-m16_12mhz-115200bps.elf	[new file with mode: 0755]	patch \| blob \| download
sure-m16/release/v2024-10-31_161247/bootloader-arduino_nano-m16_12mhz-115200bps.hex	[new file with mode: 0644]	patch \| blob \| download
sure-m16/src	[new symlink]	patch \| blob \| download