vcd: Added 'floating' support
Also, fixed a bug int he input file reading code.
Signed-off-by: Michel Pollet <buserror@gmail.com>
simavr: Wiggled the log levels.
Added a new LOG_OUTPUT, and a new LOG_DEBUG. Hopefully this will allow
running run_avr without -v to get the expected output.
Signed-off-by: Michel Pollet <buserror@gmail.com>
elf: Disabled some noisy traces
Not necessary, and they can't be filtered as the AVR is not populated
Signed-off-by: Michel Pollet <buserror@gmail.com>
uart: Gratuitous reformatting
New fashion!
Signed-off-by: Michel Pollet <buserror@gmail.com>
IRQs: Trace the pending vectors
Trace pending vectors, and use the new 'float' option when nothing is
pending
Signed-off-by: Michel Pollet <buserror@gmail.com>
sim_avr: Gratuitous reformatting
No functional changes
Signed-off-by: Michel Pollet <buserror@gmail.com>
irq: Added a flag for a 'floating' value
When this flag is set, the value is to be ignored.
Signed-off-by: Michel Pollet <buserror@gmail.com>
mmcu: Added tag for tracing pending IRQs
This was missing from the header.
Signed-off-by: Michel Pollet <buserror@gmail.com>
core: Cleaned up trace code.
Also fix a potential crash when using it.
Signed-off-by: Michel Pollet <buserror@gmail.com>
run_avr: Added support for --input <vcd>
Still need the backend code, let's not get overexcited here ;-)
Signed-off-by: Michel Pollet <buserror@gmail.com>
run_avr: A bit of cosmetic Also, standardize '--' for all long options
This had to be done at some point
Signed-off-by: Michel Pollet <buserror@gmail.com>
vcd: Extensive update; added support for VCD Input
Massive update here. Now allow reading from a VCD file, as long as the
traces are named in a way that allows us to connect an IRQ. Typically,
you can send pin values to for example PORTB5 by naming the trace
'iogB_5' -- you can use sigrock for example to capture traces from
real hardware, and 'replay' it in simavr.
Also since I was there, reworked the whole module to use a 'proper' FIFO
and simplified the output generation too.
There are a few 'TODO' left, but it's functional.
Signed-off-by: Michel Pollet <buserror@gmail.com>
Added sim_utils.c/h
Contains my string stripper utility. Used by the VCD input module
Signed-off-by: Michel Pollet <buserror@gmail.com>
irq: Small cleanup
Also, try to find an empty slot in the pool when adding an IRQ
Signed-off-by: Michel Pollet <buserror@gmail.com>
Fix for travis build on antique ubugtu
Doesn't have proper defs for mega2560 !
Signed-off-by: Michel Pollet <buserror@gmail.com>
Updated some tests to use the new VCD macros
No functional changes
Signed-off-by: Michel Pollet <buserror@gmail.com>
Changed the port/pin trace macros to use the generic one
Simplifed the whole operation
Signed-off-by: Michel Pollet <buserror@gmail.com>
Added new VCD tags for IRQ vector tracing
Now allow cool stuff, like tracking pending IRQs, their exact execution
time, and also a global one that shows which ones are running and when
Signed-off-by: Michel Pollet <buserror@gmail.com>
mmcu: Added VCD_PORT_PIN support
Allows specing VCD traces for PORT/PIN directly in the firmware using a
MMCU macro.
Also did a bit of housekeeping in sim_elf since I was there...
Signed-off-by: Michel Pollet <buserror@gmail.com>
mmcu ELF section fixes
Fix the problem with newer gcc, annoyingly enough this is a clear
regression in the compiler to prevent that syntax; it worked for yeards
uppon years and you can /still/ do it for singleton strings anyway!
Signed-off-by: Michel Pollet <buserror@gmail.com>
Fixed typos in comments
Been there a loooong time.
Signed-off-by: Michel Pollet <buserror@gmail.com>
irq: Updated the tracing
Nothing functional there, apart from tweaking traces
Signed-off-by: Michel Pollet <buserror@gmail.com>
Added sanity check for the .mmcu section handlers
Manage to bite myself on this one.
Signed-off-by: Michel Pollet <buserror@gmail.com>
Merge pull request #194 from hovercraft-github/used_with_simutron
When UART is driven by interrupts, the reception never starts
UART: separate TX/RX pumps, sticky UDRC and RXC interrupt flags.
Fixes #104, #193 and others.
doc: Updated callgraph
Much, much more involved than in used to be. Also shows some functions
problably should be relocated.
Signed-off-by: Michel Pollet <buserror@gmail.com>
core: Removed UTF8 sequences from comments
Makes the documentation ruby script choke.
Signed-off-by: Michel Pollet <buserror@gmail.com>
Merge pull request #197 from hovercraft-github/eeprom_boundaries
Add EEPROM address boundary checks for read/write operations
Fixes #196 : Add EEPROM address boundary checks for read/write operations
Merge pull request #198 from rlpipkin/master
adc control register write
ensure that the adsrb is written to memory
process avr_adc_configure_trigger after writing the value to memory
Merge pull request #190 from pakesson/uart_fix
Workaround for UART issues when polling in some cases
Workaround for UART issues when polling in some cases
Clear interrupt instead of just the rxc bit
misc: Spacing cleanup
Trailing space removal
Signed-off-by: Michel Pollet <buserror@gmail.com>
elf: Fix elf_copy_section
How this ever worked is a wonder
Signed-off-by: Michel Pollet <buserror@gmail.com>
cores: Add RAMPZ for the 1284p core
That was missing, fixes Issue #186
Signed-off-by: Michel Pollet <buserror@gmail.com>
misc: Some more spacing issues
geany catches stray spaces
Signed-off-by: Michel Pollet <buserror@gmail.com>
Merge pull request #173 from hovercraft-github/timers-ext-clock
Add external clock pin definition and external clocking for timers.
Timers: fixes #177 (interrupt flags reset failure)
Timers: fixes #178, add timer external clock pin definition for megax cores.
Timers: added support for external clock input via a pin (Tn, TOSC1),
a variable frequency for virtual external clock sources including as2 asynchronous clock,
IO control for selecting external clock source and frequency,
external clock pin definition for most cores.
core: Fix rjmp/rcall wrapping around flash boundaries
As per PR #127, spliced
Signed-off-by: Michel Pollet <buserror@gmail.com>
regbits: Added attribute unused
As per pull request #127
Signed-off-by: Michel Pollet <buserror@gmail.com>
misc: Spacing issues fixed
Trailing spaces removed
Signed-off-by: Michel Pollet <buserror@gmail.com>
cores: fix for 1284p timer block
This is the 'approved' way to deal with optional peripherals. Check the
name, or check a register 'address' value for != 0 instead of trying to
use #ifdefs
Signed-off-by: Michel Pollet <buserror@gmail.com>
Merge pull request #181 from messani/master
Timer fix
casting to uint64_t instead of float
renamed variable cs_div_clock to cs_div_value
Merge pull request #180 from hovercraft-github/sim_gdb_fix
sim_gdb: fix for restore callbacks issue
sim_gdb: fix for restore callbacks issue
Merge pull request #172 from Lotharyx/master
Improve usage message by not listing cores by default
Changed "-list-cores" and "-help" to "--list-cores" and "--help" respectively
Formatted the usage statement to include variants (e.g. -gdb, -g; -trace, -t)
mmcu: add helper macro for sending multi-byte commands
Add helper macro SEND_SIMAVR_CMD() for sending multi-byte commands
in one line. The macro makes use of involved preprocessor trickery to
achieve recursion.
cmds: rewrite command handling and move to separate file
Move AVR command handling code to separate file and add support for
multi-byte, as well as user-defined, commands.
(cherry picked from commit
c627c3720a6dcb1f8f7a3068510f11e3fbee0ce4)
Merge pull request #165 from inio/trace_port
Provide IRQs on PORT register when updated via PIN
elf: check for error instead of crashing
Check for error when allocating memory instead of dereferencing a NULL
pointer later in the program.
(cherry picked from commit
b3ecaf43cba921c6a257132093107771074ab749)
Conflicts:
simavr/sim/sim_elf.c
elf: Clean up code duplication and fix a cast
Use the helper function elf_copy_section() to get rid of some code
duplication and use the correct printf() type so that there is no cast
necessary.
Conflicts:
simavr/sim/sim_elf.c
elf: Wire up support for Fuses and Lock Bits
Support reading fuses and lock bits from ELF files and loading them into
the simavr internals for later use.
cores: Add a field for Lock Bits and Boot Lock Bits
Add an extra byte for allowing simavr store the chip's lock bits / boot
lock bits as well as set the default value as defined in a number of
specs.
cores: Fix fuse support to handle proper byte size
avr-libc specifies platforms with only 6, 3, 2, 1, and 0 bytes of fuses.
Previously simavr only had 4 bytes available for fuses and assumed any
platform using the CORE_DECLARE macro would have 3 fuses. This change
allows the CORE_DECLARE macro to support any of the platforms supported
by avr-libc with regard to fuses. Additionally add some defines to make
it clear for users of simavr what order the fuses are in.
Merge pull request #176 from hovercraft-github/ext_int_level_triggering
Triggering by level for external interrupts
Merge pull request #161 from obra/patch-1
Small but crucial fix to Homebrew install instructions
Merge pull request #155 from neosilky/fix-memleak
Fix a small memory leak when returning after an error
Implement triggering by level for external interrupts. Fixes bug with Sense Control Bits number detection.
Embettered the usage statement; changed "--list-cores" to "-list-cores" to match "-help"
Removed core list from default usage message; added "--list-cores" command-line flag to list cores
timer: fix calculation of comp_cycles
- bsekisser was right, there must be ocr+1
timer: fixed calculation of divider when using asynchronous 32kHz timer
timer: fixed overflow and output capture interrupts
Provide IRQs on PORT register when updated via PIN
Fixes issue #164
Merge pull request #128 from Zirias/threadsafe-console
make console output thread-safe (q&d)
make console output thread-safe
Merge pull request #154 from squell/master
added ELPM instruction with implied r0 register (opcode 1001 0101 110…
Small but crucial fix to Homebrew install instructions
Merge pull request #158 from dougszumski/feature/ds1338_real_time_clock_part
Feature/ds1338 real time clock part
examples: TWI driver used by the DS1338 RTC demo
examples: take the DS1338 virtual real time clock for a test drive
This demo consists of a DS1338 RTC connected via the TWI bus of an
atmega32. The square wave output of the DS1338 is enabled, with the
tick-rate set to 1HZ. This is then fed to pin D3 on the atmega32
which is configured to generate an interrupt on a rising edge. When
the interrupt fires the time is read from the DS1338.
parts: DS1338 real time clock which runs on the TWI bus
Features:
> External oscillator synced to the AVR core
> Square wave output with scalable frequency
> Leap year correction until 2100 (just like the real thing!)
Should also work for the pin compatible DS1307 device, but that part
hasn't been tested against actual hardware.
Fix a small memory leak when returning after an error
added ELPM instruction with implied r0 register (opcode 1001 0101 1101 1000)
Merge pull request #148 from jedahan/install-instructions
Add install instructions
Merge pull request #149 from jedahan/homebrew-prefix
Allow for homebrew installed avr-gcc to any prefix
Merge pull request #152 from stevedrake/macports-support
Update support for building with MacPorts
Merge pull request #153 from stevedrake/fix-sleep-1s
Support sleep interval of 1s or greater in gdb
build: updated support for building with MacPorts
Updated Macports support based on Homebrew support. Set correct paths
for MacPorts-provided avr-gcc and libelf.
gdb: support sleep interval of 1s or greater
Split sleep interval into seconds and microseconds to create a valid
timeval to pass as the timeout to select().
Removed comment, which refers to old code that used a fixed interval.
Allow for homebrew installed avr-gcc to any prefix
Merge pull request #145 from xqms/interrupt_fifo_fix
sim_interrupts: fix FIFO move operation
sim_interrupts: fix FIFO move operation
The variable 'mini' is a FIFO index, not a direct index into the buffer!
Add the current read pointer to fix the operation.
Fixes a regression introduced in
599733f261f94317489c2cc8751fb84fd604e6fa.
Merge pull request #141 from bsekisser/bsekisser-master-core-access-r16-fixup
core: fixup missing dependancy from r16 commit
core: fixup missing dependancy from r16 commit
several commits were pushed to a branch which I later split...
one commit had a dependency I missed which this fixes.
modified: sim/sim_core.c
fix missing dependance in MOVW instruction.
Merge pull request #135 from bsekisser/bsekisser-master-timer-clear-cancel-changes
avr_timer: add avr_timer_clear_and_cancel_all_cycle_timers
Merge pull request #134 from bsekisser/bsekisser-master-core-access-r16
core: add pair of 16 bit set register functions
timer: rework timer clear commit.
reworked to use single function with const flag to clear.
set to inline, depends on dce.
modified: sim/avr_timer.c
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