03a01c70dc1b001d06729a2ad42ad2310585d32e

diff --git a/examples/parts/hd44780.c b/examples/parts/hd44780.c
index 1d0da5d7faf650c8e1692b3961af370ead833d81..7428be3651f8a3ae462d290efc60325544b35c9c 100644 (file)
--- a/examples/parts/hd44780.c
+++ b/examples/parts/hd44780.c
@@ -65,7 +65,7 @@ _hd44780_clear_screen(
 
 
 /*
- * This is called when the delay between operation is triggered
+ * This is called when the delay between operations is triggered
  * without the AVR firmware 'reading' the status byte. It
  * automatically clears the BUSY flag for the next command
  */
@@ -156,7 +156,7 @@ hd44780_write_command(
                hd44780_t *b)
 {
        uint32_t delay = 37; // uS
-       int top = 7;    // get highest bit set'm
+       int top = 7;    // get highest bit set
        while (top)
                if (b->datapins & (1 << top))
                        break;
@@ -164,7 +164,7 @@ hd44780_write_command(
        printf("hd44780_write_command %02x\n", b->datapins);
 
        switch (top) {
-               // Set  DDRAM address
+               // Set DDRAM address
                case 7:         // 1 ADD ADD ADD ADD ADD ADD ADD
                        b->cursor = b->datapins & 0x7f;
                        if (hd44780_get_flag(b, HD44780_FLAG_N)) { // 2-line display
@@ -177,8 +177,8 @@ hd44780_write_command(
                                        b->cursor = 0x00;
                        }
                        break;
-               // Set  CGRAM address
-               case 6:         // 0 1 ADD ADD ADD ADD ADD ADD ADD
+               // Set CGRAM address
+               case 6:         // 0 1 ACG ACG ACG ACG ACG ACG
                        b->cursor = 0x80 + (b->datapins & 0x3f);
                        break;
                // Function     set

diff --git a/examples/parts/hd44780.h b/examples/parts/hd44780.h
index e359e6f1fd4ac1d8744d8c067fc4a1b51a31ace5..c165314c96fcecc00b985ad2c1eb7883d298aacc 100644 (file)
--- a/examples/parts/hd44780.h
+++ b/examples/parts/hd44780.h
@@ -30,12 +30,12 @@
  * + As usual, the "RW" pin is optional if you are willing to wait for the
  *   specific number of cycles as per the datasheet (37uS between operations)
  * + If you decide to use the RW pin, the "busy" flag is supported and will
- *   be automaticly cleared on the second read, to exercisee the code a bit.
- * + Cursor is supported, but now "display shift"
+ *   be automatically cleared on the second read, to exercise the code a bit.
+ * + Cursor is supported, but no "display shift"
  * + The Character RAM is supported, but is not currently drawn.
  *
  * To interface this part, you can use the "INPUT" IRQs and hook them to the
- * simavr instance, if you use the RW pins or read back frim the display, you
+ * simavr instance, if you use the RW pins or read back from the display, you
  * can hook the data pins /back/ to the AVR too.
  *
  * The "part" also provides various IRQs that are there to be placed in a VCD file
@@ -77,13 +77,13 @@ enum {
     HD44780_FLAG_C,             // 1: Cursor on
     HD44780_FLAG_D,             // 1: Set Entire Display memory (for clear)
     HD44780_FLAG_S,             // 1: Follow display shift
-    HD44780_FLAG_I_D,                  // 1: Increment, 0: Decrement
+    HD44780_FLAG_I_D,           // 1: Increment, 0: Decrement
 
     /*
      * Internal flags, not HD44780
      */
     HD44780_FLAG_LOWNIBBLE,            // 1: 4 bits mode, write/read low nibble
-    HD44780_FLAG_BUSY,                 // 1: Busy between instruction, 0: ready
+    HD44780_FLAG_BUSY,                 // 1: Busy between instructions, 0: ready
     HD44780_FLAG_REENTRANT,            // 1: Do not update pins
 
     HD44780_FLAG_DIRTY,                        // 1: needs redisplay...
@@ -100,7 +100,7 @@ typedef struct hd44780_t
        uint16_t cursor;                        // offset in vram
        uint8_t  vram[0x80 + 0x40];
 
-       uint16_t pinstate;                      // 'actual' LCd data pins (IRQ bit field)
+       uint16_t pinstate;                      // 'actual' LCD data pins (IRQ bit field)
        // uint16_t oldstate;                   /// previous pins
        uint8_t  datapins;                      // composite of 4 high bits, or 8 bits
        uint8_t  readpins;