3e33b6fabf7b34f126e48a3dd54909cac1699cd6

Datasheet mandates filling DDRAM with spaces, setting address
counter to DDRAM address 0, and setting entry mode I/D to 1
(increment mode).

The "filling with spaces" was implemented but the rest was missing.
Now added.

diff --git a/examples/parts/hd44780.c b/examples/parts/hd44780.c
index 0be074f97791b8bd8b3e34927f5c4afba664efef..a2d0177a9e8546ad84318187ae0f2a759afbe1b4 100644 (file)
--- a/examples/parts/hd44780.c
+++ b/examples/parts/hd44780.c
@@ -56,6 +56,8 @@ _hd44780_clear_screen(
                hd44780_t *b)
 {
        memset(b->vram, ' ', 0x80);
+       b->cursor = 0;
+       hd44780_set_flag(b, HD44780_FLAG_I_D, 2);
        hd44780_set_flag(b, HD44780_FLAG_DIRTY, 1);
        avr_raise_irq(b->irq + IRQ_HD44780_ADDR, b->cursor);
 }