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Support for HD44780 in 4 and 8 bit mode

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This commit is contained in:
k-brk
2019-05-01 00:12:31 +02:00
committed by Ron Evans
parent 8ac1fa2b22
commit 715829cdbd
4 changed files with 427 additions and 0 deletions
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hd44780/registers.go
+26
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@@ -0,0 +1,26 @@
package hd44780
const (
DISPLAY_CLEAR = 0x1
CURSOR_HOME = 0x2
ENTRY_MODE = 0x4
CURSOR_DECREASE = 0x4
CURSOR_INCREASE = 0x6
DISPLAY_SHIFT = 0x5
DISPLAY_NO_SHIFT = 0x4
DISPLAY_ON = 0xC
DISPLAY_OFF = 0x8
CURSOR_ON = 0xA
CURSOR_OFF = 0x8
CURSOR_BLINK_ON = 0x9
CURSOR_BLINK_OFF = 0x8
DATA_LENGTH_8BIT = 0x30
DATA_LENGTH_4BIT = 0x20
TWO_LINE = 0x28
ONE_LINE = 0x20
FONT_5X10 = 0x24
FONT_5X8 = 0x20
BUSY = 0x80
CGRAM_SET = 0x40
DDRAM_SET = 0x80
)