universal_drivers/hd44780u_driver
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collected functions.. 8 bit version funcs can also be reused in 4 bit mode..

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This commit is contained in:
Christian Karl Oscar Lind Vie Madsen
2025-06-08 00:01:07 +02:00
parent cd15a9eddb
commit f55529eb52
2 changed files with 73 additions and 61 deletions
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22
lcd_hd44780.h
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@@ -12,8 +12,8 @@
#define LCD_HD44780_READ 1
typedef enum {
LCD_BITMODE_8BIT,
LCD_BITMODE_4BIT,
LCD_HD44780_BITMODE_8BIT,
LCD_HD44780_BITMODE_4BIT,
}lcd_hd44780_bitmode;
@@ -40,9 +40,25 @@ typedef enum{
}hd44780_InstData_t;
typedef struct{
uint8_t DB0 : 1;
uint8_t DB1 : 1;
uint8_t DB2 : 1;
uint8_t DB3 : 1;
uint8_t DB4 : 1;
uint8_t DB5 : 1;
uint8_t DB6 : 1;
uint8_t DB7 : 1;
}hd44780_data_bits_t;
typedef struct {
uint8_t data_bus : 8;
union{
uint8_t data_bus : 8;
hd44780_data_bits_t data_bits;
};
hd44780_setGet_t rw_pin : 1;
uint8_t e_pin : 1;
hd44780_InstData_t rs_pin :1 ;