hw_lcd_hd44.h File Reference

LCD low-level hardware macros. More...

#include "cfg/cfg_lcd_hd44.h"
#include <cpu/types.h>
#include <cpu/irq.h>

Go to the source code of this file.

Defines
#define	LCD_DB_OUT
	Set data bus direction to output (write to display).
#define	LCD_DB_IN
	Set data bus direction to input (read from display).
#define	LCD_DELAY_WRITE
	Delay for write (Enable pulse width, 220ns).
#define	LCD_DELAY_READ
	Delay for read (Data ouput delay time, 120ns).
LCD I/O pins/ports
DB high nibble (DB[4-7])
#define	LCD_MASK   (uint8_t)0xff
#define	LCD_SHIFT   0
LCD bus control macros
#define	LCD_CLR_RS
#define	LCD_SET_RS
#define	LCD_CLR_RD
#define	LCD_SET_RD
#define	LCD_CLR_E
#define	LCD_SET_E
#define	LCD_SET_COMMAND()
#define	LCD_SET_DATA()
#define	LCD_WRITE(x)   ((void)x)
#define	LCD_READ   (0 /* Implement me! */ )

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Detailed Description

LCD low-level hardware macros.

Author:

Bernie Innocenti <bernie@codewiz.org>

Stefano Fedrigo <aleph@develer.com>

Definition in file hw_lcd_hd44.h.