drv_hd44780_l.h

来自「NXP LPC系列AMR7的开发程序源码（LCD」· C头文件 代码 · 共 38 行

/*************************************************************************
 *
 *    Used with ICCARM and AARM.
 *
 *    (c) Copyright IAR Systems 2007
 *
 *    File name   : drv_hd44780_l.c
 *    Description : I/O function
 *
 *    History :
 *    1. Date        : 13, September 2007
 *       Author      : Stanimir Bonev
 *       Description : Create
 *
 *    $Revision: 18137 $
 **************************************************************************/
#include "includes.h"

#ifndef  __DRV_HD44780_L_H
#define  __DRV_HD44780_L_H

#define LCD_LIGHT_ON()            LCD_BL_FSET = LCD_BL_MASK
#define LCD_LIGHT_OFF()           LCD_BL_FCLR = LCD_BL_MASK

/* Delay macro */
#define HD44780_BUS_DLY()         for(volatile int dly = 30;dly;--dly)

void HD44780_IO_Init (void);
void HD44780SetRS (Boolean Data);
void HD44780SetE (Boolean Data);
void HD44780WrIO (Int8U);
#if HD4780_WR > 0
void HD44780SetRW (Boolean Data);
Int8U HD44780RdIO (void);
#endif //HD4780_WR > 0

#endif // __DRV_HD44780_L_H