head.h

用ATmega32写的采用四线接法的LCD1602驱动程序

/*------宏定义------*/
#define uchar	unsigned char
#define uint	unsigned int
#define ulint  unsigned long int
#define BIT(x)	(1<<(x))
#define NOP()	asm("nop")
#define WDR() 	asm("wdr")