define.h

来自「51系列单片之间的串口多机通信程序。已经成功通过调试」· C头文件 代码 · 共 16 行

#define ON 1 
#define OFF 0 
#define VREF 483 
#define LED_ON P1^3=0 
#define LED_OFF P1^3=1 
#define SPK_ON P1^4=1 
#define SPK_OFF P1^4=0 
#define uchar unsigned char 
#define uint unsigned int 
#define ulong unsigned long
typedef union
{
	uint time;
	uchar hl[2];//0high byte 1 low byte
}int2char;