led.h

我自己整理的单片机4*4键盘最简扫描算法

#define MAX_LED		4

#define LED_COM_A	1
#define LED_COM_K	0

#define LED_STYLE	LED_COM_K	//程序配置：选择共阴或共阳LED

#define LED_NULL	0XFF

#define LED_SEG		P2
#define LED_IDX		P0


void InitLED(void);
void SetLED(UCHAR idx , UCHAR d);
void ShowByte(UCHAR idx , UCHAR d);
void LED_Server(void);