led.h

51单片机控制产生4路标准舵机PWM（周期20ms

/*--------------------------------------------------------------------------
LED.H

LED access macros and functions for the DE51-S by Windsun
--------------------------------------------------------------------------*/
#include <absacc.h>

#ifndef __LED_H__
#define __LED_H__

extern unsigned char dig[4];
/* 数码管段驱动寄存器地址 */
#define ADDR_8SEG	XBYTE[0x1000]

/* 数码管位驱动和指示灯驱动寄存器地址 */
#define ADDR_SEL	XBYTE[0x2000]

/* 关断数码管显示 */
#define LEDShutDown			ADDR_SEL = 0xFF;\
					ADDR_8SEG = 0xFF;
/* 设置有效位 */
#define LEDSelDigi(i)		ADDR_SEL = ~(1 << i);//1右移i为后取反
/* 设置数码管显示内容 */
#define LEDSetVal(n)		ADDR_8SEG = NUMTOSEG7(n);

extern unsigned char NUMTOSEG7(unsigned char DATA);
extern void showdig();
extern void setdig(unsigned int * toshow );


#endif