key_h.h

8051带32Mflash的源代码

#include <reg52.h>
sfr P4 = 0xe8;
sfr AUXR = 0X8E;

sbit P40=P4^0;
sbit P41=P4^1;
sbit P42=P4^2;
sbit P43=P4^3;

#define uint unsigned int
#define uchar unsigned char

sbit key1= P4^3;
sbit key2= P3^3;
sbit key3= P3^7;
sbit key4= P1^5;
//sbit key4= P3^2;
sbit key5= P1^7;


/*----------------------------------------------------------------
		    KEYBOARD SUB PROGRAMS 	
-----------------------------------------------------------------*/
uchar key_test(void);
uchar key_scan(void);

/*----------------------------------------------------------------
	        	DELAY program 	
-----------------------------------------------------------------*/
extern void delay5us(uint utimes);    //5uS*utimes  IN 12MHZ
extern void delay10ms(uint mtimes); //10MS*mtimes  IN 12MHZ