variable.h

指纹通讯模块程序

#include <stdio.h>
#include <reg51.h>

sbit		P0_0=P0^0;
sbit		P0_1=P0^1;
sbit		P0_2=P0^2;
sbit		P0_3=P0^3;
sbit		P0_4=P0^4;
sbit		P0_5=P0^5;
sbit		P0_6=P0^6;
sbit		P0_7=P0^7;

sbit		P1_0=P1^0;
sbit		P1_1=P1^1;
sbit		P1_2=P1^2;
sbit		P1_3=P1^3;
sbit		P1_4=P1^4;
sbit		P1_5=P1^5;
sbit		P1_6=P1^6;
sbit		P1_7=P1^7;

sbit		P2_0=P2^0;
sbit		P2_1=P2^1;
sbit		P2_2=P2^2;
sbit		P2_3=P2^3;
sbit		P2_4=P2^4;
sbit		P2_5=P2^5;
sbit		P2_6=P2^6;

sbit		P2_7=P2^7;

sbit		P3_0=P3^0;
sbit		P3_1=P3^1;
sbit		P3_2=P3^2;
sbit		P3_3=P3^3;
sbit		P3_4=P3^4;
sbit		P3_5=P3^5;
sbit		P3_6=P3^6;
sbit		P3_7=P3^7;

 //上边键盘扫描口  （从左到右）
#define    	UpKey1	P1_3
#define		UpKey2	P1_2
#define		UpKey3	P1_1
#define         UpKey4  P1_0

//从上到下
#define		Led1    	P1_4   //高电平 亮
#define		Led2	        P1_5   //高电平 亮
#define		Led3          	P1_6   //高电平 亮
#define		Led4	        P1_7   //高电平 亮