port.h

来自「在8052下实现电平电压测试功能,自己开发的单片系统」· C头文件 代码 · 共 38 行

/*
----------------------------------------------------------
;		(c) Copyright xami All Rights Reserved              
----------------------------------------------------------
;	SOURCE_FILE:    PORT.C
;	APPLICATION:	80c51\80c52
;	DESCRIPTION:    端口定义
;	AUTHOR:         xami
;	DATE:           28 Apr. 2007
----------------------------------------------------------
*/
#define _reg_52			//选择不同的头文件
#ifdef _reg_51
	#include<reg51.h>
#else
	#ifdef _reg_52
	#include<reg52.h>
	#endif
#endif


sbit P2_0=P2^0;	//A
sbit P2_1=P2^1;	//B
sbit P2_2=P2^2;	//S1
sbit P2_3=P2^3;	//S2
sbit P2_4=P2^4;	//S3
sbit P2_5=P2^5;	//DDS
sbit P2_6=P2^6;
sbit P2_7=P2^7;
sbit P3_0=P3^0;	//RXD
sbit P3_1=P3^1;	//TXD
sbit P3_2=P3^2;	//INT0
sbit P3_3=P3^3;	//INT1
sbit P3_4=P3^4;	//T0
sbit P3_5=P3^5;	//T1
sbit P3_6=P3^6;	//WR
sbit P3_7=P3^7; //RD