text1.c

单片机快速入门原程序

#include <reg51.h>
#include<stdio.h>
extern void cFunc();
#define uchar unsigned char	//uchar代表单个字节无符号数
#define uint unsigned int	//uint无符号字
Uart_Init();			//输出口初始化
extern void Delay(); 		//延时程序
extern void Cfun1();
extern unsigned char  Add(unsigned char ,unsigned char ,long ,long ,long);
extern xdata int nTempa;
extern xdata int nTempb;
main()
{nTempa=1;
nTempb=2;

EX0=1;
EX1=1;
EA=1;

	while(1) 
		{ nTempa=Add(1,2);
		Cfun1(); 
		}
}
Uart_Init()
	{SCON = 0x52;    /* 设置串行口控制寄存器SCON*/
	 TMOD = 0x21;    /* 12M时钟时波特率为2400  */
	 TCON = 0x69;    /* TCON */
	 TH1 =  0xf3;    /* TH1 */
	}