再发一便，请各位帮看看我的8251程序哪里有问题

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ccjchen|

楼主 | 2007-2-4 14:45 | 只看该作者回帖奖励

|倒序浏览 |阅读模式

51程序, COM, TE, include, define

都快一个月了，还是一点反应都没有，用串口调试助手发送和接收都为空，其中T0用做8251对89C52的发送接收中断信号
#define _TEST_C_
#include "reg52.h"
#include "stdlib.h"
#include "absacc.h"
#include "intrins.h"
#include "test.h"

#define uchar unsigned char
#define uint  unsigned int
#define COM8251 XBYTE[0x8601]
#define DAT8251 XBYTE[0x8600]
uchar data_temp[10]={0xAA,10,22,32,0,0};
uchar i,s;
void  initmcu(void);

void main(void)
{   EA = 1;
    initmcu();
    COM8251 = 0x00;
    COM8251 = 0x00;
    COM8251 = 0x00;
    COM8251 = 0x4e;
    COM8251 = 0x37;


}
void  initmcu(void)
{
     TMOD = 0x06;     //9600波特11.0592MHz,方式2
     TL0  = 0XFF;    TH0 = 0XFF;
     TCON = 0x01;    IP  = 0x02; ET0 = 1;
}

void Trans8251()  interrupt 1 using 2
{


   for(;;)
   {
     for(i=0;i<4;i++)
        {
            do
            {
                s = COM8251;
            }while((s&0x01)==0);


              DAT8251 =  data_temp;

        }
     for(i=0;i<4;i++)
        {
            do
            {
                s = COM8251;
            }while((s&0x02) == 1);
        }
        data_temp = DAT8251;
   }
}