大家看看这个串口示波器肿么了......

renqinglei · 发表于 2012-4-19 17:04:31

我看这个都两天了，各种程序试，还是串口助手能看见数据，没波形，
#include<reg52.h>
//#include <intrins.H>
#define uchar unsigned char
#define uint unsigned int
float OutData[4] = {1100.2,340.5,903.4,100.5};
void uart_putchar(uchar a)
{
SBUF=a;
while(!TI);
TI=0;
}

unsigned short CRC_CHECK(unsigned char *Buf, unsigned char CRC_CNT)
{
unsigned short CRC_Temp;
unsigned char i,j;
CRC_Temp = 0xffff;

for (i=0;i<CRC_CNT; i++){
      CRC_Temp ^= Buf;
      for (j=0;j<8;j++) {
         if (CRC_Temp & 0x01)
            CRC_Temp = (CRC_Temp >>1 ) ^ 0xa001;
         else
            CRC_Temp = CRC_Temp >> 1;
      }
}
return(CRC_Temp);
}

void OutPut_Data(void)
{
  int temp[4] = {0};
  unsigned int temp1[4] = {0};
  unsigned char databuf[10] = {0};
  unsigned char i;
  unsigned short CRC16 = 0;
  for(i=0;i<4;i++)
{

temp  = (int)OutData;
temp1 = (unsigned int)temp;

}

  for(i=0;i<4;i++)
  {
databuf[i*2] = (unsigned char)(temp1%256);
databuf[i*2+1] = (unsigned char)(temp1/256);
  }

  CRC16 = CRC_CHECK(databuf,8);
  databuf[8] = CRC16%256;
  databuf[9] = CRC16/256;

  for(i=0;i<10;i++)
uart_putchar(databuf);
}
//****************
// 主函数
//****************
void main()
{
    //------设置串口------
    SCON=0x50; //串口方式1
    TMOD=0x20; //定时器1，定时方式为2
    PCON=0x00; //设定串口工作方式1/64
    TCON=0x40; //设定时器1开始计数
    TH1=0xfd;  //设定波特率为9600
    TL1=0xfd;  //
    TR1=1;    //启动定时器
    for(;;)
{
OutPut_Data();
}
}

我用的51测试，大家帮帮忙