智能车制作

标题: VisualScope [打印本页]

作者: 超神吧chen 时间: 2017-3-30 16:37
标题: VisualScope
各位大神，我想看看小车在跑的过程中他的PWM波的波形，用蓝牙接收并发送到电脑的软件VisualScope上显示。请问有没有完整的代码啊？

作者: 超神吧chen 时间: 2017-4-10 18:02
/*
*  Description:  虚拟示波器校验码生成函数
*
*  Data:       2014.5.8
*  Author:    Liu
*/
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[i];
      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);
}

/*
*  Description:  虚拟示波器输出函数
*
*  Data:       2014.5.8
*  Author:    Liu
*/
void VisualScope_Output(float data1 ,float data2 ,float data3 ,float data4)
{
  int temp[4] = {0};
  unsigned int temp1[4] = {0};
  unsigned char databuf[10] = {0};
  unsigned char i;
  unsigned short CRC16 = 0;

  temp[0] = (int)data1;
  temp[1] = (int)data2;
  temp[2] = (int)data3;
  temp[3] = (int)data4;

  temp1[0] = (unsigned int)temp[0] ;
  temp1[1] = (unsigned int)temp[1];
  temp1[2] = (unsigned int)temp[2];
  temp1[3] = (unsigned int)temp[3];

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

  CRC16 = CRC_CHECK(databuf,8);
  databuf[8] = CRC16%256;
  databuf[9] = CRC16/256;
  for(i=0;i<10;i++)
uart_putchar(UART3,databuf[i]);
}
大神们，请问一下用蓝牙接收了小车发来的数据后，想用程序来接收数据然后用VScope显示出来，我该用那个函数啊？

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