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标题: STM32串口发送问题 [打印本页]

作者: 张衍波 时间: 2015-5-20 08:11
标题: STM32串口发送问题
stm32串口发送程序单独测试是好使的但是整合到以前写的程序上去之后就发送不了了发送程序是一模一样的我想问一下这是什么原因造成的？（设置应该不会有问题因为单独测试是好使的）
Tx_Dat[0] = 0x55;
Tx_Dat[1] = 0x55;
Tx_Dat[2] = (unsigned char)(((unsigned short int)(ADUcal30))>>8);
Tx_Dat[3] = (unsigned char)(((unsigned short int)(ADUcal30))&0xff);
Tx_Dat[4] = (unsigned char)(((unsigned short int)(Dac_current*100.0))>>8);
Tx_Dat[5] = (unsigned char)(((unsigned short int)(Dac_current*100.0))&0xff);
Tx_Dat[6] = 0xAA;
Tx_Dat[7] = 0xAA;
delay_ms(100);
usart_send_data(Tx_Dat,8);

void send_data(u8 *data)
{
      int leng_temp;
      int n;
      leng_temp = strlen(data);
      for(n = 0;n < leng_temp;n++)
      {
            USART_SendData(USART1, (unsigned char) data[n]);
      while (USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET){;}
      }

}

void usart_send_data(u8 *str,u8 length)
{
      int n;
      for(n = 0;n < length;n++)
      {
            USART_SendData(USART1,str[n]);
            while (USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET){;}
      }
}
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