stm8单片机用串口2发送数据卡住

chenjiabao · 发表于 2016-12-4 12:47:06

本帖最后由 chenjiabao 于 2016-12-4 13:03 编辑

void MyUart2_Init(void)
{
      UART2_DeInit();
      UART2_Init((u32)115200, UART2_WORDLENGTH_8D, UART2_STOPBITS_1, \
            UART2_PARITY_NO, UART2_SYNCMODE_CLOCK_DISABLE, UART2_MODE_TXRX_ENABLE);
      UART2_Cmd(ENABLE);
}

void Uart2_Send_Byte(uint8_t ch)
{
      uint8_t temp;
      UART2_SendData8((unsigned char)ch);
      while (UART2_GetFlagStatus(UART2_FLAG_TXE) == RESET)//程序跳不出这个循环
      {
            temp = UART2->SR;
      }
}

int main(void)
{
   All_Congfig();
   LED_OFF();
   delay_ms(500);
   LED_ON();
   while(1)
   {
      LED_REVERSAL();
      delay_ms(500);
      Uart2_Send_Byte(0xFF);
   }

}void All_Congfig(void)
{
CLOCK_Config(SYS_CLOCK);//系统时钟初始化
LED_Init();
      MyUart2_Init();
}

stm8单片机用串口2发送数据，发送数据寄存器（UART2->SR的最高位）一直为0，在线调试发现temp一直为0x00.是哪里配置错了么？