STM8S105K4 串口2 无奇偶校验，也能接收偶校验的数据

只看该作者 · 2021-1-4 17:17

MCU STM8S105K4 设置为一个起始为，8个数据位，无校验，一个停止位，用串口助手发送能够接收的数据，还是正确的，
static void UART_Config(void)
UART2_DeInit();
   UART2_Init((uint32_t)9600, UART2_WORDLENGTH_8D, UART2_STOPBITS_1, UART2_PARITY_NO,
      UART2_SYNCMODE_CLOCK_DISABLE, UART2_MODE_TXRX_ENABLE);
   }

   /* Enable the UART Receive interrupt: this interrupt is generated when the UART
receive data register is not empty */
   UART2_ITConfig(UART2_IT_RXNE_OR, ENABLE);

   /* Enable UART */
   UART2_Cmd(ENABLE);
   /* Enable general interrupts */
   enableInterrupts();

中断接收
INTERRUPT_HANDLER(UART2_RX_IRQHandler, 21)
{
/* In order to detect unexpected events during development,
   it is recommended to set a breakpoint on the following instruction.
*/
   unsigned char temp=0;
unsigned char temp_state=0;
/* Read one byte from the receive data register */

/* temp_state=UART2->SR;
   if(temp_state&0x01)                      // 奇偶 ERROR
   {
   temp=8;
   UART2_ReceiveData8();
   //return;
}
else*/

temp_state=UART2->SR;
   if((temp_state&0x01)!=1)
   //if(UART2_GetITStatus(UART2_IT_PE) == RESET)
   {
      temp=UART2_ReceiveData8();
}

}
不知道是不是哪里设置错了