STM32 串口配置 注意事项

 USART_InitStructure.USART_BaudRate = 9600;

 USART_InitStructure.USART_WordLength = USART_WordLength_9b;  //此处在有奇偶校验时需要9个数据位，无奇偶校验时8个数据位

 USART_InitStructure.USART_StopBits = USART_StopBits_1;