设置串口9600，8数据位，1偶校验，2停止位[已解决]

发布于 2013-07-25 11:22:11 浏览：4533 订阅该版

设置串口2属性如下
```#ifdef RT_USING_UART2
	USART_InitStructure.USART_BaudRate = 9600;
	USART_InitStructure.USART_WordLength = USART_WordLength_8b;
	USART_InitStructure.USART_StopBits = USART_StopBits_2;
	USART_InitStructure.USART_Parity = USART_Parity_Even;
	USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
	USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
	USART_ClockInitStructure.USART_Clock = USART_Clock_Disable;
	USART_ClockInitStructure.USART_CPOL = USART_CPOL_Low;
	USART_ClockInitStructure.USART_CPHA = USART_CPHA_2Edge;
	USART_ClockInitStructure.USART_LastBit = USART_LastBit_Disable;
	USART_Init(USART2, &USART_InitStructure);
	USART_ClockInit(USART2, &USART_ClockInitStructure);

/* register uart2 */
	rt_hw_serial_register(&uart2_device, "uart2",
		RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX | RT_DEVICE_FLAG_STREAM,
		&uart2);

/* Enable USART2 DMA Rx request */
	USART_ITConfig(USART2, USART_IT_RXNE, ENABLE);
#endif```

发送0x80，用逻辑分析仪抓到的波形是0x00。。。、