初始化中为什么没有管脚的初始化呢

2万 · 2015-9-29 20:42

我调试串口的时候就发现了以下这个现象，USART接口初始化以下就可以发送了，但是初始化中为什么没有管脚的初始化呢，很是纳闷

2万 · 2015-9-29 20:42

void UART_Config(void)

{

      /*##-1- Configure the UART peripheral ######################################*/

  /* Put the USART peripheral in the Asynchronous mode (UART Mode) */

  /* UART1 configured as follow:

   - Word Length = 8 Bits

   - Stop Bit = One Stop bit

   - Parity = NONE parity

   - BaudRate = 115200 baud

   - Hardware flow control disabled (RTS and CTS signals) */

  huart1.Instance = USART1;

  huart1.Init.BaudRate = 9600;

  huart1.Init.WordLength = UART_WORDLENGTH_8B;

  huart1.Init.StopBits = UART_STOPBITS_1;

  huart1.Init.Parity = UART_PARITY_NONE;

  huart1.Init.Mode = UART_MODE_TX_RX;

  huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;

  HAL_UART_Init(&huart1);

}

接着使用HAL_UART_Transmit(huart,&dat,1,1000);发送函数可以正常发送数据，