STM32的串口配置(中斷方式)
STM32的串口中斷配置,也是很簡單的.
首先是配置UART的GPIO口
首先是配置UART的GPIO口
/**********************************************
* Name : UART1_GPIO_Configuration
* Deion : Configures the uart1 GPIO ports.
* Input : None
* Output : None
* Return : None
**********************************************************/
void UART1_GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
// Configure USART1_Tx as alternate push-pull
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOA, GPIO_InitStructure);
// Configure USART1_Rx as input floating
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA, GPIO_InitStructure);
}
然后是配置串口參數(shù)
/*******************************************************
* Name : UART1_Configuration
* Deion : Configures the uart1
* Input : None
* Output : None
* Return : None
*********************************************/
void USART_Configuration(void)
{
USART_InitTypeDef USART_InitStructure;
USART_ClockInitTypeDef USART_ClockInitStructure;
Uart1_GPIO_Configuration();
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;
/* Configure the USART1 synchronous paramters */
USART_ClockInit(USART1, USART_ClockInitStructure);
USART_InitStructure.USART_BaudRate = 9600;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No ;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
/* Configure USART1 basic and asynchronous paramters */
USART_Init(USART1, USART_InitStructure);
/* Enable USART1 Receive interrupts */
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
/* Enable USART1 */
USART_Cmd(USART1, ENABLE);
}
然后是在中斷設置,需要修改stm32f10x_it.c 中的串口中斷函數(shù) 并且需要修改void NVIC_Configuration(void)函數(shù)
評論