STM32的串口配置(中断方式)

STM32的串口中断配置,也是很简单的.

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);

}

然后是配置串口参数

/*******************************************************

* 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);

}

然后是在中断设置,需要修改stm32f10x_it.c 中的串口中断函数 并且需要修改void NVIC_Configuration(void)函数