STM32 F4串口接收中断

STM32 F4串口接收中断

.c文件中：

void NVIC_Configuration(void)
{NVIC_InitTypeDef NVIC_InitStructure;NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);NVIC_InitStructure.NVIC_IRQChannel = DEBUG_USART_IRQ;NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;NVIC_Init(&NVIC_InitStructure);NVIC_InitStructure.NVIC_IRQChannel = DEBUG_USART2_IRQ;  /* 配置USART为中断源 */  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;     /* 抢断优先级为1 */  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;            /* 子优先级为1 */  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;               /* 使能中断 */  NVIC_Init(&NVIC_InitStructure);                               /* 初始化配置NVIC */}

void Debug_USART_Config(void)
{GPIO_InitTypeDef GPIO_InitStructure;USART_InitTypeDef USART_InitStructure;RCC_AHB1PeriphClockCmd(DEBUG_USART_RX_GPIO_CLK|DEBUG_USART_TX_GPIO_CLK,ENABLE);RCC_APB2PeriphClockCmd(DEBUG_USART_CLK, ENABLE);GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;GPIO_InitStructure.GPIO_Pin = DEBUG_USART_TX_PIN  ;  GPIO_Init(DEBUG_USART_TX_GPIO_PORT, &GPIO_InitStructure);GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;GPIO_InitStructure.GPIO_Pin = DEBUG_USART_RX_PIN;GPIO_Init(DEBUG_USART_RX_GPIO_PORT, &GPIO_InitStructure);GPIO_PinAFConfig(DEBUG_USART_RX_GPIO_PORT,DEBUG_USART_RX_SOURCE,DEBUG_USART_RX_AF);GPIO_PinAFConfig(DEBUG_USART_TX_GPIO_PORT,DEBUG_USART_TX_SOURCE,DEBUG_USART_TX_AF);USART_InitStructure.USART_BaudRate = DEBUG_USART_BAUDRATE;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;USART_Init(DEBUG_USART, &USART_InitStructure); USART_ITConfig(DEBUG_USART, USART_IT_RXNE, ENABLE);USART_Cmd(DEBUG_USART, ENABLE);
}//****************串口2****************************
void DEBUG_USART2_Config(void)
{GPIO_InitTypeDef GPIO_InitStructure;USART_InitTypeDef USART_InitStructure;RCC_AHB1PeriphClockCmd(DEBUG_USART2_RX_GPIO_CLK|DEBUG_USART2_TX_GPIO_CLK,ENABLE);RCC_APB1PeriphClockCmd(DEBUG_USART2_CLK, ENABLE);GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;GPIO_InitStructure.GPIO_Pin = DEBUG_USART2_TX_PIN  ;  GPIO_Init(DEBUG_USART2_TX_GPIO_PORT, &GPIO_InitStructure);GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;GPIO_InitStructure.GPIO_Pin = DEBUG_USART2_RX_PIN;GPIO_Init(DEBUG_USART2_RX_GPIO_PORT, &GPIO_InitStructure);GPIO_PinAFConfig(DEBUG_USART2_RX_GPIO_PORT,DEBUG_USART2_RX_SOURCE,DEBUG_USART2_RX_AF);	/* 连接 PXx 到 USARTx_Tx*/ GPIO_PinAFConfig(DEBUG_USART2_TX_GPIO_PORT,DEBUG_USART2_TX_SOURCE,DEBUG_USART2_TX_AF);	/* 连接 PXx 到 USARTx__Rx*/USART_InitStructure.USART_BaudRate = DEBUG_USART2_BAUDRATE;		/* 波特率设置：DEBUG_USART_BAUDRATE */  USART_InitStructure.USART_WordLength = USART_WordLength_8b;		/* 字长(数据位+校验位)：8 */  USART_InitStructure.USART_StopBits = USART_StopBits_1;				/* 停止位：1个停止位 */  USART_InitStructure.USART_Parity = USART_Parity_No;						/* 校验位选择：不使用校验 */  USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;	/* 硬件流控制：不使用硬件流 */  USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;									/* USART模式控制：同时使能接收和发送 */  USART_Init(DEBUG_USART2, &USART_InitStructure); 																/* 完成USART初始化配置 */USART_ITConfig(DEBUG_USART2, USART_IT_RXNE, ENABLE);	/* 使能串口接收中断 */	USART_ITConfig(DEBUG_USART2, USART_IT_IDLE, ENABLE);/* 使能串口帧检测中断 */USART_Cmd(DEBUG_USART2, ENABLE);											/* 使能串口 */
}//****************串口3****************************
void DEBUG_USART3_Config(void)
{GPIO_InitTypeDef GPIO_InitStructure;USART_InitTypeDef USART_InitStructure;RCC_AHB1PeriphClockCmd(DEBUG_USART3_RX_GPIO_CLK|DEBUG_USART3_TX_GPIO_CLK,ENABLE);RCC_APB1PeriphClockCmd(DEBUG_USART3_CLK, ENABLE);GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;GPIO_InitStructure.GPIO_Pin = DEBUG_USART3_TX_PIN  ;  GPIO_Init(DEBUG_USART3_TX_GPIO_PORT, &GPIO_InitStructure);GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;GPIO_InitStructure.GPIO_Pin = DEBUG_USART3_RX_PIN;GPIO_Init(DEBUG_USART3_RX_GPIO_PORT, &GPIO_InitStructure);GPIO_PinAFConfig(DEBUG_USART3_RX_GPIO_PORT,DEBUG_USART3_RX_SOURCE,DEBUG_USART3_RX_AF);	/* 连接 PXx 到 USARTx_Tx*/ GPIO_PinAFConfig(DEBUG_USART3_TX_GPIO_PORT,DEBUG_USART3_TX_SOURCE,DEBUG_USART3_TX_AF);	/* 连接 PXx 到 USARTx__Rx*/USART_InitStructure.USART_BaudRate = DEBUG_USART3_BAUDRATE;		/* 波特率设置：DEBUG_USART_BAUDRATE */  USART_InitStructure.USART_WordLength = USART_WordLength_8b;		/* 字长(数据位+校验位)：8 */  USART_InitStructure.USART_StopBits = USART_StopBits_1;				/* 停止位：1个停止位 */  USART_InitStructure.USART_Parity = USART_Parity_No;						/* 校验位选择：不使用校验 */  USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;	/* 硬件流控制：不使用硬件流 */  USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;									/* USART模式控制：同时使能接收和发送 */  USART_Init(DEBUG_USART3, &USART_InitStructure); 																/* 完成USART初始化配置 */USART_ITConfig(DEBUG_USART3, USART_IT_RXNE, ENABLE);	/* 使能串口接收中断 */	USART_ITConfig(DEBUG_USART3, USART_IT_IDLE, ENABLE);/* 使能串口帧检测中断 */USART_Cmd(DEBUG_USART3, ENABLE);											/* 使能串口 */
}

.h文件中

#include "stm32f4xx.h"
#include <stdio.h>//引脚定义
/*******************************************************/
#define DEBUG_USART                             USART1
#define DEBUG_USART_CLK                         RCC_APB2Periph_USART1
#define DEBUG_USART_BAUDRATE                    115200  //串口波特率#define DEBUG_USART_RX_GPIO_PORT                GPIOA
#define DEBUG_USART_RX_GPIO_CLK                 RCC_AHB1Periph_GPIOA
#define DEBUG_USART_RX_PIN                      GPIO_Pin_10
#define DEBUG_USART_RX_AF                       GPIO_AF_USART1
#define DEBUG_USART_RX_SOURCE                   GPIO_PinSource10#define DEBUG_USART_TX_GPIO_PORT                GPIOA
#define DEBUG_USART_TX_GPIO_CLK                 RCC_AHB1Periph_GPIOA
#define DEBUG_USART_TX_PIN                      GPIO_Pin_9
#define DEBUG_USART_TX_AF                       GPIO_AF_USART1
#define DEBUG_USART_TX_SOURCE                   GPIO_PinSource9#define DEBUG_USART_IRQHandler                  USART1_IRQHandler
#define DEBUG_USART_IRQ                 				USART1_IRQn
/************************************************************///串口2引脚定义
/*******************************************************/
#define DEBUG_USART2                             USART2
#define DEBUG_USART2_CLK                         RCC_APB1Periph_USART2
#define DEBUG_USART2_BAUDRATE                    9600  //串口波特率#define DEBUG_USART2_RX_GPIO_PORT                GPIOD
#define DEBUG_USART2_RX_GPIO_CLK                 RCC_AHB1Periph_GPIOD
#define DEBUG_USART2_RX_PIN                      GPIO_Pin_6
#define DEBUG_USART2_RX_AF                       GPIO_AF_USART2
#define DEBUG_USART2_RX_SOURCE                   GPIO_PinSource6#define DEBUG_USART2_TX_GPIO_PORT                GPIOD
#define DEBUG_USART2_TX_GPIO_CLK                 RCC_AHB1Periph_GPIOD
#define DEBUG_USART2_TX_PIN                      GPIO_Pin_5
#define DEBUG_USART2_TX_AF                       GPIO_AF_USART2
#define DEBUG_USART2_TX_SOURCE                   GPIO_PinSource5#define DEBUG_USART2_IRQHandler                  USART2_IRQHandler
#define DEBUG_USART2_IRQ                 				 USART2_IRQn
/************************************************************///串口3引脚定义
/*******************************************************/
#define DEBUG_USART3                             USART3
#define DEBUG_USART3_CLK                         RCC_APB1Periph_USART3
#define DEBUG_USART3_BAUDRATE                    9600  //串口波特率#define DEBUG_USART3_RX_GPIO_PORT                GPIOB
#define DEBUG_USART3_RX_GPIO_CLK                 RCC_AHB1Periph_GPIOB
#define DEBUG_USART3_RX_PIN                      GPIO_Pin_11
#define DEBUG_USART3_RX_AF                       GPIO_AF_USART3
#define DEBUG_USART3_RX_SOURCE                   GPIO_PinSource11#define DEBUG_USART3_TX_GPIO_PORT                GPIOB
#define DEBUG_USART3_TX_GPIO_CLK                 RCC_AHB1Periph_GPIOB
#define DEBUG_USART3_TX_PIN                      GPIO_Pin_10
#define DEBUG_USART3_TX_AF                       GPIO_AF_USART3
#define DEBUG_USART3_TX_SOURCE                   GPIO_PinSource10#define DEBUG_USART3_IRQHandler                  USART3_IRQHandler
#define DEBUG_USART3_IRQ                 				 USART3_IRQn
/************************************************************/void NVIC_Configuration(void);
void Debug_USART_Config(void);
void DEBUG_USART2_Config(void);
void DEBUG_USART3_Config(void);