STM32F4(CAN)
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1，开发环境
1，适用芯片：STM32F4部分芯片
2，固件库：STM32F4xx_DSP_StdPeriph_Lib_V1.8.0
3，IDE：MDK517
2，驱动源码
CAN.h文件
/****************************************************************
* Copyright (C) 2016, XinLi, all right reserved.
* File name: CAN.h
* Date: 2016.11.30
* Description: CAN Driver
*****************************************************************/
#ifndef __CAN_H
#define __CAN_H
/****************************************************************
* Header include
*****************************************************************/
#include "stm32f4xx.h"
/****************************************************************
* Macro definition
*****************************************************************/
#define CAN1_FILTER_FIFO CAN_Filter_FIFO0
#define CAN2_FILTER_FIFO CAN_Filter_FIFO0
#if defined(STM32F413_423xx)
#define CAN3_FILTER_FIFO CAN_Filter_FIFO1
#endif /* STM32F413_423xx */
#define CAN1_FIFO CAN_FIFO0
#define CAN2_FIFO CAN_FIFO0
#if defined(STM32F413_423xx)
#define CAN3_FIFO CAN_FIFO1
#endif /* STM32F413_423xx */
/********************** CAN1 Configuration **********************/
#define RCC_AHB1Periph_CAN1_Tx RCC_AHB1Periph_GPIOA
#define RCC_AHB1Periph_CAN1_Rx RCC_AHB1Periph_GPIOA
#define GPIO_CAN1_Tx GPIOA
#define GPIO_CAN1_Rx GPIOA
#define GPIO_Pin_CAN1_Tx GPIO_Pin_12
#define GPIO_Pin_CAN1_Rx GPIO_Pin_11
#define GPIO_PinSource_CAN1_Tx GPIO_PinSource12
#define GPIO_PinSource_CAN1_Rx GPIO_PinSource11
/****************************************************************/
/********************** CAN2 Configuration **********************/
#define RCC_AHB1Periph_CAN2_Tx RCC_AHB1Periph_GPIOB
#define RCC_AHB1Periph_CAN2_Rx RCC_AHB1Periph_GPIOB
#define GPIO_CAN2_Tx GPIOB
#define GPIO_CAN2_Rx GPIOB
#define GPIO_Pin_CAN2_Tx GPIO_Pin_13
#define GPIO_Pin_CAN2_Rx GPIO_Pin_12
#define GPIO_PinSource_CAN2_Tx GPIO_PinSource13
#define GPIO_PinSource_CAN2_Rx GPIO_PinSource12
/****************************************************************/
/********************** CAN3 Configuration **********************/
#if defined(STM32F413_423xx)
#define RCC_AHB1Periph_CAN3_Tx RCC_AHB1Periph_GPIOB
#define RCC_AHB1Periph_CAN3_Rx RCC_AHB1Periph_GPIOB
#define GPIO_CAN3_Tx GPIOB
#define GPIO_CAN3_Rx GPIOB
#define GPIO_Pin_CAN3_Tx GPIO_Pin_4
#define GPIO_Pin_CAN3_Rx GPIO_Pin_3
#define GPIO_PinSource_CAN3_Tx GPIO_PinSource4
#define GPIO_PinSource_CAN3_Rx GPIO_PinSource3
#endif /* STM32F413_423xx */
/****************************************************************/
#if defined(STM32F40_41xxx)
#define BAUD_RATE_1000K ((uint16_t)2)
#define BAUD_RATE_500K ((uint16_t)4)
#define BAUD_RATE_250K ((uint16_t)8)
#define BAUD_RATE_125K ((uint16_t)16)
#define BAUD_RATE_100K ((uint16_t)20)
#define BAUD_RATE_50K ((uint16_t)40)
#define BAUD_RATE_20K ((uint16_t)100)
#define BAUD_RATE_10K ((uint16_t)200)
#endif /* STM32F40_41xxx */
#if defined(STM32F427_437xx) || defined(STM32F429_439xx) || defined(STM32F446xx) || defined(STM32F469_479xx)
#define BAUD_RATE_1000K ((uint16_t)3)
#define BAUD_RATE_500K ((uint16_t)6)
#define BAUD_RATE_250K ((uint16_t)12)
#define BAUD_RATE_125K ((uint16_t)24)
#define BAUD_RATE_100K ((uint16_t)30)
#define BAUD_RATE_50K ((uint16_t)60)
#define BAUD_RATE_20K ((uint16_t)150)
#define BAUD_RATE_10K ((uint16_t)300)
#endif /* STM32F427_437x || STM32F429_439xx || STM32F446xx || STM32F469_479xx */
#if defined(STM32F413_423xx)
#define BAUD_RATE_1000K ((uint16_t)10)
#define BAUD_RATE_500K ((uint16_t)20)
#define BAUD_RATE_250K ((uint16_t)40)
#define BAUD_RATE_125K ((uint16_t)80)
#define BAUD_RATE_100K ((uint16_t)100)
#define BAUD_RATE_50K ((uint16_t)200)
#define BAUD_RATE_20K ((uint16_t)500)
#define BAUD_RATE_10K ((uint16_t)1000)
#endif /* STM32F413_423xx */
#if defined(STM32F412xG)
#define BAUD_RATE_1000K ((uint16_t)5)
#define BAUD_RATE_500K ((uint16_t)10)
#define BAUD_RATE_250K ((uint16_t)20)
#define BAUD_RATE_125K ((uint16_t)40)
#define BAUD_RATE_100K ((uint16_t)50)
#define BAUD_RATE_50K ((uint16_t)100)
#define BAUD_RATE_20K ((uint16_t)250)
#define BAUD_RATE_10K ((uint16_t)500)
#endif /* STM32F412xG */
/****************************************************************
* Type definition
*****************************************************************/
/****************************************************************
* Structure definition
*****************************************************************/
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/****************************************************************
* Variable declaration
*****************************************************************/
/****************************************************************
* Function declaration
*****************************************************************/
void CAN_Configuration(CAN_TypeDef* CANx, uint16_t BaudRate, uint32_t StdId, uint32_t ExtId, uint8_t CAN_Mode, uint32_t CAN_IT);
void CAN_Unconfigure(CAN_TypeDef* CANx);
uint8_t CAN_TxMsg(CAN_TypeDef* CANx, CanTxMsg* TxMessage);
uint8_t CAN_RxMsg(CAN_TypeDef* CANx, CanRxMsg* RxMessage);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __CAN_H */
CAN.c文件
/****************************************************************
* Copyright (C) 2016, XinLi, all right reserved.
* File name: CAN.c
* Date: 2016.11.30
* Description: CAN Driver
*****************************************************************/
/****************************************************************
* Header include
*****************************************************************/
#include "CAN.h"
/****************************************************************
* Global variables
*****************************************************************/
static uint8_t gpioFlag = 0x00; /* Used to record the GPIO initialization flag. */
static uint8_t canFlag = 0x00; /* Used to record the CAN initialization flag. */
/****************************************************************
* Function declaration
*****************************************************************/
/****************************************************************
* Function definition
*****************************************************************/
/****************************************************************
* Function: CAN_Configuration
*
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