求助各位高手,STM32F107RC的CAN不能发送数据 - STM32 - 意法半导体STM32/STM8技术社区
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求助各位高手,STM32F107RC的CAN不能发送数据
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求助各位高手,STM32F107RC的CAN不能发送数据，我用的振晶是8M的，CAN1发送是第A端口11脚，接收是A端口12脚，现在我没有发现错误，就是不能发送回来，求求各看看是什么原因，
&&******************************************************************************
&&* @file& & CAN/DualCAN/main.c
&&* @author&&MCD Application Team
&&* @version V3.5.0
&&* @date& & 08-April-2011
&&* @brief& &Main program body
&&******************************************************************************
&&* @attention
&&* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
&&* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO S***E
&&* TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
&&* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
&&* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
&&* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
&&* (C) COPYRIGHT 2011 STMicroelectronics
&&******************************************************************************
/* Includes ------------------------------------------------------------------*/
#include&sys_cfg.h&
#include &stm32f10x.h&
//nclude &platform_config.h&
#define Key_Pressed& &0x01
#define Key_NoPressed 0x00
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
CAN_InitTypeDef& && &&&CAN_InitS
CAN_FilterInitTypeDef&&CAN_FilterInitS
RCC_ClocksTypeDef&&RCC_C
CanTxMsg TxM
uint8_t Key_Pressed_Number = 0x0;
/* Private function prototypes -----------------------------------------------*/
void RCC_Configuration(void);
void GPIO_Configuration(void);
void NVIC_Configuration(void);&&
void CAN_Config(void);
void LED_Display(uint8_t Ledstatus);
void Init_RxMes(CanRxMsg *RxMessage);
void Delay(void);
/* Private functions ---------------------------------------------------------*/
&&* @brief&&Main program.
&&* @param&&None
&&* @retval None
int main(void)
&&/* Setup STM32 system (clock, PLL and Flash configuration) */
&&SystemInit();
&&/* System clocks configuration ---------------------------------------------*/
&&RCC_Configuration();
&&/* GPIO configuration ------------------------------------------------------*/
&&GPIO_Configuration();
&&/* NVIC configuration ------------------------------------------------------*/
&&NVIC_Configuration();
&&RCC_GetClocksFreq(&RCC_Clocks);
&&/* CAN configuration */
&&CAN_Config();
&&CAN_ITConfig(CAN1, CAN_IT_FMP0, ENABLE);
&&/* Infinite loop */
&&while(1)
& && &&&TxMessage.Data[0] =0;
& && &&&CAN_Transmit(CAN1, &TxMessage);
&&* @brief&&Configures the different system clocks.
&&* @param&&None
&&* @retval None
void RCC_Configuration(void)
&&/* GPIO clock enable */
&&//RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO | RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOB, ENABLE);
// RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO |RCC_APB1Periph_CAN1, ENABLE);
&&RCC_APB1PeriphClockCmd(RCC_APB1Periph_CAN1 | RCC_APB1Periph_CAN2, ENABLE);&&
&&/* CAN1 Periph clock enable */
&&GPIO_PinRemapConfig(GPIO_Remap2_CAN1 , ENABLE);
&&GPIO_PinRemapConfig(GPIO_Remap_CAN2, ENABLE);
&&* @brief&&Configures the GPIO.
&&* @param&&None
&&* @retval None
void GPIO_Configuration(void)
&&GPIO_InitTypeDef&&GPIO_InitS
&&/* Configure CAN pin: RX */
&&GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11;
&&GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
&&GPIO_Init(GPIOA, &GPIO_InitStructure);
&&/* Configure CAN pin: RX */
&&GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;
&&GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
&&GPIO_Init(GPIOB, &GPIO_InitStructure);
&&/* Configure CAN pin: TX */
&&GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;
&&GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
&&GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
&&GPIO_Init(GPIOA, &GPIO_InitStructure);
&&GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13;
&&//GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
// GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
&&GPIO_Init(GPIOB, &GPIO_InitStructure);
&&GPIO_PinRemapConfig(GPIO_Remap2_CAN1 , ENABLE);
&&* @brief&&Configures the NVIC for CAN.
&&* @param&&None
&&* @retval None
void NVIC_Configuration(void)
&&NVIC_InitTypeDef&&NVIC_InitS
&&NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
&&NVIC_InitStructure.NVIC_IRQChannel =CAN1_RX0_IRQn;&&//中断函数
&&NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
&&NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x00;
&&NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
&&NVIC_Init(&NVIC_InitStructure);
&&NVIC_InitStructure.NVIC_IRQChannel =CAN2_RX0_IRQn;&&//发送中断函数
&&NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
&&NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x00;
// NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
&&NVIC_Init(&NVIC_InitStructure);
&&* @brief&&Configures the CAN.
&&* @param&&None
&&* @retval None
void CAN_Config(void)
&&/* CAN register init */
&&CAN_DeInit(CAN1);
&&CAN_StructInit(&CAN_InitStructure);
&&/* CAN cell init */
&&CAN_InitStructure.CAN_TTCM = DISABLE;
&&CAN_InitStructure.CAN_ABOM = DISABLE;
&&CAN_InitStructure.CAN_AWUM = DISABLE;
&&CAN_InitStructure.CAN_NART = DISABLE;
&&CAN_InitStructure.CAN_RFLM = DISABLE;
&&CAN_InitStructure.CAN_TXFP = DISABLE;
&&CAN_InitStructure.CAN_Mode = CAN_Mode_N
&&//CAN_InitStructure.CAN_Mode = CAN_Mode_LoopB
&&CAN_InitStructure.CAN_SJW = CAN_SJW_1
&&CAN_InitStructure.CAN_BS1 = CAN_BS1_3
&&CAN_InitStructure.CAN_BS2 = CAN_BS2_5
&&CAN_InitStructure.CAN_Prescaler = 4;//2
&&CAN_Init(CAN1, &CAN_InitStructure);
/* CAN filter init */
&&CAN_FilterInitStructure.CAN_FilterNumber=14;
&&CAN_FilterInitStructure.CAN_FilterMode=CAN_FilterMode_IdM
&&CAN_FilterInitStructure.CAN_FilterScale=CAN_FilterScale_32
&&CAN_FilterInitStructure.CAN_FilterIdHigh=0x0000;
&&CAN_FilterInitStructure.CAN_FilterIdLow=0x0000;
&&CAN_FilterInitStructure.CAN_FilterMaskIdHigh=0x0000;
&&CAN_FilterInitStructure.CAN_FilterMaskIdLow=0x0000;
&&CAN_FilterInitStructure.CAN_FilterFIFOAssignment=0;
&&CAN_FilterInitStructure.CAN_FilterActivation=ENABLE;
&&CAN_FilterInit(&CAN_FilterInitStructure);
& &/* transmit */
&&TxMessage.StdId = 0x321;
&&TxMessage.ExtId = 0x01;
&&TxMessage.RTR = CAN_RTR_DATA;
&&TxMessage.IDE = CAN_ID_STD;
&&TxMessage.DLC = 1;
&&* @brief&&Delay
&&* @param&&None
&&* @retval None
void Delay()
&&uint16_t nTime = 0x0000;
& & for(nTime =0; nTime StdId = 0x00;
&&RxMessage-&ExtId = 0x00;
&&RxMessage-&IDE = CAN_ID_STD;
&&RxMessage-&DLC = 0;
&&RxMessage-&FMI = 0;
&&for (i = 0;i & 8;i++)
& & RxMessage-&Data = 0x00;
#ifdef&&USE_FULL_ASSERT
&&* @brief&&Reports the name of the source file and the source line number
&&*& &where the assert_param error has occurred.
&&* @param&&file: pointer to the source file name
&&* @param&&line: assert_param error line source number
&&* @retval None
void assert_failed(uint8_t* file, uint32_t line)
&&/* User can add his own implementation to report the file name and line number,
& &&&ex: printf(&Wrong parameters value: file %s on line %d\r\n&, file, line) */
&&/* Infinite loop */
&&while (1)
/******************* (C) COPYRIGHT 2009 STMicroelectronics *****END OF FILE****/
            
      
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回复:求助各位高手,STM32F107RC的CAN不能发送数据
现在我没有发现错误，就是不能发送数据，求求各看看是什么原因，
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回复:求助各位高手,STM32F107RC的CAN不能发送数据
各位看看是什么原因啊，每次都是这些问题，真不知道怎样查啊，
            
      
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RE:求助各位高手,STM32F107RC的CAN不能发送数据
请检查频率设置的是否匹配。
CAN_InitStructure.CAN_SJW = CAN_SJW_1
CAN_InitStructure.CAN_BS1 = CAN_BS1_3
CAN_InitStructure.CAN_BS2 = CAN_BS2_5
CAN_InitStructure.CAN_Prescaler = 4;//2
CAN_Init(CAN1, &CAN_InitStructure);
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RE:求助各位高手,STM32F107RC的CAN不能发送数据
那肯定是配置的问题。
            
      
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