void CAN_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
CAN_InitTypeDefCAN_InitStructure;
CAN_FilterInitTypeDefCAN_FilterInitStructure;
/* CAN register init */
// CAN_DeInit();
RCC_APB1PeriphClockCmd(RCC_APB1Periph_CAN, ENABLE);
//刚开始漏掉这句，一直无法进入初始化模式
RCC_APB2PeriphClockCmd( RCC_APB2Periph_AFIO, ENABLE );
//?′??CAN1μ??ùóD??′??÷
// RCC_APB1PeriphResetCmd(RCC_APB1Periph_CAN, ENABLE);
// CAN_StructInit(&CAN_InitStructure);
//????′??÷è?2?éè??3é??è??μ
/*????CAN???úCAN pin: RX*/
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
//IO???úμ?μú8??
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode =GPIO_Mode_IPU;
// GPIO_Mode_IN_FLOATING;
//???ú?￡ê??aé?à-ê?è?·?ê?
GPIO_Init(GPIOB, &GPIO_InitStructure);
/* Configure CAN pin: TX */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
//IO???úμ?μú9??
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
//???ú?￡ê??a?′ó?í?à-ê?3?·?ê?
GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_PinRemapConfig(GPIO_Remap1_CAN , ENABLE);
//???¨ò?CAN1μ?PB?ú
/* CAN cell init */
CAN_InitStructure.CAN_TTCM=DISABLE;
//???1ê±??′￥·￠í¨D?·?ê?
CAN_InitStructure.CAN_ABOM=DISABLE;
//???1CAN×ü??×??ˉ1?±?1üàí
CAN_InitStructure.CAN_AWUM=DISABLE;
//???1×??ˉ??D??￡ê?
CAN_InitStructure.CAN_NART=ENABLE;
//???1·?×??ˉ??′??￡ê?
CAN_InitStructure.CAN_RFLM=DISABLE;
//???1?óê?FIFO???¨
CAN_InitStructure.CAN_TXFP=DISABLE;
//ENABLE;
//???1·￠?íFIFOó??è??
CAN_InitStructure.CAN_Mode=CAN_Mode_Normal;
//CAN_Mode_LoopBack;
//CAN_Mode_Normal;
//éè??CAN1¤×÷·?ê??a?y3￡ê?·￠?￡ê?
/* CAN 2¨ì??ê */
CAN_InitStructure.CAN_SJW=CAN_SJW_1tq;
//éè????D?í?2?ì?×aμ?ê±??á?×ó
CAN_InitStructure.CAN_BS1=CAN_BS1_9tq;
//éè??×???1μ?ê±??á?×óêy
CAN_InitStructure.CAN_BS2=CAN_BS2_8tq;
//éè??×???2μ?ê±??á?×óêy
CAN_InitStructure.CAN_Prescaler=20;
//·??μ?μêy
μí2¨ì??ê???àà?′?ê??ü?è?¨￡?è?1??àà??ì?éò?μ÷D??a???μ
CAN_Init(&CAN_InitStructure);
//ó?ò?é?2?êy3?ê??ˉCAN1???ú
/* CAN filter init */
CAN_FilterInitStructure.CAN_FilterNumber=0;
//????CAN1y???÷0
CAN_FilterInitStructure.CAN_FilterMode=CAN_FilterMode_IdMask;
//3?ê??ˉ?a±êê?/?á±??￡ê?
CAN_FilterInitStructure.CAN_FilterScale=CAN_FilterScale_32bit;
//????1y???÷?a32??
CAN_FilterInitStructure.CAN_FilterIdHigh=0x0000;
//1y???÷±êê?o???16??
CAN_FilterInitStructure.CAN_FilterIdLow=0x0000;
//1y???÷±êê?o?μí16??
//????è?0￡???1y??è?o?±êê?o?
CAN_FilterInitStructure.CAN_FilterMaskIdHigh=0x0000;
//?ù?Y?￡ê?????1y???÷±êê?o??ò?á±?o?μ???16??
CAN_FilterInitStructure.CAN_FilterMaskIdLow=0x0000;
//?ù?Y?￡ê?????1y???÷±êê?o??ò?á±?o?μ?μí16??
CAN_FilterInitStructure.CAN_FilterFIFOAssignment=CAN_FIFO0;
//??FIFO 0·?????1y???÷0
CAN_FilterInitStructure.CAN_FilterActivation=ENABLE;
//ê1?ü1y???÷
CAN_FilterInit(&CAN_FilterInitStructure);
/* CAN FIFO0 ?óê??D??ê1?ü */
// CAN_ITConfig(CAN_IT_FMP0, ENABLE);
【STM32的CAN总线初始化】}
折腾了一天一直无法弄出来，是在以前程序上加个CAN功能，时钟使能在void RCC_Configuration(void)定义的，添加CAN忘了定义CAN时钟，弄一天都要开始怀疑人生了！！！！
