请问各位大侠，我在stm32 CAN过滤器组编号为什么只能到4，大于5就不管用了，为什么？

正点原子

1楼-- · 2019-07-20 15:29

精彩回答 2 元偷偷看……

STM32新学习者

2楼-- · 2019-07-20 15:29

精彩回答 2 元偷偷看……

jchj

3楼-- · 2019-07-20 16:39

STM32新学习者发表于 2017-7-8 11:48
代码发出来看看呀！！！！

    GPIO_InitTypeDef GPIO_InitStructure;
   CAN_InitTypeDef       CAN_InitStructure;
    CAN_FilterInitTypeDef  CAN_FilterInitStructure1,CAN_FilterInitStructure2,CAN_FilterInitStructure3,CAN_FilterInitStructure4;
CAN_FilterInitTypeDef  CAN_FilterInitStructure5,CAN_FilterInitStructure6;
   NVIC_InitTypeDef  NVIC_InitStructure;
   unsigned short mask;
   unsigned short filter_data1[] = {0x500, 0x501, 0x502, 0x503, 0x504, 0x505, 0x506, 0x507, 0x508, 0x509, 0x50A, 0x50B, 0x50C, 0x50D, 0x50E, 0x50F};
   unsigned short filter_data2[] = {0x510, 0x511, 0x512, 0x513, 0x514, 0x515, 0x516, 0x517, 0x518, 0x519, 0x51A, 0x51B, 0x51C, 0x51D, 0x51E, 0x51F};
   unsigned short filter_data3[] = {0x520, 0x521, 0x522, 0x523, 0x524, 0x525, 0x526, 0x527, 0x528, 0x529, 0x52A, 0x52B, 0x52C, 0x52D, 0x52E, 0x52F};
   unsigned short filter_data4[] = {0x530, 0x531, 0x532, 0x533, 0x534, 0x535, 0x536, 0x537, 0x538, 0x539, 0x53A, 0x53B, 0x53C, 0x53D, 0x53E, 0x53F};
unsigned short filter_data5[] = {0x4E0,0x4E3,0x5E8,0x540};
//ê1ÄüÏà1Øê±Öó
   RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);//ê1ÄüPORTAê±Öó
    RCC_APB1PeriphClockCmd(RCC_APB1Periph_CAN1, ENABLE);//ê1ÄüCAN1ê±Öó

//3õê¼»ˉGPIO
   GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11| GPIO_Pin_12;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;//¸′óÃ1|Äü
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;//íÆíìêä3ö
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;//100MHz
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;//éÏà-
GPIO_Init(GPIOA, &GPIO_InitStructure);//3õê¼»ˉPA11,PA12

   //òy½Å¸′óÃó3éäÅäÖÃ
   GPIO_PinAFConfig(GPIOA,GPIO_PinSource11,GPIO_AF_CAN1); //GPIOA11¸′óÃÎaCAN1
   GPIO_PinAFConfig(GPIOA,GPIO_PinSource12,GPIO_AF_CAN1); //GPIOA12¸′óÃÎaCAN1

    //CANμ￥ÔaéèÖÃ
   CAN_InitStructure.CAN_TTCM=DISABLE; //·Çê±¼ä′￥·￠í¨DÅÄ￡ê½
    CAN_InitStructure.CAN_ABOM=DISABLE; //èí¼t×Ô¶ˉàëÏß1üàí
    CAN_InitStructure.CAN_AWUM=DISABLE;//ËˉÃßÄ￡ê½í¨1yèí¼t»½DÑ(Çå3yCAN->MCRμÄSLEEPÎ»)
    CAN_InitStructure.CAN_NART=ENABLE; //½ûÖ1±¨ÎÄ×Ô¶ˉ′«Ëí
    CAN_InitStructure.CAN_RFLM=DISABLE; //±¨ÎÄ2»Ëø¶¨,DÂμÄ¸2¸Ç¾éμÄ
    CAN_InitStructure.CAN_TXFP=DISABLE; //óÅÏè¼¶óé±¨ÎÄ±êê¶·û¾ö¶¨
    CAN_InitStructure.CAN_Mode= CAN_Mode_Normal;    //Ä￡ê½éèÖÃ
    CAN_InitStructure.CAN_SJW=CAN_SJW_1tq; //ÖØDÂí¬2½ìøÔ¾¿í¶è(Tsjw)Îatsjw+1¸öê±¼äμ￥Î» CAN_SJW_1tq~CAN_SJW_4tq
    CAN_InitStructure.CAN_BS1=CAN_BS1_7tq; //Tbs1·¶Î§CAN_BS1_1tq ~CAN_BS1_16tq
    CAN_InitStructure.CAN_BS2=CAN_BS2_6tq;//Tbs2·¶Î§CAN_BS2_1tq ~ CAN_BS2_8tq
    CAN_InitStructure.CAN_Prescaler=6;  //·ÖÆμÏμêy(Fdiv)Îabrp+1
    CAN_Init(CAN1, &CAN_InitStructure); // 3õê¼»ˉCAN1

//ÅäÖÃ1yÂËÆ÷
   CAN_FilterInitStructure1.CAN_FilterNumber=0;    //1yÂËÆ÷0
    CAN_FilterInitStructure1.CAN_FilterMode=CAN_FilterMode_IdMask;
    CAN_FilterInitStructure1.CAN_FilterScale=CAN_FilterScale_32bit; //32Î»
    CAN_FilterInitStructure1.CAN_FilterIdHigh=filter_data1[0] << 5;////32Î»ID
    CAN_FilterInitStructure1.CAN_FilterIdLow=0x0000;

   mask =0xff0;                   //

    CAN_FilterInitStructure1.CAN_FilterMaskIdHigh= (mask << 5);//32Î»MASK
    CAN_FilterInitStructure1.CAN_FilterMaskIdLow=0x0000 | 0x02;

   CAN_FilterInitStructure1.CAN_FilterFIFOAssignment=CAN_Filter_FIFO0;//1yÂËÆ÷01Øáaμ½FIFO0
    CAN_FilterInitStructure1.CAN_FilterActivation=ENABLE; //¼¤»î1yÂËÆ÷0
    CAN_FilterInit(&CAN_FilterInitStructure1);//ÂË2¨Æ÷3õê¼»ˉ

//ÅäÖÃ1yÂËÆ÷
   CAN_FilterInitStructure2.CAN_FilterNumber=1;    //1yÂËÆ÷1
    CAN_FilterInitStructure2.CAN_FilterMode=CAN_FilterMode_IdMask;
    CAN_FilterInitStructure2.CAN_FilterScale=CAN_FilterScale_32bit; //32Î»
    CAN_FilterInitStructure2.CAN_FilterIdHigh=filter_data2[0] << 5;////32Î»ID
    CAN_FilterInitStructure2.CAN_FilterIdLow=0x0000;

   mask =0xff0;                   //

    CAN_FilterInitStructure2.CAN_FilterMaskIdHigh= (mask << 5);//32Î»MASK
    CAN_FilterInitStructure2.CAN_FilterMaskIdLow=0x0000 | 0x02;

   CAN_FilterInitStructure2.CAN_FilterFIFOAssignment=CAN_Filter_FIFO0;//1yÂËÆ÷01Øáaμ½FIFO0
    CAN_FilterInitStructure2.CAN_FilterActivation=ENABLE; //¼¤»î1yÂËÆ÷0
    CAN_FilterInit(&CAN_FilterInitStructure2);//ÂË2¨Æ÷3õê¼»ˉ

//ÅäÖÃ1yÂËÆ÷
   CAN_FilterInitStructure3.CAN_FilterNumber=2;    //1yÂËÆ÷2
    CAN_FilterInitStructure3.CAN_FilterMode=CAN_FilterMode_IdMask;
    CAN_FilterInitStructure3.CAN_FilterScale=CAN_FilterScale_32bit; //32Î»
    CAN_FilterInitStructure3.CAN_FilterIdHigh=filter_data3[0] << 5;////32Î»ID
    CAN_FilterInitStructure3.CAN_FilterIdLow=0x0000;

   mask =0xff0;                   //

    CAN_FilterInitStructure3.CAN_FilterMaskIdHigh= (mask << 5);//32Î»MASK
    CAN_FilterInitStructure3.CAN_FilterMaskIdLow=0x0000 | 0x02;

   CAN_FilterInitStructure3.CAN_FilterFIFOAssignment=CAN_Filter_FIFO0;//1yÂËÆ÷01Øáaμ½FIFO0
    CAN_FilterInitStructure3.CAN_FilterActivation=ENABLE; //¼¤»î1yÂËÆ÷0
    CAN_FilterInit(&CAN_FilterInitStructure3);//ÂË2¨Æ÷3õê¼»ˉ

//ÅäÖÃ1yÂËÆ÷
   CAN_FilterInitStructure4.CAN_FilterNumber=3;    //1yÂËÆ÷3
    CAN_FilterInitStructure4.CAN_FilterMode=CAN_FilterMode_IdMask;
    CAN_FilterInitStructure4.CAN_FilterScale=CAN_FilterScale_32bit; //32Î»
    CAN_FilterInitStructure4.CAN_FilterIdHigh=filter_data4[0] << 5;////32Î»ID
    CAN_FilterInitStructure4.CAN_FilterIdLow=0x0000;

   mask =0xff0;                   //

    CAN_FilterInitStructure4.CAN_FilterMaskIdHigh= (mask << 5);//32Î»MASK
    CAN_FilterInitStructure4.CAN_FilterMaskIdLow=0x0000 | 0x02;

   CAN_FilterInitStructure4.CAN_FilterFIFOAssignment=CAN_Filter_FIFO0;//1yÂËÆ÷01Øáaμ½FIFO0
    CAN_FilterInitStructure4.CAN_FilterActivation=ENABLE; //¼¤»î1yÂËÆ÷0
    CAN_FilterInit(&CAN_FilterInitStructure4);//ÂË2¨Æ÷3õê¼»ˉ
//
//ÅäÖÃ1yÂËÆ÷
   CAN_FilterInitStructure5.CAN_FilterNumber=4;    //1yÂËÆ÷4
    CAN_FilterInitStructure5.CAN_FilterMode=CAN_FilterMode_IdList;
    CAN_FilterInitStructure5.CAN_FilterScale=CAN_FilterScale_16bit; //32Î»
    CAN_FilterInitStructure5.CAN_FilterIdHigh=filter_data5[0] << 5;////32Î»ID
    CAN_FilterInitStructure5.CAN_FilterIdLow=filter_data5[1] << 5;

    CAN_FilterInitStructure5.CAN_FilterMaskIdHigh= (filter_data5[2] << 5);//32Î»MASK
    CAN_FilterInitStructure5.CAN_FilterMaskIdLow=filter_data5[3] << 5;

   CAN_FilterInitStructure5.CAN_FilterFIFOAssignment=CAN_Filter_FIFO0;//1yÂËÆ÷01Øáaμ½FIFO0
    CAN_FilterInitStructure5.CAN_FilterActivation=ENABLE; //¼¤»î1yÂËÆ÷0
    CAN_FilterInit(&CAN_FilterInitStructure5);//ÂË2¨Æ÷3õê¼»ˉ

//下面过滤器5就不行了不清楚为什么
//    CAN_FilterInitStructure6.CAN_FilterNumber=5;    //1yÂËÆ÷1
//    CAN_FilterInitStructure6.CAN_FilterMode=CAN_FilterMode_IdList;
//    CAN_FilterInitStructure6.CAN_FilterScale=CAN_FilterScale_32bit; //32Î»
//    CAN_FilterInitStructure6.CAN_FilterIdHigh=filter_data5[2] << 5;////32Î»ID
//    CAN_FilterInitStructure6.CAN_FilterIdLow=0x0000 | CAN_ID_STD;
//
//    CAN_FilterInitStructure6.CAN_FilterMaskIdHigh= (filter_data5[3] << 5);//32Î»MASK
//    CAN_FilterInitStructure6.CAN_FilterMaskIdLow=0x0000 | CAN_ID_STD;
//
//    CAN_FilterInitStructure6.CAN_FilterFIFOAssignment=CAN_Filter_FIFO0;//1yÂËÆ÷01Øáaμ½FIFO0
//    CAN_FilterInitStructure6.CAN_FilterActivation=ENABLE; //¼¤»î1yÂËÆ÷0
//    CAN_FilterInit(&CAN_FilterInitStructure6);//ÂË2¨Æ÷3õê¼»ˉ

   CAN_ITConfig(CAN1,CAN_IT_FMP0,ENABLE);//FIFO0ÏûÏ￠1òoÅÖD¶ÏÔêDí.

    NVIC_InitStructure.NVIC_IRQChannel = CAN1_RX0_IRQn;
    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;    // Ö÷óÅÏè¼¶Îa1
    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3;          // ′ÎóÅÏè¼¶Îa0
    NVIC_InitStructure.NVIC_IRQChanne

请问各位大侠，我在stm32 CAN过滤器组编号为什么只能到4，大于5就不管用了，为什么？

一周热门更多>

相关问题

相关文章

请问各位大侠，我在stm32 CAN过滤器组编号为什么只能到4，大于5就不管用了，为什么？

打开微信“扫一扫”，打开网页后点击屏幕右上角分享按钮

一周热门 更多>

相关问题

相关文章

采纳回答

编辑标签

举报内容

检举类型

检举原因

检举说明(必填)

一周热门更多>