STM32H750VBT6 CAN通信发不出来数据，求救！！！

guo6339419 · 发表于 2023-8-4 14:34:15

STM32H750VBT6移植了北极星开发板的CAN通信程序，发不出来数据，大佬们帮忙分析下

guo6339419 · 发表于 2023-8-4 14:42:32

void HAL_FDCAN_MspInit(FDCAN_HandleTypeDef* hfdcan)
{
GPIO_InitTypeDef GPIO_Initure;
RCC_PeriphCLKInitTypeDef FDCAN_PeriphClk;

__HAL_RCC_FDCAN_CLK_ENABLE();                //ê1ÄüFDCAN1ê±Öó
__HAL_RCC_GPIOB_CLK_ENABLE();          //¿aÆôGPIOAê±Öó

//FDCAN1ê±ÖóÔ′ÅäÖÃÎaPLL1Q
FDCAN_PeriphClk.PeriphClockSelection=RCC_PERIPHCLK_FDCAN;
FDCAN_PeriphClk.FdcanClockSelection=RCC_FDCANCLKSOURCE_PLL;
HAL_RCCEx_PeriphCLKConfig(&FDCAN_PeriphClk);

GPIO_Initure.Pin=GPIO_PIN_8|GPIO_PIN_9;    //PA11,12
GPIO_Initure.Mode=GPIO_MODE_AF_PP;             //íÆíì¸′óÃ
GPIO_Initure.Pull=GPIO_PULLUP;                //éÏà-
GPIO_Initure.Speed=GPIO_SPEED_FREQ_MEDIUM;    //3¬¸ßËù
GPIO_Initure.Alternate=GPIO_AF9_FDCAN1;       //¸′óÃÎaCAN1
HAL_GPIO_Init(GPIOB,&GPIO_Initure);          //3õê¼»ˉ

#if FDCAN1_RX0_INT_ENABLE
HAL_NVIC_SetPriority(FDCAN1_IT0_IRQn,1,2);
HAL_NVIC_EnableIRQ(FDCAN1_IT0_IRQn);
#endif
}

u8 FDCAN1_Mode_Init(u16 presc,u8 ntsjw,u16 ntsg1,u8 ntsg2,u32 mode)
{
FDCAN_FilterTypeDef FDCAN1_RXFilter;

//3õê¼»ˉFDCAN1
HAL_FDCAN_DeInit(&FDCAN1_Handler);                            //ÏèÇå3yòÔÇ°μÄéèÖÃ
FDCAN1_Handler.Instance=FDCAN1;
FDCAN1_Handler.Init.FrameFormat=FDCAN_FRAME_CLASSIC;          //′«í3Ä￡ê½
FDCAN1_Handler.Init.Mode=mode;                               //»Ø»·2aêÔ
FDCAN1_Handler.Init.AutoRetransmission=DISABLE;                //1Ø±Õ×Ô¶ˉÖØ′«￡¡′«í3Ä￡ê½ÏÂò»¶¨òa1Ø±Õ￡¡￡¡￡¡
FDCAN1_Handler.Init.TransmitPause=DISABLE;                   //1Ø±Õ′«êäÔYí￡
FDCAN1_Handler.Init.ProtocolException=DISABLE;                //1Ø±ÕD-òéòì3￡′|àí
FDCAN1_Handler.Init.NominalPrescaler=presc;                   //·ÖÆμÏμêy
FDCAN1_Handler.Init.NominalSyncJumpWidth=ntsjw;                //ÖØDÂí¬2½ìøÔ¾¿í¶è
FDCAN1_Handler.Init.NominalTimeSeg1=ntsg1;                   //tsg1·¶Î§:2~256
FDCAN1_Handler.Init.NominalTimeSeg2=ntsg2;                   //tsg2·¶Î§:2~128
FDCAN1_Handler.Init.MessageRAMOffset=0;                      //DÅÏ￠RAMÆ«òÆ
FDCAN1_Handler.Init.StdFiltersNbr=0;                         //±ê×¼DÅÏ￠IDÂË2¨Æ÷±àoÅ
FDCAN1_Handler.Init.ExtFiltersNbr=0;                         //à©Õ1DÅÏ￠IDÂË2¨Æ÷±àoÅ
FDCAN1_Handler.Init.RxFifo0ElmtsNbr=1;                         //½óêÕFIFO0ÔaËØ±àoÅ
FDCAN1_Handler.Init.RxFifo0ElmtSize=FDCAN_DATA_BYTES_8;       //½óêÕFIFO0ÔaËØ′óD¡￡o8×Ö½ú
FDCAN1_Handler.Init.RxBuffersNbr=0;                            //½óêÕ»o3å±àoÅ
FDCAN1_Handler.Init.TxEventsNbr=0;                            //·￠ËíêÂ¼t±àoÅ
FDCAN1_Handler.Init.TxBuffersNbr=0;                            //·￠Ëí»o3å±àoÅ
FDCAN1_Handler.Init.TxFifoQueueElmtsNbr=1;                   //·￠ËíFIFODòáDÔaËØ±àoÅ
FDCAN1_Handler.Init.TxFifoQueueMode=FDCAN_TX_FIFO_OPERATION; //·￠ËíFIFODòáDÄ￡ê½
FDCAN1_Handler.Init.TxElmtSize=FDCAN_DATA_BYTES_8;             //·￠Ëí′óD¡:8×Ö½ú
if(HAL_FDCAN_Init(&FDCAN1_Handler)!=HAL_OK) return 1;          //3õê¼»ˉFDCAN

//ÅäÖÃRXÂË2¨Æ÷
FDCAN1_RXFilter.IdType=FDCAN_STANDARD_ID;                      //±ê×¼ID
FDCAN1_RXFilter.FilterIndex=0;                               //ÂË2¨Æ÷Ë÷òy
FDCAN1_RXFilter.FilterType=FDCAN_FILTER_MASK;                //ÂË2¨Æ÷ààDí
FDCAN1_RXFilter.FilterConfig=FDCAN_FILTER_TO_RXFIFO0;          //1yÂËÆ÷01Øáaμ½FIFO0
FDCAN1_RXFilter.FilterID1=0x0000;                            //32Î»ID
FDCAN1_RXFilter.FilterID2=0x0000;                            //èç1ûFDCANÅäÖÃÎa′«í3Ä￡ê½μÄ»°￡¬ÕaàïêÇ32Î»ÑúÂë
if(HAL_FDCAN_ConfigFilter(&FDCAN1_Handler,&FDCAN1_RXFilter)!=HAL_OK) return 2;//ÂË2¨Æ÷3õê¼»ˉ
HAL_FDCAN_Start(&FDCAN1_Handler);                            //¿aÆôFDCAN
HAL_FDCAN_ActivateNotification(&FDCAN1_Handler,FDCAN_IT_RX_FIFO0_NEW_MESSAGE,0);
return 0;
}

int main(void)
{
sys_cache_enable();                /* ′ò¿aL1-Cache */
HAL_Init();                      /* 3õê¼»ˉHAL¿a */
sys_stm32_clock_init(240, 2, 2, 4); /* éèÖÃê±Öó, 480Mhz */
delay_init(480);                   /* Ñóê±3õê¼»ˉ */
usart_init(115200);                /* ′®¿ú3õê¼»ˉÎa115200 */
led_init();                      /* 3õê¼»ˉLED */
FDCAN1_Mode_Init(10,8,31,8,FDCAN_MODE_NORMAL);
while (1)
{
   FDCAN1_Send_Msg(canbuf,FDCAN_DLC_BYTES_8);
}
}

你的蓝朋友 · 发表于 2023-8-8 11:09:58

用stm Gubmax直接生成的代码试试

guo6339419 · 发表于 2023-8-8 13:16:14

你的蓝朋友发表于 2023-8-8 11:09
用stm Gubmax直接生成的代码试试

int main(void)
{
  SCB_EnableICache();
  SCB_EnableDCache();
  HAL_Init();
  SystemClock_Config();
  MX_GPIO_Init();
  MX_FDCAN1_Init();
  MX_FDCAN2_Init();
HAL_FDCAN_MspInit(&hfdcan1);
FDCAN1_Config();
  while (1)
  {
TxData[0]=1;
TxData[1]=2;
TxData[2]=3;
TxData[3]=4;
TxData[4]=5;
TxData[5]=6;
TxData[6]=7;
TxData[7]=8;
HAL_FDCAN_AddMessageToTxFifoQ(&hfdcan1,&TxHeader,TxData);
HAL_Delay(1);

HAL_Delay(500);

  }
  /* USER CODE END 3 */
}

试过了还是不行，可否加个联系方式帮我看一下代码呢？