MCX Microcontrollersのトピック回复： How set KW38 enter CANFD model?

How set KW38 enter CANFD model?

leonordo — Tue, 27 Feb 2024 08:54:44 GMT

Why do I set the CANFD mode of KW38 according to the official routine, but still use the normal CAN mode to send data every time? Here is my code

回复： How set KW38 enter CANFD model?

leonordo — Tue, 27 Feb 2024 08:55:49 GMT

hal_can_frame_t hal_can_frame;

flexcan_fd_frame_t CANFDframe;

flexcan_mb_transfer_t CANFDtxXfer;

flexcan_mb_transfer_t CANFDrxXfer;

int main(void)

{

hal_can_param_t param;

static uint8_t CANFDSendCount;

// memset(&CANFDframe,0,sizeof(flexcan_fd_frame_t));

uint8_t ebuff[10]={0x01,0x02,0x03,0x04,0x00,0x05,0x06,0x07,0x08,0x09};

/* Initialize board hardware. */

BOARD_InitPins();

BOARD_BootClockRUN();

BOARD_InitDebugConsole();

//CAN过滤ID

PRINTF("-------INT start-------");

// }

//init函数

#if 0

HAL_CANInit(instance,&param);

#else

FLEXCAN_GetDefaultConfig(&flexcanConfig);

flexcanConfig.clksrc=kFLEXCAN_ClkSrcPeri;

flexcan_timing_config_t timing_config;

memset(&timing_config, 0, sizeof(flexcan_timing_config_t));

if (FLEXCAN_FDCalculateImprovedTimingValues(flexcanConfig.baudRate, flexcanConfig.baudRateFD, EXAMPLE_CAN_CLK_FREQ,

&timing_config))

{

/* Update the improved timing configuration*/

memcpy(&(flexcanConfig.timingConfig), &timing_config, sizeof(flexcan_timing_config_t));

}

else

{

PRINTF("No found Improved Timing Configuration. Just used default configuration\r\n\r\n");

}

FLEXCAN_FDInit(EXAMPLE_CAN, &flexcanConfig, EXAMPLE_CAN_CLK_FREQ, BYTES_IN_MB, true);

FLEXCAN_TransferCreateHandle(EXAMPLE_CAN, &flexcanHandle, flexcan_callback, NULL);

FLEXCAN_SetRxMbGlobalMask(EXAMPLE_CAN, FLEXCAN_RX_MB_STD_MASK(0x123, 0, 0));

mbConfig.format = kFLEXCAN_FrameFormatStandard;

mbConfig.type = kFLEXCAN_FrameTypeData;

mbConfig.id = FLEXCAN_ID_STD(0x123);

FLEXCAN_SetFDRxMbConfig(EXAMPLE_CAN, RX_MESSAGE_BUFFER_NUM, &mbConfig, true);

FLEXCAN_SetFDTxMbConfig(EXAMPLE_CAN, TX_MESSAGE_BUFFER_NUM, true);

#endif

while(1)

{

// if((param.isEnableCANFD == true))

// {

CANFDframe.id = FLEXCAN_ID_STD(0x321);

CANFDframe.format = kFLEXCAN_FrameFormatStandard;

CANFDframe.type = kFLEXCAN_FrameTypeData;

CANFDframe.length = 10;

CANFDframe.brs = 1;

CANFDtxXfer.mbIdx = TX_MESSAGE_BUFFER_NUM;

CANFDtxXfer.framefd = &CANFDframe;

// FLEXCAN_TransferFDSendBlocking(EXAMPLE_CAN,TX_MESSAGE_BUFFER_NUM,&CANFDframe);

FLEXCAN_TransferFDSendNonBlocking(EXAMPLE_CAN, &flexcanHandle, &CANFDtxXfer);

CANFDSendCount++;

while (!txComplete)

{

};

txComplete = false;

CANFDrxXfer.mbIdx = RX_MESSAGE_BUFFER_NUM;

CANFDrxXfer.framefd = &CANFDframe;

while (!rxComplete)

{

FLEXCAN_TransferFDReceiveNonBlocking(EXAMPLE_CAN, &flexcanHandle, &CANFDrxXfer);

};

rxComplete = false;

PRINTF("Rx MB ID: 0x%3x, Rx MB data: 0x%x, Time stamp: %d\r\n", CANFDframe.id >> CAN_ID_STD_SHIFT,CANFDframe.dataByte0, CANFDframe.timestamp);

// }

}

回复： How set KW38 enter CANFD model?

Christine_Li — Tue, 27 Feb 2024 10:46:37 GMT

Hi, @leonordo

Can you please let me know your SDK version and which example are you referring?

Best regards,

Christine.

回复： How set KW38 enter CANFD model?

leonordo — Fri, 01 Mar 2024 01:56:15 GMT

hi,I have resolved this issue because my KW38 library function was modified by a previous engineer.

May I ask you a question about the CAN of KW38 or S32K144? I know it has CAN DMA reception function, but does it have CAN DMA transmission function?

回复： How set KW38 enter CANFD model?

Christine_Li — Tue, 05 Mar 2024 11:29:19 GMT

Hi, @leonordo

Thanks for your feedback.

We always suggest to track one issue with one ticket.

Based on the original issue has been resolved.

For the new queries, can you please close this ticket and create a new one to us?

Sorry for the inconvenience to you and thank you for your corporation.

Best regards,

Christine.

回复： How set KW38 enter CANFD model?

Christine_Li — Thu, 07 Mar 2024 06:45:36 GMT

Hi, @leonordo

Thanks for your feedback.

We always suggest to track one issue with one ticket.

Based on the original issue has been resolved.

For the new queries, can you please close this ticket and create a new one to us?

Sorry for the inconvenience to you and thank you for your corporation.

Best regards,

Christine.