IWRL6432BOOST: SBL Via CAN

MCAN_RxBufElement       rxMsg;
volatile uint32_t gRxPkts = 0;

static void App_mcanIntrISR(void *arg)
{
    uint32_t intrStatus;

    intrStatus = MCAN_getIntrStatus(gMcanBaseAddr);
    MCAN_clearIntrStatus(gMcanBaseAddr, intrStatus);

    /* Could remove Tx sub-ISR function */
    if (MCAN_INTR_SRC_TRANS_COMPLETE ==
        (intrStatus & MCAN_INTR_SRC_TRANS_COMPLETE))
    {
        App_mcanIntrISRTx();
        /* Could be posted at end of sub-ISR callback */
        SemaphoreP_post(&gMcanTxDoneSem);
    }

    /* If FIFO0/FIFO1 is used, then MCAN_INTR_SRC_DEDICATED_RX_BUFF_MSG macro
     * needs to be replaced by MCAN_INTR_SRC_RX_FIFO0_NEW_MSG/
     * MCAN_INTR_SRC_RX_FIFO1_NEW_MSG respectively */
    if (MCAN_INTR_SRC_DEDICATED_RX_BUFF_MSG ==
        (intrStatus & MCAN_INTR_SRC_DEDICATED_RX_BUFF_MSG))
    {
        App_mcanIntrISRRx();
        /* Could be posted at end of sub-ISR callback */
        SemaphoreP_post(&gMcanRxDoneSem);
    }

    return;
}

static void App_mcanIntrISRTx(void)
{
    MCAN_ProtocolStatus     protStatus;

    MCAN_getProtocolStatus(gMcanBaseAddr, &protStatus);
    /* Checking for Tx Errors */
    if (((MCAN_ERR_CODE_NO_ERROR != protStatus.lastErrCode) ||
            (MCAN_ERR_CODE_NO_CHANGE != protStatus.lastErrCode)) &&
        ((MCAN_ERR_CODE_NO_ERROR != protStatus.dlec) ||
            (MCAN_ERR_CODE_NO_CHANGE != protStatus.dlec)) &&
        (0U != protStatus.pxe))
    {
            DebugP_assert(FALSE);
    }

    return;
}

static void App_mcanIntrISRRx(void)
{
    MCAN_ErrCntStatus       errCounter;
    MCAN_RxNewDataStatus    newDataStatus;
    uint32_t                bufNum, fifoNum;

    /* Checking for Rx Errors */
    MCAN_getErrCounters(gMcanBaseAddr, &errCounter);
    DebugP_assert((0U == errCounter.recErrCnt) &&
                    (0U == errCounter.canErrLogCnt));

    /* Get the new data staus, indicates buffer num which received message */
    MCAN_getNewDataStatus(gMcanBaseAddr, &newDataStatus);
    MCAN_clearNewDataStatus(gMcanBaseAddr, &newDataStatus);

    /* Select buffer and fifo number, buffer is used in this example */
    bufNum = 0U;
    fifoNum = MCAN_RX_FIFO_NUM_0;

    /* NOTE: Determine buffer offset if needed using received packets and number of packets in buffer */
    bitPos = (1U << bufNum);
    if (bitPos == (newDataStatus.statusLow & bitPos))
    {
        /* NOTE: Offset read address if needed */
        MCAN_readMsgRam(gMcanBaseAddr, MCAN_MEM_TYPE_BUF, bufNum, fifoNum, &rxMsg);
    }
    else
    {
        DebugP_assert(FALSE);
    }
    /* Message ID for terminate message? */
    if (id == SBL_CANFD_TERMINATE_MSG_ID)
    {
        gLastMsgFlag = 1;
    }

    return;
}

case SBL_CAN_RECV:
{
    uint32_t buffOffset = 0;
    uint32_t totDataLen = 0;
    while (1)
    {
        /* Wait till a new data packet is received. */
        /* NOTE: The gRxPkts can be replaced with this semaphore pend instead - though the original conditional would work too */
        SemaphoreP_pend(&gMcanRxDoneSem);
        /* Check if the terminate Message Id is received? */
        if (gLastMsgFlag != 0)
        {
            break;
        }
        buffOffset = (gPktsWrt % NUM_PKT_IN_BUFF);
        /* NOTE: Adjust flash write function to write proper size */
        Flash_write(qspiFlashHandle, flashAddr, (uint8_t *)&rxMsg.data[buffOffset * 64], 64);
        /* Increment the Flash pointer. */
        flashAddr += 64;
        /* Increment the number of packets written. */
        /* NOTE: This does not needed to be used but I left it here in case you want to use it for something else*/
        gPktsWrt++;
        totDataLen += 64;
    }
    dataLength = totDataLen;
    goto exitGetFile;
}