TDA2HG: MCSPI send 96byte will mismatch

Part Number: TDA2HG

Hi,

My vsionSDK verision: 3.05.

When I send and receive MCSPI on interrupt and slave mode with 96byte pre-frame. The receive frame always fine. But send frame will always mismatch.

If I send:

frame1: 1, 1, 1, ......, 1, 1,1;

frame2: 2, 2, 2, ......, 2, 2, 2;

frame3: 3, 3, 3, ......, 3, 3, 3;

But the master will get:

frame1: 1, 1, 1, ....., 2, 2, 2;(last 32 byte will become 2)

frame2: 2, 2, 2, ......, 3, 3, 3; (last 32 byte will become 3)

And I just called API :

Int32 Utils_mcspiReadWrite(void * fd, UInt8 *pRxBuff,UInt8 *pTxBuff, UInt16 len)
{
    UInt32                    size             = 0U;
    Int                       status           = IOM_COMPLETED;
    Mcspi_DataParam           issueDataparam   = {0};
    Mcspi_DataParam           reclaimDataparam = {0};
    Ptr                       pReclaimDataParam;
    Int32                     retVal   = SYSTEM_LINK_STATUS_SOK;
    Utils_mcspiCommHandle commHndl = (Utils_mcspiCommHandle) fd;
    commHndl->mcspiIoPrms.timeout = 1000 * 1000;

    issueDataparam.inBuffer = (UInt8 *) pRxBuff;
    issueDataparam.outBuffer = (UInt8 *) pTxBuff;
    issueDataparam.bufLen   = (UInt32) len;
    if ((UInt32)len > 0x1000U)
    {
        /* Something is wrong if this condition is met */
        Vps_printf(" UTILS_MCSPI: Too large read requested!! Length = %x\r\n",
                  (UInt32)len);
        retVal = SYSTEM_LINK_STATUS_EFAIL;
    }
    if (retVal == SYSTEM_LINK_STATUS_SOK)
    {
        size = (UInt32)len;

        /* Issue the first & second empty buffers to the input stream */
        status = GIO_issue(commHndl->mcspiHandle, &issueDataparam, size,
                           NULL);

        if ((status != IOM_PENDING) && (status != IOM_COMPLETED))
        {
            Vps_printf(" UTILS_MCSPI: Failed to issue empty buffer to stream!!\r\n");
        }
        /* Reclaim is done after every issue and buffers are not primed. If
         * the buffers are primed next transfer is initialized as soon as
         * the first one is completed. We wont be able to ensure transfer
         * initializaton on Slave before master for second buffer
         */
        pReclaimDataParam = (Ptr) & reclaimDataparam;
        status =
            GIO_reclaim((GIO_Object *) commHndl->mcspiHandle,
                        (Ptr *) &pReclaimDataParam,
                        NULL,
                        NULL);
        if (IOM_COMPLETED != status)
        {
            Vps_printf(" UTILS_MCSPI: SPI Read/Write Failed: %d\r\n", status);
            retVal = SYSTEM_LINK_STATUS_EFAIL;
        }
        else
        {
            retVal = (Int32) len;
        }
    }
    return retVal;
}

And since receive is fine, I don't think it have any problem on this configure. 

Would you please give me any clue? Thanks a lot!