FFTC output wrong result or no responce

Is the original project (a delivered in the PDK package) working? What change(s) did you make to the original project?

Hi,

The original project is working.  I made some changes to it and it pop's up the errors described above.

As we discuss in the previous topics I'am trying to rewrite the code in the way without using Tasks.  So the changes I have made:

1) Delete the Task creation strings and runing just like this test_fftc(CSL_FFTC_A);

    fftcInstNum = CSL_FFTC_A;

    Task_Params_init(&testTaskParams);

    testTaskParams.arg0 =   fftcInstNum;

    /* Create the FFTC test task */

    Task_create((Task_FuncPtr)&test_fftc, &testTaskParams, NULL);

2) changed some fields in the rxCfg structure:

   rxCfg.cppiRxQNum                        =   662;

   rxCfg.bBlockOnResult                    =   0;

   rxCfg.bUseInterrupts                    =   0;

3) These three left as they are, since I don't fully understand from the document how to pass from accumulation to Pend in the Rx config. (And without them it doesn't work. I understand it could be a mistake here.) As I understand all given config concern only the accumulation queue, and they works only with tasks. Is there any info about Rx configuration for Queue Pend queues?

   rxCfg.bManageAccumList                  =   1;      /* Let driver do the Accum Management */

rxCfg.accumCfg.drvCfg.bEnablePacing    = 0; /* Disable pacing */

rxCfg.accumCfg.drvCfg.intThreshold = 1; /* Set interrupt threshold to 1 */

rxCfg.accumCfg.drvCfg.accChannelNum = 4;

3. comment the Fftc_getDeviceAccumulatorConfig since I'am not using accum queue's.

//    Fftc_getDeviceAccumulatorConfig (CSL_FFTC_A, &rxCfg.accumCfg.drvCfg.accChannelNum, &rxCfg.cppiRxQNum);

4. Changed the register_rx_interrupts function to catch the pend signal

   Hwi_Params hwiParams;

   Error_Block eb;

   Hwi_Params_init(&hwiParams);

   Error_init(&eb);

   // set the argument you want passed to your ISR function

   hwiParams.arg = 1;

   // set the event id of the peripheral assigned to this interrupt

   hwiParams.eventId = 134;

   hwiParams.maskSetting = Hwi_MaskingOption_SELF;

   myHwi = Hwi_create(8, fftcIsr, &hwiParams, &eb);

   if (Error_check(&eb)) {

       // handle the error

   }

void fftcIsr(UArg arg)
{
Fftc_osalLog ("FFTC result is ready %d\n", arg);
}

But this Hwi doesn't run, I don't get any error messages about it.

The standard program with these changes run until this section and then wait forever if rxCfg.bBlockOnResult bit is set to 1.

 /* Submit the FFT request for processing */

if (Fftc_txSubmitRequest (hTxObj,
hRequestInfo,
reqBufferLen) < 0)
{
Fftc_osalLog ("[Core %d]: Unable to submit request \n", coreNum);
goto error;
}
else
{
#ifdef FFTC_TEST_DEBUG
Fftc_osalLog ("Submitted request %d successfully \n", pktCounter);
#endif
}

/* -------------------------------------
* Wait on FFT result and verify Result
* -------------------------------------
*/
#ifdef FFTC_TEST_DEBUG
Fftc_osalLog ("\n[Core %d]: Waiting for Result ... \n", coreNum);
#endif