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IWRL6432BOOST: Interrupt occurring while accessing rangeProfile array

Sreekesh Giri
Prodigy 130 points
Part Number: IWRL6432BOOST

Hi,

I was trying to access the range profile values like shown below.

numDetectedPoints = 0;
memset((void *)&outParmsCfar, 0, sizeof(DPU_CFARProcHWA_OutParams));
outParmsCfar.rangeProfile = gMmwMssMCB.rangeProfile;
outParmsCfar.detObjOut = gMmwMssMCB.cfarDetObjOut;
outParmsCfar.detObjIndOut = gMmwMssMCB.dpcObjIndOut;
outParmsCfar.detObjOutMaxSize = MAX_NUM_DETECTIONS;
outParmsCfar.detRngDopList = gMmwMssMCB.detRngDopList;
printf("LINE = %d Before CFAR\n",__LINE__);

retVal = DPU_CFARProcHWA_process(gMmwMssMCB.cfarProcDpuHandle,
&gMmwMssMCB.detMatrix,
&gMmwMssMCB.cfarRunTimeInputParams,
&outParmsCfar);
double data[34];
float output[2];

for(int i = 0; i<34; i++)
data[i]=(double)outParmsCfar.rangeProfile[i];

But an ISR is occurring while entering the for loop. Can anyone give an idea about how I can access the values in outParmsCfar.rangeProfile or gMmwMssMCB.rangeProfile.


Regards,
Sreekesh Giri
  • +1
    TI__Expert 8802 points

    Hi Sreekesh,

    Have you tried placing your for loop elsewhere in that section of the code? Can you provide a little more background for what you are trying to do?

    Also are you running in CCS Debug? Have you tried stepping through the code at all?

    Looking forward to your response!

    Regards,

    Tim

  • 0 in reply to Tim Henderson
    Prodigy 130 points

    Hey TIm

    I tried to memcpy the contents in outParmsCfar.rangeProfile still the same situation is happening the program is waiting in while loop as shown below while I paused the execution,

    My need is just to access the values in outParmsCfar.rangeProfile and convert it from uint32_t to float and use this value for a classification function.

    You can see the debug window also they are showing some ISR handlers right. When I checked this outParmsCfar.rangeProfile it is in L3 RAM and why it is not able to access the values inside it for a local variable. ???

    Regards,

    Sreekesh Giri

  • 0 in reply to Tim Henderson
    Prodigy 130 points

    Hi Tim,
    My issue got resolved.

    volatile uint32_t gDebugTargetCode = 0;

    by changing  the above variable to one like shown below.

    volatile uint32_t gDebugTargetCode = 1;

    in mmwave_demo. There is a description of the variable as 

    /* In order to debug target code (set brake points, step over,...) set this variable below to 1 in CCS

    * expression window. It will prevent ISR mmwDemoFrameStartISR from forcing the code to stop */.

    Regards,

    Tim.