IWR6843ISK-ODS: [ITB4.2.0 - 3D people counting] How to access to ADC buffer and L3 memory to see the data just before and after 1D fft?

Hi Justin,

Thanks to your explanation, I managed to access to the radar cube data.

However, I want to get ADC buffer data and radar cube data at the same time so that I can compare the input and output of 1D FFT.

I put the breakpoint at line 2287 in DPU_RangeProcHWA_process function to retrieve ADC buffer data from rangeProcObj->ADCdataBuf at the timing of 1D FFT completion for every chirps. But due to this breakpoint, it will terminate the program before it reaches DSP DPC by spitting out the log below.

({module#9}: "C:/ti/mmwave_industrial_toolbox_4_2_0/labs/common/src/dpc/objdetrangehwa/src/objdetrangehwa.c", line 644: error {id:0x10000, args:[0x1c99c, 0x1c99c]}

xdc.runtime.Error.raise: terminating execution)

Is there any good way to achieve what I want?

Best regards,

Fields

Hi Fields,

The device is throwing the error because it keeps receiving data from the front end, which generates an interrupt - it wants to run, but can't because it is in debug mode. I will get back with a definite answer next week.

Regards,

Justin

Hi Fields,

First, why do you want to compare the 1D FFT on device vs off device? Is there an artifact you are seeing? We may have seen this before.

Second, potential solution:

1. Comment line 644 in the range hwa dpc and recompile the lab.
   1. This is just an assert to check if the device has overrun the allotted time to process the data, just remember to re-enable this after you are done with this
2. There is another assert in the DSS firmware - when you run again, it should get called if the MSS assert is disabled. You can also comment out this assert.

With the above two completed, you should be able to step through the code and compare. the outputs.

Regards,

Justin