Compiler/IWR6843ISK-ODS: how to bypass the HWA, disable the FFT engine and windowing engine in HWA

tim zhao

Part Number: IWR6843ISK-ODS
Other Parts Discussed in Thread: MMWAVE-SDK

Tool/software: TI C/C++ Compiler

Hello TI expert

We use mmwave_sdk_68xx_dsp_mss & mmwave_sdk_68xx_dsp_dss demo, sdk verison is mmwave_sdk_03_04_00_03.

The range FFT processing is done in the HWA. Do we have any compile option to change it to DSP? Then we can use DSP to do all the signal processing.

Then we can get the ADC RAW data save in L3.

over 4 years ago

0 Vaibhav Mahimkar over 4 years ago

TI__Mastermind 23725 points

Hello

This may need code change on your part and not just compile level change:

Please check the DSP version of the code to see how data can be moved to DSP memory area.

Once there you would have to reprogram the DSP to implement FFT

Let us know if you can

Thank you,

Vaibhav

0 tim zhao over 4 years ago in reply to Vaibhav Mahimkar

Intellectual 981 points

Hi Vaibhav

The hwa and dsp processing flow seems quite complicated, for us it is not so easy;
If you can wait for your support, I would really appreciate it.

0 Nitin Sakhuja over 4 years ago in reply to tim zhao

TI__Mastermind 30405 points

Hello,

MMWAVE-SDK does not include a DSP only mmw demo for xWR6843 but it includes a DSP only demo for xWR1642 at the following path: C:\ti\mmwave_sdk_03_04_00_03\packages\ti\demo\xwr16xx\mmw

You can migrate it to xWR6843 following the step by step instructions provided in the following app note. Please follow section 2.3.4 for migrating an application from xWR1642 to xWR6843 ES2.0

Migrating to xWR68xx and xWR18xx Millimeter Wave Sensors

Regards

-Nitin

0 tim zhao over 4 years ago in reply to Nitin Sakhuja

Intellectual 981 points

Hello, Nitin

Thanks for your information, i will try it.

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Compiler/IWR6843ISK-ODS: how to bypass the HWA, disable the FFT engine and windowing engine in HWA