TDA2EXEVM: HDMI Output on Cascade TDA2 Board

Khai Trinh

Part Number: TDA2EXEVM

Hi,

I have a need to use HDMI local display to show RDM data output of 2D-FFT. I have created a usecase and modified the PkDetect Alg to get a copy of one of the 4 EVEs' 2D-FFT output and create a VideoFrameBuffer to output the RDM data to fftHeatMap for local display. As far as I know the usecase runs without any issue but plugging the HDMI output from the TDA2 cascade board to a monitor showed no HDMI output. It didn't look like there is even sync signal detected by the monitor. Normally when monitor picks up a sync, it has a very gent click to kick the monitor active and show the content. There isn't such a thing on this cascade board.

Was the HDMI connector on the board designed to be used with usecase?

Thanks,

--Khai

over 5 years ago

0 Brijesh Jadav over 5 years ago

TI__Guru**** 475325 points

Khai,

Are you using on-chip HDMI or off-chip HDMI?

Rgds,

Brijesh

0 Khai Trinh over 5 years ago in reply to Brijesh Jadav

Genius 4140 points

HI Brijesh,

I using the TDA2 Cascade EVM board from TI at the moment. I am not sure what you are referring to. This is not a custom board.

Thanks,

--Khai

0 Stanley Liu over 5 years ago in reply to Khai Trinh

TI__Guru 50045 points

Hi Khai,

We didn't have any customer requirement to support HDMI output on Cascade EVM so it was not tested.

I tried once to see if it worked out-of-box with SDK and it didn't.

It will require some effort to bring this interface up but we don't have plan to do this.

Regards,
Stanley

0 Khai Trinh over 5 years ago in reply to Stanley Liu

Genius 4140 points

Hi Stanley,

We reply on local HDMI output to realize the working of the processing chain. As you know our processing chain will be nothing like the MIMO or TxBF usecase provided where it interacts with Matlab script to render result on PC. Ours usecase is high performance and realtime. Can this feature be considered and make available as there is an HDMI output connector on the board after all. If not this SDK version, the upcoming SDK version.

Thanks,

--Khai

0 Stanley Liu over 5 years ago in reply to Khai Trinh

TI__Guru 50045 points

Hi Khai,

There is no plan for any more SDK release except for critical bug fixes.

Main reason we descoped HDMI output was we don't have GPU support to display matlab like plot to HDMI output.

Having the radar object data transferred to PC for rendering is the only option.

Regards,

Stanley

0 Asher Farooqui over 5 years ago in reply to Stanley Liu

Expert 1821 points

Hi Stanley,

As of now, the Processor SDK RADAR v03.08 is not compatible with the 2243 Cascade board. If there are no plans for new releases, how is TI planning to address this issue?

0 Khai Trinh over 5 years ago in reply to Asher Farooqui

Genius 4140 points

In Addition, there is a GPU HW Block in the TDA2 just like the TDA3. If TDA3 can have local HDMI functionality, TDA2 is even a more powerful chip, it should be able to do the same. It's all about TI commitment to supporting it in SDK.

--Khai

0 Stanley Liu over 5 years ago in reply to Khai Trinh

TI__Guru 50045 points

On TDA3, it is just drawing bitmap on DSP or M4.

Same function can run on TDA2.

However, HDMI functionality is not support on Cascade EVM.

0 Asher Farooqui over 5 years ago in reply to Stanley Liu

Expert 1821 points

So you're saying drawing bitmaps cannot be done on the Cascade DSP EVM?

0 Stanley Liu over 5 years ago in reply to Asher Farooqui

TI__Guru 50045 points

Bitmap drawing functions can be called on DSP or M4 but we didn't bring up HDMI interface for display.

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TDA2EXEVM: HDMI Output on Cascade TDA2 Board