TDA2PXEVM: TDA2px Workaround for YUV422 over discrete sync interface

Neil29

Part Number: TDA2PXEVM

Hello Community,

Basically I want to get BT.1120 output. Typically BT1120 output is used for YUV output. But I think there is a workaround, DSS supports RGB565 output with discrete sync interface. If input YUV data is treated as RGB565, by disabling all pixel processing blocks inside DSS and can get YUV422 over discrete sync interface.

But I dont have any information about this workaround. If you have information about the workaround on getting YUV422 output please let me know.

Thanks and Regards,

Neil

over 7 years ago

0 Rishabh Garg over 7 years ago

TI__Guru 55685 points

Hi Neil,

Please see www.ti.com/.../sprac23a.pdf

Regards,
Rishabh

0 Neil29 over 7 years ago in reply to Rishabh Garg

Intellectual 470 points

Hello Rishabh,

I have use this workaround and now getting YUV422 at output. How it will be known if the output format is BT1120 or BT656.

Regards,
Neil

0 Rishabh Garg over 7 years ago in reply to Neil29

TI__Guru 55685 points

Hi Neil,

In this case output format is RGB565 discrete sync.
BT656/BT1120 is embedded sync output.

Regards,
Rishabh

0 Neil29 over 7 years ago in reply to Rishabh Garg

Intellectual 470 points

Ok I got it. Typically, it is 16bit output interface, then it is BT1120 and if it is 8bit, then BT656.

Neil

0 Rishabh Garg over 7 years ago in reply to Neil29

TI__Guru 55685 points

Hi Neil,

Yes this is correct. I suggest you check the appropriate standards specification documents for details.

Regards,
Rishabh

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TDA2PXEVM: TDA2px Workaround for YUV422 over discrete sync interface