DS90UB948-Q1: How to detect UB948 HS VS?

James Zhan

Hi team,

My customer is using UB948 for display and found the video display shaking issue.

They want to check the HS, VS value on UB948 to double check the data they were to send out from SoC.

Right now they're running the setting as below picture, but found the read data is changing every second and is far away from the original display setting. They have 1920*720*60, but the read out data is not correct.

Could you please help to check and see if you have any ideas for this case?

Thanks.

over 5 years ago

0 Casey McCrea over 5 years ago

TI__Guru** 103215 points

James,

Which serializer device is being used here?

Best Regards,

Casey

0 James Zhan over 5 years ago in reply to Casey McCrea

TI__Expert 4365 points

Hi Casey,

The serializer is UB941AS.

0 Casey McCrea over 5 years ago in reply to James Zhan

TI__Guru** 103215 points

Hello James,

It seems likely that the issue would be coming from the serializer side in this case, so please follow this guide for 941AS to bringup and troubleshoot common issues especially with the DSI interface

https://www.ti.com/lit/pdf/snla356

Best Regards,

Casey

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DS90UB948-Q1: How to detect UB948 HS VS?