DS90UH949-Q1EVM: UH949 to UB948 display wrong color

Vickers

Part Number: DS90UH949-Q1EVM

Hi,

Computer HDMI output to DS90UH949EVM to DS90UB948 to Screen,Display anormaly. 0x22 no set 24bit Video picture

If, I set ub948 0x22(2) to 18bit Video,Display normaly (but the screen is dark),As attachment 0x22 set 18bit video picture.The color is wrong.

How could I configure？

over 7 years ago

0 Vijaya Ceekala over 7 years ago

TI__Intellectual 2930 points

Is your display panel 24 bit panel or 18 bit panel? What resolution are you sending on HDMI?

0 Vickers over 7 years ago in reply to Vijaya Ceekala

Intellectual 980 points

It's ok by color bar output.

0 Steven(Shenzhen) Shi over 7 years ago in reply to Vickers

TI__Mastermind 30515 points

please check your video source resolution and your display panel resolution, thanks.

best regards,
Steven

0 Vickers over 7 years ago in reply to Vijaya Ceekala

Intellectual 980 points

The display panel is 24 bit,Fomat RGB888.Sending on HDMI resolution is 1280 * 720.The screen resolution is 1920 * 720.How to configure?

0 Vickers over 7 years ago in reply to Steven(Shenzhen) Shi

Intellectual 980 points

Which register is the configure resolution?

0 Steven(Shenzhen) Shi over 7 years ago in reply to Vickers

TI__Mastermind 30515 points

Hi,

Sorry, DS90UB949 and DS90UB948 are SerDes, they have no video resolution translation function. You should configure the video resolution from the video generation side, and you should select the suitable display panel to match this application.

best regards,

Steven

0 Vickers over 7 years ago in reply to Steven(Shenzhen) Shi

Intellectual 980 points

Hello Steven,
The main problem is the wrong color.Is this depending on the resolution?

0 Vickers over 7 years ago in reply to Vickers

Intellectual 980 points

Does it mean that higher resolution input is required?

0 Steven(Shenzhen) Shi over 7 years ago in reply to Vickers

TI__Mastermind 30515 points

Yes, video source and video sink should match.

best regards,

Steven

0 Vickers over 7 years ago in reply to Steven(Shenzhen) Shi

Intellectual 980 points

Steven，

Thank you for your answer.It's normal by setting mode_sel0.

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DS90UH949-Q1EVM: UH949 to UB948 display wrong color