DS90UH949-Q1: UH949

Harvey,
Can you try the UB949's internal pattern test? it seems the timing is NOT correct in your case. What is your video format?

best regards,
Steven

Hi, Steven,
According to panel spec, our panel resolution is 1280 X 272, but we use USB2ANY and directly send internal pattern through UH949->UH948 to panel,
it's looks normal, but when we use HDMI input(DVD player) and pattern generator(choiced 576i/720P/1080i), the abnormal symptom still exist.
But, your colleague was mentioned maybe is relate about EDID setting or anything setup incorrect?
so we want to clarify firstly about UH949 and UH948 EVBs maybe something need to change( can not use EVBs default setting.
Am i right?

Thanks for reply soon.

Harvey

Harvey,
Yes, UB949 need correct EDID. the default EDID in SRAM is referred in d/s page 19. it seems the internal HDMI module can't work correctly. please check the reg. 0x0c, 0x4f, 0x50, 0x54, 0x5A-0x5F, etc.
If you use the special video format, you should set the EDID into UB949 firstly.

best regards,
Steven

Hi Steven,
I still have some question with these EVBs.
How can we change the registers?
It’s adjust by USB2ANY TOOL? Or use external EDID setting?(for your previous mail mentioned)
If is use internal EDID setting. How can I set for 1280x272(resolution), can you provide EDID sample setting to us and teach us how to setup it?
Thanks.

Hi Harvey,

please check the link https://e2e.ti.com/support/interface/high_speed_interface/f/138/t/679210 which has similar issue as yours, you can refer to it, thanks.

For the EDID of 1280x272, you can check it with the video processor vendor or the HDMI standard for correct EDID setting.

best regards,

Steven 

Harvey,
I had talked with our FAE for this. now your display panel can work with UB949's pattern generation mode. You can align with him directly and close this thread.

best regards,
Steven