DS90UB940-Q1: DS90UB940 output format not RGB888

user4823313

Part Number: DS90UB940-Q1

I set 940 output format RGB888 but used "mxc_v4l2_overlay.out -iw 1280 -ih 480 -it 0 -il 0 -ow 1440 -oh 540 -ot 0 -ol 0 -fr 30" can't get correct RGB888 . actually get GBR888

The LCD display format is BGR888

Do you have any ideas to help me ?

over 6 years ago

0 Steven(Shenzhen) Shi over 6 years ago

TI__Mastermind 30515 points

hi,
sorry we can't understand your question well, pls:
1. what is the video format that is sent to UB940?
2. UB940 is locked or not?
3. can you measure the UB940's CSI output?
4. what is the error indication in the following part of UB940?

regards,
Steven

0 user4823313 over 6 years ago in reply to Steven(Shenzhen) Shi

Prodigy 230 points

sorry
I independently Enable 940 Pattern Generator Enable by i2c setting 0x64=0x31 (Red) 0x65=0x04
Then read the CSI2 data by mxc_v4l2_overlays. Out to get not Red but green

pass lock is H

0 Steven(Shenzhen) Shi over 6 years ago in reply to user4823313

TI__Mastermind 30515 points

you should set the 0x64[2] to enable the color bar. pls check reg. 0x64/0x65 in UB940 datasheet page63 and page64.

regards,
Steven

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DS90UB940-Q1: DS90UB940 output format not RGB888