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DS90UB941AS-Q1: DS90UB941AS-Q1

Hale Tan
Expert 3770 points
Part Number: DS90UB941AS-Q1

Hi, team!

Could you help me find out what error is it if bit4 in above register is 0 when the screen becomes blurred and indistinct (like color vertical stripes) and bit4 is 1 after reset.

Then we test many times and bit4 is 0 after reset when it works normally.

Could you explain this phenomenon?

  • 0
    TI__Mastermind 22946 points

    Hi Hale,

    The bit indicates that the link is lost if the bit is 1, and the bit is normal if the bit is 0. There are several reasons for screen problems. Please refer to the checklist below.

    • Incorrect video timing, bpp, polarities
    • Initialization script issues or high level mode/configuration issues
    • Verify system / script bring-up flow (local PG, SER PG, end-to-end)

    Regards,

    Josh