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DS90UB953-Q1: Pattern Generation Configuration

Amy Luo
Expert 6895 points
Part Number: DS90UB953-Q1

Hi team,

At present, the customer uses DS90UB953+DS90UB960. If he wants to configure the Pattern output on the DS90UB953 side, configure the 953 as follows according to the code example in the spec of the 953:

Expected to show 2560*720@30fps But at present, it is a black screen to directly take the output of 960 for display. What may be the reason?

Best Regards,

Amy Luo

  • 0
    TI__Mastermind 18755 points

    Hello Amy,

    Have you tried using the patgen on the 960 side?  It would be good to know what side of the link the problem is on.  If you are able to pull all the registers from the 960 as well I would like to verify the CSI forwarding is configured correctly.  

    In the meantime what you could also check is that the 960 is receiving data by reading registers 0x73 - 0x76 for the port that 953 is connected to.  Also verify you are forwarding that data from the RX port to the correct CSI port by looking at registers 0x20 and 0x33.

    Regards,

    Nick

  • +1 in reply to Nicholas Darash
    TI__Expert 6895 points

    Hi Nick,

    Thank you very much for your help. The customer's problem has been resolved for the following reasons:

    The 953 spec only mentioned the configuration of RGB888, while the 960 was debugged on the client without confirming the color format. In fact, the pattern of YUV422 needs to be configured.

    Best Regards,

    Amy Luo