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DS90UB953-Q1: How to trigger two DS90UB953 internal pattern at the same time ?

Tiger Wang
Expert 1625 points
Part Number: DS90UB953-Q1
Other Parts Discussed in Thread: ALP

Dear Sir,

Is there any method to trigger two ds90ub953 internal pattern at the same time?   two ds90ub953 are forwarding to ds90ub954 by line concat mode,  in ALP information tab, Current CSI TX status show:

Pass Sts: No or yes       this bit showes No or Yes ,while running

Sync Sts: No,                 this bit showes No always, while running 

So How to trigger these two ds90ub953 to generate sync streams in the same time?

Thanks

  • 0
    TI__Mastermind 30515 points
    Hi, what sync. do you need? unfortunately UB953's pattern gen. is based on external clock. if the video pixel rate is synchronized, you can use one external clock source as both UB953's refclk.
    if it is frame sync. request, UB953 can't support it. you should use the linked imager to generate the pattern gen. based on the external frame sync. signal. thanks.

    best regards,
    Steven