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DS90UB928Q-Q1: Question about register 0x41(Link Error Count)

chen zh
Intellectual 300 points

Part Number: DS90UB928Q-Q1

Hi TI:

      How do we get the error info? Which register? I can't find it.... Thanks.

BRs,

Arvin

  • 0
    TI__Genius 12866 points

    Hi Arvin,

    It doesn't report number of error, rather it allows you to set a threshold on when lock will be lost. 

    If error count is enabled Deserializer lose lock once error count reaches threshold if disabled Deserializer loose lock with one error.

    Best Regards,

    Charley Cai

  • 0 in reply to Charley Cai
    Intellectual 300 points

    Hi Charley:

        1. How to recovery when lose lock?

        2. Can we use I2c to access UB948 at this time?

  • 0 in reply to chen zh
    TI__Genius 12866 points

    Hi Arvin,

    1. It depends on different factors. The 948 will always attempt to relock by increasing EQ values. If the link is lost due to physical issues like cable disconnect, recovery will require manual intervention. If the lose of lock is due to sudden interference, the 948 will try lock by itself. You can also reset the devices with a local MCU at the 948 side. 

    2. If the link is lost, you cannot access 948 through I2C master located at the serializer side. 

    Best Regards,

    Charley Cai