ADV7280A-M MIPI output abnormal

Dear Specialist,

       We've debugging ADV7280A-M for month. Now we can get MIPI output following the web documents guidance. However, seems the image is mirror or need to be rotated.

Can you advice how to correct the image. Does modify any register can help, or it can only be solved from MCU side. 

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    •  Analog Employees 
    on Nov 23, 2020 10:24 AM 3 months ago in reply to songyantao

    Hi,

      But in your shared script seems, you have added one more delay before ADV728x chip reset.

      Please note that As per expert comments "Two 10ms waits are overly conservative.  The first reset can occur as soon as the power rails become stable with a pulse width of ~1ms.  The hardware reset just pushes all the registers to their default state.
    The second software reset needs ~1ms for all registers to return to their default state.
    In reality even 1ms maybe too long, it's just a safe delay to work with.  The second reset probably does not need any delay since the actual reset ripples through faster than the I2C master can write another command.
    If you have a working system I'd experiment by removing the software reset right after the hardware reset and see if the chip operates as expected.  I have not tried this.
    The software reset can be used after power up if the system has no way to drive the hardware reset".

    Thanks,

    Poornima

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