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ADS131B04-Q1: How to prevent WREG execution when CRC fails

Joyce Gao
Expert 3200 points

Part Number: ADS131B04-Q1
Other Parts Discussed in Thread: ADS131B23-Q1

Expert,

We enable the input CRC and we know WREG will excute even if CRC fails based on datasheet statement, but if we still want to prevent such issue happens, is there any workaround? 

 

Joyce

  • 0
    TI__Mastermind 24335 points

    Hi Joyce,

    unfortunately I don't know of a workaround for how to prevent the registers to be written in this case.
    You should read back the register (using the RREG command) after you have written a register to determine what was written.

    In our successor device, ADS131B23-Q1, for example we changed this behavior so that even a WREG command does not get executed in case of a CRC fault.

    Regards,
    Joachim Wuerker