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TDA4VM: about the conflict between encryption and PBIST

zhikai cai
Prodigy 10 points

Part Number: TDA4VM

On unencrypted boards, the PBIST of A72 can be executed normally

After the encryption board is replaced，There is a problem：

After the encryption on the encryption board is enabled, an exception occurs in the PBIST phase of A72 after the signature check is passed. The Log details are as follows

  • 0
    TI__Genius 9720 points

    Hi, Zhikai,

    A few questions need your further calrification:

    1. Is the encryption board you mean is HS board?

    2. Didn't see any exception in the log you shared. Could you please share a normal case to compare?

    After the image authentication, the behavior of HS silicon is same as GP. Need your help to provide more details of your tests on HS and GP boards. Thanks.

    Br, Tommy