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Verifying the Built-in Self-Test (BIST) on the MPC5744P

Question asked by Peder Rogö on Aug 15, 2018
Latest reply on Aug 17, 2018 by Peter Vlna

Peter Vlna

Hello Mr Vlna,


Please refer our discussion in Using the Built-in Self-Test (BIST) on the MPC5744P 


We are using the MPC5744P CPU together with the System Basis Chip (SBC) 33907. 


We are considering how to test the BIST functionality. As you mention one method would be to start the system with a low power supply level. But, what will actually happen is that the SBC will detect the low power and hold the CPU in reset?


Do you see any other methods to verify the CPU BIST?  


If the CPU detects a fault during the off-line BIST it will stay in reset and after 8 seconds the SBC will enter Deep fail safe state (the system is powered off), correct?


Best Regards,