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MPC5646C CSE Questions

Question asked by jinjingyang Employee on Sep 21, 2016
Latest reply on Oct 13, 2016 by Peter Vlna

Dear Sir,

Some questions on MPC5646C CSE.

1) Because Debug Authorization command need input using KDF (MASTER_EUC_KEY, DEBUG_KEY_C)

If MASTER_ECU_KEY is unknown, we have no way to erase the MCU's user keys?

2) Debug Authorization command will erase all user keys.

Does here user key include BOOT_MAC_KEY?

3) How can we identify a key slot is empty?

For a fresh part we need load key for the very first time.

Should we just use LOAD_KEY command directly and the error code will be returned if it's not empty?



Jason Yang