S32K144,
We are currently locking the JTAG state through the 0x400 segment.
How can we use J-Link to enter the backdoor key for unlocking?
Hi @MUXU,
The backdoor key cannot be entered via the JTAG/SWD interface.
The FTFC command Verify Backdoor Access Key can only be initiated by the application core.
For implementation guidance, refer to the following example:
https://community.nxp.com/t5/S32K-Knowledge-Base/Example-S32K144-Verify-Backdoor-Access-Key-S32DS1-3...
BR, Daniel
