In S32K-RM.pdf, I know how to use the backdoor key to unsecure the chip. But if the chip is secured and there's no porgram in it. How can I unsecure it with backdoor key? Is there any tools or applications?
anyone can tell me?
There is an example that shows use of the feature.
Example S32K144 Verify Backdoor Access Key S32DS1.3
Unfortunately, the backdoor key can be used to unlock the MCU by the FTFC command only.
If you want to unlock the MCU from outside, you need to mass erase the whole chip.
Retrieving data ...