s32k3 SHE Basic secure boot

[luhaiou_autolink]

I've been debugging the secureboot feature with s32k312 recently,

first debugging the Advance secure boot feature, it jumps from HSE_FW to app normally.

Now try to debug the Basic secure boot feature on the same machine.

My understanding is that I need to clear all the SMRs and CRs that I have installed before, so that I can debug the Basic secure boot normally,

Then how to format the installed SMRs and CRs?

[lukaszadrapa · Accepted solution]

Hi @luhaiou_autolink 

if you still have the device in CUST_DEL life cycle, you can use following service to erase whole HSE data flash, so you can start over:

Another option is to erase the entries individually:

Or you can remove the firmware completely and start over:

Regards,

Lukas