how to debug csec function use jlink gdbsever

[top]

hi

  we enable csec function and write key in CSEC_KEY_1，then debug the app use jlink gdbsever，so mcu is locked.

  how to debug csec function use jlink gdbsever ,must be erase all csec key?

[lukaszadrapa · Accepted solution]

Hi @top 

I just answered similar question here:

https://community.nxp.com/t5/S32K/S32K142%E4%BD%BF%E7%94%A8CSEc%E5%8A%9F%E8%83%BD%E8%8A%AF%E7%89%87%...

Yes, it's necessary to erase the keys (disable CSEc) by CMD_DBG_CHAL and CMD_DBG_AUTH commands with knowledge of MASTER_ECU_KEY. Or use different debug probe (like Pemicro)

Regards,

Lukas