How to disable JTAG pin function on S32K324 chip

[DamonH]

Hi, 

Is there any way to disable JTAG/SWD port on S32K3xx chip?

In S32K1xx I can disable JTAG/SWD by set FSEC[SEC].

Is there similar function on S32K3xx?

Thank you.

Best Regards

Damon

[petervlna]

Hello,

You can use life cycle for such purpose.

Yes, it is possible to restrict debug access via password protection when HSE is not installed.

Your need to program field CUST_DB_PSWD_A in UTEST memory with the desired password and then advance the lifecycle.

Best regards,
Peter

[WXM]

How do you advance the lifecycle?

[snaku_lee]

I think Device Configuration Format (DCF) records is a solution, but maybe there is another better way.