topic S32K312 debug port disable in S32K

S32K312 debug port disable

Yiming2 — Sun, 28 Apr 2024 02:22:43 GMT

hello

I am try to completely/permanently disable the debug port. and I also find the following content in HSE_B manual(latest version).

but I did not find any more description in RM or HSE_B. So how to completely disable the debug port?

Re: S32K312 debug port disable

lukaszadrapa — Mon, 29 Apr 2024 07:53:06 GMT

Hi @Yiming2

it's not possible to disable the debug port completely on this device. The only option is to use static or dynamic protection of the debug port (i.e. password or key). There's already a request to remove all references to "debug disable" from the HSE FW RM.

Regards,

Lukas

Re: S32K312 debug port disable

Juan_Gonzalez1 — Fri, 30 May 2025 03:44:43 GMT

I have the same question for MCWT2xxxS, is it posible to disable debug port?

Re: S32K312 debug port disable

lukaszadrapa — Fri, 30 May 2025 07:11:37 GMT

Hi @Juan_Gonzalez1

MCWT2xxxS is a derivative of S32K312, so the answer is the same: it's not possible to disable the debug completely.

Regards,

Lukas

MCWT2xxxS Debug Protection implementation

Juan_Gonzalez1 — Fri, 30 May 2025 14:07:12 GMT

Thanks Lukas, The MCWT2xxxS Reference manual mentions that the details of security feature are in Security Reference Manual, Can you provide me that document or any other reference for debug protection implementation please?