S32K312 debug port disable

[Yiming2]

hello

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

Yiming2_1-1714270892190.png

Yiming2_0-1714270777671.png

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

[Juan_Gonzalez1]

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

[lukaszadrapa]

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

[Juan_Gonzalez1]

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?

[lukaszadrapa]

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