i.MX ProcessorsのトピックiMX8MQ processor Socket Based EVK for secure boot (OTP)

iMX8MQ processor Socket Based EVK for secure boot (OTP)

nilesh_patel — Wed, 27 May 2020 08:47:11 GMT

Hi,

We are planning to work for a secure Boot on iMX8MQ.

For secure boot, we need to program the fuses on i.MX8MQ(processor) and as per our understanding this is a one-time programmable process.

So in the development phase, we would require process steps where
1) A method by which we can reverse the false written fuses? As per our understanding this is not possible. Kindly confirm.
2) An EVK which contains the socket-based processor, whose processor chipset can be replaced. Request to provide the reference where such EVK with processor socket for our development.

Thanks,

Nilesh Patel

Re: iMX8MQ processor Socket Based EVK for secure boot (OTP)

igorpadykov — Wed, 27 May 2020 12:38:25 GMT

Hi Nilesh

1. yes this understanding is correct.

2. EVK board design files have bom file which lists all used parts.

i.MX 8M Evaluation Kit | NXP

Best regards
igor
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Re: iMX8MQ processor Socket Based EVK for secure boot (OTP)

nilesh_patel — Fri, 29 May 2020 09:03:20 GMT

Hi igor,

Is there any method, to avoid processor damage?

Thanks,

Nilesh Patel

Re: iMX8MQ processor Socket Based EVK for secure boot (OTP)

igorpadykov — Fri, 29 May 2020 11:05:57 GMT

Hi Nilesh

>Is there any method, to avoid processor damage?

I am afraid no, as blown fuses can not be reverted back.

Best regards
igor