storage the related Keys in the OTP (one-time program) memory of AM6421

Vincent Wang

Prodigy 120 points

Part Number: AM6421

Tool/software:

I need to store the related Keys (security features) in OTP memory of AM6421.

What is the size of the OTP memory in AM6421?

How to program the OTP memory in AM6421?

Thanks in advance.

Vincent

10 months ago

0 Vaibhav Kumar 10 months ago

TI__Mastermind 44446 points

Hello Vincent,

The assigned expert is currently out of office, Please expect responses in few business days.

Regards,

Vaibhav

0 Prashant Shivhare 10 months ago in reply to Vaibhav Kumar

TI__Guru 69161 points

Hello,

Please visit the below link to request access to the page hosting OTP programming tool & user guide.

https://www.ti.com/drr/opn/AM64X-RESTRICTED-SECURITY

Regards,

Prashant

0 Vincent Wang 10 months ago in reply to Prashant Shivhare

Prodigy 120 points

Hello Prashant,

I want to confirm the OTP memory size in AM6421. EFUSE0 (256 bytes) is the OTP memory, right? Is there another OTP memory available in AM6421?

Please share the feedback.

Secondly, I can not access the link you shared.

0 Prashant Shivhare 10 months ago in reply to Vincent Wang

TI__Guru 69161 points

Hello,

I am not sure what that EFUSE0 map is. There is only Secure & Extended OTP available. The Secure OTP is used for secure boot while Extended OTP bits are there for the customer usage.

And following is the correct link:

https://www.ti.com/drr/opn/AM64X-HS-RESTRICTED-SW

Regards,

Prashant

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storage the related Keys in the OTP (one-time program) memory of AM6421