AM2732-Q1: Regarding One Time Programming(OTP) memory available on TI AM2732

Syam Kumar Cherukuru

Prodigy 150 points

Part Number: AM2732-Q1

Tool/software:

Hi Team,

I Just wanted to know few details on the OTP(One Time Programmable) memory available on AM 2732 chipset

> What is the OTP memory available?

> How much memory is used for storing secure keys(for authenticating SBL)?

> Can we access OTP memory from SBL/Application? If yes please specify SDK API/component through which can access OTP?

Regards,

Shyam.

over 1 year ago

0 Ming Wei over 1 year ago

TI__Guru 55985 points

Hi Syam,

If you have downloaded the sbl_keywriter (OTP_writer) for AM273x, the "Programmable Keys" section in README_FIRST_AM273X.html has the programable memory available for AM273x:

2X of 512+256 bits

Best regards,

Ming

0 Syam Kumar Cherukuru over 1 year ago in reply to Ming Wei

Prodigy 150 points

Hi Ming,

Thanks for the reply. Can you please point me to the relevant sources of "sbl_keywriter" for AM273x?

I just wanted to know the API's that we can use from SBL or application to access the OTP memory.

Regards,

Shyam.

Arm-based microcontrollers

Arm-based microcontrollers forum

AM2732-Q1: Regarding One Time Programming(OTP) memory available on TI AM2732