RM57L843: Program to customer OTP region

Ravi Teja Darbha

Part Number: RM57L843

Tool/software:

Hi,

While going through the RM57 reference manual, we came across something called customer OTP i.e. one time programmable region. We would like to store Ethernet mac in this region. My question is how to we access this region and how do we ensure that it cannot be programmed again after the first time we program it?

Thanks,

Ravi

1 month ago

0 jagadish gundavarapu 1 month ago

TI__Guru 57330 points

Hi Ravi,

OTP region can only program one time, this region cannot be erased. So, after you program the data into this region the corresponding data will lasts forever and never get erased again. That means we should carefully write the data into this OTP region, once you write the data it cannot be alter.

(+) TMS570LC4357: TMS570LC4357: Example code for F021 OTP Programming - Arm-based microcontrollers forum - Arm-based microcontrollers - TI E2E support forums

In above thread we programmed the OTP region with some required data, please have a look on it once.

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Thanks & regards,
Jagadish.