itsfm1
Posts: 1
Joined: Tue Sep 18, 2018 9:22 pm

vcmailbox user defined OTP usage

Tue Sep 18, 2018 9:28 pm

Hi,

I ran across this document:

https://www.raspberrypi.org/documentati ... ndustrial/

and was playing around with:

to program OTP customer rows 4, 5, and 6 to 0x11111111, 0x22222222, 0x33333333 respectively, you would use:

[email protected]:~ $ /opt/vc/bin/vcmailbox 0x00038021 20 20 4 3 0x11111111 0x22222222 0x33333333
This will then program rows 40, 41, and 42.

One thing I noticed is I can only increment the values until I'm at 0xFFFFFFFF and I'm not able to reset them to 0x00000000 . Anyone have a better understanding of the tool and or the list of commands since 38021 is SET_CUSTOMER_OTP , I wonder if there is a clear customer otp or something I'm missing. I have done quite a few searches looking for additional info but haven't found too much so asking here.

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