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.