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How to check OCOTP register of i.MX28

Question asked by gary lee on May 15, 2015
Latest reply on May 17, 2015 by igorpadykov

Hi all,

I have burned the chip efuse in i.MX28 (burned the key to HW_OCOTP_CRYPTO register, and public hash to  HW_OCOTP_SRK register.), but when I used "BitBurner.exe" to check the value of the OCOTP register, I got the ROM error code: 0x80501006.

I have referred the ROM error code definition, "0x80501006" means "key lookup failed", so I don't know why I run "BitBurner.exe", it shows this error code.


Btw, after burning the chip efuse, the fw image must be signed first, then I used the download tool(sb_loader) to download and run it.If fw image has not been signed, it can't be run, and ROM error code is 0x80501006,too. SO I guessed above action has been taken effect.