AnsweredAssumed Answered

OTP problem of imx7ulp

Question asked by Stanley Yeh on Oct 19, 2018
Latest reply on Oct 22, 2018 by Yuri Muhin

Hi there,

I am using i.MAX7ULP and try to use u-boot commands to program OTP memory.

The command is "fuse prog 0 0 0x55667788". (bank: 0, word: 0, val: 0x55667788)

However, when I use sense command to read the OTP memory, the value is 0x00007788.

I also programmed other words of bank 0, I got the same result.

Finally, I programmed the 7th word of bank 30 with "fuse prog 30 7 0x55667788" command, the return value is normal.

Could you tell me why, please? I have no idea about this problem.

Thanks a lot.