IMX6ULL - burn OCOTP block

Showing results for 
Search instead for 
Did you mean: 

IMX6ULL - burn OCOTP block

Contributor I

Hello everyone,

I'm struggling with burning data into OCOTP block on IMX6ULL (MCIMX6Y2DVM05AB revision) using mainline U-Boot 2019.04. According to the reference manual, I try to write data into Bank7 Word0 using built-in fuse_prog function but I always get  `mxc_ocotp fuse_prog(): Access protect error` error despite the fact that the address, operation and value are valid. For the test purpose I've switched to the IMX6UL and I was there able to write data into OCOTP without any problem using the same code, changing only the bank. So my question is: is it possible to burn OCOTP block in IMX6ULL and if so, how to do that correctly?



Labels (1)
0 Kudos
1 Reply

NXP Employee
NXP Employee


I suggest you see the following document. Probably it can be useful to you. 

Best regards,


0 Kudos