2081199_en-US

[#1]

Why can't I read the correct value after programming the fuse?

Hi,

After I use fuse prog  to write the SRK_HASH value, I want to use fuse read  to read the data for comparison, but the value returned is 0.

But when the power is turned on again, the correct data can be read.

After writing SRK_HASH, how long do I need to wait for the fuse to complete the prog program?

Thanks,

ZongYue

i.MX 8M | i.MX 8M Mini | i.MX 8M NanoSecurityRe: Why can't I read the correct value after programming the fuse?

Hi,

The fuse values can be effective after SoC reset. Normally.

For comparison, you can use the command line "fuse sense " after writing and without reset.

Regards

Harvey