Readout protection level 2 and bootloader

root · ‎2012-03-29

Posted on March 29, 2012 at 10:53

Hello,

I just try to make one of my prototypes secured and set ROP level 2.

First in ST Link Utility, it took more than 10s and it finally said an error message, is this normal ?

Then, now on this unit I cannot use the bootloader anymore; the bootloader replies no at the step where is set write protection to off on sectors 4 and 5 and tries to erase them (I don't know which step is failing ...).

Is this normal ?

Thomas.

root · ‎2012-03-29

Posted on March 29, 2012 at 10:56

Addendum : it does not erase the sectors because if I cycle power the application runs agains.

And I tried on another unit with readout protection level 1 and it works fine.

Thomas.