Recovering from an aborted full flash erase

[ron2399]

Posted on June 28, 2016 at 08:29

I initiated a change from RDP level 1 to RDP level 0, which in turn initiated a full flash erase.  But before that process completed I pull the power on the chip.  Now dfu-util refuses to load new code, saying:

dfu-util: ERASE_PAGE not correctly executed

Is there any way to recover from this?

[slimen]

Posted on June 28, 2016 at 16:08

Hi,

What version of the DFU are you using?Regards

[ron2399]

Posted on June 28, 2016 at 21:46

I'm not sure what you mean.  If you mean what version of the on-chip DFU I'm using I have no idea.  The chip is an STM32F415.  If you mean what version of dfu-util am I using, it's 0.9 (running on OS X if that matters).

[slimen]

Posted on June 29, 2016 at 11:54

Hi lisper,

Try using the ST-LINK Utility

http://www.st.com/content/st_com/en/products/embedded-software/development-tool-software/stsw-link004.html

 and check that you can perform the erase.

Please let me know if it is OK with this suggestion.

Regards

[ron2399]

Posted on June 29, 2016 at 20:51

Unfortunately, ST-LINK only runs on Windows and I'm on a unix platform.  But I did manage to figure it out.  The magic incantation turns out to be:

dfu-util -s 0:force:unprotect -a 0 -D /path-to-some-dummy-firmware-file