@omidontop Thanks for the tutorial!
just one comment on the openOCD tool, that the website has 0.9 version available, but it won’t work, at lease in my case. I would suggest you to put a comment there to remind others to download the 0.8 version.
@peekay123 I was having exactly the same problem as yours. I thought it might because the beginning sectors of the sparkcore was locked, and I tried to unlock it with according to this thread. But it seems the core was still locked according to my st-link utility, after loaded the unlocker binary. I’ll let you know when I get any progress.