HELLO,
my name is mhemara fay. i have a q for you.
Anyone has successfully extracted a preprogrammed 8051 chip with fuse locked? I want to retrieve the binary image from a programmed 8051 micro any ideas? Thanx
"It is almost always cheaper to review the original specification, mails etc and recreate from that and a working unit than to fight with reverse-engineering."
Absolutely!
I was just pointing out that it would - in principle, at least - be possible. Whether it would be sensible or worthwhile is, of course, an entirely different question!
;-)
Yes, I saw the italics on the "entirely" :)
I just wanted to point out the non-obvious fact that it may be illegal to reverse-engineer your own project.
I once was tasked with recreating the code for a unit where the sourcde was lost (the factory burned and the i....s did not have off-site backup). I spent a lot of time with a disassembly and then realized that recreating the code from scratch is far faster than deciphering a disassembly. This is even worse if the original is in C.
Erik
PS the chips were not locked the recereate was to add a feature.