On Sat, 26 Apr 1997, Byron A Jeff wrote:
> > Hi all!
> > Thanks  all for help.
> > To me was managed to erase the bit of protection UV eraser
> > during 3 hours and to record the new program.
>
> So it seems to me that this is the best way to do it. The code protect
> bit can be erased, but there is absolutely no way any part of the program
> will still be there (after 3 hours) once it is erased.
>
> This is good to know.
>

        Hmmmm, I hate to be the one to advocate even more draconian
security features, (I really hate the Code Protect problem! ) but in
reading the above I'm forced to wonder if such complacency is justifed..
Now I'm no expert on EPROM technology or anything but I  have to
wonder having gazed with wonder through many a ceramic window if it would
be possible, given the nessecary technology and someone with a damn good
knowledge of the internal layout of the PIC to guide a nice fine laser
beam at the area in memory where the configuration bits are stored.
(If my poor English teacher ever saw the length of that sentance ..:-)

        Am I oversimplifing things in asking such a question ?


                                        Best Regards

                                                David.