Hi Cassie,

You wrote:
>Having followed the thread about JW erasing and program protect bit
>erasing, I wonder if someone out there would like to spoil us with a
>JW reader while erasing is taking place. Maybe a 16C84 could be
>placed on a pc board with a socket for JW eg. 12C508/9 and constantly
>read the part untill is is blank. Then beep or turn the UV off ?
>
>How about a project challenge ???

The problem with this method is you are "just" erasing the other device.
When the UV light is turned off, the bits may retain just enough charge to
show up as a "0" (programmed) in some circumstances).

With a bit of experimentation, you should be able to figure out what amount
of time is proper for erasing different PICs (they're not all the same).

Sorry, it would be an interesting project, but I don't know if I could trust
the output,

myke

"I was well aware that the processes of puberty are often fatal to psychic
power."
- Sir Arthur Conan Doyle