>I have stayed out of the fray so far, but I would like to throw my 2
>cents in on this. I would vote for option C - instead of a recovery
>jumper, put another small switch like the reset switch in-line with
>the eprom power.
As Scott noted, you shouldn't be removing power from an IC that has
live inputs. However, you can interrupt a signal line between the
EEPROM and the PIC; the result is what you want - no communication
between the PIC and the EEPROM.
Just be aware that if the switch develops any problems and gets
noisy, you can easily corrupt the communication path and it's not
that simple to fix it (you'd have to replace the switch). With a
jumper, you can do your own maintenance/cleaning, if it should ever need it.
> Cosmic Wedgie no problem just hold down the new
>switch and hit the reset switch! not only should it fix the cosmic
>wedgie it would also not entail a jumper that could be lost....
No different than the R's power jumpers.
>Note I am not 100% sure this is a possible fix for recovery from a
>cosmic wedgie, but if it did work it would make life alot simpler.
Yes, it can be done that way. If you were to hack your own board
like this, it would do exactly what you want.
...Andy
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