Reading Outputs as Inputs
Roman Black email (remove spam text)
Bob Ammerman wrote:
I'm surprised at this! With all the professionals
on this list, I have become used to the "never go
outside the spec" attitude, like never exceeding
clock frequency etc. I really don't like the idea
of driving a pin against a voltage source or sink,
at 5v or 0v, this is as bad as driving a pin into
a short circuit - which I wouldn't do either!
Doing it only for "an instruction or two" doesn't
seem to make it any better, it is still so far
out of spec to be scary. I would much prefer to
overclock a PIC at 1.5x its clock freqency than to
do something like this!
http://www.piclist.com hint: The PICList is archived three different
ways. See http://www.piclist.com/#archives for details.
See also: www.piclist.com/techref/microchip/ios.htm?key=input
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