Hi all,
I have a new project based on a 16f877A and my attempts at programming
the first batch of protos is being derailed.
I've attempted to program four different units at this point and I'm
experiancing different failures with each, which is down right wierd.
I believe I can rule out programmer issues (a CCS ICD-U64), I have a
different project on my desk, also based on the 16f877A that I can
read and write without issues.

The most interesting of the failures is what I get when I try to read
the device ID. On two of the units I get 111111111, but on two other
units the software reports:
Read    XX011100010XXXXX
Expect XX001110001XXXXX

Now, reading all 1s suggests a stuck pin or other short, but these
other units apear to be sending the ID back shifted one bit to the
left. Has anyone seen that before?.

Any suggestions would be apreciated, but I have at least one specific
question: Is an oscilator on the PIC neccesary for programming? For
reading the Device ID?

-Denny
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