Mark VB
Guest
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 Posted:
Tue Feb 22, 2005 6:10 am Post subject:
Re: In Circuit PIC reading |
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Paul ( Skiing8 ) wrote:
| Quote: | Hi
I have a circuit that has a PIC controller and it has 5 connection points
that are connected to the correct points for in circuit programming. I also
have a PIC programmer board with an in circuit programming header. My idea
was to read the code on the PIC, possible modify it. So I hooked it all up
and when I went to read it the programmer did not find a PIC chip to read. I
did not venture any farther because I thought that code protection may be
enabled on the PIC, but then when I thought some more I realised it may be
my connections or something wrong with what I was doing. Before I try again
can anyone tell me what happens when trying to read a code protected PIC?
Does it find it but not read it or not find it completly like I already
found?
Also can I do any damage to the circuit(as long as everything is connected
to the right connections)?
Cheers
Paul
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Some PIC's read out scrambled, others all zero. Your programmer should
be able to check whether there's a PIC connected or not. If all
connections are made according to Microchip's recommendations (not just
wired) you will not damage your circuit.
HTH,
Mark Van Borm |
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