Olin Lathrop wrote:
> > I hope the demo board is not powered at all when you try that, else
> "interesting" things could happen.
Well, it *was* powered when I did that, since it is powered when I use 
the ICD2 as a programmer rather than the EasyProg.  Since there is no 
connection between  the two boards other than through  the RJ12 cable, 
why would it be bad?  (I'm not arguing the point, since you generally 
know what you are talking about -- just wondering why it is bad.)
> > It does in lots of cases, but there is no way to account for all the 
> things
> a target circuit can do to the programming lines.  My ICSP writeup at
> http://www.embedinc.com/picprg/icsp.htm might give you some insight.
OK, I'll take a look at it.  PDQ, as a matter of fact.  The dsPICDEMO is 
pretty innocuous.  If I had made a target board rather than just using 
what I already had available, I'd probably have wired it pretty much the 
same way.  There is nothing there other than a 28-pin socket and support 
(power, crystal, etc.) for the socket, plus a couple of LED's.  One to 
show that it is powered, and the other that is attached to an I/O pin 
for demonstration (flash an LED).  However, I might have a different 
opinion after reading your ICSP writeup. 

(Of course, I am assuming that I do not have to specifically tell the 
EasyProg that it should program via the RF12 line rather than going to 
the ZIF socket -- I just figured they  ran in parallel).

John

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