On Thu, 2007-03-29 at 17:09 -0400, Timothy Weber wrote:
> Herbert Graf wrote:
> > I apologize in advance if you're not talking about ICSP with PICs, but
> > if you're inferring ICSP with PICs doesn't happen below 5V, that's
> > simply wrong.
> > 
> > The only reason you'd need 5V for ICSP is if you are code protecting
> > your part and need to do a bulk erase. Otherwise, any ICSP programmer
> > that allows for the target to supply power can theoretically support
> > ICSP below 5V. I know for a fact the ICD2 works perfectly fine
> > programming (and debugging) a part running at 3.3V without issues.
> 
> Hey, that's great!  I guess there must be some other reason I've never 
> been able to make it work in the context I have that uses 3V (PICkit 2, 
> various PICs, XBees, not much else).  I'll look into it in more detail.

I will add that it does depend on the ICSP programmer, it must "support"
programming the PIC at voltages other then 5V. The ICD2 certainly
supports that, and I'd hope that most better ICSP programmers out there
would support it as well. I don't know if the PICkit 2 supports it,
anyone here know for sure?

TTYL

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist