gnupic: Re: [gnupic] Pic-Kit 3 and Linux?
Subject:
Re: [gnupic] Pic-Kit 3 and Linux?
From:
Peter Stuge ####@####.####
Date:
8 Oct 2009 16:37:40 -0000
Message-Id: <20091008163737.23973.qmail@stuge.se>
Joe Pfeiffer wrote:
> >If I were to design one, I'd probably take the cheapest PIC part
> >with and SCI port, add a charge pump for Vpp and throw on a
> >USB-to-serial IC and call it done. But I'll only put in the effort
> >if there's interest.
>
> I'd be interested in such a thing. Having the intelligence on the
> host would definitely be a Good Thing.
It will also be kinda slow. But it's better than nothing.
> Why a PIC with SCI and a USB-to-serial rather than a PIC with USB?
Please PLEASE do not ever use USB-to-serial as the first choice!
It's a totally dumbed down way of using USB. It would be MUCH better
to use one of the USB PICs.
> Also, for ease in assembly, I'd suggest cheapest DIP rather than
> cheapest (I've hand soldered surface-mount and regarded it as No
> Fun).
I think SMT is fun, but it can be small. Fortunately there are USB
PICs which come in both SO and PDIP packaging so the same design can
easily be reused to create both a very compact design, and one which
is very easy to build.
Note that this design, (USB PCI + sync serial port + charge pump) is
pretty much what is inside the PICkit2.
//Peter
