Re: PIC18 K22 series chips

Tim Edwards <[email protected]> Mon, 31 Jan 2011 22:43:34 +0000 (UTC)
Newsgroups gmane.comp.hardware.microcontrollers.gnupic
Message-ID <[email protected]>
Jerry,

> The nominal voltage for Vpp changed from 12V for the 18F4525 to 8.5V on 
> the 18F45K22.  I don't know if the Picstart Plus can support that.  There 
> may be more changes as well.
> 
> Personally, I'd just get a PICkit 2 and program with that.  That part is 
> listed as supported if you use the standalone application.

I found out that even that comes with caveats.  The pic18F45K22 is listed as
supported by the PICkit 2, it's true.  I downloaded the pk2cmd-1.20 for Linux,
and discovered that the 18F45K22 is not among the devices listed in the
accompanying device file.  I found an updated device file on the Microchip
PicKit-2 web page, so I downloaded that.  It does list the 18F45K22.  Great so
far. . . so I plugged everything in and ran a blank check, and what do you know?
 It reports that the device file requires an updated version of pk2cmd. 
However, pk2cmd-1.20 IS the only version available on the Microchip website. 
Poking around the Microchip forums, I discovered that there is a test version
pk2cmd-1.21, but the forum only gave a pointer to a Windows version.  So I have
posted a reply on that forum thread, and we'll see how that goes.

    ---Tim