AVR-Chat

Atmel says it needs a min of 600ma to power the MKII.  It has two 
ATMEG128 chips onboard plus other parts.

I was pleased to find the STK500 allows the target VCC to be set in 
software from AVRStudio. I measured it with a meter to be sure and 
it does what is says!  This is real handy for powering up sensors 
and other items you want to aval along with the AVR.


Al Welch

--- In AVR-Chat@yahoogroups.com, David Kelly <dkelly@h...> wrote:
> On Thu, May 26, 2005 at 01:33:14PM -0000, alwelch93021 wrote:
> > The STK500 schematics are available for anyone to review.  The 
MKII 
> > looks pretty complicated.  I looked it over just yesterday. For 
the 
> > price I would not bother to try and make my own.
> 
> Yeah, what I don't understand is what all that complexity is all 
about.
> Non-Atmel "serial emulation" USB chips appear to be much simpler 
than
> whatever Atmel did on the mk-II.
> 
> I have a mk-II and mostly use an ICE-cube because my LP2950CN-3-3 
isn't
> stout enough to drive the mk-II. Was a bit surprised the mk-II is
> externally powered yet apparently draws more from the circuit than 
the
> vampire ICE-cube. No time to investigate as long as I have 
something
> working.
> 
> -- 
> David Kelly N4HHE, dkelly@H...
> 
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> Whom computers would destroy, they must first drive mad.