On Tue, Jun 02, 2009 at 11:28:41AM -0700, Kirk Wallace wrote:
>
> Thanks Michael and Gary. It looks like AVR is the way to go. Especially
> in the form of an Arduino:
> http://axis.unpy.net/01198594294
Some variants, such as the AT90PWM3 can synchronise three on-board PWM
channels in hardware, to generate variable frequency 3-phase PWM, e.g.
for controlling a BLDC.
The new AVR XMEGA family only has one member so far. I'm waiting for
lower pin count variants before switching from the ordinary AVRs. The
attractions of the xmega include on-board quadrature inputs, and the
ability to route such inputs to other on-board hardware, without tying
up the cpu to deal with the signals.
My original reason for choosing AVR over PIC was existing gcc support.
That could also be beneficial in your case, not only because the
toolchain is free, but other AVR users on this list are most likely to
be using the same one.
Erik
--
Do not seek to follow in the footsteps of the men of old.
Seek what they sought.
-- Matsuo Basho
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