Saturday, September 15, 2007

[oopic] Re: Roboteq motor controller.

> This is my application. Looking for a microcontroller i thinked the
> OOpic was the best for my use (i also looked at cubloc products and
> other ones). What Micro do you suggest? Any other suggestion to
> optimize my application?
>

I have no idea! Personally, I would choose between an ATmega128 which
is a 16 MHz processor operating on 5V or an LPC2148 60 MHZ ARM
processor running on 3.3V. Both have 10 bit A/D converters and 8
channels.

Both processors use the GNU toolchain appropriate to their
architecture. The toolchain is free, of course.

Both have 2 UARTs and are capable of 7 bits plus even parity a real
obstacle for the OOPic.

I pointed you to several ATmega128 boards. Here is an LPC2148 board
that I use:
http://www.sparkfun.com/commerce/product_info.php?products_id=545

It's pretty nice because it has the SD/MMC socket and there are a
number of file systems around that run on this board. It's out of
stock at the moment but it will be right back! Another board that I
have but haven't used is:
http://www.sparkfun.com/commerce/product_info.php?products_id=676.

It
lacks all of the gadgets of the development board but that may not be
an issue.

There is some terrific demo code for the LPC2148 at
http://www.jcwren.com/arm/

Everything you need to get started!

If you need a tutorial about setting up the GNU toolchain for the ARM
processor under Windows, send me a private email and I'll send it to
you. Expect about 11 MB. I can't attach documents to email from
Yahoo groups. Otherwise, research GNUARM for Linux.

Richard



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