AVR-Chat

Hi Chuck,
 
I have been and still am a bit fan of the AVR and use them for smaller
control modules that I design. I do however have a controller that has an
LCD and a number of interfaces, CAN, RS232, RS485, 4-20mA etc and I had to
find a suitable processor for these. I stumbled across the Netburner modules
from an old college and I am currently using the MOD5234 in 2 of my designs.
The compiler, support and hardware are superb and there is a really good
user forum for them too with a nice bunch of users rather like this AVR
forum. Granted it is not ARM, but a Freescale Coldfire core but it runs at
147MHz and comes with a ton of memory so my applications can be very complex
and because of the LCD, I can build nice graphical interfaces for them. They
run UCOS 1 which is a very nice and stable real time OS.
 
I am also looking at the ARM processor for the future a I want to develop a
board that can run Android so that I can continue to have the same IO but
with the added advantage of the core OS already built and then I only have
to concentrate on the application code each time and not have to build it
into the current application each time.
 
The Stellaris range of processors are very interesting too and these are ARM
based. According to a good friend of mine, the Code Sourcery development
system is a nice option for these processor. You can find dev kits that come
with a JTAG interface over USB so they represent a nice option if you are
looking for something new to play with.
 
I will still be using the AVR (AT90CAN128 as it happens) for the remote IO
that the main controller communicates with.
 
Good luck finding a new core to play with.
 
Dave.
 
From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On Behalf
Of Chuck Hackett
Sent: 29 November 2010 14:15
To: AVR-Chat@yahoogroups.com
Subject: RE: [AVR-Chat] ARM .vs. AVR
 
  
> From: Leon Heller
> 
> On 28/11/2010 22:23, John Samperi wrote:
> > At 09:21 AM 29/11/2010, you wrote:
> >> AVR Studio doesn't support ARM.
> >
> > So why did you compare the two? :-)
> 
> 
> I think the OP asked for a comparison.

OP here - Yup, I did ask for a comparison. Good discussion so far but I
haven't
heard anything that would make me want to move to ARM. From my original
post:

"My projects are mostly personal and, in general, are not especially
processor
intensive. I am working on one project that I intend to market (Small
market,
realistically probably no more than 200-300 units). I use a variety of
digital I/O,
ADC inputs, PWM, USART, TWI, just now getting into CAN, have not yet used
USB ..."

The only thing I would add to that is that, as my projects have become more
complex
I've moved up in flash size but, so far, 16k has been enough and I'm just
now moving
to a ATMega32 anticipating some more complex protocol layers.

So, anyone have a comparison of ease of programming, better peripheral mix,
or other
processor family characteristics?
 
Cheers,

Chuck Hackett




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