Re: [avr-chat] Selection of AVR for my project

[David Kelly]

On Apr 25, 2013, at 9:53 AM, Keith Gudger <address@hidden> wrote:

> Have you considered a firmware only USB implementation?  Here's 
> one:http://www.obdev.at/products/vusb/index.html
> 
> I've used a similar firmware before, and it worked fine.  There seems to be 
> an i2c implementation here: 
> http://www.harbaum.org/till/i2c_tiny_usb/index.shtml

Those are options. I'm guessing this is a one-off experiment. I'd visit my 
favorite vendor, DigiKey, Mouser, Newark, etc, and see what is available in 
demo kits with USB. All the manuals and software are online for download from 
Atmel. Study them, see what your vendor stocks, and make a selection.

Each demo board has an assortment of demo projects which will come up running 
pretty quickly. HID on USB should have multiple options to chose from.

For example I'm currently using an ATxmega256A3BU X-plain board with USB and 
LCD and I forget what else. It was about $50. But I'm not using USB or LCD, I 
wanted DMA and AES. When/if the time comes to make my own board I'll go back to 
the Atmel matrix and select a CPU which meets my needs. But then again if this 
one is $8 and another is $7.50 I'll probably not change.

--
David Kelly N4HHE, address@hidden
============================================================
Whom computers would destroy, they must first drive mad.