AVR-Chat

From: AVR-Chat@yahoogroups.com
[mailto:AVR-Chat@yahoogroups.com] On Behalf Of Dean Claxton
Sent: 04 February 2010 01:52 To: AVR-Chat@yahoogroups.com
Subject: Re: [AVR-Chat] Looking at doing a datalogger using
an XMEGA part - not sure which storage technology to use 

> Ok thanks guys,
> 
> I too plan just to use it for internal storage - it would
> not be accessible 
> to the end user without opening the case. Download would
> most likely me via 
> USB, but it seems the the XMEGA's dont feature USB.
> 
> Perhaps I should start looking at the AVR32 as the
> external memory bus would 
> also allow the use of SRAM as an option.
> 

I'm just working on a USB project using a AT90USB1287 (or AT90USB647).
This is an AVR mega part with built in USB. I am using Dean Camera's
free LUFA library which makes the internal storage appear as a removable
disk drive on the host PC (mass storage). It's a very easy way to go as
no drivers are required on the PC. Dean even provides a working
datalogger project which would probably do most of what you need.

-- 
Tim Mitchell