AVR-Chat

If you're making a product for sale, be sure to read the license terms of
each technology before deploying. It's possible that you may decide that one
tech is better than the other for non-technical reasons. I'm not familiar
with Dataflash, but I can tell you that in order to include a SD card slot
in your product you are required to join the Secure Digital Association,
which costs a couple thousand dollars, and to pay annual license fees per
product, which are thousands more. It's been a while since I looked, but I
believe it was around $5000 for the first year and $2-3k for all future
years if you sell only one product. The price is regardless of whether you
sell one board or millions.

I suspect that you could make a small hobbyist board without having to worry
about the license fees, but it is something that you should be aware of.

On Mon, Feb 1, 2010 at 3:22 AM, Dean Claxton <deanclaxton@gmail.com> wrote:

> Hi all,
>
>  I've been a little out of touch with AVR's of late, and was surprised to
> see the XMEGA part on the web site. Looks like a very capable little chip -
> lots of goodies built in that could be very useful. When did it come out?
> The datasheet revisions date back to 2008 - I must have been living under a
> rock.
>
> The project is a datalogger for automotive use, and the XMEGA part looks
> quite attractive, but I'm still undecided on the storage side.
>
> I understand that dataflash is fast, but realistically what sort of speeds
> could I expect if I used an SD card for data? SD would offer a much larger
> capacity than dataflash, and low cost too, but how well do they go?
>
> Anyone here with experience with both? I have quite a number of 64Mbit
> dataflash chips on hand so it would make sense to use them, but I dont want
> to compromise the design just because the parts are on the shelf.
>
> Thanks
> Dean
>
>
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>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
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