Yahoo Groups archive

AVR-Chat

Index last updated: 2026-04-28 22:41 UTC

Message

Re: [AVR-Chat] Looking at doing a datalogger using an XMEGA part - not sure which storage technology to use

2010-02-04 by Roland Jollivet

I don't know how the prices compare, but how about using a Ramtron device
for storage?

Roland

www.ramtron.com


On 4 February 2010 03:51, Dean Claxton <deanclaxton@gmail.com> wrote:

>
>
> 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.
>
> Dean
>
> On Wed, Feb 3, 2010 at 12:39 AM, Tim Mitchell <tim@sabretechnology.co.uk<tim%40sabretechnology.co.uk>
> >wrote:
>
>
> > ----Original Message----
> > From: AVR-Chat@yahoogroups.com <AVR-Chat%40yahoogroups.com>
> > [mailto:AVR-Chat@yahoogroups.com <AVR-Chat%40yahoogroups.com>] On Behalf
> Of Dave
> > McLaughlin Sent: 02 February 2010 11:58 To:
> > AVR-Chat@yahoogroups.com <AVR-Chat%40yahoogroups.com> Subject: RE:
> [AVR-Chat] Looking at
> > doing a datalogger using an XMEGA part - not sure which
> > storage technology to use
> >
> > > This all seems to be a grey area and there is no definite
> > > answer on their
> > > website. In fact, it is impossible to determine if you
> > > need this just to
> > > have the hardware present. I have no plans to show any
> > > kind of reference to
> > > SD in my product or even have external access to it and I
> > > can't find any
> > > information as to whether I need a license or not?
> >
> > They are trying to get you to join so I suppose it's not in their
> > interests to make it clear!!
> >
> > If you google a bit there seems to be a consensus that no license is
> > required if you use basic SPI to access the card as there is no patent
> > covering this. The license/patents appear to cover a proprietary method
> > of accessing the card. I have no way of verifying this information.
> >
> > I guess you have to decide if you are prepared to run the (small) risk
> > of them coming after you for possible patent infringement.
> >
> > --
> > Tim Mitchell
> >
> >
> >
> > ------------------------------------
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
>
> --
> Kind Regards
> Dean Claxton
>
> [Non-text portions of this message have been removed]
>
>  
>


[Non-text portions of this message have been removed]

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.