AVR-Chat

I think SDcard is a perfect media for embedded
systems. advantages: low pin count, versatile
operating voltage, small footprint, availability of
sdcard reader sockets on new notebooks, easy to solder
socket.

and if you want a ready soln. visit this link, i
recently discovered.

http://www.roguerobotics.com/products/uMMC/uMMC.htm


Murat


--- Jesper Hansen <jesperh@telia.com> wrote:
> Look at he Cypress SL811HS
> 
> It can easily be interface with and AVR, and it's no
> big deal
> to make the USB Host interface code on the AVR.
> 
> I know, because I've tried, but cannot offer more
> details at
> the moment.
> 
> /Jesper
> 
> 
> ----- Original Message ----- 
> From: "Joel Kolstad" <jkolstad71@yahoo.com>
> To: <AVR-Chat@yahoogroups.com>
> Sent: Saturday, July 24, 2004 10:33 PM
> Subject: [AVR-Chat] Re: USB hard drives sticks
> 
> 
> > The Atmel AT43USB370 and AT43USB380 can serve as
> USB hosts.  There 
> > is a fair amount of software involved, but it can
> be drastically 
> > simplified in the data logging application
> described if you decide 
> > you only want to talk to mass storage-class
> devices (such as the USB 
> > key drives) and provide support for only one
> connected device.  
> > 
> > Bit-banging a USB at 12Mbps is pretty much out of
> the question, I 
> > think.  It could be (and has been) done at
> 1.5Mbps, but 
> > unfortunately for the host it's the slave device
> that gets to 
> > determie the data rate and all the memory sticks
> I've seen are full 
> > speed (12Mbps) or high speed (12Mbps during
> enumeration, usually a 
> > choice of 12Mbps or 480Mbps thereafter).
> > 
> > ---Joel Kolstad
> > 
> > 
> > 
> > 
> > 
> >  
> > Yahoo! Groups Links
> > 
> > 
> > 
> >  
> > 
> 
> 



		
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