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Re: [AVR-Chat] Re: USB hard drives sticks

2004-07-25 by Jesper Hansen

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
> 
> 
> 
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>  
> Yahoo! Groups Links
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