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Re: [AVR-Chat] Re: USB controller wanted

2004-09-30 by Paul Maddox

Tomek,

if you want full bandwidth use the FTDI 245 chipset, this outputs data in
parallel rather than serial,
I used this for a project (www.waveterm.com) and it works a treat.. but it
can really hammer the AVR when its in full flight!

Paul


----- Original Message -----
From: "Tomek" <atel@kr.onet.pl>
To: <AVR-Chat@yahoogroups.com>
Sent: Wednesday, September 29, 2004 10:30 PM
Subject: [AVR-Chat] Re: USB controller wanted


> THANK YOU GUYS!
>
>    I checked parts that you suggested but what I want to do is to
> use the full bandwidth of USB. The chips you proposed are actually
> emulating USB, LINX is good but 3MBit is far too slow for me.
> I was thinking rather of 12MBit (Full-speed USB), if I want to send
> data form my device to PC in real time I need fast transmission
> without any proxy overhead. It is still question to me how do I
> communicate with USB devices under windows? I was browsing
> Microsoft's MSDN library but found no API functions for this. I read
> that there are no universal api functions as there is no strict
> classification of USB devices for whom the functions could have been
> written (except HID device).
> So it looks like I have to write my own driver for my device or buy
> ready-made modules you mentioned before.
> I would be thankful for any suggestions or hints as this topic is
> very interesting to me.
> Thanks in advance
> Tomek
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>

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