U.S.B. speeds

[phiscock-g851W1bGYuGnS0EtXVNi6w at public.gmane.org]

Because of handshaking and protocol overhead, the effective transfer rate
over USB is *much* less than the basic speed numbers would seem to
indicate.
It also depends on the type of transfer you are doing.

I don't know exact figures, but I do remember that USB 1.0 was in effect
not all that much faster than a high baud rate serial connection, in the
order of 100k bytes per second. (I'm going from memory...)

Peter

> How fast is U.S.B. 1 ?
>
> How fast is U.S.B. 2 ?
>
> What is the ratio of the two speeds ?
>
>
> James ('Jim') E. McIntosh
> <JamesEMcIntosh-Zj02edb3ZmYyydXFykfHLQ at public.gmane.org>
> <JamesEMcIntosh-Iimme/3Z544AvxtiuMwx3w at public.gmane.org>
> <JEMListT-azQ+K1WMaxU at public.gmane.org>
> 416-292-8126
>
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-- 
Peter Hiscocks
Syscomp Electronic Design Limited, Toronto
http://www.syscompdesign.com
USB Oscilloscope and Waveform Generator
647-839-0325

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