🚀 go-pugleaf

In article <Ha03nCAhcA8yEwQr@btcf.demon.co.uk>
           dave@btcf.demon.co.uk "David E Glass" writes:

>A friend of mine at university is currently writing the software for a
>V.34 modem. However the processing power required is major and it
>currently runs on a Silicon Graphics Indy workstation.

It depends which bits of the modem you offload onto the main processor. Most
modems like this use techniques like RPI which offload the protocol parts
onto the main CPU  (V.42, V.42bis etc.), the actual signal processing is still
done by a DSP in the modem. You don't need much processing power to handle
the protocols, in a Courier it is handled by an 80186/8.

Even if you could implement the whole modem with the main CPU, you still need
some extra hardare, A DAC,ADC, and anlogue driver circuirty, so it is not
possible to implement this such that all you need is a cable. You'd also
need some significant buffering and low latency access to the processor,
which rules out most PC environments.

-- 
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Lawrence Kirby | fred@genesis.demon.co.uk
Wilts, England | 70734.126@compuserve.com
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