Tony Firshman wrote:
> The main problem was that the input handshake (8049 chip) was bugged.
> Hermes uses the same basic hardware (but erasable firmware) and Laurence
> Reeves simply coded it properly! If only he had worked for Sinclair at
> the time we would have had a *much* better QL from the start.
>> I believe that upgrading to a Hermes circuit improved this to 19200
>> baud, and then SuperHermes to even higher rates. Although Tony will
>> have the exact details on these products ... :-)
> Hermes does 19200 input in theory, but the chip can only manage a bit
> under 14440 in. Output (8302 chip) has always been a working 19200.
> Hermes gives full 19200 each way and superHermes has a 'standard' serial
> port giving up to 230kbps each way.
Whoops - Hermes is only a theoretical 19200 (as I said in the previous
sentence!!!).
superHermes gives full 19200 each way from the QL serial ports.
Tony
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