DIY 7i90 and EPP

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2 years 11 months ago #286137 by Cant do this anymore bye all
Thinking of this route, for the signals from the LPT port should I run them through a FET bus switch ? Any suggestion in the way of termination and such ?

Cheers
Rob

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2 years 11 months ago #286176 by PCW
Replied by PCW on topic DIY 7i90 and EPP
The 7I90 uses bus switches so the interface is 5V tolerant
but it may be that most existing parallel ports use 3.3V signaling
levels. A little poking around with a voltmeter would be useful.

Termination (impedance matching) is not needed as the transaction
rate is quite low and the parallel port is not capable of driving parallel
termination.

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2 years 11 months ago #286183 by Cant do this anymore bye all
Once again thanks kind sir

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