1 Jul
2006
1 Jul
'06
3:22 p.m.
Don Y wrote:
Although I wonder if the parallel port's fast enough such that a couple of
latches could be used upstream of the dacs, controlled by one of the parallel
port's status lines? That way only one port could be used, plus there's scope
for using another of the status lines to control blanking.
cheers
Jules
If you had two
parallel ports, you could save some money at the
expense of
accuracy, by using a simple resistive ladder DAC:
http://www.epanorama.net/circuits/dacs.html
The rest, as they say, is trivial software. :)
Sound card sure seems easier! :>
Build a WAV file and just have it "play" endlessly.