Ralf Reköndt wrote, on 12/Mar/13 20:01 | Mar12:
Well, I once built a QL board in a case with a simple expansion PCB for
connecting an SQB, a QFlash EPROM board and a QEP III programmer outside
to a separate connector. No separate power supply and no capacitors and
all worked well the whole time. I am a bit unsure why it should take
such things to make it work.
Noise. Qplane was disastrous for my BBS (ask Phil Borman!), whereas
Mplane was 100% reliable.
A ground plane and shortest signal paths are essential for data integrity.
Tony
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