Hello parport listees
I have two parallel ports in my laptop machine. One is on the
motherboard the other is a PCMCIA card. As a code-test I would
simply like to send data from one port and read on the other.
Do I simply connect data port lines to data port lines (pins 2-9
with direction bits set properly in the control register)
or do I need to connect the ground pins together as well? In
other words: Is the common internal grounding of the machine
good enough?
Thanks for your help,
Daniel
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