Alex -

1) Jon Elson knows what he is talking about.

2) I had difficulty setting the on-board D525MW parallel port so that I
could read data from my CNC4PC MPG controller. I *might* have been able to
use the 2nd port on the Mesa 5i25, but I was very inexperienced with the
5i25 then.

What I did was get code (from Jon Elson) that actually went out and set the
parallel port to the right mode, so that the required LPT pins could act as
input pins.

I packaged it up, and now use it on a couple of computers. Setting the mode
within BIOS did NOT set the parallel port into the correct mode, for some
reason.

There is an LPT port tester on the LinuxCNC site (link not available to me
ATM) that runs an on-screen viewer that shows the status of the input
lines. I'm certain I used that to see that some of the control signals from
my mpg was not making it back to the system.

After the running of the "set the printer port"  little program, all was ok.

As mentioned, it *might* be possible to use the 2nd port on the 5i25 as a
general input port, but others here can confirm or reject that assumption.

John A. Stewart
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