RE: [CAD_CAM_EDM_DRO] on board = ports

I don't know if this will make a difference but most integrated parallel ports
can be set in one of three modes,
the names of which I do not recall. Unless the port is configured to "standard"
mode, you may get strange results trying to drive a stepper driver.
This is a BIOS setting that you must normally do at boot time. I think the
standard mode is normally called "SPP" mode (other choices are ECP and some
other TLA).

These modes are intended to give the printer better throughput and/or reduce the
CPU load while sending printer data, and I would expect that *they* would expect
appropriate "handshake" synchronization signals from the wire plugged into the
port, something which stepper drivers definitely do not do!
-Kevin

-----Original Message-----
From: carlcnc [mailto:carlcnc@...]
Sent: April 3, 2002 2:55 PM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] on board = ports


Has anyone had trouble running cncpro with "integrated" paralell
ports?? Two different computers and I can't get good control from
either.
Should I get a PCI slot card??

thanks
Carl