This sounds like 2 sets of hardware fighting each other, I mean when you made the second port.
What about switching the port at 0x378 off? or alternatively you might also try to restart parport-pc with just the portaddress you have set in the bios. I unfortunately do not know the parameters neededn for lp or EMC: In fact come to think of it, is lp used in EMC or ppdev??? Can someone help out here?? cheers Jan de Kruyf. On Mon, Apr 18, 2011 at 2:25 AM, <[email protected]> wrote: > I installed Ubuntu 10-04LTS/EMC2 on a brand-new Foxconn R40-D4 Atom > D525 box. All the real-time files show up in /dev and EMC starts with > no errors. > Problem #1 was there was no output from the parallel port. It shows > up as 'out' in stepconfig. When I read /var/log/dmesg I see a line > "lp: driver loaded but no device detected" which makes me worried. > I went into the BIOS and played around, and I found that if I set the > parallel port to have an address 0x278 in the BIOS, then go into > stepconf and add a second parallel card at the standard address 0x378, > the parallel port has outputs -- pin 2 is x step, pin 3 is x dir, just > as I had set it up. > Except the voltage coming out of the parallel port is 300mV, give or > take a couple millivolts, rather than the 3.3V or 5V I would have > expected, and of course the motor drives don't see 300mV. That's at > least two volts below their threshhold. > Foxconn doesn't list this machine on their website downloads section, > or any other machine with the same processor (the Atom D525) so I don't > want to download a bios for a different processor and completely hose > the machine. > > I don't know whether I'm doing something wrong, the BIOS is wrong, the > hardware is wrong, or something else entirely is wrong. I know the CNC > machine itself works because I've run it off another computer (that I > can't use for actual control because its latency is terrible, but it > worked fine for testing.) I put in a second parallel card and tried to > assign it in stepconf but that didn't seem to work at all. > > Has anyone else used this hardware? Do you have any suggestions for > what I need to do to fix or work around this situation? I could make a > whole bunch of opamps to act as voltage translators but I'm reluctant > to start down the kludge path so early, especially when maybe it's just > a bad superIO chip and I need to return the box to newegg and start > with another. > Thanks for any help > > > > ------------------------------------------------------------------------------ > Benefiting from Server Virtualization: Beyond Initial Workload > Consolidation -- Increasing the use of server virtualization is a top > priority.Virtualization can reduce costs, simplify management, and improve > application availability and disaster protection. Learn more about boosting > the value of server virtualization. http://p.sf.net/sfu/vmware-sfdev2dev > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Benefiting from Server Virtualization: Beyond Initial Workload Consolidation -- Increasing the use of server virtualization is a top priority.Virtualization can reduce costs, simplify management, and improve application availability and disaster protection. Learn more about boosting the value of server virtualization. http://p.sf.net/sfu/vmware-sfdev2dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
