The key here is EPP: "Enhanced Parallel Port (EPP) is a half-duplex bi-directional interface designed to allow devices like printers, scanners, or storage devices to transmit large amounts of data. EPP can provide up to 2 Mbit/s bandwidth, approximately 15 times the speed achieved with normal parallel-port communication with far less CPU overhead."
Regards, Alex -------------------------------------------------- From: "Dave" <e...@dc9.tzo.com> Sent: Sunday, December 06, 2009 7:06 PM To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> Subject: Re: [Emc-users] Mesa 7i43 and a oxford semiconductor ox12pci840 chipset pci parallel card > That's interesting as the Moschip 9805 chipset boards have worked well > for me with the LPT step and direction drivers on EMC2 and also Mach3. > > Perhaps the driver that runs the 7i43 needs a different mode than the > LPT step and direction driver/s ?? > > Dave > > Sebastian Kuzminsky wrote: >> Maximilian H wrote: >> >>> I am trying to get this combination of a mesa 7i43 and an oxford >>> semiconductor ox12pci840 chipset pci parallel card to run, but I cannot >>> get it to run in epp_wide mode and I cannot get a servo thread to run >>> with a cycle time of less than 10 millisecs. With onboard mainboards I >>> got 1 millisecs cycle times without errors. >>> >>> Has anybody succeeded where I failed so far ? >>> >> >> Hm, i've had success with the Oxford Semiconductor PCI952 chipset with >> wide mode disabled, but i haven't tried the 840. >> >> >> >>> Is the information in the hm2_7i43 doc still valid that moschip 9805 >>> parport pci cards are junk ? >>> >> >> Yes, the 9805 chipset is buggy and there's nothing any driver can do >> about it. >> >> >> > > > ------------------------------------------------------------------------------ > Join us December 9, 2009 for the Red Hat Virtual Experience, > a free event focused on virtualization and cloud computing. > Attend in-depth sessions from your desk. Your couch. Anywhere. > http://p.sf.net/sfu/redhat-sfdev2dev > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 9.0.709 / Virus Database: 270.14.95/2547 - Release Date: 12/05/09 > 21:41:00 > ------------------------------------------------------------------------------ Join us December 9, 2009 for the Red Hat Virtual Experience, a free event focused on virtualization and cloud computing. Attend in-depth sessions from your desk. Your couch. Anywhere. http://p.sf.net/sfu/redhat-sfdev2dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
