On Sun, 2008-10-19 at 10:14 -0600, John Harris wrote: > Hi, > Does EMC2 still support the use of a single Parallel Port? If > so where can I find documentation on the functions handled by a single > port system and how this is done? > Thanks > ____________________________________________________________ > John Harris
It depends on what you are trying to do. With a typical single port, you have twelve outputs and four inputs: http://www.linuxcnc.org/docview/html//hal_drivers.html#sec:Parport http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?EmcKnowledgeBase If you have three axes that are controlled by step and direction, that will take up six outputs. If you are going to use limit and/or home sensors, I think that anywhere from two to nine or more inputs will be needed. So a single port could run a CNC machine, but it might not have all of the features you want. It depends on the details of your design. The assignment of each pin is controlled by what you enter into your .ini file. A Pico Systems or Pluto-P controller would give you more speed and I/O in a single port solution. Kirk ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
