On Fri, 2008-06-13 at 17:07 +0000, aaron Moore wrote: > Alan > Thanks for reply. > I am using steppers, so do I add my read and writes to the servo thread or > the base > thread?
The step (and direction) pulses that steppers or step/direction servo and stepper controllers use, need to be very fast, so if your step and direction signals are coming through your parport, your parport driver needs to run as fast as possible. The base thread is the fastest thread. The servo thread is a little slower and among other things, monitors and controls what goes on in the base thread. The servo thread also is used to control things that don't need to to be fast or particularly accurate timing wise. If you are not connecting your steppers to the new parport, you most likely can run the driver for the new parport in the servo thread. > My .hal file still has all the original configuration lines in, which I know > work... will > it run once I make these changes or is there still more to do? > > Aaron When you mention that your original .hal file worked fine, it makes me think that your steppers are already being controlled, So what will you be connecting to your new parport? -- Kirk Wallace (California, USA http://www.wallacecompany.com/machine_shop/ Hardinge HNC/EMC CNC lathe, Bridgeport mill conversion, doing XY now, Zubal lathe conversion pending Craftsman AA 109 restoration Shizuoka ST-N/EMC CNC) ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
