On 10/29/2015 12:48 PM, Stuart Stevenson wrote: > Gentlemen, > re: the cinci at MPM > When they push the arrow key to move an axis the machine keeps moving. A > couple weeks ago the X axis was the only one doing this but now other axes > demonstrate this feature. > They disconnect the keyboard, use the mouse to move the axes with using the > +/- buttons and get the same result. > What should the next focus be to troubleshoot this? > > Ubuntu 8.04 > LinuxCNC 2.4.? > Axis Display > > I know, I know - it needs upgraded. Not possible at this time. > > OK, I had something like this, and just dealt with it for a while. then, the keyboard totally quit. I found out I had a crummy DIN to mini-DIN adapter that had a bunch of broken wires inside. (Yes, that's how old some of this stuff I use is, 5-pin DIN keyboards. But, i have a water/chip proof cover on that keyboard, so I keep using it.)
I have not had the sticking key problem since repairing the adapter. What is happening is the computer is sometimes failing to receive the "key up" message, so it doesn't know the key has been released. If you are sure the on-screen jog buttons do the same, then that is sure a new one on me. I've never seen that. Be aware if you unplug the keyboard in the middle of a jog, you WILL get the stuck jog condition for sure. First, I'd fire up Halscope and make sure the servos are not doing something abnormal. If the pid.n.error trace seems to be normal (ie. the servos are truly following the commanded position) then I'd see about replacing the whole computer with another one running the same version. Just put it on a table to find out WHAT part of the system is doing the misbehavior. Are these keyboards and mice USB or PS/2? If you have a choice, try the other kind, just to see if it behaves different. Also, try doing keyboard and mouse stuff NOT in LinuxCNC to see if you can get any misbehavior to appear there, too. The stuck jog key effect is EASY for me to believe, as I have experienced it here, too. The other is not something I have seen, and it seems a little harder to understand. My knowledge of mouse protocols is they do NOT send key up/key down messages, but have a bit in the format that says the button is down. So, it seems harder for that to get the button stuck down condition. Jon ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
