On Tuesday 06 July 2010, Rian Lauwrens wrote: >Hi > >I have configured my stepper and it works well when I test it in the >configuration menu. But every time I try to launch my application of >my config, the whole computer freezes and I have to restart. > >I saw on the forum that my videocard may be too new. Is this true? I >have, according to the pc, an ATI Rage 128 Pro Ultra TF. > Not fam with that one, so I'll only say that the rage family of stuff I know about is plenty old enough.
>What can I do about this? I've been struggling for two days now. I >will appreciate anyone's advice. Edit the .ini file you are using and add at least one, maybe 2 more zero's to it in the BASE_PERIOD statement. Lockups will be the result when you ask the rtai part to go faster than the machine can do because it leaves no time for linux to run so it looks locked up. That figure is in nanoseconds, so it looks large anyway. Once you have that part working, then it can be reduced until you begin to experience lags. Too large and if running steppers, you will hear them obviously changing speeds like notes on a piano, which may limit your top speeds because the steps are a larger portion for each step up in speed. Ideally the tones from the steppers will run up and down like a fire siren when its running in a circular pattern. Mine is running with an old XP-1400 athlon that on that board, runs at the boards minimum setting of 1600 mhz, very cool and stable. It survived the shop hitting 108F before I opened the door yesterday evening. On that box, I run it at a BASE_PERIOD of about 40,000, which leaves enough time that I can browse the web and be on #emc on IRC without hugely noticeable lags. It will run in the higher 20,000's but its pretty laggy then. Oh, and I am using the vesa driver for a middle aged video card, latency- test results were 4x better than even the linux driver for that card, and 20x better than the makers own drivers. Sure, vesa has its limits, but its _much_ better on the parts being carved to live with the vesa limitations. -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) BOFH excuse #373: Suspicious pointer corrupted virtual machine ------------------------------------------------------------------------------ This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
