Thank you John - you don't know how much I have been beating myself up for not understanding HAL. Even if there are typos in your email I'm sure I should be able to make things work now. I have got the basic idea of HAL I think but when I was trying to make my own script I was under the impression that I needed to somehow use siggen to provide driving pulses to stepgen (or freqgen as in the tutorial). I also got myself in a real knot many times trying to join the wrong types of components together and trying to feed one signal into more than one other component - then getting errors saying that the signal was already connected to something else.... Since my previous email I have spent two or three solid hours each day trying to work this out for myself since I realised that was what you were trying to get me to do but I failed and to be honest, I think that it was largely because I couldn't find documentation written simply enough for me to grasp. I would dearly have liked to find a 'manual' on stepgen which not only lists the various signals and functions but also gives more description of what each does in less technical language and says how they interrelate - perhaps with worked examples.... It may be that I have a personal block on this but I don't think I am particularly dense and I've been working with linux and EMC from before the BDI days - built my own computers back in the '70's including a working copy of an Apple II built from salvaged components as I couldn't afford the real thing - so if I am having trouble, I guess others might and, if they are not as pushy as me, maybe they'll be put off doing what they really want to as a result.
I'm now going to sit down and make sure that I really understand what your modifications to the script are doing....... -- Best wishes, Ian ____________ Ian W. Wright Sheffield UK "The difference between theory and practice is much smaller in theory than in practice..." ------------------------------------------------------------------------- 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
