On Sat, Jan 22, 2011 at 10:36:55PM -0600, Jon Elson wrote: > Sorry, but I have to.... While Halscope itself can only read internal > signals, anything > you want can, in principle, be piped into the Hal environment. What > you'd do is set up > a base thread at some suitable rate, and run Halscope and the parport > module on that > thread, with the parport data bus set to input.
You betcha - finding inputs into HAL is truly no problem. That's what it's for! > Then, you could have > Halscope bring > in those signals for display. Now, whether this is worth all the > trouble to set it up > is a good question. A 13 input 4 output (kind of slow) logic analyzer for about $0 is fairly appealing to someone who doesn't have a logic analyzer and needs one... Running only parport read and halscope_rt in a base thread might make it possible to run it quite fast. It would be interesting to try. We get 50kHz on any old hardware doing math for stepgens - with care (smp with cpu isolated) and just reading could you get 250kHz? 500? That's starting to be very useful territory. But as a general purpose scope, being able to see analogish stuff is the primary mode of operation (for me?) and halscope and a parport really wouldn't be any use at all. ------------------------------------------------------------------------------ Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsight-sfd2d _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
