Don Stanley wrote: > On Thu, Sep 23, 2010 at 9:18 PM, Jon Elson <[email protected]> wrote: > > >> Don Stanley wrote: >> >>> Hi All; >>> What conditions do the JP1 and JP2 set? >>> I need 0-10 Volt from the DAC, preferably using all eight bits. >>> >> Just for future reference, I have added this info to the doc page at http://pico-systems.com/spindac.html > Thanks, that fixed that. > > The other 10% step problem is; motion.spindle-speed-out is passed > through scale.0 and mux2.0 to correct for different gears of the > spindle drive. One of those is apparently messing with the data but > it looks good in Hal Show. > I'll test that tomorrow and pass it on. > Unless you (or someone) already know the answer and solution? > Well, it sounds like one of those components is treating the value as an integer rather than a float. Can you check what is being sent to
ppmc.0.DAC8.00.value? Is it getting values that are changing in small increments, but the output only changes in large jumps? If so, then there is either a hardware problem and some of the data bits are not getting through to the DAC, or there is a new software quirk in the driver. You might try using the univstepdiags program. The command is sudo ./univstepdiags 378 spindle It then asks for the output in volts. So, enter 1.25 or 2.5 and see if you get values in fractions of volts. I will check this here, but my test system is really old, based on the 6.06 release, so if it is a software problem, it may not show up. If you don't have it, the diags program can be loaded from here : http://pico-systems.com/codes/univstepdiags.tgz Jon ------------------------------------------------------------------------------ Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing. http://p.sf.net/sfu/novell-sfdev2dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
