I must have been making some silly mistake. Adding the thread before the EMCMOT is working for me now, and I have reasonable analog values being read now. Thanks for the double check. The frequency capability is still not as high as I calculated would be possible, but it is high enough to avoid egregious interpolation problems (but not interpolation free).
Thank you Viesturs, Chris, Peter and others! I have some basic documentation of the full solution here: http://code.google.com/p/sector67-sandbox/wiki/FrequencyBasedAnalogInput Basically, frequency to analog input using a software encoder though a Mesa 5i23 and 7i37 isolating daughterboard, hooked to the analog 00 input and used from the M66 gcode command is now working. Any suggestions or refinements, please let me know. Scott On Sun, Mar 18, 2012 at 2:07 AM, Chris Morley <chrisinnana...@hotmail.com>wrote: > > Scott > I added loadrt threads name1=testthread period1=200000 > to a config before loading EMCMOT > it seemed to load fine. > What commands did you use? > > > > Date: Sat, 17 Mar 2012 21:08:43 -0500 > > From: scott.ha...@gmail.com > > To: emc-users@lists.sourceforge.net > > Subject: Re: [Emc-users] Voltage to frequency for analog input > > > > Stopped down to the shop tonight to try: > > > > addf hm2_5i23.0.read_gpio base-thread > > > > Debug file information: > > HAL: ERROR: function 'hm2_5i23.0.read_gpio' needs FP > > analog-in.hal:4: addf failed > > > > To me this implies it is not a real time capable function? I tried > > creating a separate thread, but I get: > > > > insmod: error inserting > > '/usr/realtime-2.6.32-122-rtai/modules/emc2/threads.ko': -1 Operation not > > permitted > > > > Presumably with motmod initializing and loading threads I cannot add > others > > afterward. This leaves me in kind of a bind. Does anyone have any ideas > > about adding the read_gpio function to the base thread or alternately > > loading a thread that it could bind to? > > > > > > ------------------------------------------------------------------------------ > This SF email is sponsosred by: > Try Windows Azure free for 90 days Click Here > http://p.sf.net/sfu/sfd2d-msazure > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ This SF email is sponsosred by: Try Windows Azure free for 90 days Click Here http://p.sf.net/sfu/sfd2d-msazure _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
