On Sat, 12 Sep 2009, Sebastian Kuzminsky wrote: > Date: Sat, 12 Sep 2009 09:51:52 -0600 > From: Sebastian Kuzminsky <s...@highlab.com> > Reply-To: "Enhanced Machine Controller (EMC)" > <emc-users@lists.sourceforge.net> > To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> > Subject: Re: [Emc-users] 7I33 and mesa 5I20 > > Chris Radek wrote: >> On Sat, Sep 12, 2009 at 05:27:00PM +0200, Klemen Ozebek wrote: >>> Hello everybody, >>> >>> i have a problem with analog output from 7I33 mesa analog interface. If i'm >>> testing outputs with old mesa drivers i get desired signal from analog >>> output, but if i use hostmot2 driver, i just get 0 and for any other value >>> 10V. What i'm doing wrong? >> >> Not posting your HAL settings along with your question! >> >> (But really, maybe your scale is wrong.) > > Could be scale, or it could be pwm_frequency (default is 20 KHz, but the > 7i33 wants 192 KHz i think). >
Actually 6 MHz PDM is the suggested option for the 7I33, its about the best balance between ripple and linearity: 13 bit resolution with linearity in 11 bit region. > > -- > Sebastian Kuzminsky > any sufficiently analyzed magic is indistinguishable from science > > ------------------------------------------------------------------------------ > Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day > trial. Simplify your report design, integration and deployment - and focus on > what you do best, core application coding. Discover what's new with > Crystal Reports now. http://p.sf.net/sfu/bobj-july > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination. ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
