Re: comedi_calibrate question

On Tuesday 18 January 2005 02:13 pm, Bob Apodaca wrote:
> I have an NI 6071E board and I ran comedi_calibrate:
>
> comedi_calibrate --calibrate /dev/comedi0
>
> eeprom reference lsb=149 msb=255
> resulting reference voltage: 4.99989
> Id: comedi_calibrate.c,v 1.89 2003/08/08 17:38:59 fmhess Exp
> Driver name: ni_pcimio
> Device name: pci-6071e
> Id: ni.c,v 1.98 2003/08/02 03:20:22 fmhess Exp
> Comedi version: 0.7.68
> ...
> writing calibration to
> /var/comedi/calibrations/ni_pcimio_pci-6071e_comedi0 Applied calibration
> for subdevice 0, channel 0, range 0, aref 0
>
> My question is the last line of the calibration where it indicates the
> calibration was only applied to channel 0, what do I do to get all 32
> (or 64) channels calibrated?  Am I missing something?

Your board only has one multiplexed a/d converter.  So when you apply a 
calibration to one channel, the same calibration gets applied to all the 
channels.

-- 
Frank