- From: Luc Lefebvre <luc.lefebvre_at_mcgill.ca>
- Date: Thu, 24 Apr 2003 13:39:06 -0400 (EDT)
Hi Frank, I will be more than happy to cooperate and test. Here is the output I got from "comedi_calibrate -f /dev/comedi0": ------------>starts here Warning: device not fully calibrated due to insufficient information Please send this output to <ds_at_schleef.org> Id: comedi_calibrate.c,v 1.36 2002/06/12 23:19:39 ds Exp Driver name: ni_mio_cs Device name: DAQCard-6062E Id: ni.c,v 1.30 2002/06/12 23:19:39 ds Exp Comedi version: 0.7.66 ai, bipolar zero offset, low gain offset 0.20715(12), target 0 caldac[0] gain=-1.8701(76)e-5 V/bit S_min=17824.1 dof=254 caldac[2] gain=-7.79141(64)e-4 V/bit S_min=39764.7 dof=254 caldac[4] gain=-7.63683(59)e-4 V/bit S_min=72444.3 dof=254 caldac[5] gain=-3.32(13)e-9 V/bit S_min=65096.6 dof=254 caldac[6] gain= V/bit S_min=inf dof=254 caldac[7] gain= V/bit S_min=inf dof=254 caldac[8] gain= V/bit S_min=inf dof=254 ai, bipolar zero offset, high gain offset -6.498(15)e-4, target 0 caldac[0] gain=-1.37524(13)e-5 V/bit S_min=6769.39 dof=254 caldac[2] gain=-3.5817(14)e-6 V/bit S_min=393822 dof=254 caldac[4] gain=-3.7661(13)e-6 V/bit S_min=2636.39 dof=254 ai, bipolar voltage reference, low gain offset 4.764347( 0), target 5 caldac[0] gain=-9.035(51)e-6 V/bit S_min=25749.2 dof=254 caldac[2] gain=-1.083536(84)e-3 V/bit S_min=9.51834e+06 dof=254 caldac[4] gain=-7.64231(57)e-4 V/bit S_min=64171.8 dof=254 ai, unipolar zero offset, low gain offset nan, target 0 caldac[4] gain=-7.5427(32)e-4 V/bit S_min=17282.1 dof=79 ao 0, zero offset, low gain offset -0.285867(75), target 0.002442 caldac[0] gain=-1.9730(75)e-5 V/bit S_min=19087.3 dof=254 caldac[2] gain=-8.31115(78)e-4 V/bit S_min=4.8582e+06 dof=254 caldac[4] gain=-7.64563(61)e-4 V/bit S_min=55060 dof=254 caldac[6] gain=-7.72380(59)e-4 V/bit S_min=58687.1 dof=254 ao 0, reference voltage, low gain offset -0.29468(16), target -0.001221 caldac[0] gain=-2.4069(88)e-5 V/bit S_min=7413.55 dof=254 caldac[2] gain=-9.11320(76)e-4 V/bit S_min=5.13291e+06 dof=254 caldac[3] gain=-1.23074(65)e-4 V/bit S_min=36201.7 dof=254 caldac[4] gain=-7.64694(61)e-4 V/bit S_min=53256.6 dof=254 caldac[6] gain=-7.72971(59)e-4 V/bit S_min=59633.3 dof=254 ao 1, zero offset, low gain offset -0.193071(75), target 0.002442 caldac[0] gain=-1.9508(77)e-5 V/bit S_min=16953.6 dof=254 caldac[1] gain=-8.78677(60)e-4 V/bit S_min=53089.5 dof=254 caldac[2] gain=-7.24102(77)e-4 V/bit S_min=5.09215e+06 dof=254 caldac[4] gain=-7.65453(59)e-4 V/bit S_min=59693.3 dof=254 ao 1, reference voltage, low gain offset -0.22470(22), target -0.001221 caldac[0] gain=-2.5764(87)e-5 V/bit S_min=5408.75 dof=254 caldac[1] gain=-9.57635(61)e-4 V/bit S_min=52404.1 dof=254 caldac[2] gain=-7.20591(78)e-4 V/bit S_min=4.95292e+06 dof=254 caldac[4] gain=-7.64808(61)e-4 V/bit S_min=51730.3 dof=254 caldac[5] gain=-1.25411(61)e-4 V/bit S_min=39925.1 dof=254 <-------------ends here Note: If I run comedi_calibrate a number of times, I get a different result each time. Would this be typical? tia On Thu, 24 Apr 2003, Frank Mori Hess wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On Thursday 24 April 2003 10:03 am, Luc Lefebvre wrote: > > Hi, > > > > I can interact with my DAQ-Card 6062E using comedi but the calibration > > <comedi_calibrate states that the card is not supported yet...> appears to > > be off. The voltages read are approx 200 mV off. Yet when I look at the > > same voltages using the National Instruments Explorer application the > > voltages read are bang on. I would *much rather* do my data acquisition > > under linux than NT, but I need to have a good calibration. Any > > suggestions as to how I might go about this would be appreciated. > > > > cheers > > I've been doing some work on improving comedi_calibrate recently. If you are > willing to do some testing, I'll get it fully calibrated. The first step > would be for you to post the complete output that comedi_calibrate generates > when run. > > - -- > Frank > > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.0.6 (GNU/Linux) > Comment: For info see http://www.gnupg.org > > iD8DBQE+qB175vihyNWuA4URAhrqAJ9QGd6MIwy1bTnaC3FaEJO0RynsxwCeMDED > IPvFYW3cO7xFs9vJM7VM70g= > =U/ik > -----END PGP SIGNATURE----- > -- Luc Lefebvre In the beginner's mind there are many possibilities, in the expert's mind there are few. <Shunryu Suzuki> Key fingerprint = D2E5 5E35 B910 6F4E 0242 EC63 0FD9 96D0 C7F4 784E
Received on 2003-04-24Z16:39:06