# OSX: TestDaq error **URL:** \ **Category:** Uncategorized\ **Created:** [May 27, 2006, 11:09am UTC](https://psychtoolbox.discourse.group/t/osx-testdaq-error/1629 "2006-05-27T11:09:15Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![r\_schmidly](https://avatars.discourse-cdn.com/v4/letter/r/e68b1a/32.png) [@r\_schmidly](https://psychtoolbox.discourse.group/u/r_schmidly)\ **Post date:** [May 27, 2006, 11:09am UTC](https://psychtoolbox.discourse.group/t/osx-testdaq-error/1629/1 "2006-05-27T11:09:15Z")
Greetings, I recently bought a USB-1208FS data acquisition device and have run across an error when I try the TestDaq program. All goes well until the tests for DaqAInScanBegin, DaqAInScanContinue, DaqAInScanEnd and the following error results: ??? Undefined function or variable "dinc". Error in ==\> DaqAInScan at 371 for d=(1:3)\*dinc % interfaces 1,2,3 Error in ==\> DaqAInScanContinue at 15 [data,params]=DaqAInScan(device,options); Error in ==\> TestDaq at 323 params=DaqAInScanContinue(daq(1),options); Has anyone else seen this or have ideas on its cause? I have not tried to use these functions in another program yet. I am using the current beta of PTB and Matlab 7.2 on a Powerbook G4 667 with 1 Gb of RAM running Tiger 10.4.6. Thanks, Richard Schmidt Associate Professor Psychology Department College of the Holy Cross ---
**Author:** ![daniel0906](https://avatars.discourse-cdn.com/v4/letter/d/e47774/32.png) [@daniel0906](https://psychtoolbox.discourse.group/u/daniel0906)\ **Post date:** [May 31, 2006, 12:50am UTC](https://psychtoolbox.discourse.group/t/osx-testdaq-error/1629/2 "2006-05-31T00:50:40Z")
Yes, I get precisely the same error below when running TestDaq.m with the USB-1208FS plugged into either a PowerBook G4 or an Intel-based Mac mini. (i.e., before I installed Software Updates recently and MATLAB on the Mac mini stopped working.) Both my Macs have the 'beta' branch of OSX Psychtoolbox installed. Daniel Shima Vanderbilt Vision Research Center > On 5/27/06, r\_schmidly \<[schmidtr@...](mailto:schmidtr@...)\> wrote: > \> Greetings, > \> > \> I recently bought a USB-1208FS data acquisition device and have run across an error when > \> I try the TestDaq program. All goes well until the tests for DaqAInScanBegin, > \> DaqAInScanContinue, DaqAInScanEnd and the following error results: > \> > \> ??? Undefined function or variable "dinc". > \> > \> Error in ==\> DaqAInScan at 371 > \> for d=(1:3)\*dinc % interfaces 1,2,3 > \> > \> Error in ==\> DaqAInScanContinue at 15 > \> [data,params]=DaqAInScan(device,options); > \> > \> Error in ==\> TestDaq at 323 > \> params=DaqAInScanContinue(daq(1),options); > \> > \> Has anyone else seen this or have ideas on its cause? I have not tried to use these > \> functions in another program yet. I am using the current beta of PTB and Matlab 7.2 on a > \> Powerbook G4 667 with 1 Gb of RAM running Tiger 10.4.6. > \> > \> Thanks, > \> Richard Schmidt > \> Associate Professor > \> Psychology Department > \> College of the Holy Cross > \> > \> > \> > \> > \> > \> > \> > \> > \> > \> > \> Post your message to: [psychtoolbox@yahoogroups.com](mailto:psychtoolbox@yahoogroups.com) > \> Please indicate OS9, OSX, or WIN version, and include your full name. > \> Denis Pelli, David Brainard, and Allen Ingling. > \> [http://psychtoolbox.org](http://psychtoolbox.org) > \> > \> Yahoo! Groups Links > \> > \> > \> > \> > \> > \> > \> > \> ---
**Author:** ![r\_schmidly](https://avatars.discourse-cdn.com/v4/letter/r/e68b1a/32.png) [@r\_schmidly](https://psychtoolbox.discourse.group/u/r_schmidly)\ **Post date:** [June 1, 2006, 5:11pm UTC](https://psychtoolbox.discourse.group/t/osx-testdaq-error/1629/3 "2006-06-01T17:11:41Z")
Thanks for the verification, Daniel. I think I fixed the problem though...... The problem seems to be in the DaqAInScanContinue and DaqAInScanEnd functions which call the DaqAInScan. Looking at the code of the latter, I was perplexed as to how the 'dinc' variable takes on a value when the options.begin flag is set to 0 (as it would be for the DaqAInScanContinue or DaqAInScanEnd functions): the 'dinc' variable only takes on a value (line: 269) within a conditional (lines:245-286) that depends on the options.begin flag being set to 1. In order to have the 'dinc' variable to be valued between calls to DaqAInScan (from DaqAInScanBegin to DaqAInScanContinue to DaqAInScanEnd), I defined it on line 245 as persistent dinc; With that addition to DaqAInScan, TestDaq (and its calls to DaqAInScanContinue and DaqAInScanEnd) runs fine. I have not tested it further though.... -Richard > --- In [psychtoolbox@yahoogroups.com](mailto:psychtoolbox@yahoogroups.com), "Daniel Shima" \ wrote: > \> > \> Yes, I get precisely the same error below when running TestDaq.m with > \> the USB-1208FS plugged into either a PowerBook G4 or an Intel-based > \> Mac mini. (i.e., before I installed Software Updates recently and > \> MATLAB on the Mac mini stopped working.) > \> > \> Both my Macs have the 'beta' branch of OSX Psychtoolbox installed. > \> > \> Daniel Shima > \> Vanderbilt Vision Research Center > \> > \> > \> On 5/27/06, r\_schmidly \ wrote: > \> \> Greetings, > \> \> > \> \> I recently bought a USB-1208FS data acquisition device and have run across an error > when > \> \> I try the TestDaq program. All goes well until the tests for DaqAInScanBegin, > \> \> DaqAInScanContinue, DaqAInScanEnd and the following error results: > \> \> > \> \> ??? Undefined function or variable "dinc". > \> \> > \> \> Error in ==\> DaqAInScan at 371 > \> \> for d=(1:3)\*dinc % interfaces 1,2,3 > \> \> > \> \> Error in ==\> DaqAInScanContinue at 15 > \> \> [data,params]=DaqAInScan(device,options); > \> \> > \> \> Error in ==\> TestDaq at 323 > \> \> params=DaqAInScanContinue(daq(1),options); > \> \> > \> \> Has anyone else seen this or have ideas on its cause? I have not tried to use these > \> \> functions in another program yet. I am using the current beta of PTB and Matlab 7.2 > on a > \> \> Powerbook G4 667 with 1 Gb of RAM running Tiger 10.4.6. > \> \> > \> \> Thanks, > \> \> Richard Schmidt > \> \> Associate Professor > \> \> Psychology Department > \> \> College of the Holy Cross > \> \> > \> \> > \> \> > \> \> > \> \> > \> \> > \> \> > \> \> > \> \> > \> \> > \> \> Post your message to: [psychtoolbox@yahoogroups.com](mailto:psychtoolbox@yahoogroups.com) > \> \> Please indicate OS9, OSX, or WIN version, and include your full name. > \> \> Denis Pelli, David Brainard, and Allen Ingling. > \> \> [http://psychtoolbox.org](http://psychtoolbox.org) > \> \> > \> \> Yahoo! Groups Links > \> \> > \> \> > \> \> > \> \> > \> \> > \> \> > \> \> > \> \> > \>