code gets stuck at daqmxbasecreatetask

[Aatish]

Hi there,

I'm running the NI-DAQmx base on Mac os X with labview 7.1. I'm trying to use the dio C code examples that came with it, in particular writedigport.c (attached)
The thing is, when running the executable I get no signal, instead the program just get stuck. With some prodding I found that the it hangs at the call to DAQmxBaseCreateTask

The line is: DAQmxErrChk (DAQmxBaseCreateTask ("", &taskHandle));
I'm not sure what to do about this and would appreciate it if anyone could help me resolve this issue. All the example vi code runs fine in labview, so ii'm pretty sure the ports are set up right. Also, I'm pretty sure I'm calling the right port (Dev1/port0) so I don't think that's the problem.

Thanks,
Aatish

[WM_John_Weeks]

What version of OS X?

What kind of DAQ device?

Be sure to check the ReadMe file- the support for various capabilities is dependent on the hardware.

[Aatish]

OS X 10.3.9
software: NI-DAQmx Base 1.5.0f2
model:USB-6008

[Aatish]

So it seems that I was wrong about it getting stuck, I wasn't waiting long enough. After about 30 secs or so, I get the message:
DAQmxBase Error: -200220
Anyone know what I should do here?
Thanks,
Aatish

[Aatish]

also, this means that the offending line of code is not the one i mentioned before but the channel creation step:
DAQmxErrChk (DAQmxBaseCreateDOChan(taskHandle,chan,"",DAQmx_Val_ChanForAllLines));
sorry about that!

[WM_John_Weeks]

From NIDAQmxBase.h:

#define DAQmxErrorInvalidDeviceID (-200220)

Looks like you aren't using the correct name for your device.