This has been copy and pasted. I think I made my original post in the wrong section! http://forums.ni.com/t5/LabVIEW/Help-with-NI-DAQ-Example-Code/td-p/2524308
Hi. I've just started working with the NI ISB-6211. This is the first ACD i've ever used, so i'm farily new to this. I have quite a bit of knowledge in programming. After searching through the installation files I found some example C Code that runs in the command prompt. I've modified one quite a bit to get it to do what I want. My question is...
Now, i'm having some issues. I'm trying to get it to print a voltage reading into the command prompt. I've hooked it all up and i've used labview to make sure everything is working as it should (Which it does!). When I compile the C program and run it, instead of returning a voltage it just aquires points, and I really have no idea what these "points" are.
Here is the main part of the example code:
DAQmxErrChk (DAQmxCreateTask("",&taskHandle));
DAQmxErrChk (DAQmxCreateAIVoltageChan(taskHandle,"Dev1/ai0","",DAQmx_Val_Cfg_Default,1.0,10.0,DAQmx_Val_Volts,NULL));
DAQmxErrChk (DAQmxCfgSampClkTiming(taskHandle,"",10000.0,DAQmx_Val_Rising,DAQmx_Val_FiniteSamps,1000));
/*********************************************/
// DAQmx Start Code
/*********************************************/
DAQmxErrChk (DAQmxStartTask(taskHandle));
/*********************************************/
// DAQmx Read Code
/*********************************************/
DAQmxErrChk (DAQmxReadAnalogF64(taskHandle,1000,10.0,DAQmx_Val_GroupByChannel,data,1000,&read,NULL));
printf("Acquired %d points\n",read);
Error:
And then it just moves down to the exit clause. Is there any documentation anywhere which tells me which DAQ command I need to use to print a continuously updating voltage read out? (Just as a decimal, like 5.21V for example).
Thank you all
John
