system:
HW: NI USB-9263 DAC
driver NI-DAQmx 8.9.5
OS: Windows 7
connectivity:
Using the Measurement & Automation Explorer
I see NI USB-9263:"Dev1" under NI-DAQmx Devices
When I run the test application, VoltUpdate.c, it fails
when DAQmxCreateTask is called.
the complete example follows:
/*********************************************************************
*
* ANSI C Example program:
* VoltUpdate.c
*
* Example Category:
* AO
*
* Description:
* This example demonstrates how to output a single Voltage Update
* (Sample) to an Analog Output Channel.
*
* Instructions for Running:
* 1. Select the Physical Channel to correspond to where your
* signal is output on the DAQ device.
* 2. Enter the Minimum and Maximum Voltage Ranges.
* Note: Use the Acq One Sample example to verify you are
* generating the correct output on the DAQ device.
*
* Steps:
* 1. Create a task.
* 2. Create an Analog Output Voltage Channel.
* 3. Use the Write function to Output 1 Sample to 1 Channel on the
* Data Acquisition Card.
* 4. Display an error if any.
*
* I/O Connections Overview:
* Make sure your signal output terminal matches the Physical
* Channel I/O Control. For further connection information, refer
* to your hardware reference manual.
*
*********************************************************************/
/*********************************************************************
* Microsoft Windows Vista User Account Control
* Running certain applications on Microsoft Windows Vista requires
* administrator privileges, because the application name contains keywords
* such as setup, update, or install. To avoid this problem, you must add an
* additional manifest to the application that specifies the privileges
* required to run the application. Some ANSI-C NI-DAQmx examples include
* these keywords. Therefore, these examples are shipped with an additional
* manifest file that you must embed in the example executable. The manifest
* file is named [ExampleName].exe.manifest, where [ExampleName] is the
* NI-provided example name. For information on how to embed the manifest
* file, refer to http://msdn2.microsoft.com/en-us/library/bb756929.aspx.
*********************************************************************/
#include <stdio.h>
#include <NIDAQmx.h>
#define DAQmxErrChk(functionCall) if( DAQmxFailed(error=(functionCall)) ) goto Error; else
int main(void)
{
int error=0;
TaskHandle taskHandle=0;
char errBuff[2048]={'\0'};
float64 data[1] = {1.0};
/*********************************************/
// DAQmx Configure Code
/*********************************************/
DAQmxErrChk (DAQmxCreateTask("",&taskHandle));
DAQmxErrChk (DAQmxCreateAOVoltageChan(taskHandle,"Dev1/ao0","",-10.0,10.0,DAQmx_Val_Volts,""));
/*********************************************/
// DAQmx Start Code
/*********************************************/
DAQmxErrChk (DAQmxStartTask(taskHandle));
/*********************************************/
// DAQmx Write Code
/*********************************************/
DAQmxErrChk (DAQmxWriteAnalogF64(taskHandle,1,1,10.0,DAQmx_Val_GroupByChannel,data,NULL,NULL));
Error:
if( DAQmxFailed(error) )
DAQmxGetExtendedErrorInfo(errBuff,2048);
if( taskHandle!=0 ) {
/*********************************************/
// DAQmx Stop Code
/*********************************************/
DAQmxStopTask(taskHandle);
DAQmxClearTask(taskHandle);
}
if( DAQmxFailed(error) )
printf("DAQmx Error: %s\n",errBuff);
printf("End of program, press Enter key to quit\n");
getchar();
return 0;
}
