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/*********************************************************************
*
* Example program:
* DAQOp.c
*
* Description:
* Read a waveform from one analog input channel using internal
* timing (uses high-level NI-DAQ functions)
*
* Example Category:
* AI
*
* Example Task Types:
* BUF, 1CH, BURST, IMMED, SYNC, INTTRIG
*
* List of key parameters:
* lTimeout, dSampRate
*
* [Since variables are hardcoded, there is no guarantee that this
* program will work for your setup. This example is simply
* presented as a code snippet of how you can use NI-DAQ functions
* to perform a task.]
*
* List of NI-DAQ Functions used in this example:
* Timeout_Config, NIDAQErrorHandler, DAQ_Op, DAQ_VScale
*
* [NOTE: For further details on each NI-DAQ function, please refer
* to the NI-DAQ On-Line Help (NIDAQPC.HLP).]
*
* Pin Connection Information:
* Connect your analog signal to AI channel 1. The default analog
* input mode for the DAQ device will be used.
*
* [For further I/O connection details, please refer to your hardware
* User Manual.]
*
* [For further details on how to run this example, please refer to
* the NI-DAQ Examples On-Line Help (NIDAQEx.HLP).]
*
*********************************************************************/
/*
* Includes:
*/
#include "nidaqex.h"
/*
* Main:
*/
void main(void)
{
/*
* Local Variable Declarations:
*/
i16 iStatus = 0;
i16 j = 0;
i16 iRetVal = 0;
i16 iDevice = 1;
i32 lTimeout = 180;
i16 iChan = 2;
i16 iGain = 1;
f64 dSampRate = 1000.0;
u32 ulCount = 100;
f64 dGainAdjust = 1.0;
f64 dOffset = 0.0;
static i16 piBuffer[100] = {0};
static f64 pdVoltBuffer[100] = {0.0};
i16 iIgnoreWarning = 0;
/* This sets a timeout limit (#Sec * 18ticks/Sec) so that if there
is something wrong, the program won't hang on the DAQ_Op call. */
iStatus = Timeout_Config(iDevice, lTimeout);
iRetVal = NIDAQErrorHandler(iStatus, "Timeout_Config", iIgnoreWarning);
/* Acquire data from a single channel. */
/* HINT: You can easily replace this with the SCAN_Op function. */
iStatus = DAQ_Op(iDevice, iChan, iGain, piBuffer, ulCount, dSampRate);
iRetVal = NIDAQErrorHandler(iStatus, "DAQ_Op", iIgnoreWarning);
iStatus = DAQ_VScale(iDevice, iChan, iGain, dGainAdjust, dOffset,
ulCount, piBuffer, pdVoltBuffer);
iRetVal = NIDAQErrorHandler(iStatus, "DAQ_VScale", iIgnoreWarning);
printf(" The data is available in 'pdVoltBuffer'.\n");
for (j = 0; j < 100 ; j = j + 5)
{
printf ("\n%f %f %f ",pdVoltBuffer[j],pdVoltBuffer[j+1],pdVoltBuffer[j+2]);
printf ("%f %f",pdVoltBuffer[j+3],pdVoltBuffer[j+4]);
}
}
/* End of program */
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