double QxrdNIDAQPlugin::count(int /* chan */, double /* time */)
{
QMutexLocker lock(&m_Mutex);
static TaskHandle counterTask = 0;
int error;
float64 res = 0;
if (counterTask == 0) {
DAQmxErrChk(DAQmxCreateTask("counter", &counterTask));
DAQmxErrChk(DAQmxCreateCICountEdgesChan(counterTask,"Dev1/ctr2", "", DAQmx_Val_Rising, 0, DAQmx_Val_CountUp));
DAQmxErrChk(DAQmxSetCICountEdgesTerm(counterTask, "/Dev1/ctr2", "/Dev1/100MHzTimebase"));
DAQmxErrChk(DAQmxStartTask(counterTask));
}
if (counterTask) {
DAQmxErrChk(DAQmxReadCounterScalarF64(counterTask, 0, &res, NULL));
}
return res;
Error:
DAQmxClearTask(counterTask);
return res;
}
/******************************************************************************
**
** Acquisition des données des compteur et mise en forme pour
** déterminer l'origine
**
******************************************************************************/
int NI6211::readCounter()
{
float64 data[1];
int error=0;
DAQmxErrChk (DAQmxReadCounterScalarF64(*taskCounter,DAQmx_Val_WaitInfinitely,data,NULL));
Erreur:
checkError(error);
return data[0];
}
/******************************************************************************
**
** Acquisition des valeur de la tache d'acquisition de la vitesse
**
******************************************************************************/
double NI6211::readSpeed()
{
int error;
double speed[1];
/*------ DAQmx Read Code ------*/
DAQmxErrChk (DAQmxReadCounterScalarF64(*taskFreq,1,speed,NULL));
Erreur:
checkError(error);
return speed[0];
}