int32 Tweezers::CurrentRun(float64* curr, float64* indata, void* lpParam)
{
threadinfo* t = (threadinfo*)lpParam;
// config and start analog tast
DAQmxErrRtn(DAQmxCfgSampClkTiming(AOtaskHandle,"",10*float64(1/(*t->delta*1E-3)),DAQmx_Val_Rising,DAQmx_Val_FiniteSamps,(*t->cycles*10*t->nofFrames)));
DAQmxErrRtn(DAQmxCfgOutputBuffer(AOtaskHandle, t->nofFrames*10));
DAQmxErrRtn(DAQmxCfgDigEdgeStartTrig(AOtaskHandle, "PFI0", DAQmx_Val_Rising));
DAQmxErrRtn(DAQmxWriteAnalogF64(AOtaskHandle,t->nofFrames*10,0,10.0,DAQmx_Val_GroupByChannel,curr,&written,NULL));
DAQmxErrRtn(DAQmxStartTask(AOtaskHandle));
cerr << "\nTrying to allocate buffer for " << (*t->cycles * t->nofFrames) << " frames\n";
// config and start pulse channel with parameters set by user
//DAQmxErrRtn(DAQmxCfgImplicitTiming(DOtaskHandle, DAQmx_Val_FiniteSamps,*t->cycles * t->nofFrames));
DAQmxErrRtn(DAQmxCfgImplicitTiming(DOtaskHandle, DAQmx_Val_ContSamps,1));
DAQmxErrRtn(DAQmxCfgDigEdgeStartTrig(DOtaskHandle, "PFI0", DAQmx_Val_Rising));
DAQmxErrRtn(DAQmxStartTask(DOtaskHandle));
// config analog in task
DAQmxErrRtn(DAQmxCfgSampClkTiming(AItaskHandle,"Ctr0Out",100,DAQmx_Val_Rising,DAQmx_Val_FiniteSamps,*t->cycles * t->nofFrames));
DAQmxErrRtn(DAQmxStartTask(AItaskHandle));
// set trigger line to 1 - GO!
DAQmxWriteDigitalLines(TRtaskHandle,1,1,10,DAQmx_Val_GroupByChannel,trigdata[1],&written,NULL);
// wait until cam trigger task is done
DAQmxWaitUntilTaskDone(AOtaskHandle,-1);
// reset trigger line
DAQmxWriteDigitalLines(TRtaskHandle,1,1,10,DAQmx_Val_GroupByChannel,trigdata[0],&written,NULL);
// read protocol samples
DAQmxReadAnalogF64(AItaskHandle,*t->cycles * t->nofFrames,5.0,DAQmx_Val_GroupByChannel,indata,*t->cycles * t->nofFrames*2,&read,NULL);
//read indeed current
ofstream strom;
strom.open("newcurrent.txt", ofstream::app);
for(int i=0;i<t->nofFrames;i++)
strom<<i*(*t->delta*1E-3)<<"\t"<<indata[i]<<endl;
strom.close();
// stop tasks, disable trigger
DAQmxStopTask(AOtaskHandle);
DAQmxStopTask(DOtaskHandle);
DAQmxStopTask(AItaskHandle);
DAQmxDisableStartTrig(AOtaskHandle);
DAQmxDisableStartTrig(DOtaskHandle);
}
void NationalInstrumentsDAQ::setupAOChannels( float64 nrecords,
float64 record_frequency_Hz,
float64 vmin,
float64 vmax,
IDAQPhysicalChannel **channels,
int nchannels )
{ TaskHandle ao = 0;
int32 N = _config->ao_samples_per_waveform();
char terms[MAX_CHAN_STRING]= {0};
const char *dev = _config->name().c_str(),
*trig = _config->trigger().c_str();
char clk[MAX_CHAN_STRING] = {0};
float64 hz = computeSampleFrequency(nrecords,record_frequency_Hz),
lvl = _config->level_volts();
strcat(clk,_config->ctr().c_str());
strcat(clk,"InternalOutput");
// terminal names
TRY(nchannels<countof(terms));
{ const char* names[8]={0};
for(int i=0;i<nchannels;++i)
names[i]=channels[i]->name();
cat_terminal_names(terms,sizeof(terms),dev,names,nchannels);
}
// voltage range
{ f64 v[4];
DAQERR(DAQmxGetDevAOVoltageRngs(_config->name().c_str(),v,4));
vmin = MAX(vmin,v[2]);
vmax = MIN(vmax,v[3]);
}
ao=_ao.daqtask;
DAQERR(DAQmxCreateAOVoltageChan (ao,terms,NULL,vmin,vmax,DAQmx_Val_Volts,NULL));
DAQERR(DAQmxCfgSampClkTiming (ao,clk,hz,DAQmx_Val_Rising,DAQmx_Val_ContSamps,N));
DAQERR(DAQmxCfgOutputBuffer (ao,10*N));
DAQERR(DAQmxSetWriteRegenMode (ao,DAQmx_Val_DoNotAllowRegen));
DAQERR(DAQmxSetWriteRelativeTo (ao,DAQmx_Val_CurrWritePos));
DAQERR(DAQmxSetAODataXferMech (ao,terms,DAQmx_Val_DMA));
DAQERR(DAQmxSetAODataXferReqCond(ao,terms,DAQmx_Val_OnBrdMemNotFull));
DAQERR(DAQmxCfgAnlgEdgeStartTrig(ao,trig,DAQmx_Val_Rising,lvl));
return;
Error:
UNREACHABLE;
}
