StimulationsDAQmx.cpp

#include "stdafx.h"
#include "StimulationsDAQmx.h"
#include "parameters/Scope.h"
#include "ScopeDatatypes.h"
#include "helpers/ScopeException.h"

namespace scope {

StimulationsDAQmx::StimulationsDAQmx(const parameters::Scope& _params) {
    if ( _params.stimulation.enable.Value() ) {
        task.CreateTask();
        task.CreateDOChannel(_params.stimulation.channel, L"DigStimOut");
        int32 samplingtype = (_params.requested_mode()==DaqModeHelper::continuous)?DAQmx_Val_ContSamps:DAQmx_Val_FiniteSamps;
        // Calculate pixelrate and number of pixels to generate
        double pixelrate = 1/(_params.areas[ThisAreaOrMasterArea(0)]->daq.pixeltime()*1E-6);
        int32_t pixelsperchan = _params.areas[ThisAreaOrMasterArea(0)]->Currentframe().TotalPixels();;
        if ( _params.requested_mode() == DaqModeHelper::nframes )
            pixelsperchan = _params.areas[ThisAreaOrMasterArea(0)]->Currentframe().TotalPixels() * _params.areas[ThisAreaOrMasterArea(0)]->daq.requested_frames() * _params.areas[ThisAreaOrMasterArea(0)]->daq.averages();

        // Synchronize stimulation to the first output task
        task.ConfigureSampleTiming(_params.stimulation.timingsource(), pixelrate, pixelsperchan, samplingtype);
    }
}

StimulationsDAQmx::~StimulationsDAQmx() {
    task.Stop();
    task.Clear();
}

void StimulationsDAQmx::Start() {
    task.Start();
}

int32_t StimulationsDAQmx::Write(std::shared_ptr<const std::vector<uint8_t>> const _stimvec) {
    int32_t written = -1;
    try {
        written = task.WriteDigitalU8(_stimvec->data(), static_cast<int32_t>(_stimvec->size()));
    } catch (...) { ScopeExceptionHandler(__FUNCTION__); }
    return written;
}

}