static void Main(string[] args)
{
try
{
// open automatically the first available device
var hdwf = Dwf.DeviceOpen(-1);
// enable first channel FDwfAnalogInChannelEnableSet(hdwf, 0, true)
// set 0V offset
Dwf.AnalogInChannelOffsetSet(hdwf, 0, 0);
// set 5V pk2pk input range, -2.5V to 2.5V
Dwf.AnalogInChannelRangeSet(hdwf, 0, 5);
// start signal generation
Dwf.AnalogInConfigure(hdwf, false, false);
// wait at least 2 seconds with Analog Discovery for the offset to stabilize, before the first reading after device open or offset/range change
Wait(2);
for (int i = 0; i < 10; i++)
{
Wait(1);
// fetch analog input information from the device
var state = Dwf.AnalogInStatus(hdwf, false);
// read voltage input of first channel
var voltage = Dwf.AnalogInStatusSample(hdwf, 0);
cout.WriteLine(voltage.ToString() + " V", voltage);
}
// close all opened devices by this process
Dwf.DeviceCloseAll();
}
catch (Exception ex)
{
cout.WriteLine("Error: " + ex.Message);
}
}
static void Main(string[] args)
{
try
{
cout.WriteLine("Open automatically the first available device");
var hdwf = Dwf.DeviceOpen(-1);
// get the number of analog in channels
var cChannel = Dwf.AnalogInChannelCount(hdwf);
// enable channels
for (int c = 0; c < cChannel; c++)
{
Dwf.AnalogInChannelEnableSet(hdwf, c, true);
}
// set 5V pk2pk input range for all channels
Dwf.AnalogInChannelRangeSet(hdwf, -1, 5);
// 20MHz sample rate
Dwf.AnalogInFrequencySet(hdwf, 20000000.0);
// get the maximum buffer size
var cSamples = Dwf.AnalogInBufferSizeInfo(hdwf).Max;
Dwf.AnalogInBufferSizeSet(hdwf, cSamples);
// configure trigger
Dwf.AnalogInTriggerSourceSet(hdwf, TRIGSRC.DetectorAnalogIn);
Dwf.AnalogInTriggerAutoTimeoutSet(hdwf, 10.0);
Dwf.AnalogInTriggerChannelSet(hdwf, 0);
Dwf.AnalogInTriggerTypeSet(hdwf, TRIGTYPE.Edge);
Dwf.AnalogInTriggerLevelSet(hdwf, 1.0);
Dwf.AnalogInTriggerConditionSet(hdwf, TRIGCOND.RisingPositive);
// wait at least 2 seconds with Analog Discovery for the offset to stabilize, before the first reading after device open or offset/range change
Wait(2);
// start
Dwf.AnalogInConfigure(hdwf, false, true);
cout.WriteLine("Waiting for triggered or auto acquisition");
STATE sts;
do
{
sts = Dwf.AnalogInStatus(hdwf, true);
} while (sts != STATE.Done);
double[] rgdSamples = null;
// get the samples for each channel
for (int c = 0; c < cChannel; c++)
{
rgdSamples = Dwf.AnalogInStatusData(hdwf, c, cSamples);
// do something with it
}
cout.WriteLine("done");
// close the device
Dwf.DeviceClose(hdwf);
}
catch (Exception ex)
{
cout.WriteLine("Error: " + ex.Message);
}
}
static void Main(string[] args)
{
try
{
const int nSamples = 100000;
double[] rgdSamples = new double[nSamples];
int cSamples = 0;
bool fLost = false;
bool fCorrupted = false;
cout.WriteLine("Open automatically the first available device\n");
var hdwf = Dwf.DeviceOpen(-1);
Dwf.AnalogInChannelEnableSet(hdwf, 0, true);
Dwf.AnalogInChannelRangeSet(hdwf, 0, 5);
// recording rate for more samples than the device buffer is limited by device communication
Dwf.AnalogInAcquisitionModeSet(hdwf, ACQMODE.Record);
Dwf.AnalogInFrequencySet(hdwf, 50000.0);
// make sure we calculate record length with the real frequency
var hzAcq = Dwf.AnalogInFrequencyGet(hdwf);
Dwf.AnalogInRecordLengthSet(hdwf, 1.0 * nSamples / hzAcq);
// wait at least 2 seconds with Analog Discovery for the offset to stabilize, before the first reading after device open or offset/range change
Wait(2);
// start
Dwf.AnalogInConfigure(hdwf, false, true);
cout.WriteLine("Recording...");
while (cSamples < nSamples)
{
var sts = Dwf.AnalogInStatus(hdwf, true);
if (cSamples == 0 && (sts == STATE.Config || sts == STATE.Prefill || sts == STATE.Armed))
{
// Acquisition not yet started.
continue;
}
var stats = Dwf.AnalogInStatusRecord(hdwf);
cSamples += stats.Lost;
if (stats.Lost > 0)
{
fLost = true;
}
if (stats.Corrupt > 0)
{
fCorrupted = false;
}
if (stats.Available > 0)
{
var remaining = nSamples - cSamples;
var todo = Math.Min(remaining, stats.Available);
// get samples
Dwf.AnalogInStatusData(hdwf, 0, rgdSamples, cSamples, todo);
cSamples += stats.Available;
}
}
cout.WriteLine("done");
if (fLost)
{
cout.WriteLine("Samples were lost! Reduce frequency");
}
else if (fCorrupted)
{
cout.WriteLine("Samples could be corrupted! Reduce frequency");
}
// close the device
Dwf.DeviceClose(hdwf);
}
catch (Exception ex)
{
cout.WriteLine("Error: " + ex.Message);
}
}
