public void PreloadSamples(StreamType channelType, ushort channelNumber, IList <short> samples)
{
ITCMM.ITCChannelDataEx[] channelData = new ITCMM.ITCChannelDataEx[1];
channelData[0].ChannelType = (ushort)channelType;
channelData[0].ChannelNumber = channelNumber;
channelData[0].Value = (short)samples.Count;
channelData[0].Command = ITCMM.PRELOAD_FIFO_COMMAND_EX;
IntPtr samplesPtr = Marshal.AllocHGlobal(samples.Count * sizeof(short));
try
{
Marshal.Copy(samples.ToArray(), 0, samplesPtr, samples.Count);
channelData[0].DataPointer = samplesPtr;
uint err = ItcmmCall(() => ITCMM.ITC_ReadWriteFIFO(DevicePtr, 1, channelData));
if (err != ITCMM.ACQ_SUCCESS)
{
throw new HekaDAQException("Unable to push data", err);
}
}
finally
{
Marshal.FreeHGlobal(samplesPtr);
}
}
public IInputData ReadStreamAsyncIO(HekaDAQInputStream stream)
{
lock (this)
{
var channelData = new ITCMM.ITCChannelDataEx[]
{
new ITCMM.ITCChannelDataEx
{
ChannelNumber = stream.ChannelNumber,
ChannelType = (ushort)stream.ChannelType
}
};
uint err = ItcmmCall(() => ITCMM.ITC_AsyncIO(DevicePtr, 1, channelData));
if (err != ITCMM.ACQ_SUCCESS)
{
throw new HekaDAQException("Unable to read AsyncIO", err);
}
var inData =
new InputData(
new List <IMeasurement> {
new Measurement(channelData[0].Value, HekaDAQInputStream.DAQCountUnits)
},
new Measurement(0, "Hz"),
DateTimeOffset.Now)
.DataWithStreamConfiguration(stream, stream.Configuration);
return(inData.DataWithUnits(stream.MeasurementConversionTarget));
}
}
public int AvailableSamples(StreamType channelType, ushort channelNumber)
{
ItcmmCall(() => ITCMM.ITC_UpdateNow(DevicePtr, System.IntPtr.Zero));
ITCMM.ITCChannelDataEx[] channelData = new ITCMM.ITCChannelDataEx[1];
channelData[0].ChannelType = (ushort)channelType;
channelData[0].ChannelNumber = channelNumber;
uint err = ItcmmCall(() => ITCMM.ITC_GetDataAvailable(DevicePtr, 1, channelData));
if (err != ITCMM.ACQ_SUCCESS)
{
throw new HekaDAQException("Unable to get available FIFO points", err);
}
return(channelData[0].Value);
}
public int MaxAvailableSamples(StreamType channelType, ushort channelNumber)
{
ITCMM.ITCChannelDataEx info = new ITCMM.ITCChannelDataEx();
info.ChannelType = (ushort)channelType;
info.ChannelNumber = channelNumber;
var infoArr = new ITCMM.ITCChannelDataEx[1];
infoArr[0] = info;
uint err = ItcmmCall(() => ITCMM.ITC_GetFIFOInformation(DevicePtr, 1, infoArr));
if (err != ITCMM.ACQ_SUCCESS)
{
throw new HekaDAQException("Unable to get FIFO information", err);
}
info = infoArr[0];
return(info.Value);
}
public void ReadAvailableSamples()
{
HekkaDevice device = HekkaDevice.Zero;
uint err = ITCMM.ITC_OpenDevice(ITCMM.USB18_ID, 0, ITCMM.SMART_MODE, out device);
if (err != ITCMM.ACQ_SUCCESS)
{
Assert.Fail(ErrorDescription.ErrorString(err));
}
try
{
//ITCMM.HWFunction hwf = new ITCMM.HWFunction();
err = ITCMM.ITC_InitDevice(device, IntPtr.Zero); // ref hwf);
ITCMM.ITCPublicConfig config = new ITCMM.ITCPublicConfig();
config.OutputEnable = 1;
err = ITCMM.ITC_ConfigDevice(device, ref config);
if (err != ITCMM.ACQ_SUCCESS)
{
Assert.Fail(ErrorDescription.ErrorString(err));
}
Assert.NotNull(device);
ITCMM.ITCChannelInfo channelInfo = new ITCMM.ITCChannelInfo();
channelInfo.ChannelType = ITCMM.H2D;
channelInfo.ChannelNumber = 0;
channelInfo.SamplingRate = 1000.0;
Assert.AreEqual(System.IntPtr.Zero, channelInfo.FIFOPointer);
Assert.AreEqual(ITCMM.ACQ_SUCCESS,
ITCMM.ITC_SetChannels(device, 1, new ITCMM.ITCChannelInfo[] { channelInfo })
);
Assert.AreEqual(ITCMM.ACQ_SUCCESS,
(int)ITCMM.ITC_UpdateChannels(device)
);
ITCMM.ITCChannelDataEx info = new ITCMM.ITCChannelDataEx();
info.ChannelType = ITCMM.H2D;
info.ChannelNumber = 0;
ITCMM.ITCChannelDataEx[] arr = new ITCMM.ITCChannelDataEx[] { info };
err = ITCMM.ITC_GetDataAvailable(device, 1, arr);
if (err != ITCMM.ACQ_SUCCESS)
{
Assert.Fail(ErrorDescription.ErrorString(err));
}
info = arr[0];
Assert.That(info.Value, Is.GreaterThanOrEqualTo(0));
}
finally
{
err = ITCMM.ITC_CloseDevice(device);
Assert.AreEqual(ITCMM.ACQ_SUCCESS,
err,
ErrorDescription.ErrorString(err)
);
}
}
public void AsyncIORoundTrip()
{
HekkaDevice device = HekkaDevice.Zero;
uint err = ITCMM.ITC_OpenDevice(ITCMM.USB18_ID, 0, ITCMM.SMART_MODE, out device);
Assert.AreEqual(ITCMM.ACQ_SUCCESS,
err,
ErrorDescription.ErrorString(err)
);
try
{
err = ITCMM.ITC_InitDevice(device, IntPtr.Zero); //ref sHWFunction);
Assert.AreEqual(ITCMM.ACQ_SUCCESS,
err,
ErrorDescription.ErrorString(err)
);
uint expectedValue = 8000;
var channelData = new ITCMM.ITCChannelDataEx[] {
new ITCMM.ITCChannelDataEx {
ChannelNumber = 0,
ChannelType = ITCMM.OUTPUT_GROUP,
Value = (short)expectedValue
}
};
err = ITCMM.ITC_AsyncIO(device, 1, channelData);
if (err != ITCMM.ACQ_SUCCESS)
{
throw new HekaDAQException("Unable to write AsyncIO", err);
}
channelData = new ITCMM.ITCChannelDataEx[] {
new ITCMM.ITCChannelDataEx {
ChannelNumber = 0,
ChannelType = ITCMM.INPUT_GROUP,
Value = (short)expectedValue
}
};
err = ITCMM.ITC_AsyncIO(device, 1, channelData);
if (err != ITCMM.ACQ_SUCCESS)
{
throw new HekaDAQException("Unable to write AsyncIO", err);
}
var actualValue = channelData[0].Value;
Assert.That(actualValue, Is.InRange(expectedValue - 50, expectedValue + 50));
}
finally
{
err = ITCMM.ITC_CloseDevice(device);
Assert.AreEqual(ITCMM.ACQ_SUCCESS,
err,
ErrorDescription.ErrorString(err)
);
}
}
