public double[] StartInstantAI()
{
instantAiCtrl = new InstantAiCtrl();
instantAiCtrl.SelectedDevice = new DeviceInformation(deviceCode);
if (!instantAiCtrl.Initialized)
{
throw new Exception("No device be selected or device open failed!");
}
double[] data = new double[4];
ErrorCode er0 = instantAiCtrl.Read(0, out data[0]);
ErrorCode er1 = instantAiCtrl.Read(1, out data[1]);
ErrorCode er2 = instantAiCtrl.Read(2, out data[2]);
ErrorCode er3 = instantAiCtrl.Read(3, out data[3]);
return(data);
}
static void Main(string[] args)
{
//-----------------------------------------------------------------------------------
// Configure the following three parameters before running the demo
//-----------------------------------------------------------------------------------
//The default device of project is demo device, users can choose other devices according to their needs.
//string deviceDescription = "DemoDevice,BID#0";
string deviceDescription = "USB-4702,BID#0";
int startChannel = 4;
const int channelCount = 1;
ErrorCode errorCode = ErrorCode.Success;
// Ilosc probek = 250, Czas akwizycji - 1s, Czas miedzy probkami - 1/256 s, Czestotliwosc probkowania 256 Hz
// Spelnia Twierdzenie Kotielnikowa-Shannona (badany sygnal ma czestliwosc 100 Hz)
int sampleIter = 0;
int sampleCount = 256;
float sampleFrequency = 100; //[Hz]
float timeSample = (1f / sampleFrequency) * 1000;
int timeSample_i = (int)Math.Round(timeSample); //[ms]
// int convertClkRatePerChan = 1000;
// Step 1: Create a 'InstantAiCtrl' for Instant AI function.
InstantAiCtrl instantAIContrl = new InstantAiCtrl();
try
{
// Step 2: Select a device by device number or device description and specify the access mode.
// in this example we use AccessWriteWithReset(default) mode so that we can
// fully control the device, including configuring, sampling, etc.
instantAIContrl.SelectedDevice = new DeviceInformation(deviceDescription);
// Step 3: Read samples and do post-process, we show data here.
Console.WriteLine(" InstantAI is in progress...\n");
int channelCountMax = instantAIContrl.Features.ChannelCountMax;
double[] scaledData = new double[channelCount];//the count of elements in this array should not be less than the value of the variable channelCount
for (int i = 0; i < channelCount; ++i)
{
Console.Write(" channel: {0}", (i % channelCount + startChannel) % channelCountMax);
}
Console.WriteLine();
using (System.IO.StreamWriter file =
new System.IO.StreamWriter(@"probki.txt"))
do
{
// read samples, just scaled data in this demo
errorCode = instantAIContrl.Read(startChannel, channelCount, scaledData);
if (BioFailed(errorCode))
{
throw new Exception();
}
// process the acquired samples
for (int i = 0; i < channelCount; ++i)
{
Console.Write(" {0,11:f8}", scaledData[i]);
file.WriteLine(" {0,11:f8}", scaledData[i]);
}
Console.Write("\n");
sampleIter++;
Thread.Sleep(timeSample_i);
} while (sampleIter < sampleCount);
}
catch (Exception e)
{
// Something is wrong
string errStr = BioFailed(errorCode) ? " Some error occurred. And the last error code is " + errorCode.ToString()
: e.Message;
Console.WriteLine(errStr);
}
finally
{
// Step 4: Close device and release any allocated resource.
instantAIContrl.Dispose();
Console.ReadKey(false);
}
}