public void LoopPinTest()
{
Stopwatch timer = new Stopwatch();
long expectedTime;
if (FX3.ActiveFX3.BoardType < FX3BoardType.iSensorFX3Board_C)
{
Console.WriteLine("The connected boards do not have loop back pins");
return;
}
for (double freq = 100; freq < 2000; freq += 100)
{
Console.WriteLine("Setting " + freq.ToString() + "Hz PWM on loop pin 1");
FX3.StartPWM(freq, 0.5, FX3.FX3_LOOPBACK1);
Assert.AreEqual(freq, FX3.MeasurePinFreq(FX3.FX3_LOOPBACK2, 1, 1000, 100), 0.02 * freq, "ERROR: Invalid value measured on loop pin 2");
FX3.StopPWM(FX3.FX3_LOOPBACK1);
Console.WriteLine("Setting " + freq.ToString() + "Hz PWM on loop pin 2");
FX3.StartPWM(freq, 0.5, FX3.FX3_LOOPBACK2);
Assert.AreEqual(freq, FX3.MeasurePinFreq(FX3.FX3_LOOPBACK1, 1, 1000, 100), 0.02 * freq, "ERROR: Invalid value measured on loop pin 1");
FX3.StopPWM(FX3.FX3_LOOPBACK2);
}
Console.WriteLine("Testing SPI triggering with loop back pins...");
FX3.StartPWM(100, 0.5, FX3.FX3_LOOPBACK1);
FX3.DrPin = FX3.FX3_LOOPBACK2;
FX3.DrActive = true;
expectedTime = 1000 * 1000 / 100;
timer.Start();
FX3.TransferArray(new uint[1], 1, 1000);
timer.Stop();
Console.WriteLine("Elapsed stream time " + timer.ElapsedMilliseconds.ToString() + "ms");
Assert.AreEqual(expectedTime, timer.ElapsedMilliseconds, 0.05 * expectedTime, "ERROR: Invalid stream time");
}
public void PinFreqMeasureTest()
{
Console.WriteLine("Starting pin frequency measure test...");
const double MIN_FREQ = 5;
const double MAX_FREQ = 10000;
double measuredFreq, expectedFreq;
Console.WriteLine("Sweeping PWM duty cycle with fixed frequency...");
expectedFreq = 4000;
for (double dutyCycle = 0.02; dutyCycle < 0.98; dutyCycle += 0.01)
{
Console.WriteLine("Testing duty cycle of " + dutyCycle.ToString());
FX3.StartPWM(4000, dutyCycle, FX3.DIO3);
measuredFreq = FX3.MeasurePinFreq(FX3.DIO4, 1, 500, 5);
Console.WriteLine("Pin freq measured on DIO2: " + measuredFreq.ToString() + "Hz");
Assert.AreEqual(expectedFreq, measuredFreq, 0.02 * expectedFreq, "ERROR: Invalid freq read back on DIO2");
}
FX3.StopPWM(FX3.DIO3);
Console.WriteLine("Sweeping freq range...");
for (expectedFreq = MIN_FREQ; expectedFreq < MAX_FREQ; expectedFreq = expectedFreq * 1.08)
{
Console.WriteLine("Testing PWM freq of " + expectedFreq.ToString() + "Hz");
FX3.StartPWM(expectedFreq, 0.5, FX3.DIO3);
measuredFreq = FX3.MeasurePinFreq(FX3.DIO4, 1, 2000, 3);
Console.WriteLine("Pin freq measured on DIO4: " + measuredFreq.ToString() + "Hz");
Assert.AreEqual(expectedFreq, measuredFreq, 0.02 * expectedFreq, "ERROR: Invalid freq read back on DIO4");
FX3.StopPWM(FX3.DIO3);
FX3.StartPWM(expectedFreq, 0.5, FX3.DIO4);
measuredFreq = FX3.MeasurePinFreq(FX3.DIO3, 1, 2000, 3);
Console.WriteLine("Pin freq measured on DIO3: " + measuredFreq.ToString() + "Hz");
Assert.AreEqual(expectedFreq, measuredFreq, 0.02 * expectedFreq, "ERROR: Invalid freq read back on DIO3");
FX3.StopPWM(FX3.DIO4);
}
Console.WriteLine("Testing averaging...");
expectedFreq = 4000;
FX3.StartPWM(expectedFreq, 0.5, FX3.DIO3);
for (ushort average = 1; average < 1000; average += 2)
{
Console.WriteLine("Testing pin freq measure with " + average.ToString() + " averages...");
measuredFreq = FX3.MeasurePinFreq(FX3.DIO4, 1, 1000, average);
Console.WriteLine("Pin freq measured on DIO4: " + measuredFreq.ToString() + "Hz");
Assert.AreEqual(expectedFreq, measuredFreq, 0.02 * expectedFreq, "ERROR: Invalid freq read back on DIO4");
}
}
public void PWMPinInfoTest()
{
Console.WriteLine("Starting pin PWM info test...");
int exCount;
PinPWMInfo info;
Console.WriteLine("Testing default PWM pin info for each pin...");
foreach (PropertyInfo prop in FX3.GetType().GetProperties())
{
if (prop.PropertyType == typeof(AdisApi.IPinObject))
{
Assert.AreEqual(0, FX3.GetPinPWMInfo((AdisApi.IPinObject)prop.GetValue(FX3)).IdealFrequency, "ERROR: Expected PWM pins to be disabled for all pins initially");
}
}
Console.WriteLine("Testing PWM pin info for each pin...");
foreach (PropertyInfo prop in FX3.GetType().GetProperties())
{
if (prop.PropertyType == typeof(AdisApi.IPinObject))
{
if (((AdisApi.IPinObject)prop.GetValue(FX3)).pinConfig % 8 != 0)
{
FX3.StartPWM(2000, 0.5, (AdisApi.IPinObject)prop.GetValue(FX3));
info = FX3.GetPinPWMInfo((AdisApi.IPinObject)prop.GetValue(FX3));
Assert.AreEqual(((AdisApi.IPinObject)prop.GetValue(FX3)).pinConfig, info.FX3GPIONumber, "ERROR: Invalid GPIO Number");
Assert.AreEqual(info.FX3GPIONumber % 8, info.FX3TimerBlock, "ERROR: Invalid FX3 timer block");
Assert.AreEqual(2000, info.IdealFrequency, "ERROR: Invalid frequency");
Assert.AreEqual(0.5, info.IdealDutyCycle, "ERROR: Invalid duty cycle");
FX3.StopPWM((AdisApi.IPinObject)prop.GetValue(FX3));
}
else
{
exCount = 0;
try
{
FX3.StartPWM(2000, 0.5, (AdisApi.IPinObject)prop.GetValue(FX3));
}
catch (Exception e)
{
Console.WriteLine(e.Message);
exCount = 1;
}
Assert.AreEqual(1, exCount, "ERROR: Expected exception to be thrown for pins which cannot run PWM");
}
}
}
Console.WriteLine("Sweeping PWM freq...");
{
for (double freq = 0.5; freq < 100000; freq = freq * 1.1)
{
FX3.StartPWM(freq, 0.5, FX3.DIO1);
Assert.AreEqual(freq, FX3.GetPinPWMInfo(FX3.DIO1).IdealFrequency, "ERROR: Invalid IdealFrequency");
Assert.AreEqual(freq, FX3.GetPinPWMInfo(FX3.DIO1).RealFrequency, 0.001 * freq, "ERROR: Invalid RealFrequency");
}
}
Console.WriteLine("Sweeping PWM duty cycle at 1KHz...");
for (double dutyCycle = 0.01; dutyCycle < 1.0; dutyCycle += 0.01)
{
FX3.StartPWM(1000, dutyCycle, FX3.DIO1);
Assert.AreEqual(dutyCycle, FX3.GetPinPWMInfo(FX3.DIO1).IdealDutyCycle, "ERROR: Invalid ideal duty cycle");
Assert.AreEqual(dutyCycle, FX3.GetPinPWMInfo(FX3.DIO1).RealDutyCycle, 0.001 * dutyCycle, "ERROR: Invalid real duty cycle");
}
}
