public void VoltageGenerationAndMeasurementTest(double voltage)
{
// Add testcase name and description
Vector.CANoe.TFS.Report.TestCaseTitle("Voltage generation and measurement test at " + voltage.ToString() + " Volts.");
Vector.CANoe.TFS.Report.TestCaseDescription("Testing voltage generation and measurement at " + voltage.ToString() + " Volts.");
// Step 1: Activate voltage generation on the VT2004 module (channel 1)
// Get the channel interfaces
IVT2004Channel Stimulus_Ch1 = vts.GetChannel("Stimulus_Ch1") as IVT2004Channel;
IVT1004Channel Load_Ch1 = vts.GetChannel("Load_Ch1") as IVT1004Channel;
// Set simulation mode to voltage generation and the output curve type to be a constant
Stimulus_Ch1.SetStimulationMode(StimulationMode.Voltage, CurveType.Constant);
// Choose an output voltage
Stimulus_Ch1.Voltage.Value = voltage;
// Start generating the signal
Stimulus_Ch1.StartStimulation();
// Step 2: perform the actual test
// Wait 100 ms to make sure the above settings take effect
Vector.CANoe.Threading.Execution.Wait(100);
// Check if a voltage of +- 1V around given parameter can be measured
if (Math.Abs(voltage - Load_Ch1.Cur.Value) > 1.0)
{
// Test failed. No voltage or a wrong voltage was measured
Vector.CANoe.TFS.Report.TestStepFail("No voltage or a wrong voltage (" + Load_Ch1.Cur.Value + "V) was measured");
}//end if
}
public void PWMGenerationAndMeasurement(double frequency)
{
// Add testcase name and description
Vector.CANoe.TFS.Report.TestCaseTitle("PWM generation and measurement test at " + frequency.ToString() + " Hz.");
Vector.CANoe.TFS.Report.TestCaseDescription("Testing PWM generation and measurement at " + frequency.ToString() + " Hz.");
// Step 1: Activate PWM generation on the VT2004 module (channel 1)
// Get the channel interfaces
IVT2004Channel Stimulus_Ch1 = vts.GetChannel("Stimulus_Ch1") as IVT2004Channel;
IVT1004Channel Load_Ch1 = vts.GetChannel("Load_Ch1") as IVT1004Channel;
// Set simulation mode to voltage generation and the output curve type to be a PWM signal
Stimulus_Ch1.SetStimulationMode(StimulationMode.Voltage, CurveType.PWM);
// Specify the PWM signal (frequency, low and high voltage, duty cycle)
Stimulus_Ch1.PWMFreq.Value = frequency;
Stimulus_Ch1.PWMVoltageHigh.Value = 5.0;
Stimulus_Ch1.PWMVoltageLow.Value = 0.0;
Stimulus_Ch1.PWMDC.Value = 50;
// Start generating the signal
Stimulus_Ch1.StartStimulation();
// Step 2: Activate PWM measurement on the VT1004 module (channel 1)
// Set the threshold voltage to 3V
Load_Ch1.PWMThreshold.Value = 3.0;
// Set the duration of each measurement
Load_Ch1.PWMMeasurementDuration.Value = 0.05;
// Step 3: perform the actual test
// Wait 500 ms to make sure the above settings take effect
Vector.CANoe.Threading.Execution.Wait(500);
// Check if the right frequency can be measured (with a tolerance of 5%)
double allowedDeviation = 0.05;
if ((frequency > Load_Ch1.PWMFreq.Value * (1.0 + allowedDeviation)) ||
(frequency < Load_Ch1.PWMFreq.Value * (1.0 - allowedDeviation)))
{
// Test failed. No frequency or a wrong frequency was measured
Vector.CANoe.TFS.Report.TestStepFail("No frequency or a wrong frequency (" + Load_Ch1.PWMFreq.Value.ToString() + "Hz) was measured");
}//end if
}
