OpenTap.Python/OpenTap.Python.Examples/BasicInstrument.py at dev · MarcelMCF/OpenTap.Python

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"""

A basic example of how to define a instrument driver.

"""

from opentap import *

from System import Double, String

import OpenTap

import math

@attribute(OpenTap.Display("Basic Instrument", "A basic example of an instrument driver.", "Python Example"))

class BasicInstrument(Instrument):

CableLoss = property(Double, 3.0)\

.add_attribute(OpenTap.Unit("dB"))\

.add_attribute(OpenTap.Display("Cable Loss", "Cable loss of the instrument/DUT RF connection."))

IpAddress = property(String, "127.0.0.1")\

.add_attribute(OpenTap.Display("IP Address", "The IP Address of the instrument."))

def __init__(self):

"Set up the properties, methods and default values of the instrument."

super(BasicInstrument, self).__init__() # The base class initializer must be invoked.

self.count = 0

self.Name = "PyInstrument"

#Expose do_measurement in the API.

@method(Double)

def do_measurement(self):

"""Example of a measurement method."""

self.count = self.count + 1

print("Measuring " + str(self.count))

return math.sin(self.count * 4.31532) - self.CableLoss

def Open(self):

"""Called by TAP when the test plan starts."""

self.log.Info("Python Instrument Opened")

super().Open()

def Close(self):

"""Called by TAP when the test plan ends."""

self.log.Info("Python Instrument Closed")

super().Close()