add pty-gpib-emulator from github

pty-gpib-emulator/python/SourceMeasurement.py

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+##
+## <<<< Source Measurement Unit Emulators >>>>
+## by Aidan Macdonald (aidan.plenert.macdonald@gmail.com)
+##
+## Contains classes that emulate Source Measurement Units
+##
+
+import Device, Prologix
+
+## **** Source Measurement Class ****
+## by Aidan Macdonald (aidan.plenert.macdonald@gmail.com)
+##
+## General model of a basic Source Measurement Unit
+##
+
+class SourceMeasurement(Prologix.Prologix_GPIB_USB):
+    
+##%% Initialization SourceMeasurement()
+## Creates the framework
+##
+
+    def __init__(self):
+        Prologix.Prologix_GPIB_USB.__init__(self)
+
+
+
+## **** Keithley 2400 Class ****
+## by Aidan Macdonald
+## 
+## Support given for some commands
+##
+
+from random import uniform as rand
+
+class Keithley_2400(SourceMeasurement):
+
+##%% Initialization - Keithley_2400()
+## Loads commands
+##
+
+def __init__(self):
+    SourceMeasurement.__init__(self)
+    self.addCMD("IDN?", self.version)
+    self.addCMD("*RST", self.noth)
+    self.addCMD("*CLS", self.noth)
+    self.addCMD("ABOR", self.noth)
+    self.addCMD("*CLS", self.noth)
+    self.addCMD("SYST:BEEP:STAT", self.noth)
+    self.addCMD("SOURCE:CLEAR:AUTO", self.noth)
+    self.addCMD("FORM:ELEM", self.noth)
+    self.addCMD(":SOUR:FUNC", self.noth)
+    self.addCMD("read?", self.randFloats)
+
+## noth(pty, args)
+## Does nothing
+##
+def noth(self, fpl, args):
+    pass # Do nothing
+
+
+def version(self, fpl, args):
+    return 'KEITHLEY INSTRUMENTS INC.,MODEL 2400.EMULATOR'
+
+## randFloats(pty, args)
+## returns a string of random floats
+##
+def randFloats(self, fpl, args):
+    return str(rand(0, 2)) + ", " str(rand(0, 2))
+
+## handleCMD(fpl, cmd, args)
+## Modified to be case insensitive
+##
+def handleCMD(self, fpl, cmd, args):
+    SourceMeasurement.handleCMD(self, fpl, cmd.upper(), args)
+
+
+