Generic module describes generic waves and generator .

c54e6c48 · Federico Asara · eaec8eef · c54e6c48 · c54e6c48 · c54e6c48
Commit c54e6c48 authored Aug 19, 2011 by Federico Asara
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Generator.py Pain/Generic/Generator.py +44 -0

Waveform.py Pain/Generic/Waveform.py +8 -0

__init__.py Pain/Generic/__init__.py +5 -0

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--- a/Pain/Generic/Generator.py
+++ b/Pain/Generic/Generator.py
+import serial
+import time
+    
+def Property(func):
+    return property(**func())
+    
+"""This class should manage a generic waveform generator"""
+class Generator(serial.Serial):
+    def __init__(self, device = "/dev/ttyUSB0", bauds = 57600, to = 2, interCharTimeout=1):
+        serial.Serial.__init__(self, device, bauds, timeout = to, interCharTimeout = 1)
+    
+    def command(self, what):
+        return self.write("%s\n" % what)
+    
+    @Property
+    def output():
+        doc = "Output status of the generator"
+
+        def fget(self):
+            self.command("OUTP?")
+            output = self.read(2)[0]
+            
+            return output == "1"    
+        
+        def fset(self, status):
+            if type(status) is not bool: 
+                return
+            
+            self.command("OUTP %d" % (1 if status else 0))
+        
+        return locals()
+    
+    def sine(self, frequency, amplitude, dc = 0, freqm = 'HZ', ampm = 'VPP', dcm = 'V'):
+        self.command("APPL:SIN %.2f %s, %.2f %s, %.2f %s" % (frequency, freqm, amplitude, ampm, dc, dcm))
+     
+    def sweep(self, interval, frequencies, amplitude, dc = 0, freqm = 'HZ', ampm = 'VPP', dcm = 'V', callback = None):
+        
+        for f in frequencies:
+            self.sine(f, amplitude, dc, freqm, ampm, dcm)
+            time.sleep(interval)
+            
+            if callback is not None:
+                callback(f)
+        
--- a/Pain/Generic/Waveform.py
+++ b/Pain/Generic/Waveform.py
+def Property(func):
+    return property(**func())
+    
+class Waveform(object):
+    def apply(self):
+        return ""
+    
+
--- a/Pain/Generic/__init__.py
+++ b/Pain/Generic/__init__.py
+__author__="Federico"
+__date__ ="$Aug 17, 2011 4:43:08 PM$"
+
+# PAIn: Python ADC Interface
+