Closedown

script/test/ReturnBug.py

@@ -27,6 +27,27 @@ else:
     lat  =  args[4]
     
 
+class AnalogOutput(RegisterBase):    
+    def doRead(self):
+        return self.val if hasattr(self, 'val') else 0.0 
+
+    def doWrite(self, val):
+        self.val = val
+
+class AnalogInput(ReadonlyRegisterBase):
+    def doRead(self):
+        time.sleep(0.001)
+        self.val = to_array(self.calc(), 'd')
+        return self.val
+class SinusoidSample(AnalogInput):
+    def calc(self):
+        self.x = self.x + 0.1 if hasattr(self, 'x') else 0.0
+        noise = (random.random() - 0.5) / 10.0
+        return math.sin(self.x)  + noise        
+
+add_device(AnalogOutput("ao1"), True)
+add_device(SinusoidSample("ai1"), True)
+
 r = lscan(ao1, ai1, start, stop, step, latency=lat)
 
 #Setting the return value