- throw exception if command is not accepted

git-svn-id: http://moon:8086/svn/projects/HendiControl@367 fda53097-d464-4ada-af97-ba876c37ca34

Control/brewpi/hendiCtrl.py

@@ -113,10 +113,11 @@ class HendiCtrl():
 	def cmd(self, req):
 		self.__write(req)
 		rsp = self.__read()
-		if "OK" in rsp[0]:
-			return rsp[1]
-		return None
-	
+		if "OK" not in rsp[0]:
+			raise Exception("Command not accepted")
+
+		return rsp[1]
+		
 	def getCapabilties(self):
 		return self.caps
 
@@ -187,6 +188,7 @@ if __name__ == '__main__':
 	hendi.getSoftwareIdentifier()
 	hendi.getSoftwareVersion()
 
+	print ("Test converters")
 	for pwr in range(500, 3600, 100):
 		print("pwr", pwr)
 		digits = hendi.toDigits(pwr)
@@ -194,19 +196,17 @@ if __name__ == '__main__':
 		power = hendi.toWatts(digits)
 		print("power", power)
 
-	try:	
-		hendi.remoteEnable(True)
-		hendi.setSwitch(1)
-		time.sleep(10.0)
-		for pwr in range(500, 3600, 100):
-			hendi.setPowerWatts(pwr)
-			pw = hendi.getPowerWatts()
-			print("power_w", pw)
-			time.sleep(1.0)
+	print ("Test Hendi")
+	hendi.remoteEnable(True)
+	hendi.setSwitch(1)
+	time.sleep(10.0)
+	for pwr in range(500, 3600, 100):
+		hendi.setPowerWatts(pwr)
+		pw = hendi.getPowerWatts()
+		print("power_w", pw)
+		time.sleep(1.0)
+
 
-	except:
-		pass
-	
 	hendi.setSwitch(0)
 	hendi.remoteEnable(False)