def check_permutations(self, data):
for p in list(permutations(data)):
strData = ""
for i in range(4):
strData += p[i]
decoded_data = decodeCrc16(strData)
if decoded_data[4] == decoded_data[5]:
return decoded_data
return None
def run(self):
while(1):
data = self.communicator.read(1)
self.data.append(data)
if len(self.data) == 4:
self.window.appendRaw(self.data)
strData = ""
for i in range(4):
strData += self.data[i]
decoded_data = decodeCrc16(strData)
# Good CRC
if decoded_data[4] == decoded_data[5]:
print "Good CRC"
for i in range(4):
self.data.pop(0)
heading = decoded_data[1]
depth = decoded_data[2]
light = decoded_data[3]
crc = decoded_data[4]
calculated_crc = decoded_data[5]
first_byte = decoded_data[6]
second_byte = decoded_data[7]
first_crc = decoded_data[8]
second_crc = decoded_data[9]
self.window.appendParsed(heading, depth, light)
self.window.setHeading(heading)
self.window.setDepth(depth)
self.window.setLight(ON if light == 1 else OFF)
self.serializer.write([heading, depth, light, crc, calculated_crc, first_byte, second_byte, first_crc, second_crc])
else:
permutated_data = None
#permutated_data = self.check_permutations(self.data)
if permutated_data != None:
print "A permutation was good!"
heading = decoded_data[1]
depth = decoded_data[2]
light = decoded_data[3]
crc = decoded_data[4]
calculated_crc = decoded_data[5]
first_byte = decoded_data[6]
second_byte = decoded_data[7]
first_crc = decoded_data[8]
second_crc = decoded_data[9]
self.window.appendParsed(heading, depth, light)
self.window.setHeading(heading)
self.window.setDepth(depth)
self.window.setLight(ON if light == 1 else OFF)
self.serializer.write([heading, depth, light, crc, calculated_crc, first_byte, second_byte, first_crc, second_crc])
else:
discarded_data = self.data.pop(0)
print "Did not found permutation, discarded " + discarded_data
print "Exited acquisition loop"