Beispiel #1
0
	def do_build(self):
		packet = self.start
		packet += self.identity
		packet += self.control
		packet += self.sequence
		packet += self.__length__
		packet += str(self.__data__)
		packet += crc_str(packet)
		return packet
Beispiel #2
0
 def do_build(self):
     packet = self.start
     packet += self.identity
     packet += self.control
     packet += self.sequence
     packet += self.__length__
     packet += str(self.__data__)
     packet += crc_str(packet)
     return packet
Beispiel #3
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 def __repr__(self):
     if isinstance(self.__data__, C1218Request):
         repr_data = repr(self.__data__)
     else:
         repr_data = '0x' + str(self.__data__).encode('hex')
     return '<C1218Packet data=' + repr_data + ' data_len=' + str(
         len(self.__data__)) + ' crc=0x' + crc_str(
             self.start + self.identity + self.control + self.sequence +
             self.__length__ + str(self.__data__)).encode('hex') + ' >'
Beispiel #4
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	def parse(data):
		if len(data) < 8:
			raise Exception('invalid data (size)')
		if data[0] != '\xee':
			raise Exception('invalid start byte')
		identity = data[1]
		control = ord(data[2])
		sequence = data[3]
		length = struct.unpack('>H', data[4:6])[0]
		chksum = data[-2:]
		if crc_str(data[:-2]) != chksum:
			raise Exception('invalid check sum')
		data = data[6:-2]
		if ord(data[0]) in C1218_REQUEST_IDS:
			data = C1218_REQUEST_IDS[ord(data[0])].parse(data)
		frame = C1218Packet(data, control, length)
		frame.identity = identity
		frame.sequence = sequence
		return frame
Beispiel #5
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 def parse(data):
     if len(data) < 8:
         raise Exception('invalid data (size)')
     if data[0] != '\xee':
         raise Exception('invalid start byte')
     identity = data[1]
     control = ord(data[2])
     sequence = data[3]
     length = struct.unpack('>H', data[4:6])[0]
     chksum = data[-2:]
     if crc_str(data[:-2]) != chksum:
         raise Exception('invalid check sum')
     data = data[6:-2]
     if ord(data[0]) in C1218_REQUEST_IDS:
         data = C1218_REQUEST_IDS[ord(data[0])].parse(data)
     frame = C1218Packet(data, control, length)
     frame.identity = identity
     frame.sequence = sequence
     return frame
Beispiel #6
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	def __repr__(self):
		if isinstance(self.__data__, C1218Request):
			repr_data = repr(self.__data__)
		else:
			repr_data = '0x' + str(self.__data__).encode('hex')
		return '<C1218Packet data=' + repr_data + ' data_len=' + str(len(self.__data__)) + ' crc=0x' + crc_str(self.start + self.identity + self.control + self.sequence + self.__length__ + str(self.__data__)).encode('hex') + ' >'