def open_transport(self):
if self.fp is None:
ser = serial.Serial(self.device, timeout=self.timeout)
if not ser.isOpen():
raise SystemError("Unable to open %s" % self.device)
self.fp = ser
self._flush()
self._negotiate()
def _execute(self):
connection = serial.Serial(port=SERIAL_PORT,
timeout=READ_TIMEOUT,
writeTimeout=WRITE_TIMEOUT)
connection.write(self.request.encode('ascii'))
return connection.readline().strip(b'\x04\n').decode('ascii')
def open_transport(self):
ser = serial.Serial(self.device, timeout=self.timeout)
if not ser.isOpen():
raise SystemError("Unable to open %s" % self.device)
self.fp = ser
