def _retrieve_chunk(self, ser, chunk_start, retry, chunk_size = 16):
reg_des = registers.RegisterDescription((chunk_start, chunk_size))
message = reg_des.create_get_registers(network_id = self.nid, destination_id = self.uid)
tries = 0
while tries < retry:
pim.write_message(ser, message)
pim_message = True
while pim_message is not None:
pim_message = pim.read(ser)
if pim_message and pim_message.type == pim.PIMMessage.UPBMESSAGE:
message = UPBMessage.create_from_packet(pim_message.packet)
logging.debug(str(message))
if reg_des.is_report(message):
return message.arguments[1:]
tries += 1
#send a command over the serial port
#and print out resposne
import serial
from upb.pim import write_message, read
import upb
ser = serial.Serial('/dev/ttyUSB0', '4800')
msg = upb.UPBGoToLevel(100)
msg.destination_id = 45
print(read(ser).packet)
def read_io(self):
message = read(self.io_fd)
if message.type == PIMMessage.UPBMESSAGE:
self._update_model_with_packet(message.packet)
