def send_bytes(self, cmd_bytes):
# add checksum to commands
combo_bytes = cmd_bytes[:]
combo_bytes.append(rfm.acs(cmd_bytes))
self.tx_zmq.send_framed_bytes(
preamble=self.downlink_bb_params.preamble_bytes,
byte_list=combo_bytes,
verbose=self.verbose)
def recv_bytes(self, verbose=False):
# wait for valid transmission
raw_data = self.rx_zmq.poll_bytes(self.verbose)
# checksum
cs_computed = rfm.acs(raw_data[:-1])
if verbose:
print "Raw data bytes:",
print raw_data
print "Checksum: {}".format(cs_computed)
# if we have a valid command, reconfigure the flowgraph
if cs_computed == raw_data[-1]:
return raw_data[:-1]
else:
return []
def recv_bytes(self, verbose=False):
# wait for valid transmission
raw_data = self.rx_zmq.poll_bytes(self.verbose)
# checksum
cs_computed = rfm.acs(raw_data[:-1])
if verbose:
print "Raw data bytes:",
print raw_data
print "Checksum: {}".format(cs_computed)
# if we have a valid payload, else return empty list
if cs_computed == raw_data[-1]:
#if the payload is the dummy payload, ignore it
if raw_data[:-1] != rfm.DUMMY_PAYLOAD:
return raw_data[:-1]
else:
return []
else:
return []