def testReceivingLongMessage(self):
data = [1, 2, 3, 4, 5, 6, 7, 8]
pgn = j1939.PGN(
reserved_flag=True,
pdu_specific=j1939.constants.DESTINATION_ADDRESS_GLOBAL)
arbitration_id = j1939.ArbitrationID(pgn=pgn, source_address=0x01)
m_out = j1939.PDU(arbitration_id=arbitration_id, data=data)
otherbus = j1939.Bus(channel=can_interface)
# The otherbus might miss messages if we send them before its receive
# thread is running, so we wait here
sleep(0.50)
node = j1939.Node(otherbus, j1939.NodeName(0), [0x42, 0x01])
try:
attempts = 0
while attempts < 3:
m_in = otherbus.recv(timeout=2)
if m_in is not None:
break
# send a long message
self.bus.send(m_out)
attempts += 1
self.assertIsNotNone(m_in,
'Should receive sent messages on J1939 Bus')
self.assertIsInstance(m_in, j1939.PDU)
self.assertListEqual(m_in.data, m_out.data)
finally:
otherbus.shutdown()
def testReceivingLongMessage(self):
node = j1939.Node(self.bus, j1939.NodeName(0), [0x42, 0x01])
data = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]
pgn = j1939.PGN(
reserved_flag=True,
pdu_specific=j1939.constants.DESTINATION_ADDRESS_GLOBAL)
arbitration_id = j1939.ArbitrationID(pgn=pgn, source_address=0x01)
m_out = j1939.PDU(arbitration_id=arbitration_id, data=data)
otherbus = j1939.Bus(channel=can_interface)
attempts = 0
while attempts < 5:
m_in = otherbus.recv(timeout=0.5)
if m_in is not None: break
# send a long message
self.bus.send(m_out)
attempts += 1
self.assertIsNotNone(
m_in,
'Should receive messages on can bus when sending long message')
self.assertIsInstance(m_in, j1939.PDU)
self.assertListEqual(m_in.data, m_out.data)
otherbus.shutdown()
def __init__(self):
self.cnt = 0
## close can0
os.system('sudo ifconfig can0 down')
## set bitrate of can0
os.system('sudo ip link set can0 type can bitrate 500000')
## open can0
os.system('sudo ifconfig can0 up')
# os.system('sudo /sbin/ip link set can0 up type can bitrate 250000')
## show details can0 for debug.
# os.system('sudo ip -details link show can0')
if 0:
## set up CAN Bus of J1939
self.bus = j1939.Bus(channel='can0', bustype='socketcan_native')
# set up Notifier
self.notifier = can.Notifier(self.bus, [self.msg_handler])
else:
# set up can interface.
self.can0 = can.interface.Bus(channel = 'can0', bustype = 'socketcan_ctypes')# socketcan_native socketcan_ctypes
## set up Notifier
self.notifier = can.Notifier(self.can0, [self.msg_handler])
self.can_parser = CANParser()
self.lines = 0
def send_j1939():
bus = j1939.Bus(channel='vcan0')
node1 = j1939.Node(bus, j1939.NodeName(0), [0x01])
node2 = j1939.Node(bus, j1939.NodeName(0), [0x42])
bus.j1939_notifier.listeners.append(node1)
bus.j1939_notifier.listeners.append(node2)
pgn = j1939.PGN(reserved_flag=True,
pdu_specific=j1939.constants.DESTINATION_ADDRESS_GLOBAL)
arbitration_id = j1939.ArbitrationID(pgn=pgn, source_address=0x01)
msg = j1939.PDU(arbitration_id=arbitration_id, data=[0x10, 0x20, 0x30])
sleep(1)
node1.start_address_claim()
sleep(1)
try:
bus.send(msg)
print("Message sent on {}".format(bus.channel_info))
except can.CanError:
print("Message NOT sent")
sleep(1)
bus.flush_tx_buffer()
bus.shutdown()
def __init__(self):
self.accel_pkt_cnt = 0
self.gyro_pkt_cnt = 0
self.slope_pkt_cnt = 0
# set up Bus
self.bus = j1939.Bus(channel='can0', bustype='socketcan_native')
# set up Notifier
self.notifier = can.Notifier(self.bus, [self.general_message])
def setUp(self):
super(NetworkJ1939Test, self).setUp()
self.bus = j1939.Bus(channel=can_interface)
while self.bus.recv(timeout=0.1) is not None:
pass
def testCreateBus(self):
self.bus = j1939.Bus(channel=can_interface)
self.bus.shutdown()
def setUp(self):
super(NetworkJ1939Test, self).setUp()
self.bus = j1939.Bus(channel=can_interface)
filters = []
if args.pgn is not None:
print('Have to filter pgns: ', args.pgn)
for pgn in args.pgn:
if pgn.startswith('0x'):
pgn = int(pgn[2:], base=16)
filters.append({'pgn': int(pgn)})
if args.source is not None:
for src in args.source:
if src.startswith("0x"):
src = int(src[2:], base=16)
filters.append({"source": int(src)})
if args.filter is not None:
filters = json.load(args.filter)
#print("Loaded filters from file: ", filters)
bus = j1939.Bus(channel=args.channel,
bustype=args.interface,
j1939_filters=filters)
log_start_time = datetime.datetime.now()
print('can.j1939 logger started on {}\n'.format(log_start_time))
try:
for msg in bus:
print(msg)
except KeyboardInterrupt:
bus.shutdown()
print()
from can.interfaces.interface import *
from can.protocols import j1939
filters = []
if args.pgn is not None:
print('Have to filter pgns: ', args.pgn)
for pgn in args.pgn:
if pgn.startswith('0x'):
pgn = int(pgn[2:], base=16)
filters.append({'pgn': int(pgn)})
if args.source is not None:
for src in args.source:
if src.startswith("0x"):
src = int(src[2:], base=16)
filters.append({"source": int(src)})
if args.filter is not None:
filters = json.load(args.filter)
#print("Loaded filters from file: ", filters)
bus = j1939.Bus(channel='can0', j1939_filters=filters)
log_start_time = datetime.datetime.now()
print('can.j1939 logger started on {}\n'.format(log_start_time))
try:
for msg in bus:
print(msg)
except KeyboardInterrupt:
bus.shutdown()
print()