def logCan():
results = bus_Cofing()
can_filters = []
if len(results.filter) > 0:
print('Adding filter are:')
for filt in results.filter:
if ':' in filt:
_ = filt.split(":")
can_id = int(_[0], base=16)
can_mask = int(_[1], base=16)
print('Can ID: ', hex(can_id), 'mask: ', hex(can_mask))
elif "~" in filt:
can_id, can_mask = filt.split("~")
can_id = int(can_id, base=16) | 0x20000000 # CAN_INV_FILTER
can_mask = int(can_mask, base=16) & socket.CAN_ERR_FLAG
print('Can ID: ', can_id, 'mask: ', can_mask)
can_filters.append({"can_id": can_id, "can_mask": can_mask})
config = {"can_filters": can_filters, "single_handle": True}
if results.interface:
config["interface"] = results.interface
if results.bitrate:
config["bitrate"] = results.bitrate
bus = Bus(results.channel, **config)
print('\nConnected to {}: {}'.format(bus.__class__.__name__,
bus.channel_info))
print('Can Logger (Started on {})\n'.format(datetime.now()))
logger = Logger(results.log_file)
while keep_going:
msg = bus.recv(1)
if msg is not None:
print(msg)
logger(msg)
bus.shutdown()
logger.stop()
def main():
parser = argparse.ArgumentParser(
"python -m can.logger",
description=
"Log CAN traffic, printing messages to stdout or to a given file.")
parser.add_argument(
"-f",
"--file_name",
dest="log_file",
help=
"""Path and base log filename, for supported types see can.Logger.""",
default=None)
parser.add_argument(
"-v",
action="count",
dest="verbosity",
help='''How much information do you want to see at the command line?
You can add several of these e.g., -vv is DEBUG''',
default=2)
parser.add_argument(
'-c',
'--channel',
help='''Most backend interfaces require some sort of channel.
For example with the serial interface the channel might be a rfcomm device: "/dev/rfcomm0"
With the socketcan interfaces valid channel examples include: "can0", "vcan0"'''
)
parser.add_argument(
'-i',
'--interface',
dest="interface",
help='''Specify the backend CAN interface to use. If left blank,
fall back to reading from configuration files.''',
choices=can.VALID_INTERFACES)
parser.add_argument(
'--filter',
help=
'''Comma separated filters can be specified for the given CAN interface:
<can_id>:<can_mask> (matches when <received_can_id> & mask == can_id & mask)
<can_id>~<can_mask> (matches when <received_can_id> & mask != can_id & mask)
''',
nargs=argparse.REMAINDER,
default='')
parser.add_argument('-b',
'--bitrate',
type=int,
help='''Bitrate to use for the CAN bus.''')
state_group = parser.add_mutually_exclusive_group(required=False)
state_group.add_argument(
'--active',
help="Start the bus as active, this is applied by default.",
action='store_true')
state_group.add_argument('--passive',
help="Start the bus as passive.",
action='store_true')
# print help message when no arguments wre given
if len(sys.argv) < 2:
parser.print_help(sys.stderr)
import errno
raise SystemExit(errno.EINVAL)
results = parser.parse_args()
verbosity = results.verbosity
logging_level_name = [
'critical', 'error', 'warning', 'info', 'debug', 'subdebug'
][min(5, verbosity)]
can.set_logging_level(logging_level_name)
can_filters = []
if len(results.filter) > 0:
print('Adding filter/s', results.filter)
for filt in results.filter:
if ':' in filt:
_ = filt.split(":")
can_id, can_mask = int(_[0], base=16), int(_[1], base=16)
elif "~" in filt:
can_id, can_mask = filt.split("~")
can_id = int(can_id, base=16) | 0x20000000 # CAN_INV_FILTER
can_mask = int(can_mask, base=16) & socket.CAN_ERR_FLAG
can_filters.append({"can_id": can_id, "can_mask": can_mask})
config = {"can_filters": can_filters, "single_handle": True}
if results.interface:
config["interface"] = results.interface
if results.bitrate:
config["bitrate"] = results.bitrate
bus = Bus(results.channel, **config)
if results.active:
bus.state = BusState.ACTIVE
elif results.passive:
bus.state = BusState.PASSIVE
print('Connected to {}: {}'.format(bus.__class__.__name__,
bus.channel_info))
print('Can Logger (Started on {})\n'.format(datetime.now()))
logger = Logger(results.log_file)
try:
while True:
msg = bus.recv(1)
if msg is not None:
logger(msg)
except KeyboardInterrupt:
pass
finally:
bus.shutdown()
logger.stop()
def main():
parser = argparse.ArgumentParser(
"python -m can.logger",
description="Log CAN traffic, printing messages to stdout or to a given file.")
parser.add_argument("-f", "--file_name", dest="log_file",
help="""Path and base log filename, for supported types see can.Logger.""",
default=None)
parser.add_argument("-v", action="count", dest="verbosity",
help='''How much information do you want to see at the command line?
You can add several of these e.g., -vv is DEBUG''', default=2)
parser.add_argument('-c', '--channel', help='''Most backend interfaces require some sort of channel.
For example with the serial interface the channel might be a rfcomm device: "/dev/rfcomm0"
With the socketcan interfaces valid channel examples include: "can0", "vcan0"''')
parser.add_argument('-i', '--interface', dest="interface",
help='''Specify the backend CAN interface to use. If left blank,
fall back to reading from configuration files.''',
choices=can.VALID_INTERFACES)
parser.add_argument('--filter', help='''Comma separated filters can be specified for the given CAN interface:
<can_id>:<can_mask> (matches when <received_can_id> & mask == can_id & mask)
<can_id>~<can_mask> (matches when <received_can_id> & mask != can_id & mask)
''', nargs=argparse.REMAINDER, default='')
parser.add_argument('-b', '--bitrate', type=int,
help='''Bitrate to use for the CAN bus.''')
group = parser.add_mutually_exclusive_group(required=False)
group.add_argument('--active', help="Start the bus as active, this is applied the default.",
action='store_true')
group.add_argument('--passive', help="Start the bus as passive.",
action='store_true')
# print help message when no arguments wre given
if len(sys.argv) < 2:
parser.print_help(sys.stderr)
import errno
raise SystemExit(errno.EINVAL)
results = parser.parse_args()
verbosity = results.verbosity
logging_level_name = ['critical', 'error', 'warning', 'info', 'debug', 'subdebug'][min(5, verbosity)]
can.set_logging_level(logging_level_name)
can_filters = []
if len(results.filter) > 0:
print('Adding filter/s', results.filter)
for filt in results.filter:
if ':' in filt:
_ = filt.split(":")
can_id, can_mask = int(_[0], base=16), int(_[1], base=16)
elif "~" in filt:
can_id, can_mask = filt.split("~")
can_id = int(can_id, base=16) | 0x20000000 # CAN_INV_FILTER
can_mask = int(can_mask, base=16) & socket.CAN_ERR_FLAG
can_filters.append({"can_id": can_id, "can_mask": can_mask})
config = {"can_filters": can_filters, "single_handle": True}
if results.interface:
config["interface"] = results.interface
if results.bitrate:
config["bitrate"] = results.bitrate
bus = Bus(results.channel, **config)
if results.active:
bus.state = BusState.ACTIVE
if results.passive:
bus.state = BusState.PASSIVE
print('Connected to {}: {}'.format(bus.__class__.__name__, bus.channel_info))
print('Can Logger (Started on {})\n'.format(datetime.now()))
logger = Logger(results.log_file)
try:
while True:
msg = bus.recv(1)
if msg is not None:
logger(msg)
except KeyboardInterrupt:
pass
finally:
bus.shutdown()
logger.stop()