def testSend(self):
bus = Bus(channel=can_interface, claimed_addresses=[0, 1])
print "send addr: {0}".format(bus.local_node.address)
arb = ArbitrationID(priority=5, destination_addresses = [0], source_address=bus.local_node.address)
msg = SecureMessage(data=[0, 245, 134], arbitration_id=arb)
bus.send(msg)
bus.recv()
def testSend(self):
bus = Bus(channel=can_interface, claimed_addresses=[0, 1])
print "send addr: {0}".format(bus.local_node.address)
arb = ArbitrationID(priority=5,
destination_addresses=[0],
source_address=bus.local_node.address)
msg = SecureMessage(data=[0, 245, 134], arbitration_id=arb)
bus.send(msg)
bus.recv()
"""
Script to run from receiving Beaglebone to receive secure CAN messages.
"""
import can
import time
from can.protocols.secure import Bus
interface = 'vcan0'
bus = Bus(channel=interface, claimed_addresses=[0, 2])
print bus.local_node.address
msg = bus.recv(timeout=2)
sum, count = 0, 0
latest_time = 0.0
while(msg is not None):
if not msg.accepted:
print "FAKE MESSAGE DETECTED"
start_time = time.time()
msg = bus.recv(timeout=2)
timer = time.time() - start_time
sum += timer
count += 1
latest_time = timer
sum -= timer
if count is not 0:
print "average receiving time per msg: ", (sum/count)
def testRecv(self):
bus = Bus(channel=can_interface)
print "recv addr: {0}".format(bus.local_node.address)
print bus.recv(timeout=2)
def testRecv(self):
bus = Bus(channel=can_interface)
print "recv addr: {0}".format(bus.local_node.address)
print bus.recv(timeout=2)
"""
Script to run from transmitting Beaglebone to send secure CAN messages.
"""
import can
import time
from can.protocols.secure.securemessage import SecureMessage
from can.protocols.secure.arbitrationid import ArbitrationID
from can.protocols.secure import Bus
interface = 'vcan0'
NO_OF_MSGS = 100
USEFUL_BITS = 40
bus = Bus(channel=interface, claimed_addresses=[0, 1])
arb = ArbitrationID(priority=5,
destination_addresses=[1],
source_address=bus.local_node.address)
sum = 0
for i in range(NO_OF_MSGS - 1, 0, -1):
start_time = time.time()
msg = SecureMessage(data=[i], arbitration_id=arb)
bus.send(msg)
timer = time.time() - start_time
sum += timer
time_per_msg = sum / NO_OF_MSGS
print "latency: ", time_per_msg
Script to run from transmitting Beaglebone to send secure CAN messages.
"""
import can
import time
from can.protocols.secure.securemessage import SecureMessage
from can.protocols.secure.arbitrationid import ArbitrationID
from can.protocols.secure import Bus
interface = 'vcan0'
NO_OF_MSGS = 100
USEFUL_BITS = 40
bus = Bus(channel=interface, claimed_addresses=[0, 1])
arb = ArbitrationID(priority=5, destination_addresses=[1], source_address=bus.local_node.address)
sum = 0
for i in range(NO_OF_MSGS - 1, 0, -1):
start_time = time.time()
msg = SecureMessage(data=[i], arbitration_id=arb)
bus.send(msg)
timer = time.time() - start_time
sum += timer
time_per_msg = sum / NO_OF_MSGS
print "latency: ", time_per_msg
print "throughput: ", USEFUL_BITS / time_per_msg
