juancamilog / canbus_interface Goto Github PK

Hi,

I am getting this error when launching the package:
core service [/rosout] found
process[can/listener-1]: started with pid [20476]
Exception in thread Thread-4:
Traceback (most recent call last):
File "/usr/lib/python2.7/threading.py", line 810, in *bootstrap_inner
self.run()
File "/usr/lib/python2.7/threading.py", line 763, in run
self.__target(_self.__args, _self.__kwargs)
File "/usr/local/lib/python2.7/dist-packages/python_can-1.4-py2.7.egg/can/notifier.py", line 35, in rx_thread
callback(msg)
File "/usr/local/lib/python2.7/dist-packages/python_can-1.4-py2.7.egg/can/CAN.py", line 42, in __call
return self.on_message_received(msg)
File "/home/matt/catkin_ws/src/canbus_interface/src/canbus_listener.py", line 23, in on_message_received
self.canpub.publish(canframe)
AttributeError: 'canbus_ros_interface' object has no attribute 'canpub'

/home/matt/catkin_ws/src/canbus_interface/src/canbus_listener.py:13: SyntaxWarning: The publisher should be created with an explicit keyword argument 'queue_size'. Please see http://wiki.ros.org/rospy/Overview/Publishers%20and%20Subscribers for more information.
self.canpub = rospy.Publisher('data', CanFrame)

Matt

Hi,

Do you recommend a specific can dongle to use with this package?

Thanks,

Matt

Holle:
my code:
def SendBack(data):
msg = can.Message(arbitration_id=0x000601, data = data, extended_id=False)
bus.send(msg)
bus.flush_tx_buffer()
time.sleep(0.001)
try:
Ans = str(bus.recv(timeout=1.0))
except:
print("Error")
return(None)
if(len(Ans) > 10):
return("success")
else:
return(None)
My question is when it lost recv then i cant send any new message.
it can't send any data and any response.
I need to restart Raspberry Pi then CAN bus will be normal.
Please help me to fix this question.
Thank you

Hi, Thank you write this canbus_interface packag! I want to use your package in a RK3288 Hardware platform . But there is not CANbus on this platform. I think about using SPI to CAN chip like MCP2515. Do you think I can use it? Or do you have some suggestions?