8devices Korlan USB2CAN Podręcznik użytkownika - Strona 9

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8devices Korlan USB2CAN Podręcznik użytkownika

sudo apt-get install can-utils

Send byte of information (1122334455667788) to can device with id = "1f334455":

cansend can0 1f334455#1122334455667788

Receive everything on the can1 interface:

candump can1

3.3 Python programming examples for Linux

Python programming examples rely on the python-can module and socket can drivers. Before running

code examples, you shall bring the CAN interface to the UP state using the command:

sudo ip link set can0 up type can bitrate 125000 sample-point 0.875

Example receive_all.py - receives and prints all messages on the screen until Ctr-C is pressed.

import can

bus = can.Bus(channel='can0', interface='socketcan', bitrate=1000000)

for i in range(10):

msg = can.Message(arbitration_id=0xc0ffee, data=[i,2,3,4,5,6,7,8],

is_extended_id=True)

bus.send(msg)

Example send.py - sends 10 CAN messages to the bus.