CAN Link¶

A CAN link is used to send/recv raw CAN frames to a CAN bus. Combine a CanLink and CanCodec to interact with named messages and signals on a CAN bus.

See CanCodec.

Example - virtual¶

from zeloscloud.links.can_link import CanLink

config = {
    "channel": "vcan0",
    "interface": "virtual",
}
with CanLink(name="can-link", config=config) as link:
    message = can.Message()
    link.send(message)

Example - socketcan¶

from zeloscloud.links.can_link import CanLink

config = {
    "channel": "can0",
    "interface": "socketcan",
}
with CanLink(name="can-link", config=config) as link:
    message = can.Message()
    link.send(message)

Example - pcan¶

from zeloscloud.links.can_link import CanLink

config = {
    "channel": "PCAN_USBBUS1",
    "interface": "pcan",
    "bitrate": 500000,
}
with CanLink(name="can-link", config=config) as link:
    message = can.Message()
    link.send(message)

PCAN Driver Install¶

To use a PCAN dongle on Windows a PEAK provided driver *.dll is required.

Ensure that all PCAN Basic drivers are selected.

Download the installer here: PCAN-Basic API Download

Example - gs_usb¶

from gsu_usb.gs_usb import GsUsb
from zeloscloud.links.can_link import CanLink

config = {
    "channel": GsUsb.scan()[0],
    "interface": "gs_usb",
    "bitrate": 500000,
    "index": 0,
}
with CanLink(name="can-link", config=config) as link:
    message = can.Message()
    link.send(message)

Example - virtual - loop¶

from zeloscloud.links.can_link import CanLink

config = {
    "channel": "vcan0",
    "interface": "virtual",
}
with Task(name="task") as task, \
        CanLink(name="can-link", config=config, loop=task.loop) as link:
    message = can.Message()
    link.send(message)

API Reference¶

See zeloscloud.links.can_link.CanLink in the API Reference.