Kvaser’s CANLIB¶
Kvaser’s CANLib SDK for Windows (also available on Linux).
Bus¶
-
class
can.interfaces.kvaser.canlib.
KvaserBus
(channel, can_filters=None, **config)¶ The CAN Bus implemented for the Kvaser interface.
Internals¶
The Kvaser Bus
object with a physical CAN Bus can be operated in two
modes; single_handle
mode with one shared bus handle used for both reading and
writing to the CAN bus, or with two separate bus handles.
Two separate handles are needed if receiving and sending messages are done in
different threads (see Kvaser documentation).
Warning
Any objects inheriting from Bus should not directly use the interface handle(/s).
Message filtering¶
The Kvaser driver and hardware only supports setting one filter per handle.
If one filter is requested, this is will be handled by the Kvaser driver.
If more than one filter is needed, these will be handled in Python code
in the recv
method. If a message does not match any of the filters,
recv()
will return None.