IXXAT Virtual CAN Interface¶
Interface to IXXAT Virtual CAN Interface V3 SDK. Works on Windows.
The Linux ECI SDK is currently unsupported, however on Linux some devices are supported with SocketCAN.
send_periodic() method is supported
natively through the on-board cyclic transmit list.
Modifying cyclic messages is not possible. You will need to stop it, and then
start a new periodic message.
The simplest configuration file would be:
[default] interface = ixxat channel = 0
Python-can will search for the first IXXAT device available and open the first channel.
channel parameters are interpreted by frontend
module, while the following parameters are optional and are interpreted by IXXAT implementation.
bitrate(default 500000) Channel bitrate
UniqueHardwareId(default first device) Unique hardware ID of the IXXAT device
rxFifoSize(default 16) Number of RX mailboxes
txFifoSize(default 16) Number of TX mailboxes
extended(default False) Allow usage of extended IDs
The CAN filters act as an allow list in IXXAT implementation, that is if you supply a non-empty filter list you must explicitly state EVERY frame you want to receive (including RTR field). The can_id/mask must be specified according to IXXAT behaviour, that is bit 0 of can_id/mask parameters represents the RTR field in CAN frame. See IXXAT VCI documentation, section “Message filters” for more info.
List available devices¶
In case you have connected multiple IXXAT devices, you have to select them by using their unique hardware id.
To get a list of all connected IXXAT you can use the function
get_ixxat_hwids() as demonstrated below:
>>> from can.interfaces.ixxat import get_ixxat_hwids >>> for hwid in get_ixxat_hwids(): print("Found IXXAT with hardware id '%s'." % hwid) Found IXXAT with hardware id 'HW441489'. Found IXXAT with hardware id 'HW107422'.
BusABC object is a fairly straightforward interface
to the IXXAT VCI library. It can open a specific device ID or use the
first one found.
The frame exchange do not involve threads in the background but is explicitly instantiated by the caller.
recv()is a blocking call with optional timeout.
send()is not blocking but may raise a VCIError if the TX FIFO is full
RX and TX FIFO sizes are configurable with
options, defaulting at 16 for both.