ETAS#

This interface adds support for CAN interfaces by ETAS. The ETAS BOA (Basic Open API) is used.

Installation#

Install the “ETAS ECU and Bus Interfaces – Distribution Package”.

Warning

Only Windows is supported by this interface.

The Linux kernel v5.13 (and greater) natively supports ETAS ES581.4, ES582.1 and ES584.1 USB modules. To use these under Linux, please refer to the SocketCAN interface documentation.

Configuration#

The simplest configuration file would be:

[default]
interface = etas
channel = ETAS://ETH/ES910:abcd/CAN:1

Channels are the URIs used by the underlying API.

To find available URIs, use detect_available_configs():

configs = can.interface.detect_available_configs(interfaces="etas")
for c in configs:
    print(c)

Bus#

class can.interfaces.etas.EtasBus(channel, can_filters=None, receive_own_messages=False, bitrate=1000000, fd=True, data_bitrate=2000000, **kwargs)[source]#

Construct and open a CAN bus instance of the specified type.

Subclasses should call though this method with all given parameters as it handles generic tasks like applying filters.

Parameters

channel (str) – The can interface identifier. Expected type is backend dependent.
can_filters (Optional[Sequence[Union[can.typechecking.CanFilter, can.typechecking.CanFilterExtended]]]) – See set_filters() for details.
kwargs (dict) – Any backend dependent configurations are passed in this dictionary
receive_own_messages (bool) –
bitrate (int) –
fd (bool) –
data_bitrate (int) –

Raises

ValueError – If parameters are out of range
CanInterfaceNotImplementedError – If the driver cannot be accessed
CanInitializationError – If the bus cannot be initialized

flush_tx_buffer()[source]#

Discard every message that may be queued in the output buffer(s).

Return type: None

send(msg, timeout=None)[source]#

Transmit a message to the CAN bus.

Override this method to enable the transmit path.

Parameters

msg (Message) – A message object.
timeout (Optional[float]) – If > 0, wait up to this many seconds for message to be ACK’ed or for transmit queue to be ready depending on driver implementation. If timeout is exceeded, an exception will be raised. Might not be supported by all interfaces. None blocks indefinitely.

Raises

CanOperationError – If an error occurred while sending

Return type

None

shutdown()[source]#

Called to carry out any interface specific cleanup required in shutting down a bus.

Return type: None

property state: can.bus.BusState#: Return the current state of the hardware