VLCB-Arduino

CanTransport Interface

CanTransport serves as an interface for implementations of CAN based transports. It handles CANID enumeration and conflict detection that would be the same for all CAN based transports.

The service CanService uses CanTransport derived classes to get and send CANFrame objects. If an incoming CANFrame contains a VLCB message then CanService will create a VlcbMessage object and make it available to the other services. Sending a VlcbMessage will result in a CANFrame that is sent via the CanTransport object.

Implementations of CanTransport must implement the following methods:

available()

returns true if a CANFrame is available for retrieval.

getNextCanFrame()

get the next CAN frame that is available. Note that available() must be called first to ensure that a new CANFrame is available.

sendCanFrame()

send a CAN frame to the CAN bus.

Implementations

This library provides the following concrete transport classes:

SerialGC

Use the GridConnect protocol for sending CAN frames over a serial connection.

The following concrete transports exist externally.

VCAN2515

Implementation for using the MCP2515 CAN transceiver.

VCAN2040

Implementation for Raspberry Pi Pico using a software CAN transceiver.

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