CAN Driver Source Code - CANpie FD

The CAN driver CANpie FD (Controller Area Network Programming Interface Environment) is an open interface for the development of CAN-based applications.

The CAN driver forms the basis for higher layer protocols (CANopen / J1939) and may be used for manufacturer-specific CAN communication between embedded systems. CANpie FD is avaliable for a wide range of microcontrollers (more than 160 at the moment). A variety of configuration options facilitates adjustment to individual target systems.

The CAN physical layer (data link layer) comprises two protocols: the classical CAN standard and CAN FD. The protocols are described in the ISO 11898-1:2015 specification. The CANpie FD API defines 19 functions to allow manufacturer independend access to the CAN controller to entirely support ISO specifications. The API is based on the concept of dedicated message buffers (mailboxes) in combination with acceptance masks to minimize the application software's overhead for filtering and managing messages. Each message buffer can be expanded by FIFO function.

An outline of the CANpie FD project is available on GitHub.

• supports (virtual) mailboxes
• supports acceptance masks
• optional FIFO for each mailbox
• supports time-stamps
• consistent structure of CAN messages
• optional user-fields may be included in the CAN structure
• supports all CAN FD formats (CBFF/CEFF/FBFF/FEFF)

The CANopen Slave protocol stack will come as C99 source together with a manual in English (electronic and print version). Also included:

• a site-related company license without additional runtime costs
• 12 months technical support by email or phone