CANpie 定义了一个标准的 C 语言 API 用来访问 CAN (控制域总线) 。
The API provides functionality for ISO/OSI Layer 2 (Data Link Layer). The CANpie driver is the base for HLPs like CANopen, DeviceNet, J1939, etc. Through its low memory footprint, CANpie can be used for embedded applications (without any OS) as well as for Linux. Access to the Linux CAN driver is via a socket interface (AF_CAN).