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can --- Controller Area Network

can

A Controller Area Network (CAN bus) is a vehicle bus standard designed to allow microcontrollers and devices to communicate with each other in applications without a host computer. It is a message-based protocol, designed originally for multiplex electrical wiring within automobiles, but is also used in many other contexts.

Below is a short example of how to use this module. The error handling is left out for readability.

struct can_frame_t can_rx_buf[8];
struct can_frame_t frame;

/* Initialize and start the CAN conroller. */
can_init(&can,
         &can_device[0],
         CAN_SPEED_500KBPS,
         can_rx_buf,
         sizeof(can_rx_buf)) == 0);
can_start(&can);

/* Read a frame from the bus. */
can_read(&can, &frame, sizeof(frame));

/* Stop the CAN controller. */
can_stop(&can);

Source code: src/drivers/can.h, src/drivers/can.c

Test code: tst/drivers/can/main.c

drivers/can.h