can.h File Reference

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Functions
uint8_t	can_init (uint8_t prescaler, uint8_t propSeg, uint8_t phSeg1, uint8_t phSeg2, uint8_t jumpWidth, uint8_t interrupts)
uint8_t	can_config_buffer (uint8_t buffer, uint32_t id, uint8_t options, uint8_t maskOptions, uint32_t idMask)
uint8_t	can_set_buffer_autoreply (uint8_t buffer, uint8_t enable)
uint8_t	can_set_buffer_data (uint8_t buffer, uint8_t *data, uint8_t len)
uint8_t	can_send_buffer (uint8_t buffer)
uint8_t	can_buffer_newData (uint8_t buffer)
int8_t	can_buffer_getData (uint8_t buffer, uint8_t *data, uint32_t *id)

Macros
CAN-ID conversions
Defines macros conversion between numeric CAN-IDs and their representations in the CAN engine.
#define	ID_TO_STDFRAME(id)   ((id & 0x000007FFL) << 18)
#define	ID_TO_EXTFRAME(id)   (id & 0x1FFFFFFFL)
#define	STDFRAME_TO_ID(reg)   (((reg & 0x1FFFFFFFL) >> 18) & 0x000007FFL)
#define	EXTFRAME_TO_ID(reg)   (reg & 0x1FFFFFFFL)
Baudrate selections
Defines for standard baudrates usable with can_init. Values are: prescaler, TQ in propagation segment, TQ phase buffer segment 1, TQ phase buffer segment 2, TQ resynchronization jump width
#define	CAN_BAUD_50K   14, 8, 6, 5, 1
#define	CAN_BAUD_125K   7, 7, 4, 4, 1
#define	CAN_BAUD_1000K   1, 7, 3, 3, 1
Buffer options
Options that can be passed to can_config_buffer as "options". Can be or'ed together.
#define	CAN_BUF_OPT_ENABLED   (_BV(0))
#define	CAN_BUF_OPT_TRANSMIT   (_BV(1))
#define	CAN_BUF_OPT_EXTENDED   (_BV(2))
#define	CAN_BUF_OPT_RX_INTERRUPT   (_BV(4))
#define	CAN_BUF_OPT_TX_INTERRUPT   (_BV(5))
Buffer mask options
Options that can be passed to can_config_buffer as "maskOptions". Can be or'ed together.
#define	CAN_BUF_MASK_USE   (_BV(0))
#define	CAN_BUF_MASK_EXTENDED   (_BV(1))
#define	CAN_BUF_MASK_DIRECTION   (_BV(2))