#include <avr/pgmspace.h>
#include <stdint.h>
#include <stdbool.h>
#include "config.h"

Include dependency graph for can.h:

Classes
struct	can_error_register_t
	Inhalt der Fehler-Register. More...

struct	can_filter_t
	Datenstruktur zur Aufnahme von CAN-Filtern. More...

struct	can_t
	Datenstruktur zum Aufnehmen von CAN Nachrichten. More...

Macros
#define	CAN_ALL_FILTER 0xff
	Symbol um auf alle Filter zuzugreifen. More...

#define	SUPPORT_EXTENDED_CANID 1
	Unterstuetzung fuer Extended-IDs aktivieren. More...

#define	SUPPORT_TIMESTAMPS 0
	Unterstützung für Zeitstempel aktivieren. More...

Bitdefinitionen
#define	ONLY_NON_RTR 2

#define	ONLY_RTR 3

Bits des Filters fuer den MCP2515 umformatieren
prog_uint8_t can_filter[] = { MCP2515_FILTER_EXTENDED(0), // Filter 0 MCP2515_FILTER_EXTENDED(0), // Filter 1 MCP2515_FILTER_EXTENDED(0), // Filter 2 MCP2515_FILTER_EXTENDED(0), // Filter 3 MCP2515_FILTER_EXTENDED(0), // Filter 4 MCP2515_FILTER_EXTENDED(0), // Filter 5 MCP2515_FILTER_EXTENDED(0), // Maske 0 MCP2515_FILTER_EXTENDED(0), // Maske 1 }; See also can_static_filter() Warning Do not use this Makro for Variables, only for static values known at compile-time.
#define	MCP2515_FILTER_EXTENDED(id)

#define	MCP2515_FILTER(id)

Enumerations
enum	can_bitrate_t { BITRATE_10_KBPS = 0, BITRATE_20_KBPS = 1, BITRATE_50_KBPS = 2, BITRATE_100_KBPS = 3, BITRATE_125_KBPS = 4, BITRATE_250_KBPS = 5, BITRATE_500_KBPS = 6, BITRATE_1_MBPS = 7, BITRATE_10_KBPS = 0, BITRATE_20_KBPS = 1, BITRATE_50_KBPS = 2, BITRATE_100_KBPS = 3, BITRATE_125_KBPS = 4, BITRATE_250_KBPS = 5, BITRATE_500_KBPS = 6, BITRATE_1_MBPS = 7 }
	Bitraten fuer den CAN-Bus. More...

enum	can_mode_t { LISTEN_ONLY_MODE, LOOPBACK_MODE, NORMAL_MODE, SLEEP_MODE, LISTEN_ONLY_MODE, LOOPBACK_MODE, NORMAL_MODE, SLEEP_MODE }
	Modus des CAN Interfaces. More...

Functions
bool	can_check_bus_off (void)

bool	can_check_free_buffer (void)
	Ueberprueft ob ein Puffer zum Versenden einer Nachricht frei ist. More...

bool	can_check_message (void)
	Ueberpruefen ob neue CAN Nachrichten vorhanden sind. More...

bool	can_disable_filter (uint8_t number)
	Filter deaktivieren. More...

uint8_t	can_get_filter (uint8_t number, can_filter_t *filter)

uint8_t	can_get_message (can_t *msg)
	Liest eine Nachricht aus den Empfangspuffern des CAN Controllers. More...

bool	can_init (can_bitrate_t bitrate)
	Initialisierung des CAN Interfaces. More...

can_error_register_t	can_read_error_register (void)
	Reads the Contents of the CAN Error Counter. More...

void	can_reset_bus_off (void)

uint8_t	can_send_message (const can_t *msg)
	Verschickt eine Nachricht über den CAN Bus. More...

bool	can_set_filter (uint8_t number, const can_filter_t *filter)
	Setzen eines Filters. More...

void	can_set_mode (can_mode_t mode)
	Setzt den Operations-Modus. More...

void	can_sleep (void)
	Put CAN interface to sleep and wake up. More...

void	can_static_filter (const uint8_t *filter_array)
	Setzt die Werte für alle Filter. More...

void	can_wakeup (void)

Macro Definition Documentation

◆ MCP2515_FILTER

#define MCP2515_FILTER ( id )

Value:

(uint8_t)((uint32_t) id >> 3), \
                        (uint8_t)((uint32_t) id << 5), \
                        0, \
                        0

Definition at line 165 of file can.h.

◆ MCP2515_FILTER_EXTENDED

#define MCP2515_FILTER_EXTENDED ( id )

Value:

(uint8_t)  ((uint32_t) (id) >> 21), \
                                (uint8_t)((((uint32_t) (id) >> 13) & 0xe0) | (1<<3) | \
                                        (((uint32_t) (id) >> 16) & 0x3)), \
                                (uint8_t)  ((uint32_t) (id) >> 8), \
                                (uint8_t)  ((uint32_t) (id))

Definition at line 157 of file can.h.

◆ ONLY_NON_RTR

#define ONLY_NON_RTR 2

Definition at line 76 of file can.h.

◆ ONLY_RTR

#define ONLY_RTR 3

Definition at line 77 of file can.h.

Function Documentation

◆ can_wakeup()

void can_wakeup ( void )

Classes

Macros

Enumerations