Matthias
373a8c32b2
git-svn-id: file:///srv/dev-disk-by-uuid-17e88007-4d0c-45e0-8757-cacfcc458630/repositories/svn/Diplomarbeit@55 9fe90eed-be63-e94b-8204-d34ff4c2ff93
111 lines
3.7 KiB
C
111 lines
3.7 KiB
C
/* ---------------------------------------------------------------------------
|
|
* can.h (c) 2008 Micro-key bv
|
|
* ---------------------------------------------------------------------------
|
|
* Micro-key bv
|
|
* Industrieweg 28, 9804 TG Noordhorn
|
|
* Postbus 92, 9800 AB Zuidhorn
|
|
* The Netherlands
|
|
* Tel: +31 594 503020
|
|
* Fax: +31 594 505825
|
|
* Email: support@microkey.nl
|
|
* Web: www.microkey.nl
|
|
* ---------------------------------------------------------------------------
|
|
* Description:
|
|
* ---------------------------------------------------------------------------
|
|
* Version(s): 0.1, Feb 11, 2008, MMi
|
|
* Creation.
|
|
* ---------------------------------------------------------------------------
|
|
*/
|
|
#ifndef CAN_H_
|
|
#define CAN_H_
|
|
/* ---------------------------------------------------------------------------
|
|
* System include files.
|
|
* ---------------------------------------------------------------------------
|
|
*/
|
|
/* Hardware Includes */
|
|
#include "LPC23xx.h"
|
|
#include "types.h"
|
|
|
|
/* ---------------------------------------------------------------------------
|
|
* Application include files.
|
|
* ---------------------------------------------------------------------------
|
|
*/
|
|
|
|
/* ---------------------------------------------------------------------------
|
|
* Constant and macro definitions.
|
|
* ---------------------------------------------------------------------------
|
|
*/
|
|
|
|
// Maximum number of total FullCAN Filters for ALL CAN interfaces
|
|
#define MAX_FILTERS 20
|
|
|
|
// Define CAN SFR address bases
|
|
#define CAN_REG_BASE (0xE0000000)
|
|
#define ACCEPTANCE_FILTER_RAM_BASE (CAN_REG_BASE + 0x00038000)
|
|
#define ACCEPTANCE_FILTER_REGISTER_BASE (CAN_REG_BASE + 0x0003C000)
|
|
#define CENTRAL_CAN_REGISTER_BASE (CAN_REG_BASE + 0x00040000)
|
|
|
|
// Common CAN bit rates
|
|
#define CANBitrate50_12MHz 0x001C000E
|
|
#define CANBitrate125k_12MHz 0x001C0005
|
|
#define CANBitrate250k_12MHz 0x001C0002
|
|
|
|
// CAN Interrupt Service Routines
|
|
void CAN_IRS_Handler (void) __attribute__ ((naked, interrupt("IRQ")));
|
|
/* ---------------------------------------------------------------------------
|
|
* Type definitions.
|
|
* ---------------------------------------------------------------------------
|
|
*/
|
|
// Type definition to hold a FullCAN message
|
|
// Compatible to FullCAN Mode Stored Messages in LPC User Manual
|
|
typedef struct
|
|
{
|
|
UINT32 Dat1; // Bits 0..10: CAN Message ID
|
|
// Bits 13..15: CAN interface number (1..4)
|
|
// Bits 16..19: DLC - Data Length Counter
|
|
// Bits 24..25: Semaphore bits
|
|
UINT32 DatA; // CAN Message Data Bytes 0-3
|
|
UINT32 DatB; // CAN Message Data Bytes 4-7
|
|
} CAN_MSG;
|
|
/* ---------------------------------------------------------------------------
|
|
* Variable declarations.
|
|
* ---------------------------------------------------------------------------
|
|
*/
|
|
|
|
/* ---------------------------------------------------------------------------
|
|
* Function declarations.
|
|
* ---------------------------------------------------------------------------
|
|
*/
|
|
|
|
|
|
UINT16 CANInit (
|
|
UINT32 can_btr /* CAN Baud Rate setting */
|
|
);
|
|
|
|
|
|
UINT16 CANSetFilter
|
|
(
|
|
UINT32 CANID // 11-bit CAN message identifier
|
|
);
|
|
|
|
|
|
|
|
UINT16 CANPushMessage (
|
|
CAN_MSG *pTransmitBuf // Source pointer to a CAN message
|
|
);
|
|
|
|
|
|
UINT16 CANPullMessage (
|
|
CAN_MSG *pReceiveBuf // Destination pointer to a CAN message
|
|
);
|
|
|
|
|
|
void CAN_CANISR_Rx1 (void);
|
|
void CAN_CANISR_Rx2 (void);
|
|
void CAN_CANISR_Err (void);
|
|
void CAN_ERRORBUS (void);
|
|
|
|
|
|
|
|
#endif /*CAN_H_*/
|