can_driver.h

基于freescale MC9S12XF512 MCU

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/**
Copyright (c) 2007 Freescale Semiconductor
Freescale Confidential Proprietary
\file       CAN_driver.h
\brief      Definitions and function prototypes for CAN handling
\author     Freescale Semiconductor
\author     Guadalajara Applications Laboratory RTAC Americas
\author     Jaime Orozco
\version    1.0
\date       March/09/2007
*/
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/*******************************************************************************/

/** Variable types */
#include "typedefs.h"

#ifndef _CAN_H
#define _CAN_H

/* CAN ID definition: Standard Id 0x6C7 formatted to be loaded in IDRx */
#define ST_ID_100 0xD8E00000    

/* Acceptance Code Definitions */ 
#define ACC_CODE_ID100 0xD8E0
#define ACC_CODE_ID100_HIGH ((ACC_CODE_ID100&0xFF00)>>8)
#define ACC_CODE_ID100_LOW (ACC_CODE_ID100&0x00FF)

/* Mask Code Definitions */
#define MASK_CODE_ST_ID 0x0007
#define MASK_CODE_ST_ID_HIGH ((MASK_CODE_ST_ID&0xFF00)>>8)
#define MASK_CODE_ST_ID_LOW (MASK_CODE_ST_ID&0xFF)

/* Error Flags Definition */
#define NO_ERR 0x00
#define ERR_BUFFER_FULL 0x80 


/** Function Prototypes */

/** MSCAN configuration, baud rate = 500kbps, 16 bit acceptance filters */
void vfnCAN_Init(void);

/** CAN frame transmission */
UINT8 u8CAN_SendFrame(UINT32 u32ID, UINT8 u8Prio, UINT8 u8Length, UINT8 *u8TxData);

/** Read CAN reception buffer */
void vfnCAN_ReceivedFrame(void);


#endif /* _CAN_H */

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