linsci.h

飞思卡尔车身控制技术研讨会资料 里面有LIN的主从节点源程序

#ifndef LINSCI_H
#define LINSCI_H

/******************************************************************************
*                                                       
*       Copyright (C) 2005 Freescale Semiconductor, Inc.
*       All Rights Reserved								              
*														                            
* Filename:     linsci.h                
*														                            
* Revision:      										                    
*														                            
* Functions:    SCI routins header file
*														                            
* Description:  
*
* Notes:        
*
******************************************************************************/

/****************************************************************************
 * All extern declarations of common-purpose RAM variables shall be here.
 ***************************************************************************/
/****************************************************************************
 * Some of the variables (more often used) can be declared using LIN_ZPAGE
 * modifier (applicable only for HC08).
 * It require to perform zero page RAM placement optimisation.
 ***************************************************************************/
#if defined(S08) && defined(CW08)
#pragma DATA_SEG SHORT ZeroSeg
#endif /* defined(S08) && defined(CW08) */

extern LIN_ZPAGE LIN_BYTE LIN_TmpSCIStatus;     /* byte to clear SCI status, and to receive byte   */

#if defined(S08) && defined(CW08)
#pragma DATA_SEG DEFAULT
#endif /* defined(S08) && defined(CW08) */

/****************************************************************************/
/***                     Functions                                        ***/
/****************************************************************************/

#if !defined(LINAPI_1_0)
void LIN_SCIInit( void );
#endif /* !defined(LINAPI_1_0) */

void LIN_SCISetBaudRate( LIN_WORD baudRate );

/****************************************************************************/
/***                     Interrupt Driven routins                         ***/
/****************************************************************************/

#if !defined(LINAPI_1_0)

#endif /* !defined(LINAPI_1_0) */

/****************************************************************************/
/***                     Macros                                           ***/
/****************************************************************************/
#if defined(S08DZ60)
#define    LIN_SCDRPut(data)     ( LIN_SCDR = (data) )
#endif /* defined(S08DZ60) */

/**************************************************************************
 * Function :   LIN_SCISendZero
 *
 * Description: Send Zero byte
 *
 * Returns:     none
 *
 * Notes:       1. 13 zero bits sended
 *
 **************************************************************************/
#if defined(S08DZ60)

#define LIN_SCISendBreakSignal()                                                                       \
            LIN_TmpSCIStatus = LIN_SCSR1; /* Read SCI status register to clear it */ \
            LIN_SCCR2 |= (LIN_SCCR2_SBK); /* Send 13 bit break */\
            LIN_SCCR2 &= ~LIN_SCCR2_SBK

#endif /* defined(S08DZ60) */

/**************************************************************************
 * Function :   LIN_SCISendWakeup
 *
 * Description: Send Wakeup message
 *
 * Returns:     none
 *
 * Notes:       none
 *
 **************************************************************************/
#define WAKEUP_BYTE             0x80

#if defined(S08DZ60)

#define LIN_SCISendWakeup()                                                                     \
        LIN_TmpSCIStatus = LIN_SCSR1;          /* Read SCI status register to clear it */       \
        LIN_SCDRPut(WAKEUP_BYTE)               /* Send wakeup frame */                         

#endif /* defined(S08DZ60) */

#endif /* !define (LINSCI_H) */