linsci.h

BCM 控制demo源代码

#ifndef LINSCI_H
#define LINSCI_H

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

/****************************************************************************
 * All extern declarations of common-purpose RAM variables shall be here.
 ***************************************************************************/
#if defined(USEZEROPAGE)
#pragma DATA_SEG __SHORT_SEG ZeroSeg
#endif /* defined(USEZEROPAGE) */

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

#if defined(USEZEROPAGE)
#pragma DATA_SEG DEFAULT
#endif /* defined(USEZEROPAGE) */

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

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

void near LIN_SCISetBaudRate( LIN_WORD baudRate );

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

#if !defined(LINAPI_1_0)

#endif /* !defined(LINAPI_1_0) */

/****************************************************************************/
/***                     Macros                                           ***/
/****************************************************************************/
#define    LIN_SCDRPut(data)     ( LIN_SCIDRL = (data) )	


/**************************************************************************
* Function :   LIN_SCISendBreak
*
* Description: Send Break
*														                            
*
* Returns:     none
*
* Notes:       
*
**************************************************************************/
#define LIN_SCISendBreakSignal() 	\
		LIN_TmpSCIStatus = LIN_SCISR1;	/* Read SCI status register to clear it */\
		LIN_SCICR2 |= LIN_SCICR2_SBK; 	/* Enable SCI Tx completed interrupt and send 13 bit break*/\
		LIN_SCICR2 &= ~LIN_SCICR2_SBK	/* send 13 bit break once */


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

#define LIN_SCISendWakeup()	\
		LIN_TmpSCIStatus = LIN_SCISR1;	/* Read SCI status register to clear it */\
		LIN_SCDRPut(WAKEUP_BYTE);	/* Send wakeup frame */\
		LIN_SCICR2 |= LIN_SCICR2_TCIE	/* Enable SCI Tx completed interrupt */\

#endif /* !define (LINSCI_H) */