71 lines
2.2 KiB
C
71 lines
2.2 KiB
C
/*****************************************************************************
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* Copyright (C) 2008
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* ProbeStar Telematics, LLC
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* All Rights Reserved. Proprietary and Confidential.
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*============================================================================
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* PIC SPI Interface
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*----------------------------------------------------------------------------
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*****************************************************************************/
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/* prevent multiple inclusions */
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#ifndef _SPI_H_
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#define _SPI_H_
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/*****************************************************************************
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* includes
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*****************************************************************************/
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#include "system.h"
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#include "queue.h"
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#include "types.h"
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/*****************************************************************************
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* defines
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*****************************************************************************/
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#ifdef _PIC18
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#define SSPCON SSPCON1
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#define STAT_RW RW
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#define STAT_DA DA
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#endif
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/*****************************************************************************
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* macros
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*****************************************************************************/
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#define SpiReadByte() SpiXferByte(0)
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#define SpiWriteByte(B) SpiXferByte(B)
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/*****************************************************************************
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* structs & typedefs
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*****************************************************************************/
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/*****************************************************************************
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* global constants
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*****************************************************************************/
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/*****************************************************************************
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* global variables
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*****************************************************************************/
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/*****************************************************************************
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* C function prototypes
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*****************************************************************************/
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/* export C functions to C++ */
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern void SpiInit( void );
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extern void SpiWaitTime( BYTE byUsec );
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extern BYTE SpiXferByte( BYTE byOut );
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extern void SpiReadData( BYTE *pbyData, BYTE nBytes );
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extern void SpiWriteData( const BYTE *pbyData, BYTE nBytes );
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#ifdef __cpluscplus
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}
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#endif
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#endif
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