Initial commit of files

src/libPIC/spi.h

@@ -0,0 +1,70 @@
+/*****************************************************************************
+ * Copyright (C) 2008
+ * ProbeStar Telematics, LLC
+ * All Rights Reserved.  Proprietary and Confidential.
+ *============================================================================
+ * PIC SPI Interface
+ *----------------------------------------------------------------------------
+*****************************************************************************/
+
+/* prevent multiple inclusions */
+#ifndef _SPI_H_
+#define _SPI_H_
+
+/*****************************************************************************
+ * includes
+*****************************************************************************/
+
+#include "system.h"
+#include "queue.h"
+#include "types.h"
+
+/*****************************************************************************
+ * defines
+*****************************************************************************/
+
+#ifdef _PIC18
+#define SSPCON	SSPCON1
+#define STAT_RW	RW
+#define STAT_DA	DA
+#endif
+
+/*****************************************************************************
+ * macros
+*****************************************************************************/
+
+#define SpiReadByte()	SpiXferByte(0)
+#define	SpiWriteByte(B)	SpiXferByte(B)
+
+/*****************************************************************************
+ * structs & typedefs
+*****************************************************************************/
+
+/*****************************************************************************
+ * global constants
+*****************************************************************************/
+
+/*****************************************************************************
+ * global variables
+*****************************************************************************/
+
+/*****************************************************************************
+ * C function prototypes
+*****************************************************************************/
+/* export C functions to C++ */
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern void SpiInit( void );
+extern void SpiWaitTime( BYTE byUsec );
+
+extern BYTE SpiXferByte( BYTE byOut );
+
+extern void SpiReadData( BYTE *pbyData, BYTE nBytes );
+extern void SpiWriteData( const BYTE *pbyData, BYTE nBytes );
+
+#ifdef __cpluscplus
+}
+#endif
+#endif