sdram.h

dsp6416开发的底层驱动

/*H***************************************************************************
*
* $Archive::                                                                $
* $Revision::                                                               $
* $Date::                                                                   $
* $Author::                                                                 $
*
* DESCRIPTION:
*
* USAGE/LIMITATIONS:
*
* NOTES:
*   
* All rights reserved
*
*H***************************************************************************/

#ifndef sdram_h
#define sdram_h

/*---- compilation control switches ----------------------------------------*/

/*****************************************************************************
* INCLUDE FILES (minimize nesting of header files)
*****************************************************************************/

/*---- system and platform files -------------------------------------------*/

/*---- program files -------------------------------------------------------*/

/*****************************************************************************
* FILE CONTENT
*****************************************************************************/

/*****************************************************************************
* FUNCTIONAL AREA DETAIL
*****************************************************************************/

/*---- context -------------------------------------------------------------*/

/*---- data descriptions ---------------------------------------------------*/
typedef  unsigned        DRAM_ADDR;
typedef  unsigned char   DRAM_BYTE;
typedef  unsigned short  DRAM_WORD;
typedef  unsigned        DRAM_DWORD;


/* Define SDRAM base address and number of valid address bits               */
#define SDRAM_TEST_ADDRESS 0x80000000L  // Base address for TACE0
#define SDRAM_ADDRESS_BITS 22         	// 22 address bits to test
                                      	// 2**21 64 bit words  or
                                     	// 2**22 32 bit words
                                     	                                     	
/*---- global function prototypes ------------------------------------------*/
#ifdef GLOBAL
    #undef GLOBAL
#endif
#ifdef sdram_c
   #define GLOBAL 
#else
   #define GLOBAL extern
#endif

GLOBAL int DRAM_SlidingData32( DRAM_ADDR DramAddr, DRAM_DWORD Pattern, int Count );
GLOBAL int DRAM_ByteStrobes( DRAM_ADDR DramAddr, DRAM_DWORD Pattern );
GLOBAL int DRAM_SlidingAddr32( DRAM_ADDR DramAddr, int Count );
GLOBAL int DRAM_AddressAsData( DRAM_ADDR DramAddr, int Count );

#endif /* sdram_h --------- END OF FILE ------------------------------------*/