dram.h

samsung 2410 demo源代码

//************************************************ 
// NAME    : DRAM.h
// DESC	   : library functions
// History : 2005. 9 .23  ver 0.0 
//************************************************

#ifndef __DRAM_h__
#define __DRAM_h__

#ifdef __cplusplus
extern "C" {
#endif

#include "2413addr.h"
#include "Option.h"


#define	SetREFRESH( REFCYC)	rREFRESH =	(unsigned)(REFCYC);
#define	SetPARAMETER( TRAS, TRC, TRCD, TRP, TCL)							\
{																		\
	rBANKCON2	=	(rBANKCON2&~(0xff00ff))|					\
						((TRAS)<<20)|((TRC)<<16)|(TCL<<4)|	\
						((TRCD)<<2)|((TRP)<<0);	\
}

#define	SetPREFRESH( REFCYC)
#define	SetPPARAMETER( TRAS, TRC, TRCD, TRP, TCL)

void PreChangeSDRAMParameter(void);
void ChangeSDRAMParameter(unsigned int);

#ifdef __cplusplus
}
#endif

#endif  //__DRAM_h__