init.c

来自「针对ADSP-BF533的例程」· C语言 代码 · 共 47 行

#include "ccblkfn.h"
#include "sysreg.h"

#include <sys\exception.h>
#include <cdefBF533.h>

#include "Cpld.h"
#include "Sys.h"

extern void Init_EBIU(void);
extern void Init_PLL(void);
extern void Init_SDRAM(void);

void Init_EBIU(void)
{
	*pEBIU_AMBCTL0	= 0x7bb07bb0;
	*pEBIU_AMBCTL1	= 0xffff7bb0;
	*pEBIU_AMGCTL	= 0x000f;
}

void Init_PLL(void)
{	*pPLL_CTL = 0x1400;
	*pPLL_DIV = 0x0004;
				
}

void Init_SDRAM(void)
{
	//SDRAM Refresh Rate Control Register
	*pEBIU_SDRRC = 0x00000817;	

	//SDRAM Memory Bank Control Register
	*pEBIU_SDBCTL = 0x00000013;

	//SDRAM Memory Global Control Register	
	*pEBIU_SDGCTL = 0x0091998d;	
}