init.c

来自「在BF533上实现FAT32文件系统文件系统的源码,有兴趣的可以看看.」· C语言 代码 · 共 45 行

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

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

//#include "Cpld.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	= 0x7bb07bb0;
	*pEBIU_AMGCTL	= 0x000f;
}

void Init_PLL(void)
{	
	//*pPLL_DIV = 0x002f;			
}

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;	
}