main.c

对S3C4510B挂接的FLASH进行整片烧写

//******************************************************
//Chinese Academy of Sciences, Institute of Automation
//File Name:	main.c
//Description: 	Write flash,32bits model
//Author:	JuGuang,Li
//Date:		2003-3-20
//******************************************************	
#include "Def.h"
#include "s3c4510b_add.h"

#define AM_WORD_COUNT	    (64*1024)/2

#define AM_START_ADDR          0x0000000		//0x1100000	    
#define AM_ADDR_UNLOCK1        0x555
#define AM_ADDR_UNLOCK2        0x2aa
#define AM_DATA_UNLOCK1        0xaaaa
#define AM_DATA_UNLOCK2        0x5555
#define AM_SETUP_WRITE         0xa0a0
#define AM_SETUP_ERASE         0x8080
#define AM_CHIP_ERASE          0x1010
#define AM_SECTOR_ERASE	    0x3030

#define AM_RESET		    0xf0f0

void Delay(unsigned int);

void InitUART(int Port,int Baudrate);
void PrintUART0(char *s);

int Main()
{	

	
		
	volatile UINT16 *from_add,*to_add;
	int i;
	InitUART(0,0x500);
	PrintUART0("ARM Starting...\n");

	to_add= (UINT16 *)0x0;
	from_add=(UINT16 *)0x500000;
	for(i=0;i<AM_WORD_COUNT;i++)
		{*((volatile UINT16 *)AM_START_ADDR + AM_ADDR_UNLOCK1) = AM_DATA_UNLOCK1;       
		*((volatile UINT16 *)AM_START_ADDR + AM_ADDR_UNLOCK2) = AM_DATA_UNLOCK2;
		*((volatile UINT16 *)AM_START_ADDR + AM_ADDR_UNLOCK1) = AM_SETUP_WRITE;     
  		*to_add++ =*from_add++ ;
		PrintUART0("P");}
	PrintUART0("Flash Programe Sucessfully!!!\n");
	return 0;	
}

void PrintUART0(char *s)
{
	for(;*s!='\0';s++)
		{while(!(USTAT0&0x40));
		UTXBUF0=*s;}		
}


void InitUART(int Port,int Baudrate)
{
	if(Port==0)
		{ULCON0=0x03;
		UCON0=0x09;
		UBRDIV0=Baudrate;   
		}
}


void Delay(unsigned int x)
{
	unsigned int i,j,k;
	for(i=0;i<=x;i++)
		for(j=0;j<0xff;j++)
			for(k=0;k<0xff;k++);
}