main.c

某培训中心的实验代码

#include "2410addr.h"
#include "2410lib.h"
#include "def.h"
#define NFBlcokAddr 0x3ffc000


U32 ReadChipId(void);
U32 EraseBlock(U32 addr);
void ReadPage(U32 addr, U8 *buf);
U32 WritePage(U32 addr, U8 *buf);
void InitNandCfg(void);

void Main(void)
{
	U32 i;
	U8 buf[512];
	U32 ID;
     ChangeClockDivider(1,1);
     ChangeMPllValue(0xa1,0x3,0x1);   
     Port_Init();
     Uart_Select(0);
     Uart_Init(0,115200);
	
	InitNandCfg();
	
	ID=ReadChipId();//ID=EC76
	Uart_Printf("nand flash`s ID is:%x\n",ID);
	
	if(EraseBlock(NFBlcokAddr>>9)==0)  
  	{	
  		Uart_Printf("block %4d is erased\n",NFBlcokAddr>>14);
  		Uart_Printf("Writed datas are:\n");
  		for(i=0; i<512; i++)
			{
			buf[i] =0x88;
			Uart_Printf("%4x", buf[i]);	
			}
	    WritePage(NFBlcokAddr>>9, buf);	
	    for(i=0; i<512; i++)
		    buf[i] = 1;
	    ReadPage(NFBlcokAddr>>9, buf);
		Uart_Printf("Read datas are:\n");
	    for(i=0; i<512; i++)
		    Uart_Printf("%4x", buf[i]);
        while(1);
    }

	Uart_Printf("block %4x erased is bad\n",NFBlcokAddr);
}