main.c

nand flash读写实验代码

#include "2410addr.h"
#include "2410lib.h"
#include "def.h"
#include "nandflash.h"

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);
	Uart_Printf("Nand flash test \n");
	
	InitNandCfg();
	
	ID=ReadChipId();//ID=EC76
	Uart_Printf("nand flash`s ID is:%x\n",ID);
	
	if(EraseBlock(NFBlcokAddr))
  	{	
  		Uart_Printf("block %4x is erased\n",NFBlcokAddr);
  		for(i=0; i<256; i++)
			{
			buf[i] = i;
			Uart_Printf("%4x", buf[i]);	
			}
	    WritePage(NFBlcokAddr, buf);	
	    for(i=0; i<256; i++)
		    buf[i] = 0;
	    ReadPage(NFBlcokAddr, buf);
	
	    for(i=0; i<256; i++)
		    Uart_Printf("%4x", buf[i]);
        while(1);
    }

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