nand_test.c

IARSOURCECODE是基于LPC2478嵌入式软件IAR EWARM V4.42的应用实例代码

#include "lpc2468.h"
#include "type.h"
#include "target.h"
#include "uart0.h"

#include "k9f2g8.h"

BYTE ReadBuf[NF_PAGE_SIZE], WriteBuf[NF_PAGE_SIZE];
extern BYTE InvalidBlockTable[K9F2G08_BLOCKNUM];

int main()
{
	DWORD FlashID;
	DWORD i;

        TargetResetInit();
        UART0Init(9600);

        /* NAND初始化 */
	NF_Init();
	NF_Reset();

        UART0_puts("NAND Flash test successed!\r\n");

        /* ID 校验 */
	FlashID = NF_ReadID();
	if ( (FlashID & 0xFFFF0000) != (K9F2G08_ID &0xFFFF0000))
	{
          UART0_puts("NAND Flash ID error!\r\n");
	  while( 1 );	
	}

        /* NAND Flash 擦除 */
	for ( i = 0; i < 2048; i++ )
	{
  	  if ( NF_EraseBlock( i ) == FALSE )
	  {
                 UART0_puts("NAND Flash block erase error!\r\n");
		 while( 1 );
	  }
	}

        /* For the test program, the pattern for the whole page 2048 bytes
  is organized as: 0x0, 0x1, ... 0xFF, 0x0, 0x01...... */
	for ( i = 0; i < NF_RW_PAGE_SIZE; i++ )
	{
		ReadBuf[i] = 0;
		WriteBuf[i] = i;
	}
	
        if ( NF_CheckValidBlock() == FALSE )
	{	
          UART0_puts("NAND Flash valid block check error!\r\n");
	  while ( 1 );		
	}
	
	/* If it's a valid block, program all the pages of this block,
	read back, and finally validate. */
	/* simple program to program the block 0 and page 0 */
	if ( InvalidBlockTable[0] == 0 )
	{	
		if ( NF_PageProgram( 0, 0, &WriteBuf[0] ) == FALSE )
		{
  	          UART0_puts("NAND Flash page program error!\r\n");
		  while ( 1 );	
		}

		if ( NF_PageRead( 0, 0, &ReadBuf[0] ) == FALSE )
		{
                  UART0_puts("NAND Flash page read error!\r\n");
		  while ( 1 );	
		}

		/* Comparison read and write buffer */
		for ( i = 0; i < NF_RW_PAGE_SIZE; i++ )
		{
		  if ( ReadBuf[i] != WriteBuf[i] )
		  {
                    UART0_puts("NAND Flash Read/Write error!\r\n");
                    while ( 1 );	
		  }
		}
	}

        UART0_puts("NAND Flash test successed!\r\n");
	while(1);

}