STM32 FSMC K9k2g08u0m 读写不一样

只看该作者 · 2013-1-19 23:27

读写函数如下
u32 FSMC_NAND_WriteSmallPage(u8 *pBuffer, NAND_ADDRESS Address, u32 NumPageToWrite)
{
  u32 index = 0x00, numpagewritten = 0x00, addressstatus = NAND_VALID_ADDRESS;
  u32 status = NAND_READY, size = 0x00;

  while((NumPageToWrite != 0x00) && (addressstatus == NAND_VALID_ADDRESS) && (status == NAND_READY))
  {
/* Page write command and address */
*(vu8 *)(Bank_NAND_ADDR | CMD_AREA) = NAND_CMD_PAGEPROGRAM;

*(vu8 *)(Bank_NAND_ADDR | ADDR_AREA) = 0x00;
*(vu8 *)(Bank_NAND_ADDR | ADDR_AREA) = 0X00;
*(vu8 *)(Bank_NAND_ADDR | ADDR_AREA) = ADDR_1st_CYCLE(ROW_ADDRESS);
*(vu8 *)(Bank_NAND_ADDR | ADDR_AREA) = ADDR_2nd_CYCLE(ROW_ADDRESS);
*(vu8 *)(Bank_NAND_ADDR | ADDR_AREA) = ADDR_3rd_CYCLE(ROW_ADDRESS);
/* Calculate the size */
size = NAND_PAGE_SIZE + (NAND_PAGE_SIZE * numpagewritten);

/* Write data */
for(; index < size; index++)
{
   *(vu8 *)(Bank_NAND_ADDR | DATA_AREA) = pBuffer[index];
}

*(vu8 *)(Bank_NAND_ADDR | CMD_AREA) = NAND_CMD_PAGEPROGRAM_TRUE;

//
// while( GPIO_ReadInputDataBit(GPIOD, GPIO_Pin_6) == 0 );

/* Check status for successful operation */
status = FSMC_NAND_GetStatus();

if(status == NAND_READY)
{
   numpagewritten++;

   NumPageToWrite--;

   /* Calculate Next small page Address */
   addressstatus = FSMC_NAND_AddressIncrement(&Address);
}
  }

  return (status | addressstatus);
}
u32 FSMC_NAND_ReadSmallPage(u8 *pBuffer, NAND_ADDRESS Address, u32 NumPageToRead)
{
  u32 index = 0x00, numpageread = 0x00, addressstatus = NAND_VALID_ADDRESS;
  u32 status = NAND_READY, size = 0x00;

  while((NumPageToRead != 0x0) && (addressstatus == NAND_VALID_ADDRESS))
  {
/* Page Read command and page address */
*(vu8 *)(Bank_NAND_ADDR | CMD_AREA) = NAND_CMD_READ_1;

*(vu8 *)(Bank_NAND_ADDR | ADDR_AREA) = 0x00;
*(vu8 *)(Bank_NAND_ADDR | ADDR_AREA) = 0X00;
*(vu8 *)(Bank_NAND_ADDR | ADDR_AREA) = ADDR_1st_CYCLE(ROW_ADDRESS);
*(vu8 *)(Bank_NAND_ADDR | ADDR_AREA) = ADDR_2nd_CYCLE(ROW_ADDRESS);
*(vu8 *)(Bank_NAND_ADDR | ADDR_AREA) = ADDR_3rd_CYCLE(ROW_ADDRESS);
*(vu8 *)(Bank_NAND_ADDR | CMD_AREA) = NAND_CMD_READ_TRUE;

//
//while( GPIO_ReadInputDataBit(GPIOD, GPIO_Pin_6) == 0 );

/* Calculate the size */
size = NAND_PAGE_SIZE + (NAND_PAGE_SIZE * numpageread);

/* Get Data into Buffer */
for(; index < size; index++)
{
   pBuffer[index]= *(vu8 *)(Bank_NAND_ADDR | DATA_AREA);
}

numpageread++;

NumPageToRead--;

/* Calculate page address */
addressstatus = FSMC_NAND_AddressIncrement(&Address);
  }

  status = FSMC_NAND_GetStatus();

  return (status | addressstatus);
}
连续递增填充pBuffer函数：
void Fill_Buffer(u8 *pBuffer, u16 BufferLenght, u32 Offset)
{
  u16 IndexTmp = 0;



  for (IndexTmp = 0; IndexTmp < BufferLenght; IndexTmp++ )
  {
pBuffer[IndexTmp] =IndexTmp+Offset ;

  }
这样可以读写成功
但是当我修改连续填充函数后读写不成功，如：
void Fill_Buffer(u8 *pBuffer, u16 BufferLenght, u32 Offset)
{
  u16 IndexTmp = 0;



  for (IndexTmp = 0; IndexTmp < BufferLenght; IndexTmp++ )
  {
pBuffer[IndexTmp] =2+Offset ;

  }
现在输入都是2后读写不成功

STM32 FSMC K9k2g08u0m 读写不一样

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