C++ NOR_WRITE函数代码示例

/**
  * @brief  Writes a half-word to the NOR memory.
  *         This function returns the NOR memory status after block erase operation.  
  * @param  uwWriteAddress : NOR memory internal address to write to.
  *         uhData : Data to write.
  * @retval NOR_Status: The returned value can be: NOR_SUCCESS, NOR_ERROR
  *         or NOR_TIMEOUT.
  */   
NOR_Status NOR_WriteHalfWord(uint32_t uwWriteAddress, uint16_t uhData)
{
  NOR_WRITE(ADDR_SHIFT(0x0555), 0x00AA);
  NOR_WRITE(ADDR_SHIFT(0x02AA), 0x0055);
  NOR_WRITE(ADDR_SHIFT(0x0555), 0x00A0);
  NOR_WRITE((NOR_BANK_ADDR + uwWriteAddress), uhData);

  return (NOR_GetStatus(PROGRAM_TIMEOUT));
}

/******************************************************************************
* Function Name  : FSMC_NOR_WriteHalfWord
* Description    : Writes a half-word to the NOR memory. 
* Input          : - WriteAddr : NOR memory internal address to write to.
*                  - Data : Data to write. 
* Output         : None
* Return         : NOR_Status:The returned value can be: NOR_SUCCESS, NOR_ERROR
*                  or NOR_TIMEOUT
*******************************************************************************/
NOR_Status FSMC_NOR_WriteHalfWord(uint32_t WriteAddr, uint16_t Data)
{
  NOR_WRITE(ADDR_SHIFT(0x0555), 0x00AA);
  NOR_WRITE(ADDR_SHIFT(0x02AA), 0x0055);
  NOR_WRITE(ADDR_SHIFT(0x0555), 0x00A0);
  NOR_WRITE((Bank1_NOR2_ADDR + WriteAddr), Data);

  return (FSMC_NOR_GetStatus(Program_Timeout));
}

/**
  * @brief  Reads a half-word buffer from the NOR memory.
  * @param  hnor: pointer to the NOR handle
  * @param  uwAddress: NOR memory internal address to read from.
  * @param  pData: pointer to the buffer that receives the data read from the 
  *         NOR memory.
  * @param  uwBufferSize : number of Half word to read.
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_NOR_ReadBuffer(NOR_HandleTypeDef *hnor, uint32_t uwAddress, uint16_t *pData, uint32_t uwBufferSize)
{
  uint32_t deviceaddress = 0;
  
  /* Process Locked */
  __HAL_LOCK(hnor);
  
  /* Check the NOR controller state */
  if(hnor->State == HAL_NOR_STATE_BUSY)
  {
     return HAL_BUSY;
  }
  
  /* Select the NOR device address */
  if (hnor->Init.NSBank == FMC_NORSRAM_BANK1)
  {
    deviceaddress = NOR_MEMORY_ADRESS1;
  }
  else if (hnor->Init.NSBank == FMC_NORSRAM_BANK2)
  {
    deviceaddress = NOR_MEMORY_ADRESS2;
  }
  else if (hnor->Init.NSBank == FMC_NORSRAM_BANK3)
  {
    deviceaddress = NOR_MEMORY_ADRESS3;
  }
  else /* FMC_NORSRAM_BANK4 */
  {
    deviceaddress = NOR_MEMORY_ADRESS4;
  }  
    
  /* Update the NOR controller state */
  hnor->State = HAL_NOR_STATE_BUSY;
  
  /* Send read data command */
  NOR_WRITE(NOR_ADDR_SHIFT(deviceaddress, NOR_MEMORY_8B, NOR_CMD_ADDRESS_FIRST), NOR_CMD_DATA_FIRST); 
  NOR_WRITE(NOR_ADDR_SHIFT(deviceaddress, NOR_MEMORY_8B, NOR_CMD_ADDRESS_SECOND), NOR_CMD_DATA_SECOND);  
  NOR_WRITE(uwAddress, 0x00F0);
  
  /* Read buffer */
  while( uwBufferSize > 0) 
  {
    *pData++ = *(__IO uint16_t *)uwAddress;
    uwAddress += 2;
    uwBufferSize--;
  } 
  
  /* Check the NOR controller state */
  hnor->State = HAL_NOR_STATE_READY;
  
  /* Process unlocked */
  __HAL_UNLOCK(hnor);
  
  return HAL_OK;  
}

/******************************************************************************
* Function Name  : FSMC_NOR_ReadID
* Description    : Reads NOR memory's Manufacturer and Device Code.
* Input          : - NOR_ID: pointer to a NOR_IDTypeDef structure which will hold
*                    the Manufacturer and Device Code.
* Output         : None
* Return         : None
*******************************************************************************/
void FSMC_NOR_ReadID(NOR_IDTypeDef* NOR_ID)
{
  NOR_WRITE(ADDR_SHIFT(0x0555), 0x00AA);
  NOR_WRITE(ADDR_SHIFT(0x02AA), 0x0055);
  NOR_WRITE(ADDR_SHIFT(0x0555), 0x0090);

  NOR_ID->Manufacturer_Code = *(__IO uint16_t *) ADDR_SHIFT(0x0000);
  NOR_ID->Device_Code1 = *(__IO uint16_t *) ADDR_SHIFT(0x0001);
  NOR_ID->Device_Code2 = *(__IO uint16_t *) ADDR_SHIFT(0x000E);
  NOR_ID->Device_Code3 = *(__IO uint16_t *) ADDR_SHIFT(0x000F);
}

/**
  * @brief  Returns the NOR memory to Read mode and resets the errors in the NOR 
  *         memory Status Register.  
  * @param  None
  * @retval NOR_SUCCESS
  */
NOR_Status NOR_Reset(void)
{
  NOR_WRITE(ADDR_SHIFT(0x00555), 0x00AA); 
  NOR_WRITE(ADDR_SHIFT(0x002AA), 0x0055); 
  
  /* Send read mode command */
  NOR_WRITE(NOR_BANK_ADDR, 0x00F0); 
  
  /* Return status success operation */
  return (NOR_SUCCESS);
}

/**
  * @brief  Reads a half-word from the NOR memory. 
  * @param  uwReadAddress : NOR memory internal address to read from. 
  * @retval Half-word read from the NOR memory.
  */
uint16_t NOR_ReadHalfWord(uint32_t uwReadAddress)
{
  NOR_WRITE(ADDR_SHIFT(0x00555), 0x00AA); 
  NOR_WRITE(ADDR_SHIFT(0x002AA), 0x0055);  
  
  /* Send read data command */
  NOR_WRITE((NOR_BANK_ADDR + uwReadAddress), 0x00F0 );

  /* Return the data read */
  return (*(__IO uint16_t *)((NOR_BANK_ADDR + uwReadAddress)));
}

/**
  * @brief  Read NOR flash IDs
  * @param  hnor: pointer to the NOR handle
  * @param  pNOR_ID : pointer to NOR ID structure
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_NOR_Read_ID(NOR_HandleTypeDef *hnor, NOR_IDTypeDef *pNOR_ID)
{
  uint32_t deviceaddress = 0;
  
  /* Process Locked */
  __HAL_LOCK(hnor);
  
  /* Check the NOR controller state */
  if(hnor->State == HAL_NOR_STATE_BUSY)
  {
     return HAL_BUSY;
  }
  
  /* Select the NOR device address */
  if (hnor->Init.NSBank == FMC_NORSRAM_BANK1)
  {
    deviceaddress = NOR_MEMORY_ADRESS1;
  }
  else if (hnor->Init.NSBank == FMC_NORSRAM_BANK2)
  {
    deviceaddress = NOR_MEMORY_ADRESS2;
  }
  else if (hnor->Init.NSBank == FMC_NORSRAM_BANK3)
  {
    deviceaddress = NOR_MEMORY_ADRESS3;
  }
  else /* FMC_NORSRAM_BANK4 */
  {
    deviceaddress = NOR_MEMORY_ADRESS4;
  }  
    
  /* Update the NOR controller state */
  hnor->State = HAL_NOR_STATE_BUSY;
  
  /* Send read ID command */
  NOR_WRITE(NOR_ADDR_SHIFT(deviceaddress, NOR_MEMORY_8B, NOR_CMD_ADDRESS_FIRST), NOR_CMD_DATA_FIRST);
  NOR_WRITE(NOR_ADDR_SHIFT(deviceaddress, NOR_MEMORY_8B, NOR_CMD_ADDRESS_SECOND), NOR_CMD_DATA_SECOND);
  NOR_WRITE(NOR_ADDR_SHIFT(deviceaddress, NOR_MEMORY_8B, NOR_CMD_ADDRESS_THIRD), NOR_CMD_DATA_AUTO_SELECT);

  /* Read the NOR IDs */
  pNOR_ID->Manufacturer_Code = *(__IO uint16_t *) NOR_ADDR_SHIFT(deviceaddress, NOR_MEMORY_8B, MC_ADDRESS);
  pNOR_ID->Device_Code1      = *(__IO uint16_t *) NOR_ADDR_SHIFT(deviceaddress, NOR_MEMORY_8B, DEVICE_CODE1_ADDR);
  pNOR_ID->Device_Code2      = *(__IO uint16_t *) NOR_ADDR_SHIFT(deviceaddress, NOR_MEMORY_8B, DEVICE_CODE2_ADDR);
  pNOR_ID->Device_Code3      = *(__IO uint16_t *) NOR_ADDR_SHIFT(deviceaddress, NOR_MEMORY_8B, DEVICE_CODE3_ADDR);
  
  /* Check the NOR controller state */
  hnor->State = HAL_NOR_STATE_READY;
  
  /* Process unlocked */
  __HAL_UNLOCK(hnor);   
  
  return HAL_OK;
}

/**
  * @brief  Reads a block of data from the FMC NOR memory.
  * @param  pBuffer: pointer to the buffer that receives the data read from the 
  *         NOR memory.
  * @param  uwReadAddress: NOR memory internal address to read from.
  * @param  uwBufferSize : number of Half word to read.
  * @retval None
  */
void NOR_ReadBuffer(uint16_t* pBuffer, uint32_t uwReadAddress, uint32_t uwBufferSize)
{
  NOR_WRITE(ADDR_SHIFT(0x0555), 0x00AA);
  NOR_WRITE(ADDR_SHIFT(0x02AA), 0x0055);
  NOR_WRITE((NOR_BANK_ADDR + uwReadAddress), 0x00F0);

  for(; uwBufferSize != 0x00; uwBufferSize--) /* while there is data to read */
  {
    /* Read a Halfword from the NOR */
    *pBuffer++ = *(__IO uint16_t *)((NOR_BANK_ADDR + uwReadAddress));
    uwReadAddress = uwReadAddress + 2; 
  }  
}

/*******************************************************************************
* Function Name  : FSMC_NOR_ReadBuffer
* Description    : Reads a block of data from the FSMC NOR memory.
* Input          : - pBuffer : pointer to the buffer that receives the data read 
*                    from the NOR memory.
*                  - ReadAddr : NOR memory internal address to read from.
*                  - NumHalfwordToRead : number of Half word to read.
* Output         : None
* Return         : None
*******************************************************************************/
void FSMC_NOR_ReadBuffer(uint16_t* pBuffer, uint32_t ReadAddr, uint32_t NumHalfwordToRead)
{
  NOR_WRITE(ADDR_SHIFT(0x0555), 0x00AA);
  NOR_WRITE(ADDR_SHIFT(0x02AA), 0x0055);
  NOR_WRITE((Bank1_NOR2_ADDR + ReadAddr), 0x00F0);

  for(; NumHalfwordToRead != 0x00; NumHalfwordToRead--) /* while there is data to read */
  {
    /* Read a Halfword from the NOR */
    *pBuffer++ = *(__IO uint16_t *)((Bank1_NOR2_ADDR + ReadAddr));
    ReadAddr = ReadAddr + 2; 
  }  
}

/**
  * @brief  Read data from NOR memory
  * @param  hnor: pointer to the NOR handle
  * @param  pAddress: pointer to Device address
  * @param  pData : pointer to read data
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_NOR_Read(NOR_HandleTypeDef *hnor, uint32_t *pAddress, uint16_t *pData)
{
    uint32_t deviceAddress = 0;

    /* Process Locked */
    __HAL_LOCK(hnor);

    /* Check the NOR controller state */
    if(hnor->State == HAL_NOR_STATE_BUSY)
    {
        return HAL_BUSY;
    }

    /* Select the NOR device address */
    if (hnor->Init.NSBank == FMC_NORSRAM_BANK1)
    {
        deviceAddress = NOR_MEMORY_ADRESS1;
    }
    else if (hnor->Init.NSBank == FMC_NORSRAM_BANK2)
    {
        deviceAddress = NOR_MEMORY_ADRESS2;
    }
    else if (hnor->Init.NSBank == FMC_NORSRAM_BANK3)
    {
        deviceAddress = NOR_MEMORY_ADRESS3;
    }
    else /* FMC_NORSRAM_BANK4 */
    {
        deviceAddress = NOR_MEMORY_ADRESS4;
    }

    /* Update the NOR controller state */
    hnor->State = HAL_NOR_STATE_BUSY;

    /* Send read data command */
    NOR_WRITE(NOR_ADDR_SHIFT(deviceAddress, NOR_MEMORY_8B, 0x00555), 0x00AA);
    NOR_WRITE(NOR_ADDR_SHIFT(deviceAddress, NOR_MEMORY_8B, 0x002AA), 0x0055);
    NOR_WRITE(pAddress, 0x00F0);

    /* Read the data */
    *pData = *(__IO uint32_t *)pAddress;

    /* Check the NOR controller state */
    hnor->State = HAL_NOR_STATE_READY;

    /* Process unlocked */
    __HAL_UNLOCK(hnor);

    return HAL_OK;
}

/**
  * @brief  Program data to NOR memory 
  * @param  hnor: pointer to the NOR handle
  * @param  pAddress: Device address
  * @param  pData : pointer to the data to write   
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_NOR_Program(NOR_HandleTypeDef *hnor, uint32_t *pAddress, uint16_t *pData)
{
  uint32_t deviceaddress = 0;
  
  /* Process Locked */
  __HAL_LOCK(hnor);
  
  /* Check the NOR controller state */
  if(hnor->State == HAL_NOR_STATE_BUSY)
  {
     return HAL_BUSY;
  }
  
  /* Select the NOR device address */
  if (hnor->Init.NSBank == FMC_NORSRAM_BANK1)
  {
    deviceaddress = NOR_MEMORY_ADRESS1;
  }
  else if (hnor->Init.NSBank == FMC_NORSRAM_BANK2)
  {
    deviceaddress = NOR_MEMORY_ADRESS2;
  }
  else if (hnor->Init.NSBank == FMC_NORSRAM_BANK3)
  {
    deviceaddress = NOR_MEMORY_ADRESS3;
  }
  else /* FMC_NORSRAM_BANK4 */
  {
    deviceaddress = NOR_MEMORY_ADRESS4;
  } 
    
  /* Update the NOR controller state */
  hnor->State = HAL_NOR_STATE_BUSY;
  
  /* Send program data command */
  NOR_WRITE(NOR_ADDR_SHIFT(deviceaddress, NOR_MEMORY_8B, NOR_CMD_ADDRESS_FIRST), NOR_CMD_DATA_FIRST);
  NOR_WRITE(NOR_ADDR_SHIFT(deviceaddress, NOR_MEMORY_8B, NOR_CMD_ADDRESS_SECOND), NOR_CMD_DATA_SECOND);
  NOR_WRITE(NOR_ADDR_SHIFT(deviceaddress, NOR_MEMORY_8B, NOR_CMD_ADDRESS_THIRD), NOR_CMD_DATA_PROGRAM);

  /* Write the data */
  NOR_WRITE(pAddress, *pData);
  
  /* Check the NOR controller state */
  hnor->State = HAL_NOR_STATE_READY;
  
  /* Process unlocked */
  __HAL_UNLOCK(hnor);
  
  return HAL_OK;  
}

/**
  * @brief  Read data from NOR memory.
  * @param  hnor: pointer to a NOR_HandleTypeDef structure that contains
  *                the configuration information for NOR module.
  * @param  pAddress: pointer to Device address
  * @param  pData : pointer to read data  
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_NOR_Read(NOR_HandleTypeDef *hnor, uint32_t *pAddress, uint16_t *pData)
{
  uint32_t deviceaddress = 0;
  
  /* Process Locked */
  __HAL_LOCK(hnor);
  
  /* Check the NOR controller state */
  if(hnor->State == HAL_NOR_STATE_BUSY)
  {
     return HAL_BUSY;
  }
  
  /* Select the NOR device address */
  if (hnor->Init.NSBank == FMC_NORSRAM_BANK1)
  {
    deviceaddress = NOR_MEMORY_ADRESS1;
  }
  else if (hnor->Init.NSBank == FMC_NORSRAM_BANK2)
  {
    deviceaddress = NOR_MEMORY_ADRESS2;
  }
  else if (hnor->Init.NSBank == FMC_NORSRAM_BANK3)
  {
    deviceaddress = NOR_MEMORY_ADRESS3;
  }
  else /* FMC_NORSRAM_BANK4 */
  {
    deviceaddress = NOR_MEMORY_ADRESS4;
  } 
    
  /* Update the NOR controller state */
  hnor->State = HAL_NOR_STATE_BUSY;
  
  /* Send read data command */
  NOR_WRITE(NOR_ADDR_SHIFT(deviceaddress, uwNORMemoryDataWidth, NOR_CMD_ADDRESS_FIRST), NOR_CMD_DATA_FIRST); 
  NOR_WRITE(NOR_ADDR_SHIFT(deviceaddress, uwNORMemoryDataWidth, NOR_CMD_ADDRESS_SECOND), NOR_CMD_DATA_SECOND);  
  NOR_WRITE((uint32_t)pAddress, NOR_CMD_DATA_READ_RESET);

  /* Read the data */
  *pData = *(__IO uint32_t *)(uint32_t)pAddress;
  
  /* Check the NOR controller state */
  hnor->State = HAL_NOR_STATE_READY;
  
  /* Process unlocked */
  __HAL_UNLOCK(hnor);
  
  return HAL_OK;  
}

/*
*********************************************************************************************************
*	函 数 名: NOR_ReadID
*	功能说明: 读取NOR Flash的器件ID
*	形    参: 无
*	返 回 值: 器件ID,32Bit, 高8bit 是Manufacturer_Code, 低24bit是器件ID
*********************************************************************************************************
*/
uint32_t NOR_ReadID(void)
{
	uint32_t uiID;
	uint8_t id1, id2, id3, id4;

	NOR_WRITE(ADDR_SHIFT(0x0555), 0x00AA);
	NOR_WRITE(ADDR_SHIFT(0x02AA), 0x0055);
	NOR_WRITE(ADDR_SHIFT(0x0555), 0x0090);

	id1 = *(__IO uint16_t *) ADDR_SHIFT(0x0000);
	id2 = *(__IO uint16_t *) ADDR_SHIFT(0x0001);
	id3 = *(__IO uint16_t *) ADDR_SHIFT(0x000E);
	id4 = *(__IO uint16_t *) ADDR_SHIFT(0x000F);

	uiID = ((uint32_t)id1 << 24) | ((uint32_t)id2 << 16)  | ((uint32_t)id3 << 8) | id4;

	NOR_WRITE(NOR_FLASH_ADDR, 0x00F0 );		/* 退出ID模式 */

	return uiID;
}

/**
  * @brief  Writes a half-word buffer to the FMC NOR memory. This function 
  *         must be used only with S29GL128P NOR memory. 
  * @param  pBuffer : pointer to buffer.  
  *         uwWriteAddress : NOR memory internal address from which the data 
  *         will be written.
  *         uwBufferSize : number of Half words to write. The maximum allowed 
  *         value is 32 Half words (64 bytes).
  * @retval NOR_Status: The returned value can be: NOR_SUCCESS, NOR_ERROR
  *         or NOR_TIMEOUT.
  */ 
NOR_Status NOR_ProgramBuffer(uint16_t* pBuffer, uint32_t uwWriteAddress, uint32_t uwBufferSize)
{
  uint32_t lastloadedaddress = 0;
  uint32_t currentaddress = 0;
  uint32_t endaddress = 0;

  /* Initialize variables */
  currentaddress = uwWriteAddress;
  endaddress = uwWriteAddress + uwBufferSize - 1;
  lastloadedaddress = uwWriteAddress;

  /* Issue unlock command sequence */
  NOR_WRITE(ADDR_SHIFT(0x00555), 0x00AA);
  NOR_WRITE(ADDR_SHIFT(0x02AA), 0x0055);  

  /* Write Buffer Load Command */
  NOR_WRITE(ADDR_SHIFT(uwWriteAddress), 0x0025);
  NOR_WRITE(ADDR_SHIFT(uwWriteAddress), (uwBufferSize - 1));

  /* Load Data into NOR Buffer */
  while(currentaddress <= endaddress)
  {
    /* Store last loaded address & data value (for polling) */
    lastloadedaddress = currentaddress;
 
    NOR_WRITE(ADDR_SHIFT(currentaddress), *pBuffer++);
    currentaddress += 1; 
  }

  NOR_WRITE(ADDR_SHIFT(lastloadedaddress), 0x29);
  
  return(NOR_GetStatus(PROGRAM_TIMEOUT));
}

/*******************************************************************************
* Function Name  : FSMC_NOR_ProgramBuffer
* Description    : Writes a half-word buffer to the FSMC NOR memory. This function 
*                  must be used only with S29GL128P NOR memory.
* Input          : - pBuffer : pointer to buffer. 
*                  - WriteAddr: NOR memory internal address from which the data 
*                    will be written.
*                  - NumHalfwordToWrite: number of Half words to write.
*                    The maximum allowed value is 32 Half words (64 bytes).
* Output         : None
* Return         : NOR_Status:The returned value can be: NOR_SUCCESS, NOR_ERROR
*                  or NOR_TIMEOUT
*******************************************************************************/
NOR_Status FSMC_NOR_ProgramBuffer(uint16_t* pBuffer, uint32_t WriteAddr, uint32_t NumHalfwordToWrite)
{       
  uint32_t lastloadedaddress = 0x00;
  uint32_t currentaddress = 0x00;
  uint32_t endaddress = 0x00;

  /* Initialize variables */
  currentaddress = WriteAddr;
  endaddress = WriteAddr + NumHalfwordToWrite - 1;
  lastloadedaddress = WriteAddr;

  /* Issue unlock command sequence */
  NOR_WRITE(ADDR_SHIFT(0x00555), 0x00AA);

  NOR_WRITE(ADDR_SHIFT(0x02AA), 0x0055);  

  /* Write Write Buffer Load Command */
  NOR_WRITE(ADDR_SHIFT(WriteAddr), 0x0025);
  NOR_WRITE(ADDR_SHIFT(WriteAddr), (NumHalfwordToWrite - 1));

  /* Load Data into NOR Buffer */
  while(currentaddress <= endaddress)
  {
    /* Store last loaded address & data value (for polling) */
    lastloadedaddress = currentaddress;
 
    NOR_WRITE(ADDR_SHIFT(currentaddress), *pBuffer++);
    currentaddress += 1; 
  }

  NOR_WRITE(ADDR_SHIFT(lastloadedaddress), 0x29);
  
  return(FSMC_NOR_GetStatus(Program_Timeout));
}