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stm32f10x_flash.c ( File view )

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			/**
  ******************************************************************************
  * @file    stm32f10x_flash.c
  * @author  MCD Application Team
  * @version V3.5.0
  * @date    11-March-2011
  * @brief   This file provides all the FLASH firmware functions.
  ******************************************************************************
  * @attention
  *
  * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
  * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
  * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
  * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
  * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
  * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
  *
  * <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "stm32f10x_flash.h"

/** @addtogroup STM32F10x_StdPeriph_Driver
  * @{

  */

/** @defgroup FLASH 
  * @brief FLASH driver modules
  * @{

  */ 

/** @defgroup FLASH_Private_TypesDefinitions
  * @{

  */

/**
  * @
}
  */ 

/** @defgroup FLASH_Private_Defines
  * @{

  */ 

/* Flash Access Control Register bits */
#define ACR_LATENCY_Mask         ((uint32_t)0x00000038)
#define ACR_HLFCYA_Mask          ((uint32_t)0xFFFFFFF7)
#define ACR_PRFTBE_Mask          ((uint32_t)0xFFFFFFEF)

/* Flash Access Control Register bits */
#define ACR_PRFTBS_Mask          ((uint32_t)0x00000020) 

/* Flash Control Register bits */
#define CR_PG_Set                ((uint32_t)0x00000001)
#define CR_PG_Reset              ((uint32_t)0x00001FFE) 
#define CR_PER_Set               ((uint32_t)0x00000002)
#define CR_PER_Reset             ((uint32_t)0x00001FFD)
#define CR_MER_Set               ((uint32_t)0x00000004)
#define CR_MER_Reset             ((uint32_t)0x00001FFB)
#define CR_OPTPG_Set             ((uint32_t)0x00000010)
#define CR_OPTPG_Reset           ((uint32_t)0x00001FEF)
#define CR_OPTER_Set             ((uint32_t)0x00000020)
#define CR_OPTER_Reset           ((uint32_t)0x00001FDF)
#define CR_STRT_Set              ((uint32_t)0x00000040)
#define CR_LOCK_Set              ((uint32_t)0x00000080)

/* FLASH Mask */
#define RDPRT_Mask               ((uint32_t)0x00000002)
#define WRP0_Mask                ((uint32_t)0x000000FF)
#define WRP1_Mask                ((uint32_t)0x0000FF00)
#define WRP2_Mask                ((uint32_t)0x00FF0000)
#define WRP3_Mask                ((uint32_t)0xFF000000)
#define OB_USER_BFB2             ((uint16_t)0x0008)

/* FLASH Keys */
#define RDP_Key                  ((uint16_t)0x00A5)
#define FLASH_KEY1               ((uint32_t)0x45670123)
#define FLASH_KEY2               ((uint32_t)0xCDEF89AB)

/* FLASH BANK address */
#define FLASH_BANK1_END_ADDRESS   ((uint32_t)0x807FFFF)

/* Delay definition */   
#define EraseTimeout          ((uint32_t)0x000B0000)
#define ProgramTimeout        ((uint32_t)0x00002000)
/**
  * @
}
  */ 

/** @defgroup FLASH_Private_Macros
  * @{

  */

/**
  * @
}
  */ 

/** @defgroup FLASH_Private_Variables
  * @{

  */

/**
  * @
}
  */ 

/** @defgroup FLASH_Private_FunctionPrototypes
  * @{

  */
  
/**
  * @
}
  */

/** @defgroup FLASH_Private_Functions
  * @{

  */

/**
@code  
 
 This driver provides functions to configure and program the Flash memory of all STM32F10x devices,
 including the latest STM32F10x_XL density devices. 

 STM32F10x_XL devices feature up to 1 Mbyte with dual bank architecture for read-while-write (RWW) capability:
    - bank1: fixed size of 512 Kbytes (256 pages of 2Kbytes each)
    - bank2: up to 512 Kbytes (up to 256 pages of 2Kbytes each)
 While other STM32F10x devices features only one bank with memory up to 512 Kbytes.

 In version V3.3.0, some functions were updated and new ones were added to support
 STM32F10x_XL devices. Thus some functions manages all devices, while other are 
 dedicated for XL devices only.
 
 The table below presents the list of available functions depending on the used STM32F10x devices.  
      
   ***************************************************
   * Legacy functions used for all STM32F10x devices *
   ***************************************************
   +----------------------------------------------------------------------------------------------------------------------------------+
   |       Functions prototypes         |STM32F10x_XL|Other STM32F10x|    Comments                                                    |
   |                                    |   devices  |  devices      |                                                                |
   |----------------------------------------------------------------------------------------------------------------------------------|
   |FLASH_SetLatency                    |    Yes     |      Yes      | No change                                                      |
   |----------------------------------------------------------------------------------------------------------------------------------|
   |FLASH_HalfCycleAccessCmd            |    Yes     |      Yes      | No change                                                      |
   |----------------------------------------------------------------------------------------------------------------------------------|
   |FLASH_PrefetchBufferCmd             |    Yes     |      Yes      | No change                                                      |
   |----------------------------------------------------------------------------------------------------------------------------------|
   |FLASH_Unlock                        |    Yes     |      Yes      | - For STM32F10X_XL devices: unlock Bank1 and Bank2.            |
   |                                    |            |               | - For other devices: unlock Bank1 and it is equivalent         |
   |                                    |            |               |   to FLASH_UnlockBank1 function.                               |
   |----------------------------------------------------------------------------------------------------------------------------------|
   |FLASH_Lock                          |    Yes     |      Yes      | - For STM32F10X_XL devices: lock Bank1 and Bank2.              |
   |                                    |            |               | - For other devices: lock Bank1 and it is equivalent           |
   |                                    |            |               |   to FLASH_LockBank1 function.                                 |
   |----------------------------------------------------------------------------------------------------------------------------------|
   |FLASH_ErasePage                     |    Yes     |      Yes      | - For STM32F10x_XL devices: erase a page in Bank1 and Bank2    |
   |                                    |            |               | - For other devices: erase a page in Bank1                     |
   |----------------------------------------------------------------------------------------------------------------------------------|
   |FLASH_EraseAllPages                 |    Yes     |      Yes      | - For STM32F10x_XL devices: erase all pages in Bank1 and Bank2 |
   |                                    |            |               | - For other devices: erase all pages in Bank1                  |
   |----------------------------------------------------------------------------------------------------------------------------------|
   |FLASH_EraseOptionBytes              |    Yes     |      Yes      | No change                                                      |
   |----------------------------------------------------------------------------------------------------------------------------------|
   |FLASH_ProgramWord                   |    Yes     |      Yes      | Updated to program up to 1MByte (depending on the used device) |
   |----------------------------------------------------------------------------------------------------------------------------------|
   |FLASH_ProgramHalfWord               |    Yes     |      Yes      | Updated to program up to 1MByte (depending on the used device) |
   |----------------------------------------------------------------------------------------------------------------------------------|
   |FLASH_ProgramOptionByteData         |    Yes     |      Yes      | No change                                                      |
   |----------------------------------------------------------------------------------------------------------------------------------|
   |FLASH_EnableWriteProtection         |    Yes     |      Yes      | No change                                                      |
   |----------------------------------------------------------------------------------------------------------------------------------|
   |FLASH_ReadOutProtection             |    Yes     |      Yes      | No change                                                      |
   |----------------------------------------------------------------------------------------------------------------------------------|
   |FLASH_UserOptionByteConfig          |    Yes     |      Yes      | No change                                                      |
   |----------------------------------------------------------------------------------------------------------------------------------|
   |FLASH_GetUserOptionByte             |    Yes     |      Yes      | No change                                                      |
   |----------------------------------------------------------------------------------------------------------------------------------|
   |FLASH_GetWriteProtectionOptionByte  |    Yes     |      Yes      | No change                                                      |
   |---------------------------------------------------------------------------------------------------------------------
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