1685 lines
61 KiB
C
1685 lines
61 KiB
C
/**
|
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******************************************************************************
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* @file stm32f10x_flash.c
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* @author MCD Application Team
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* @version V3.5.0
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* @date 11-March-2011
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* @brief This file provides all the FLASH firmware functions.
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******************************************************************************
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* @attention
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*
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* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
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* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
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* TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
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* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
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* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
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* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
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*
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* <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2>
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "stm32f10x_flash.h"
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/** @addtogroup STM32F10x_StdPeriph_Driver
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* @{
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*/
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/** @defgroup FLASH
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* @brief FLASH driver modules
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* @{
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*/
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/** @defgroup FLASH_Private_TypesDefinitions
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* @{
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*/
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/**
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* @}
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*/
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/** @defgroup FLASH_Private_Defines
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* @{
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*/
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/* Flash Access Control Register bits */
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#define ACR_LATENCY_Mask ((uint32_t)0x00000038)
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#define ACR_HLFCYA_Mask ((uint32_t)0xFFFFFFF7)
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#define ACR_PRFTBE_Mask ((uint32_t)0xFFFFFFEF)
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/* Flash Access Control Register bits */
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#define ACR_PRFTBS_Mask ((uint32_t)0x00000020)
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/* Flash Control Register bits */
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#define CR_PG_Set ((uint32_t)0x00000001)
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#define CR_PG_Reset ((uint32_t)0x00001FFE)
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#define CR_PER_Set ((uint32_t)0x00000002)
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#define CR_PER_Reset ((uint32_t)0x00001FFD)
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#define CR_MER_Set ((uint32_t)0x00000004)
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#define CR_MER_Reset ((uint32_t)0x00001FFB)
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#define CR_OPTPG_Set ((uint32_t)0x00000010)
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#define CR_OPTPG_Reset ((uint32_t)0x00001FEF)
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#define CR_OPTER_Set ((uint32_t)0x00000020)
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#define CR_OPTER_Reset ((uint32_t)0x00001FDF)
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#define CR_STRT_Set ((uint32_t)0x00000040)
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#define CR_LOCK_Set ((uint32_t)0x00000080)
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/* FLASH Mask */
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#define RDPRT_Mask ((uint32_t)0x00000002)
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#define WRP0_Mask ((uint32_t)0x000000FF)
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#define WRP1_Mask ((uint32_t)0x0000FF00)
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#define WRP2_Mask ((uint32_t)0x00FF0000)
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#define WRP3_Mask ((uint32_t)0xFF000000)
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#define OB_USER_BFB2 ((uint16_t)0x0008)
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/* FLASH Keys */
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#define RDP_Key ((uint16_t)0x00A5)
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#define FLASH_KEY1 ((uint32_t)0x45670123)
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#define FLASH_KEY2 ((uint32_t)0xCDEF89AB)
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/* FLASH BANK address */
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#define FLASH_BANK1_END_ADDRESS ((uint32_t)0x807FFFF)
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/* Delay definition */
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#define EraseTimeout ((uint32_t)0x000B0000)
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#define ProgramTimeout ((uint32_t)0x00002000)
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/**
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* @}
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*/
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/** @defgroup FLASH_Private_Macros
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* @{
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*/
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/**
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* @}
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*/
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/** @defgroup FLASH_Private_Variables
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* @{
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*/
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/**
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* @}
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*/
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/** @defgroup FLASH_Private_FunctionPrototypes
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* @{
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*/
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/**
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* @}
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*/
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/** @defgroup FLASH_Private_Functions
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* @{
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*/
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/**
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@code
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This driver provides functions to configure and program the Flash memory of all STM32F10x devices,
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including the latest STM32F10x_XL density devices.
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STM32F10x_XL devices feature up to 1 Mbyte with dual bank architecture for read-while-write (RWW) capability:
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- bank1: fixed size of 512 Kbytes (256 pages of 2Kbytes each)
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- bank2: up to 512 Kbytes (up to 256 pages of 2Kbytes each)
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While other STM32F10x devices features only one bank with memory up to 512 Kbytes.
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In version V3.3.0, some functions were updated and new ones were added to support
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STM32F10x_XL devices. Thus some functions manages all devices, while other are
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dedicated for XL devices only.
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The table below presents the list of available functions depending on the used STM32F10x devices.
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***************************************************
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* Legacy functions used for all STM32F10x devices *
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***************************************************
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+----------------------------------------------------------------------------------------------------------------------------------+
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| Functions prototypes |STM32F10x_XL|Other STM32F10x| Comments |
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| | devices | devices | |
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|----------------------------------------------------------------------------------------------------------------------------------|
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|FLASH_SetLatency | Yes | Yes | No change |
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|----------------------------------------------------------------------------------------------------------------------------------|
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|FLASH_HalfCycleAccessCmd | Yes | Yes | No change |
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|----------------------------------------------------------------------------------------------------------------------------------|
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|FLASH_PrefetchBufferCmd | Yes | Yes | No change |
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|----------------------------------------------------------------------------------------------------------------------------------|
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|FLASH_Unlock | Yes | Yes | - For STM32F10X_XL devices: unlock Bank1 and Bank2. |
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| | | | - For other devices: unlock Bank1 and it is equivalent |
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| | | | to FLASH_UnlockBank1 function. |
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|----------------------------------------------------------------------------------------------------------------------------------|
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|FLASH_Lock | Yes | Yes | - For STM32F10X_XL devices: lock Bank1 and Bank2. |
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| | | | - For other devices: lock Bank1 and it is equivalent |
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| | | | to FLASH_LockBank1 function. |
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|----------------------------------------------------------------------------------------------------------------------------------|
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|FLASH_ErasePage | Yes | Yes | - For STM32F10x_XL devices: erase a page in Bank1 and Bank2 |
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| | | | - For other devices: erase a page in Bank1 |
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|----------------------------------------------------------------------------------------------------------------------------------|
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|FLASH_EraseAllPages | Yes | Yes | - For STM32F10x_XL devices: erase all pages in Bank1 and Bank2 |
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| | | | - For other devices: erase all pages in Bank1 |
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|----------------------------------------------------------------------------------------------------------------------------------|
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|FLASH_EraseOptionBytes | Yes | Yes | No change |
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|----------------------------------------------------------------------------------------------------------------------------------|
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|FLASH_ProgramWord | Yes | Yes | Updated to program up to 1MByte (depending on the used device) |
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|----------------------------------------------------------------------------------------------------------------------------------|
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|FLASH_ProgramHalfWord | Yes | Yes | Updated to program up to 1MByte (depending on the used device) |
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|----------------------------------------------------------------------------------------------------------------------------------|
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|FLASH_ProgramOptionByteData | Yes | Yes | No change |
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|----------------------------------------------------------------------------------------------------------------------------------|
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|FLASH_EnableWriteProtection | Yes | Yes | No change |
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|----------------------------------------------------------------------------------------------------------------------------------|
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|FLASH_ReadOutProtection | Yes | Yes | No change |
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|----------------------------------------------------------------------------------------------------------------------------------|
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|FLASH_UserOptionByteConfig | Yes | Yes | No change |
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|----------------------------------------------------------------------------------------------------------------------------------|
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|FLASH_GetUserOptionByte | Yes | Yes | No change |
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|----------------------------------------------------------------------------------------------------------------------------------|
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|FLASH_GetWriteProtectionOptionByte | Yes | Yes | No change |
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|----------------------------------------------------------------------------------------------------------------------------------|
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|FLASH_GetReadOutProtectionStatus | Yes | Yes | No change |
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|----------------------------------------------------------------------------------------------------------------------------------|
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|FLASH_GetPrefetchBufferStatus | Yes | Yes | No change |
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|----------------------------------------------------------------------------------------------------------------------------------|
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|FLASH_ITConfig | Yes | Yes | - For STM32F10x_XL devices: enable Bank1 and Bank2's interrupts|
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| | | | - For other devices: enable Bank1's interrupts |
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|----------------------------------------------------------------------------------------------------------------------------------|
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|FLASH_GetFlagStatus | Yes | Yes | - For STM32F10x_XL devices: return Bank1 and Bank2's flag status|
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| | | | - For other devices: return Bank1's flag status |
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|----------------------------------------------------------------------------------------------------------------------------------|
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|FLASH_ClearFlag | Yes | Yes | - For STM32F10x_XL devices: clear Bank1 and Bank2's flag |
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| | | | - For other devices: clear Bank1's flag |
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|----------------------------------------------------------------------------------------------------------------------------------|
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|FLASH_GetStatus | Yes | Yes | - Return the status of Bank1 (for all devices) |
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| | | | equivalent to FLASH_GetBank1Status function |
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|----------------------------------------------------------------------------------------------------------------------------------|
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|FLASH_WaitForLastOperation | Yes | Yes | - Wait for Bank1 last operation (for all devices) |
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| | | | equivalent to: FLASH_WaitForLastBank1Operation function |
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+----------------------------------------------------------------------------------------------------------------------------------+
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************************************************************************************************************************
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* New functions used for all STM32F10x devices to manage Bank1: *
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* - These functions are mainly useful for STM32F10x_XL density devices, to have separate control for Bank1 and bank2 *
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* - For other devices, these functions are optional (covered by functions listed above) *
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************************************************************************************************************************
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+----------------------------------------------------------------------------------------------------------------------------------+
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| Functions prototypes |STM32F10x_XL|Other STM32F10x| Comments |
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| | devices | devices | |
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|----------------------------------------------------------------------------------------------------------------------------------|
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| FLASH_UnlockBank1 | Yes | Yes | - Unlock Bank1 |
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|----------------------------------------------------------------------------------------------------------------------------------|
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|FLASH_LockBank1 | Yes | Yes | - Lock Bank1 |
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|----------------------------------------------------------------------------------------------------------------------------------|
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| FLASH_EraseAllBank1Pages | Yes | Yes | - Erase all pages in Bank1 |
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|----------------------------------------------------------------------------------------------------------------------------------|
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| FLASH_GetBank1Status | Yes | Yes | - Return the status of Bank1 |
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|----------------------------------------------------------------------------------------------------------------------------------|
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| FLASH_WaitForLastBank1Operation | Yes | Yes | - Wait for Bank1 last operation |
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+----------------------------------------------------------------------------------------------------------------------------------+
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*****************************************************************************
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* New Functions used only with STM32F10x_XL density devices to manage Bank2 *
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*****************************************************************************
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+----------------------------------------------------------------------------------------------------------------------------------+
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| Functions prototypes |STM32F10x_XL|Other STM32F10x| Comments |
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| | devices | devices | |
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|----------------------------------------------------------------------------------------------------------------------------------|
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| FLASH_UnlockBank2 | Yes | No | - Unlock Bank2 |
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|----------------------------------------------------------------------------------------------------------------------------------|
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|FLASH_LockBank2 | Yes | No | - Lock Bank2 |
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|----------------------------------------------------------------------------------------------------------------------------------|
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| FLASH_EraseAllBank2Pages | Yes | No | - Erase all pages in Bank2 |
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|----------------------------------------------------------------------------------------------------------------------------------|
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| FLASH_GetBank2Status | Yes | No | - Return the status of Bank2 |
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|----------------------------------------------------------------------------------------------------------------------------------|
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| FLASH_WaitForLastBank2Operation | Yes | No | - Wait for Bank2 last operation |
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|----------------------------------------------------------------------------------------------------------------------------------|
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| FLASH_BootConfig | Yes | No | - Configure to boot from Bank1 or Bank2 |
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+----------------------------------------------------------------------------------------------------------------------------------+
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@endcode
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*/
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/**
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* @brief Sets the code latency value.
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* @note This function can be used for all STM32F10x devices.
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* @param FLASH_Latency: specifies the FLASH Latency value.
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* This parameter can be one of the following values:
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* @arg FLASH_Latency_0: FLASH Zero Latency cycle
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* @arg FLASH_Latency_1: FLASH One Latency cycle
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* @arg FLASH_Latency_2: FLASH Two Latency cycles
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* @retval None
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*/
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void FLASH_SetLatency(uint32_t FLASH_Latency)
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{
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uint32_t tmpreg = 0;
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/* Check the parameters */
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assert_param(IS_FLASH_LATENCY(FLASH_Latency));
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/* Read the ACR register */
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tmpreg = FLASH->ACR;
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/* Sets the Latency value */
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tmpreg &= ACR_LATENCY_Mask;
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tmpreg |= FLASH_Latency;
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/* Write the ACR register */
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FLASH->ACR = tmpreg;
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}
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/**
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* @brief Enables or disables the Half cycle flash access.
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* @note This function can be used for all STM32F10x devices.
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* @param FLASH_HalfCycleAccess: specifies the FLASH Half cycle Access mode.
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* This parameter can be one of the following values:
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* @arg FLASH_HalfCycleAccess_Enable: FLASH Half Cycle Enable
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* @arg FLASH_HalfCycleAccess_Disable: FLASH Half Cycle Disable
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* @retval None
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*/
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void FLASH_HalfCycleAccessCmd(uint32_t FLASH_HalfCycleAccess)
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{
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/* Check the parameters */
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assert_param(IS_FLASH_HALFCYCLEACCESS_STATE(FLASH_HalfCycleAccess));
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/* Enable or disable the Half cycle access */
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FLASH->ACR &= ACR_HLFCYA_Mask;
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FLASH->ACR |= FLASH_HalfCycleAccess;
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}
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/**
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* @brief Enables or disables the Prefetch Buffer.
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* @note This function can be used for all STM32F10x devices.
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* @param FLASH_PrefetchBuffer: specifies the Prefetch buffer status.
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* This parameter can be one of the following values:
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* @arg FLASH_PrefetchBuffer_Enable: FLASH Prefetch Buffer Enable
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* @arg FLASH_PrefetchBuffer_Disable: FLASH Prefetch Buffer Disable
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* @retval None
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*/
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void FLASH_PrefetchBufferCmd(uint32_t FLASH_PrefetchBuffer)
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{
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/* Check the parameters */
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assert_param(IS_FLASH_PREFETCHBUFFER_STATE(FLASH_PrefetchBuffer));
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/* Enable or disable the Prefetch Buffer */
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FLASH->ACR &= ACR_PRFTBE_Mask;
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FLASH->ACR |= FLASH_PrefetchBuffer;
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}
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/**
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* @brief Unlocks the FLASH Program Erase Controller.
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* @note This function can be used for all STM32F10x devices.
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* - For STM32F10X_XL devices this function unlocks Bank1 and Bank2.
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* - For all other devices it unlocks Bank1 and it is equivalent
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* to FLASH_UnlockBank1 function..
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* @param None
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* @retval None
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*/
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void FLASH_Unlock(void)
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{
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/* Authorize the FPEC of Bank1 Access */
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FLASH->KEYR = FLASH_KEY1;
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FLASH->KEYR = FLASH_KEY2;
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#ifdef STM32F10X_XL
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/* Authorize the FPEC of Bank2 Access */
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FLASH->KEYR2 = FLASH_KEY1;
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FLASH->KEYR2 = FLASH_KEY2;
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#endif /* STM32F10X_XL */
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}
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/**
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* @brief Unlocks the FLASH Bank1 Program Erase Controller.
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* @note This function can be used for all STM32F10x devices.
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* - For STM32F10X_XL devices this function unlocks Bank1.
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* - For all other devices it unlocks Bank1 and it is
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* equivalent to FLASH_Unlock function.
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* @param None
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* @retval None
|
||
*/
|
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void FLASH_UnlockBank1(void)
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{
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/* Authorize the FPEC of Bank1 Access */
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FLASH->KEYR = FLASH_KEY1;
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FLASH->KEYR = FLASH_KEY2;
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}
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#ifdef STM32F10X_XL
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/**
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* @brief Unlocks the FLASH Bank2 Program Erase Controller.
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* @note This function can be used only for STM32F10X_XL density devices.
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* @param None
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* @retval None
|
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*/
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void FLASH_UnlockBank2(void)
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{
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/* Authorize the FPEC of Bank2 Access */
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FLASH->KEYR2 = FLASH_KEY1;
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FLASH->KEYR2 = FLASH_KEY2;
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|
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}
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#endif /* STM32F10X_XL */
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|
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/**
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* @brief Locks the FLASH Program Erase Controller.
|
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* @note This function can be used for all STM32F10x devices.
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* - For STM32F10X_XL devices this function Locks Bank1 and Bank2.
|
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* - For all other devices it Locks Bank1 and it is equivalent
|
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* to FLASH_LockBank1 function.
|
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* @param None
|
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* @retval None
|
||
*/
|
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void FLASH_Lock(void)
|
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{
|
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/* Set the Lock Bit to lock the FPEC and the CR of Bank1 */
|
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FLASH->CR |= CR_LOCK_Set;
|
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|
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#ifdef STM32F10X_XL
|
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/* Set the Lock Bit to lock the FPEC and the CR of Bank2 */
|
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FLASH->CR2 |= CR_LOCK_Set;
|
||
#endif /* STM32F10X_XL */
|
||
}
|
||
|
||
/**
|
||
* @brief Locks the FLASH Bank1 Program Erase Controller.
|
||
* @note this function can be used for all STM32F10x devices.
|
||
* - For STM32F10X_XL devices this function Locks Bank1.
|
||
* - For all other devices it Locks Bank1 and it is equivalent
|
||
* to FLASH_Lock function.
|
||
* @param None
|
||
* @retval None
|
||
*/
|
||
void FLASH_LockBank1(void)
|
||
{
|
||
/* Set the Lock Bit to lock the FPEC and the CR of Bank1 */
|
||
FLASH->CR |= CR_LOCK_Set;
|
||
}
|
||
|
||
#ifdef STM32F10X_XL
|
||
/**
|
||
* @brief Locks the FLASH Bank2 Program Erase Controller.
|
||
* @note This function can be used only for STM32F10X_XL density devices.
|
||
* @param None
|
||
* @retval None
|
||
*/
|
||
void FLASH_LockBank2(void)
|
||
{
|
||
/* Set the Lock Bit to lock the FPEC and the CR of Bank2 */
|
||
FLASH->CR2 |= CR_LOCK_Set;
|
||
}
|
||
#endif /* STM32F10X_XL */
|
||
|
||
/**
|
||
* @brief Erases a specified FLASH page.
|
||
* @note This function can be used for all STM32F10x devices.
|
||
* @param Page_Address: The page address to be erased.
|
||
* @retval FLASH Status: The returned value can be: FLASH_BUSY, FLASH_ERROR_PG,
|
||
* FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
|
||
*/
|
||
FLASH_Status FLASH_ErasePage(uint32_t Page_Address)
|
||
{
|
||
FLASH_Status status = FLASH_COMPLETE;
|
||
/* Check the parameters */
|
||
assert_param(IS_FLASH_ADDRESS(Page_Address));
|
||
|
||
#ifdef STM32F10X_XL
|
||
if(Page_Address < FLASH_BANK1_END_ADDRESS)
|
||
{
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastBank1Operation(EraseTimeout);
|
||
if(status == FLASH_COMPLETE)
|
||
{
|
||
/* if the previous operation is completed, proceed to erase the page */
|
||
FLASH->CR|= CR_PER_Set;
|
||
FLASH->AR = Page_Address;
|
||
FLASH->CR|= CR_STRT_Set;
|
||
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastBank1Operation(EraseTimeout);
|
||
|
||
/* Disable the PER Bit */
|
||
FLASH->CR &= CR_PER_Reset;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastBank2Operation(EraseTimeout);
|
||
if(status == FLASH_COMPLETE)
|
||
{
|
||
/* if the previous operation is completed, proceed to erase the page */
|
||
FLASH->CR2|= CR_PER_Set;
|
||
FLASH->AR2 = Page_Address;
|
||
FLASH->CR2|= CR_STRT_Set;
|
||
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastBank2Operation(EraseTimeout);
|
||
|
||
/* Disable the PER Bit */
|
||
FLASH->CR2 &= CR_PER_Reset;
|
||
}
|
||
}
|
||
#else
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastOperation(EraseTimeout);
|
||
|
||
if(status == FLASH_COMPLETE)
|
||
{
|
||
/* if the previous operation is completed, proceed to erase the page */
|
||
FLASH->CR|= CR_PER_Set;
|
||
FLASH->AR = Page_Address;
|
||
FLASH->CR|= CR_STRT_Set;
|
||
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastOperation(EraseTimeout);
|
||
|
||
/* Disable the PER Bit */
|
||
FLASH->CR &= CR_PER_Reset;
|
||
}
|
||
#endif /* STM32F10X_XL */
|
||
|
||
/* Return the Erase Status */
|
||
return status;
|
||
}
|
||
|
||
/**
|
||
* @brief Erases all FLASH pages.
|
||
* @note This function can be used for all STM32F10x devices.
|
||
* @param None
|
||
* @retval FLASH Status: The returned value can be: FLASH_ERROR_PG,
|
||
* FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
|
||
*/
|
||
FLASH_Status FLASH_EraseAllPages(void)
|
||
{
|
||
FLASH_Status status = FLASH_COMPLETE;
|
||
|
||
#ifdef STM32F10X_XL
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastBank1Operation(EraseTimeout);
|
||
|
||
if(status == FLASH_COMPLETE)
|
||
{
|
||
/* if the previous operation is completed, proceed to erase all pages */
|
||
FLASH->CR |= CR_MER_Set;
|
||
FLASH->CR |= CR_STRT_Set;
|
||
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastBank1Operation(EraseTimeout);
|
||
|
||
/* Disable the MER Bit */
|
||
FLASH->CR &= CR_MER_Reset;
|
||
}
|
||
if(status == FLASH_COMPLETE)
|
||
{
|
||
/* if the previous operation is completed, proceed to erase all pages */
|
||
FLASH->CR2 |= CR_MER_Set;
|
||
FLASH->CR2 |= CR_STRT_Set;
|
||
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastBank2Operation(EraseTimeout);
|
||
|
||
/* Disable the MER Bit */
|
||
FLASH->CR2 &= CR_MER_Reset;
|
||
}
|
||
#else
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastOperation(EraseTimeout);
|
||
if(status == FLASH_COMPLETE)
|
||
{
|
||
/* if the previous operation is completed, proceed to erase all pages */
|
||
FLASH->CR |= CR_MER_Set;
|
||
FLASH->CR |= CR_STRT_Set;
|
||
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastOperation(EraseTimeout);
|
||
|
||
/* Disable the MER Bit */
|
||
FLASH->CR &= CR_MER_Reset;
|
||
}
|
||
#endif /* STM32F10X_XL */
|
||
|
||
/* Return the Erase Status */
|
||
return status;
|
||
}
|
||
|
||
/**
|
||
* @brief Erases all Bank1 FLASH pages.
|
||
* @note This function can be used for all STM32F10x devices.
|
||
* - For STM32F10X_XL devices this function erases all Bank1 pages.
|
||
* - For all other devices it erases all Bank1 pages and it is equivalent
|
||
* to FLASH_EraseAllPages function.
|
||
* @param None
|
||
* @retval FLASH Status: The returned value can be: FLASH_ERROR_PG,
|
||
* FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
|
||
*/
|
||
FLASH_Status FLASH_EraseAllBank1Pages(void)
|
||
{
|
||
FLASH_Status status = FLASH_COMPLETE;
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastBank1Operation(EraseTimeout);
|
||
|
||
if(status == FLASH_COMPLETE)
|
||
{
|
||
/* if the previous operation is completed, proceed to erase all pages */
|
||
FLASH->CR |= CR_MER_Set;
|
||
FLASH->CR |= CR_STRT_Set;
|
||
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastBank1Operation(EraseTimeout);
|
||
|
||
/* Disable the MER Bit */
|
||
FLASH->CR &= CR_MER_Reset;
|
||
}
|
||
/* Return the Erase Status */
|
||
return status;
|
||
}
|
||
|
||
#ifdef STM32F10X_XL
|
||
/**
|
||
* @brief Erases all Bank2 FLASH pages.
|
||
* @note This function can be used only for STM32F10x_XL density devices.
|
||
* @param None
|
||
* @retval FLASH Status: The returned value can be: FLASH_ERROR_PG,
|
||
* FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
|
||
*/
|
||
FLASH_Status FLASH_EraseAllBank2Pages(void)
|
||
{
|
||
FLASH_Status status = FLASH_COMPLETE;
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastBank2Operation(EraseTimeout);
|
||
|
||
if(status == FLASH_COMPLETE)
|
||
{
|
||
/* if the previous operation is completed, proceed to erase all pages */
|
||
FLASH->CR2 |= CR_MER_Set;
|
||
FLASH->CR2 |= CR_STRT_Set;
|
||
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastBank2Operation(EraseTimeout);
|
||
|
||
/* Disable the MER Bit */
|
||
FLASH->CR2 &= CR_MER_Reset;
|
||
}
|
||
/* Return the Erase Status */
|
||
return status;
|
||
}
|
||
#endif /* STM32F10X_XL */
|
||
|
||
/**
|
||
* @brief Erases the FLASH option bytes.
|
||
* @note This functions erases all option bytes except the Read protection (RDP).
|
||
* @note This function can be used for all STM32F10x devices.
|
||
* @param None
|
||
* @retval FLASH Status: The returned value can be: FLASH_ERROR_PG,
|
||
* FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
|
||
*/
|
||
FLASH_Status FLASH_EraseOptionBytes(void)
|
||
{
|
||
uint16_t rdptmp = RDP_Key;
|
||
|
||
FLASH_Status status = FLASH_COMPLETE;
|
||
|
||
/* Get the actual read protection Option Byte value */
|
||
if(FLASH_GetReadOutProtectionStatus() != RESET)
|
||
{
|
||
rdptmp = 0x00;
|
||
}
|
||
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastOperation(EraseTimeout);
|
||
if(status == FLASH_COMPLETE)
|
||
{
|
||
/* Authorize the small information block programming */
|
||
FLASH->OPTKEYR = FLASH_KEY1;
|
||
FLASH->OPTKEYR = FLASH_KEY2;
|
||
|
||
/* if the previous operation is completed, proceed to erase the option bytes */
|
||
FLASH->CR |= CR_OPTER_Set;
|
||
FLASH->CR |= CR_STRT_Set;
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastOperation(EraseTimeout);
|
||
|
||
if(status == FLASH_COMPLETE)
|
||
{
|
||
/* if the erase operation is completed, disable the OPTER Bit */
|
||
FLASH->CR &= CR_OPTER_Reset;
|
||
|
||
/* Enable the Option Bytes Programming operation */
|
||
FLASH->CR |= CR_OPTPG_Set;
|
||
/* Restore the last read protection Option Byte value */
|
||
OB->RDP = (uint16_t)rdptmp;
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastOperation(ProgramTimeout);
|
||
|
||
if(status != FLASH_TIMEOUT)
|
||
{
|
||
/* if the program operation is completed, disable the OPTPG Bit */
|
||
FLASH->CR &= CR_OPTPG_Reset;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if (status != FLASH_TIMEOUT)
|
||
{
|
||
/* Disable the OPTPG Bit */
|
||
FLASH->CR &= CR_OPTPG_Reset;
|
||
}
|
||
}
|
||
}
|
||
/* Return the erase status */
|
||
return status;
|
||
}
|
||
|
||
/**
|
||
* @brief Programs a word at a specified address.
|
||
* @note This function can be used for all STM32F10x devices.
|
||
* @param Address: specifies the address to be programmed.
|
||
* @param Data: specifies the data to be programmed.
|
||
* @retval FLASH Status: The returned value can be: FLASH_ERROR_PG,
|
||
* FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
|
||
*/
|
||
FLASH_Status FLASH_ProgramWord(uint32_t Address, uint32_t Data)
|
||
{
|
||
FLASH_Status status = FLASH_COMPLETE;
|
||
__IO uint32_t tmp = 0;
|
||
|
||
/* Check the parameters */
|
||
assert_param(IS_FLASH_ADDRESS(Address));
|
||
|
||
#ifdef STM32F10X_XL
|
||
if(Address < FLASH_BANK1_END_ADDRESS - 2)
|
||
{
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastBank1Operation(ProgramTimeout);
|
||
if(status == FLASH_COMPLETE)
|
||
{
|
||
/* if the previous operation is completed, proceed to program the new first
|
||
half word */
|
||
FLASH->CR |= CR_PG_Set;
|
||
|
||
*(__IO uint16_t*)Address = (uint16_t)Data;
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastOperation(ProgramTimeout);
|
||
|
||
if(status == FLASH_COMPLETE)
|
||
{
|
||
/* if the previous operation is completed, proceed to program the new second
|
||
half word */
|
||
tmp = Address + 2;
|
||
|
||
*(__IO uint16_t*) tmp = Data >> 16;
|
||
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastOperation(ProgramTimeout);
|
||
|
||
/* Disable the PG Bit */
|
||
FLASH->CR &= CR_PG_Reset;
|
||
}
|
||
else
|
||
{
|
||
/* Disable the PG Bit */
|
||
FLASH->CR &= CR_PG_Reset;
|
||
}
|
||
}
|
||
}
|
||
else if(Address == (FLASH_BANK1_END_ADDRESS - 1))
|
||
{
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastBank1Operation(ProgramTimeout);
|
||
|
||
if(status == FLASH_COMPLETE)
|
||
{
|
||
/* if the previous operation is completed, proceed to program the new first
|
||
half word */
|
||
FLASH->CR |= CR_PG_Set;
|
||
|
||
*(__IO uint16_t*)Address = (uint16_t)Data;
|
||
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastBank1Operation(ProgramTimeout);
|
||
|
||
/* Disable the PG Bit */
|
||
FLASH->CR &= CR_PG_Reset;
|
||
}
|
||
else
|
||
{
|
||
/* Disable the PG Bit */
|
||
FLASH->CR &= CR_PG_Reset;
|
||
}
|
||
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastBank2Operation(ProgramTimeout);
|
||
|
||
if(status == FLASH_COMPLETE)
|
||
{
|
||
/* if the previous operation is completed, proceed to program the new second
|
||
half word */
|
||
FLASH->CR2 |= CR_PG_Set;
|
||
tmp = Address + 2;
|
||
|
||
*(__IO uint16_t*) tmp = Data >> 16;
|
||
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastBank2Operation(ProgramTimeout);
|
||
|
||
/* Disable the PG Bit */
|
||
FLASH->CR2 &= CR_PG_Reset;
|
||
}
|
||
else
|
||
{
|
||
/* Disable the PG Bit */
|
||
FLASH->CR2 &= CR_PG_Reset;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastBank2Operation(ProgramTimeout);
|
||
|
||
if(status == FLASH_COMPLETE)
|
||
{
|
||
/* if the previous operation is completed, proceed to program the new first
|
||
half word */
|
||
FLASH->CR2 |= CR_PG_Set;
|
||
|
||
*(__IO uint16_t*)Address = (uint16_t)Data;
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastBank2Operation(ProgramTimeout);
|
||
|
||
if(status == FLASH_COMPLETE)
|
||
{
|
||
/* if the previous operation is completed, proceed to program the new second
|
||
half word */
|
||
tmp = Address + 2;
|
||
|
||
*(__IO uint16_t*) tmp = Data >> 16;
|
||
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastBank2Operation(ProgramTimeout);
|
||
|
||
/* Disable the PG Bit */
|
||
FLASH->CR2 &= CR_PG_Reset;
|
||
}
|
||
else
|
||
{
|
||
/* Disable the PG Bit */
|
||
FLASH->CR2 &= CR_PG_Reset;
|
||
}
|
||
}
|
||
}
|
||
#else
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastOperation(ProgramTimeout);
|
||
|
||
if(status == FLASH_COMPLETE)
|
||
{
|
||
/* if the previous operation is completed, proceed to program the new first
|
||
half word */
|
||
FLASH->CR |= CR_PG_Set;
|
||
|
||
*(__IO uint16_t*)Address = (uint16_t)Data;
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastOperation(ProgramTimeout);
|
||
|
||
if(status == FLASH_COMPLETE)
|
||
{
|
||
/* if the previous operation is completed, proceed to program the new second
|
||
half word */
|
||
tmp = Address + 2;
|
||
|
||
*(__IO uint16_t*) tmp = Data >> 16;
|
||
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastOperation(ProgramTimeout);
|
||
|
||
/* Disable the PG Bit */
|
||
FLASH->CR &= CR_PG_Reset;
|
||
}
|
||
else
|
||
{
|
||
/* Disable the PG Bit */
|
||
FLASH->CR &= CR_PG_Reset;
|
||
}
|
||
}
|
||
#endif /* STM32F10X_XL */
|
||
|
||
/* Return the Program Status */
|
||
return status;
|
||
}
|
||
|
||
/**
|
||
* @brief Programs a half word at a specified address.
|
||
* @note This function can be used for all STM32F10x devices.
|
||
* @param Address: specifies the address to be programmed.
|
||
* @param Data: specifies the data to be programmed.
|
||
* @retval FLASH Status: The returned value can be: FLASH_ERROR_PG,
|
||
* FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
|
||
*/
|
||
FLASH_Status FLASH_ProgramHalfWord(uint32_t Address, uint16_t Data)
|
||
{
|
||
FLASH_Status status = FLASH_COMPLETE;
|
||
/* Check the parameters */
|
||
assert_param(IS_FLASH_ADDRESS(Address));
|
||
|
||
#ifdef STM32F10X_XL
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastOperation(ProgramTimeout);
|
||
|
||
if(Address < FLASH_BANK1_END_ADDRESS)
|
||
{
|
||
if(status == FLASH_COMPLETE)
|
||
{
|
||
/* if the previous operation is completed, proceed to program the new data */
|
||
FLASH->CR |= CR_PG_Set;
|
||
|
||
*(__IO uint16_t*)Address = Data;
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastBank1Operation(ProgramTimeout);
|
||
|
||
/* Disable the PG Bit */
|
||
FLASH->CR &= CR_PG_Reset;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if(status == FLASH_COMPLETE)
|
||
{
|
||
/* if the previous operation is completed, proceed to program the new data */
|
||
FLASH->CR2 |= CR_PG_Set;
|
||
|
||
*(__IO uint16_t*)Address = Data;
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastBank2Operation(ProgramTimeout);
|
||
|
||
/* Disable the PG Bit */
|
||
FLASH->CR2 &= CR_PG_Reset;
|
||
}
|
||
}
|
||
#else
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastOperation(ProgramTimeout);
|
||
|
||
if(status == FLASH_COMPLETE)
|
||
{
|
||
/* if the previous operation is completed, proceed to program the new data */
|
||
FLASH->CR |= CR_PG_Set;
|
||
|
||
*(__IO uint16_t*)Address = Data;
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastOperation(ProgramTimeout);
|
||
|
||
/* Disable the PG Bit */
|
||
FLASH->CR &= CR_PG_Reset;
|
||
}
|
||
#endif /* STM32F10X_XL */
|
||
|
||
/* Return the Program Status */
|
||
return status;
|
||
}
|
||
|
||
/**
|
||
* @brief Programs a half word at a specified Option Byte Data address.
|
||
* @note This function can be used for all STM32F10x devices.
|
||
* @param Address: specifies the address to be programmed.
|
||
* This parameter can be 0x1FFFF804 or 0x1FFFF806.
|
||
* @param Data: specifies the data to be programmed.
|
||
* @retval FLASH Status: The returned value can be: FLASH_ERROR_PG,
|
||
* FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
|
||
*/
|
||
FLASH_Status FLASH_ProgramOptionByteData(uint32_t Address, uint8_t Data)
|
||
{
|
||
FLASH_Status status = FLASH_COMPLETE;
|
||
/* Check the parameters */
|
||
assert_param(IS_OB_DATA_ADDRESS(Address));
|
||
status = FLASH_WaitForLastOperation(ProgramTimeout);
|
||
|
||
if(status == FLASH_COMPLETE)
|
||
{
|
||
/* Authorize the small information block programming */
|
||
FLASH->OPTKEYR = FLASH_KEY1;
|
||
FLASH->OPTKEYR = FLASH_KEY2;
|
||
/* Enables the Option Bytes Programming operation */
|
||
FLASH->CR |= CR_OPTPG_Set;
|
||
*(__IO uint16_t*)Address = Data;
|
||
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastOperation(ProgramTimeout);
|
||
if(status != FLASH_TIMEOUT)
|
||
{
|
||
/* if the program operation is completed, disable the OPTPG Bit */
|
||
FLASH->CR &= CR_OPTPG_Reset;
|
||
}
|
||
}
|
||
/* Return the Option Byte Data Program Status */
|
||
return status;
|
||
}
|
||
|
||
/**
|
||
* @brief Write protects the desired pages
|
||
* @note This function can be used for all STM32F10x devices.
|
||
* @param FLASH_Pages: specifies the address of the pages to be write protected.
|
||
* This parameter can be:
|
||
* @arg For @b STM32_Low-density_devices: value between FLASH_WRProt_Pages0to3 and FLASH_WRProt_Pages28to31
|
||
* @arg For @b STM32_Medium-density_devices: value between FLASH_WRProt_Pages0to3
|
||
* and FLASH_WRProt_Pages124to127
|
||
* @arg For @b STM32_High-density_devices: value between FLASH_WRProt_Pages0to1 and
|
||
* FLASH_WRProt_Pages60to61 or FLASH_WRProt_Pages62to255
|
||
* @arg For @b STM32_Connectivity_line_devices: value between FLASH_WRProt_Pages0to1 and
|
||
* FLASH_WRProt_Pages60to61 or FLASH_WRProt_Pages62to127
|
||
* @arg For @b STM32_XL-density_devices: value between FLASH_WRProt_Pages0to1 and
|
||
* FLASH_WRProt_Pages60to61 or FLASH_WRProt_Pages62to511
|
||
* @arg FLASH_WRProt_AllPages
|
||
* @retval FLASH Status: The returned value can be: FLASH_ERROR_PG,
|
||
* FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
|
||
*/
|
||
FLASH_Status FLASH_EnableWriteProtection(uint32_t FLASH_Pages)
|
||
{
|
||
uint16_t WRP0_Data = 0xFFFF, WRP1_Data = 0xFFFF, WRP2_Data = 0xFFFF, WRP3_Data = 0xFFFF;
|
||
|
||
FLASH_Status status = FLASH_COMPLETE;
|
||
|
||
/* Check the parameters */
|
||
assert_param(IS_FLASH_WRPROT_PAGE(FLASH_Pages));
|
||
|
||
FLASH_Pages = (uint32_t)(~FLASH_Pages);
|
||
WRP0_Data = (uint16_t)(FLASH_Pages & WRP0_Mask);
|
||
WRP1_Data = (uint16_t)((FLASH_Pages & WRP1_Mask) >> 8);
|
||
WRP2_Data = (uint16_t)((FLASH_Pages & WRP2_Mask) >> 16);
|
||
WRP3_Data = (uint16_t)((FLASH_Pages & WRP3_Mask) >> 24);
|
||
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastOperation(ProgramTimeout);
|
||
|
||
if(status == FLASH_COMPLETE)
|
||
{
|
||
/* Authorizes the small information block programming */
|
||
FLASH->OPTKEYR = FLASH_KEY1;
|
||
FLASH->OPTKEYR = FLASH_KEY2;
|
||
FLASH->CR |= CR_OPTPG_Set;
|
||
if(WRP0_Data != 0xFF)
|
||
{
|
||
OB->WRP0 = WRP0_Data;
|
||
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastOperation(ProgramTimeout);
|
||
}
|
||
if((status == FLASH_COMPLETE) && (WRP1_Data != 0xFF))
|
||
{
|
||
OB->WRP1 = WRP1_Data;
|
||
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastOperation(ProgramTimeout);
|
||
}
|
||
if((status == FLASH_COMPLETE) && (WRP2_Data != 0xFF))
|
||
{
|
||
OB->WRP2 = WRP2_Data;
|
||
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastOperation(ProgramTimeout);
|
||
}
|
||
|
||
if((status == FLASH_COMPLETE)&& (WRP3_Data != 0xFF))
|
||
{
|
||
OB->WRP3 = WRP3_Data;
|
||
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastOperation(ProgramTimeout);
|
||
}
|
||
|
||
if(status != FLASH_TIMEOUT)
|
||
{
|
||
/* if the program operation is completed, disable the OPTPG Bit */
|
||
FLASH->CR &= CR_OPTPG_Reset;
|
||
}
|
||
}
|
||
/* Return the write protection operation Status */
|
||
return status;
|
||
}
|
||
|
||
/**
|
||
* @brief Enables or disables the read out protection.
|
||
* @note If the user has already programmed the other option bytes before calling
|
||
* this function, he must re-program them since this function erases all option bytes.
|
||
* @note This function can be used for all STM32F10x devices.
|
||
* @param Newstate: new state of the ReadOut Protection.
|
||
* This parameter can be: ENABLE or DISABLE.
|
||
* @retval FLASH Status: The returned value can be: FLASH_ERROR_PG,
|
||
* FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
|
||
*/
|
||
FLASH_Status FLASH_ReadOutProtection(FunctionalState NewState)
|
||
{
|
||
FLASH_Status status = FLASH_COMPLETE;
|
||
/* Check the parameters */
|
||
assert_param(IS_FUNCTIONAL_STATE(NewState));
|
||
status = FLASH_WaitForLastOperation(EraseTimeout);
|
||
if(status == FLASH_COMPLETE)
|
||
{
|
||
/* Authorizes the small information block programming */
|
||
FLASH->OPTKEYR = FLASH_KEY1;
|
||
FLASH->OPTKEYR = FLASH_KEY2;
|
||
FLASH->CR |= CR_OPTER_Set;
|
||
FLASH->CR |= CR_STRT_Set;
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastOperation(EraseTimeout);
|
||
if(status == FLASH_COMPLETE)
|
||
{
|
||
/* if the erase operation is completed, disable the OPTER Bit */
|
||
FLASH->CR &= CR_OPTER_Reset;
|
||
/* Enable the Option Bytes Programming operation */
|
||
FLASH->CR |= CR_OPTPG_Set;
|
||
if(NewState != DISABLE)
|
||
{
|
||
OB->RDP = 0x00;
|
||
}
|
||
else
|
||
{
|
||
OB->RDP = RDP_Key;
|
||
}
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastOperation(EraseTimeout);
|
||
|
||
if(status != FLASH_TIMEOUT)
|
||
{
|
||
/* if the program operation is completed, disable the OPTPG Bit */
|
||
FLASH->CR &= CR_OPTPG_Reset;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if(status != FLASH_TIMEOUT)
|
||
{
|
||
/* Disable the OPTER Bit */
|
||
FLASH->CR &= CR_OPTER_Reset;
|
||
}
|
||
}
|
||
}
|
||
/* Return the protection operation Status */
|
||
return status;
|
||
}
|
||
|
||
/**
|
||
* @brief Programs the FLASH User Option Byte: IWDG_SW / RST_STOP / RST_STDBY.
|
||
* @note This function can be used for all STM32F10x devices.
|
||
* @param OB_IWDG: Selects the IWDG mode
|
||
* This parameter can be one of the following values:
|
||
* @arg OB_IWDG_SW: Software IWDG selected
|
||
* @arg OB_IWDG_HW: Hardware IWDG selected
|
||
* @param OB_STOP: Reset event when entering STOP mode.
|
||
* This parameter can be one of the following values:
|
||
* @arg OB_STOP_NoRST: No reset generated when entering in STOP
|
||
* @arg OB_STOP_RST: Reset generated when entering in STOP
|
||
* @param OB_STDBY: Reset event when entering Standby mode.
|
||
* This parameter can be one of the following values:
|
||
* @arg OB_STDBY_NoRST: No reset generated when entering in STANDBY
|
||
* @arg OB_STDBY_RST: Reset generated when entering in STANDBY
|
||
* @retval FLASH Status: The returned value can be: FLASH_ERROR_PG,
|
||
* FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
|
||
*/
|
||
FLASH_Status FLASH_UserOptionByteConfig(uint16_t OB_IWDG, uint16_t OB_STOP, uint16_t OB_STDBY)
|
||
{
|
||
FLASH_Status status = FLASH_COMPLETE;
|
||
|
||
/* Check the parameters */
|
||
assert_param(IS_OB_IWDG_SOURCE(OB_IWDG));
|
||
assert_param(IS_OB_STOP_SOURCE(OB_STOP));
|
||
assert_param(IS_OB_STDBY_SOURCE(OB_STDBY));
|
||
|
||
/* Authorize the small information block programming */
|
||
FLASH->OPTKEYR = FLASH_KEY1;
|
||
FLASH->OPTKEYR = FLASH_KEY2;
|
||
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastOperation(ProgramTimeout);
|
||
|
||
if(status == FLASH_COMPLETE)
|
||
{
|
||
/* Enable the Option Bytes Programming operation */
|
||
FLASH->CR |= CR_OPTPG_Set;
|
||
|
||
OB->USER = OB_IWDG | (uint16_t)(OB_STOP | (uint16_t)(OB_STDBY | ((uint16_t)0xF8)));
|
||
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastOperation(ProgramTimeout);
|
||
if(status != FLASH_TIMEOUT)
|
||
{
|
||
/* if the program operation is completed, disable the OPTPG Bit */
|
||
FLASH->CR &= CR_OPTPG_Reset;
|
||
}
|
||
}
|
||
/* Return the Option Byte program Status */
|
||
return status;
|
||
}
|
||
|
||
#ifdef STM32F10X_XL
|
||
/**
|
||
* @brief Configures to boot from Bank1 or Bank2.
|
||
* @note This function can be used only for STM32F10x_XL density devices.
|
||
* @param FLASH_BOOT: select the FLASH Bank to boot from.
|
||
* This parameter can be one of the following values:
|
||
* @arg FLASH_BOOT_Bank1: At startup, if boot pins are set in boot from user Flash
|
||
* position and this parameter is selected the device will boot from Bank1(Default).
|
||
* @arg FLASH_BOOT_Bank2: At startup, if boot pins are set in boot from user Flash
|
||
* position and this parameter is selected the device will boot from Bank2 or Bank1,
|
||
* depending on the activation of the bank. The active banks are checked in
|
||
* the following order: Bank2, followed by Bank1.
|
||
* The active bank is recognized by the value programmed at the base address
|
||
* of the respective bank (corresponding to the initial stack pointer value
|
||
* in the interrupt vector table).
|
||
* For more information, please refer to AN2606 from www.st.com.
|
||
* @retval FLASH Status: The returned value can be: FLASH_ERROR_PG,
|
||
* FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
|
||
*/
|
||
FLASH_Status FLASH_BootConfig(uint16_t FLASH_BOOT)
|
||
{
|
||
FLASH_Status status = FLASH_COMPLETE;
|
||
assert_param(IS_FLASH_BOOT(FLASH_BOOT));
|
||
/* Authorize the small information block programming */
|
||
FLASH->OPTKEYR = FLASH_KEY1;
|
||
FLASH->OPTKEYR = FLASH_KEY2;
|
||
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastOperation(ProgramTimeout);
|
||
|
||
if(status == FLASH_COMPLETE)
|
||
{
|
||
/* Enable the Option Bytes Programming operation */
|
||
FLASH->CR |= CR_OPTPG_Set;
|
||
|
||
if(FLASH_BOOT == FLASH_BOOT_Bank1)
|
||
{
|
||
OB->USER |= OB_USER_BFB2;
|
||
}
|
||
else
|
||
{
|
||
OB->USER &= (uint16_t)(~(uint16_t)(OB_USER_BFB2));
|
||
}
|
||
/* Wait for last operation to be completed */
|
||
status = FLASH_WaitForLastOperation(ProgramTimeout);
|
||
if(status != FLASH_TIMEOUT)
|
||
{
|
||
/* if the program operation is completed, disable the OPTPG Bit */
|
||
FLASH->CR &= CR_OPTPG_Reset;
|
||
}
|
||
}
|
||
/* Return the Option Byte program Status */
|
||
return status;
|
||
}
|
||
#endif /* STM32F10X_XL */
|
||
|
||
/**
|
||
* @brief Returns the FLASH User Option Bytes values.
|
||
* @note This function can be used for all STM32F10x devices.
|
||
* @param None
|
||
* @retval The FLASH User Option Bytes values:IWDG_SW(Bit0), RST_STOP(Bit1)
|
||
* and RST_STDBY(Bit2).
|
||
*/
|
||
uint32_t FLASH_GetUserOptionByte(void)
|
||
{
|
||
/* Return the User Option Byte */
|
||
return (uint32_t)(FLASH->OBR >> 2);
|
||
}
|
||
|
||
/**
|
||
* @brief Returns the FLASH Write Protection Option Bytes Register value.
|
||
* @note This function can be used for all STM32F10x devices.
|
||
* @param None
|
||
* @retval The FLASH Write Protection Option Bytes Register value
|
||
*/
|
||
uint32_t FLASH_GetWriteProtectionOptionByte(void)
|
||
{
|
||
/* Return the Flash write protection Register value */
|
||
return (uint32_t)(FLASH->WRPR);
|
||
}
|
||
|
||
/**
|
||
* @brief Checks whether the FLASH Read Out Protection Status is set or not.
|
||
* @note This function can be used for all STM32F10x devices.
|
||
* @param None
|
||
* @retval FLASH ReadOut Protection Status(SET or RESET)
|
||
*/
|
||
FlagStatus FLASH_GetReadOutProtectionStatus(void)
|
||
{
|
||
FlagStatus readoutstatus = RESET;
|
||
if ((FLASH->OBR & RDPRT_Mask) != (uint32_t)RESET)
|
||
{
|
||
readoutstatus = SET;
|
||
}
|
||
else
|
||
{
|
||
readoutstatus = RESET;
|
||
}
|
||
return readoutstatus;
|
||
}
|
||
|
||
/**
|
||
* @brief Checks whether the FLASH Prefetch Buffer status is set or not.
|
||
* @note This function can be used for all STM32F10x devices.
|
||
* @param None
|
||
* @retval FLASH Prefetch Buffer Status (SET or RESET).
|
||
*/
|
||
FlagStatus FLASH_GetPrefetchBufferStatus(void)
|
||
{
|
||
FlagStatus bitstatus = RESET;
|
||
|
||
if ((FLASH->ACR & ACR_PRFTBS_Mask) != (uint32_t)RESET)
|
||
{
|
||
bitstatus = SET;
|
||
}
|
||
else
|
||
{
|
||
bitstatus = RESET;
|
||
}
|
||
/* Return the new state of FLASH Prefetch Buffer Status (SET or RESET) */
|
||
return bitstatus;
|
||
}
|
||
|
||
/**
|
||
* @brief Enables or disables the specified FLASH interrupts.
|
||
* @note This function can be used for all STM32F10x devices.
|
||
* - For STM32F10X_XL devices, enables or disables the specified FLASH interrupts
|
||
for Bank1 and Bank2.
|
||
* - For other devices it enables or disables the specified FLASH interrupts for Bank1.
|
||
* @param FLASH_IT: specifies the FLASH interrupt sources to be enabled or disabled.
|
||
* This parameter can be any combination of the following values:
|
||
* @arg FLASH_IT_ERROR: FLASH Error Interrupt
|
||
* @arg FLASH_IT_EOP: FLASH end of operation Interrupt
|
||
* @param NewState: new state of the specified Flash interrupts.
|
||
* This parameter can be: ENABLE or DISABLE.
|
||
* @retval None
|
||
*/
|
||
void FLASH_ITConfig(uint32_t FLASH_IT, FunctionalState NewState)
|
||
{
|
||
#ifdef STM32F10X_XL
|
||
/* Check the parameters */
|
||
assert_param(IS_FLASH_IT(FLASH_IT));
|
||
assert_param(IS_FUNCTIONAL_STATE(NewState));
|
||
|
||
if((FLASH_IT & 0x80000000) != 0x0)
|
||
{
|
||
if(NewState != DISABLE)
|
||
{
|
||
/* Enable the interrupt sources */
|
||
FLASH->CR2 |= (FLASH_IT & 0x7FFFFFFF);
|
||
}
|
||
else
|
||
{
|
||
/* Disable the interrupt sources */
|
||
FLASH->CR2 &= ~(uint32_t)(FLASH_IT & 0x7FFFFFFF);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if(NewState != DISABLE)
|
||
{
|
||
/* Enable the interrupt sources */
|
||
FLASH->CR |= FLASH_IT;
|
||
}
|
||
else
|
||
{
|
||
/* Disable the interrupt sources */
|
||
FLASH->CR &= ~(uint32_t)FLASH_IT;
|
||
}
|
||
}
|
||
#else
|
||
/* Check the parameters */
|
||
assert_param(IS_FLASH_IT(FLASH_IT));
|
||
assert_param(IS_FUNCTIONAL_STATE(NewState));
|
||
|
||
if(NewState != DISABLE)
|
||
{
|
||
/* Enable the interrupt sources */
|
||
FLASH->CR |= FLASH_IT;
|
||
}
|
||
else
|
||
{
|
||
/* Disable the interrupt sources */
|
||
FLASH->CR &= ~(uint32_t)FLASH_IT;
|
||
}
|
||
#endif /* STM32F10X_XL */
|
||
}
|
||
|
||
/**
|
||
* @brief Checks whether the specified FLASH flag is set or not.
|
||
* @note This function can be used for all STM32F10x devices.
|
||
* - For STM32F10X_XL devices, this function checks whether the specified
|
||
* Bank1 or Bank2 flag is set or not.
|
||
* - For other devices, it checks whether the specified Bank1 flag is
|
||
* set or not.
|
||
* @param FLASH_FLAG: specifies the FLASH flag to check.
|
||
* This parameter can be one of the following values:
|
||
* @arg FLASH_FLAG_BSY: FLASH Busy flag
|
||
* @arg FLASH_FLAG_PGERR: FLASH Program error flag
|
||
* @arg FLASH_FLAG_WRPRTERR: FLASH Write protected error flag
|
||
* @arg FLASH_FLAG_EOP: FLASH End of Operation flag
|
||
* @arg FLASH_FLAG_OPTERR: FLASH Option Byte error flag
|
||
* @retval The new state of FLASH_FLAG (SET or RESET).
|
||
*/
|
||
FlagStatus FLASH_GetFlagStatus(uint32_t FLASH_FLAG)
|
||
{
|
||
FlagStatus bitstatus = RESET;
|
||
|
||
#ifdef STM32F10X_XL
|
||
/* Check the parameters */
|
||
assert_param(IS_FLASH_GET_FLAG(FLASH_FLAG)) ;
|
||
if(FLASH_FLAG == FLASH_FLAG_OPTERR)
|
||
{
|
||
if((FLASH->OBR & FLASH_FLAG_OPTERR) != (uint32_t)RESET)
|
||
{
|
||
bitstatus = SET;
|
||
}
|
||
else
|
||
{
|
||
bitstatus = RESET;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if((FLASH_FLAG & 0x80000000) != 0x0)
|
||
{
|
||
if((FLASH->SR2 & FLASH_FLAG) != (uint32_t)RESET)
|
||
{
|
||
bitstatus = SET;
|
||
}
|
||
else
|
||
{
|
||
bitstatus = RESET;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if((FLASH->SR & FLASH_FLAG) != (uint32_t)RESET)
|
||
{
|
||
bitstatus = SET;
|
||
}
|
||
else
|
||
{
|
||
bitstatus = RESET;
|
||
}
|
||
}
|
||
}
|
||
#else
|
||
/* Check the parameters */
|
||
assert_param(IS_FLASH_GET_FLAG(FLASH_FLAG)) ;
|
||
if(FLASH_FLAG == FLASH_FLAG_OPTERR)
|
||
{
|
||
if((FLASH->OBR & FLASH_FLAG_OPTERR) != (uint32_t)RESET)
|
||
{
|
||
bitstatus = SET;
|
||
}
|
||
else
|
||
{
|
||
bitstatus = RESET;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if((FLASH->SR & FLASH_FLAG) != (uint32_t)RESET)
|
||
{
|
||
bitstatus = SET;
|
||
}
|
||
else
|
||
{
|
||
bitstatus = RESET;
|
||
}
|
||
}
|
||
#endif /* STM32F10X_XL */
|
||
|
||
/* Return the new state of FLASH_FLAG (SET or RESET) */
|
||
return bitstatus;
|
||
}
|
||
|
||
/**
|
||
* @brief Clears the FLASH's pending flags.
|
||
* @note This function can be used for all STM32F10x devices.
|
||
* - For STM32F10X_XL devices, this function clears Bank1 or Bank2<6B>s pending flags
|
||
* - For other devices, it clears Bank1<6B>s pending flags.
|
||
* @param FLASH_FLAG: specifies the FLASH flags to clear.
|
||
* This parameter can be any combination of the following values:
|
||
* @arg FLASH_FLAG_PGERR: FLASH Program error flag
|
||
* @arg FLASH_FLAG_WRPRTERR: FLASH Write protected error flag
|
||
* @arg FLASH_FLAG_EOP: FLASH End of Operation flag
|
||
* @retval None
|
||
*/
|
||
void FLASH_ClearFlag(uint32_t FLASH_FLAG)
|
||
{
|
||
#ifdef STM32F10X_XL
|
||
/* Check the parameters */
|
||
assert_param(IS_FLASH_CLEAR_FLAG(FLASH_FLAG)) ;
|
||
|
||
if((FLASH_FLAG & 0x80000000) != 0x0)
|
||
{
|
||
/* Clear the flags */
|
||
FLASH->SR2 = FLASH_FLAG;
|
||
}
|
||
else
|
||
{
|
||
/* Clear the flags */
|
||
FLASH->SR = FLASH_FLAG;
|
||
}
|
||
|
||
#else
|
||
/* Check the parameters */
|
||
assert_param(IS_FLASH_CLEAR_FLAG(FLASH_FLAG)) ;
|
||
|
||
/* Clear the flags */
|
||
FLASH->SR = FLASH_FLAG;
|
||
#endif /* STM32F10X_XL */
|
||
}
|
||
|
||
/**
|
||
* @brief Returns the FLASH Status.
|
||
* @note This function can be used for all STM32F10x devices, it is equivalent
|
||
* to FLASH_GetBank1Status function.
|
||
* @param None
|
||
* @retval FLASH Status: The returned value can be: FLASH_BUSY, FLASH_ERROR_PG,
|
||
* FLASH_ERROR_WRP or FLASH_COMPLETE
|
||
*/
|
||
FLASH_Status FLASH_GetStatus(void)
|
||
{
|
||
FLASH_Status flashstatus = FLASH_COMPLETE;
|
||
|
||
if((FLASH->SR & FLASH_FLAG_BSY) == FLASH_FLAG_BSY)
|
||
{
|
||
flashstatus = FLASH_BUSY;
|
||
}
|
||
else
|
||
{
|
||
if((FLASH->SR & FLASH_FLAG_PGERR) != 0)
|
||
{
|
||
flashstatus = FLASH_ERROR_PG;
|
||
}
|
||
else
|
||
{
|
||
if((FLASH->SR & FLASH_FLAG_WRPRTERR) != 0 )
|
||
{
|
||
flashstatus = FLASH_ERROR_WRP;
|
||
}
|
||
else
|
||
{
|
||
flashstatus = FLASH_COMPLETE;
|
||
}
|
||
}
|
||
}
|
||
/* Return the Flash Status */
|
||
return flashstatus;
|
||
}
|
||
|
||
/**
|
||
* @brief Returns the FLASH Bank1 Status.
|
||
* @note This function can be used for all STM32F10x devices, it is equivalent
|
||
* to FLASH_GetStatus function.
|
||
* @param None
|
||
* @retval FLASH Status: The returned value can be: FLASH_BUSY, FLASH_ERROR_PG,
|
||
* FLASH_ERROR_WRP or FLASH_COMPLETE
|
||
*/
|
||
FLASH_Status FLASH_GetBank1Status(void)
|
||
{
|
||
FLASH_Status flashstatus = FLASH_COMPLETE;
|
||
|
||
if((FLASH->SR & FLASH_FLAG_BANK1_BSY) == FLASH_FLAG_BSY)
|
||
{
|
||
flashstatus = FLASH_BUSY;
|
||
}
|
||
else
|
||
{
|
||
if((FLASH->SR & FLASH_FLAG_BANK1_PGERR) != 0)
|
||
{
|
||
flashstatus = FLASH_ERROR_PG;
|
||
}
|
||
else
|
||
{
|
||
if((FLASH->SR & FLASH_FLAG_BANK1_WRPRTERR) != 0 )
|
||
{
|
||
flashstatus = FLASH_ERROR_WRP;
|
||
}
|
||
else
|
||
{
|
||
flashstatus = FLASH_COMPLETE;
|
||
}
|
||
}
|
||
}
|
||
/* Return the Flash Status */
|
||
return flashstatus;
|
||
}
|
||
|
||
#ifdef STM32F10X_XL
|
||
/**
|
||
* @brief Returns the FLASH Bank2 Status.
|
||
* @note This function can be used for STM32F10x_XL density devices.
|
||
* @param None
|
||
* @retval FLASH Status: The returned value can be: FLASH_BUSY, FLASH_ERROR_PG,
|
||
* FLASH_ERROR_WRP or FLASH_COMPLETE
|
||
*/
|
||
FLASH_Status FLASH_GetBank2Status(void)
|
||
{
|
||
FLASH_Status flashstatus = FLASH_COMPLETE;
|
||
|
||
if((FLASH->SR2 & (FLASH_FLAG_BANK2_BSY & 0x7FFFFFFF)) == (FLASH_FLAG_BANK2_BSY & 0x7FFFFFFF))
|
||
{
|
||
flashstatus = FLASH_BUSY;
|
||
}
|
||
else
|
||
{
|
||
if((FLASH->SR2 & (FLASH_FLAG_BANK2_PGERR & 0x7FFFFFFF)) != 0)
|
||
{
|
||
flashstatus = FLASH_ERROR_PG;
|
||
}
|
||
else
|
||
{
|
||
if((FLASH->SR2 & (FLASH_FLAG_BANK2_WRPRTERR & 0x7FFFFFFF)) != 0 )
|
||
{
|
||
flashstatus = FLASH_ERROR_WRP;
|
||
}
|
||
else
|
||
{
|
||
flashstatus = FLASH_COMPLETE;
|
||
}
|
||
}
|
||
}
|
||
/* Return the Flash Status */
|
||
return flashstatus;
|
||
}
|
||
#endif /* STM32F10X_XL */
|
||
/**
|
||
* @brief Waits for a Flash operation to complete or a TIMEOUT to occur.
|
||
* @note This function can be used for all STM32F10x devices,
|
||
* it is equivalent to FLASH_WaitForLastBank1Operation.
|
||
* - For STM32F10X_XL devices this function waits for a Bank1 Flash operation
|
||
* to complete or a TIMEOUT to occur.
|
||
* - For all other devices it waits for a Flash operation to complete
|
||
* or a TIMEOUT to occur.
|
||
* @param Timeout: FLASH programming Timeout
|
||
* @retval FLASH Status: The returned value can be: FLASH_ERROR_PG,
|
||
* FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
|
||
*/
|
||
FLASH_Status FLASH_WaitForLastOperation(uint32_t Timeout)
|
||
{
|
||
FLASH_Status status = FLASH_COMPLETE;
|
||
|
||
/* Check for the Flash Status */
|
||
status = FLASH_GetBank1Status();
|
||
/* Wait for a Flash operation to complete or a TIMEOUT to occur */
|
||
while((status == FLASH_BUSY) && (Timeout != 0x00))
|
||
{
|
||
status = FLASH_GetBank1Status();
|
||
Timeout--;
|
||
}
|
||
if(Timeout == 0x00 )
|
||
{
|
||
status = FLASH_TIMEOUT;
|
||
}
|
||
/* Return the operation status */
|
||
return status;
|
||
}
|
||
|
||
/**
|
||
* @brief Waits for a Flash operation on Bank1 to complete or a TIMEOUT to occur.
|
||
* @note This function can be used for all STM32F10x devices,
|
||
* it is equivalent to FLASH_WaitForLastOperation.
|
||
* @param Timeout: FLASH programming Timeout
|
||
* @retval FLASH Status: The returned value can be: FLASH_ERROR_PG,
|
||
* FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
|
||
*/
|
||
FLASH_Status FLASH_WaitForLastBank1Operation(uint32_t Timeout)
|
||
{
|
||
FLASH_Status status = FLASH_COMPLETE;
|
||
|
||
/* Check for the Flash Status */
|
||
status = FLASH_GetBank1Status();
|
||
/* Wait for a Flash operation to complete or a TIMEOUT to occur */
|
||
while((status == FLASH_FLAG_BANK1_BSY) && (Timeout != 0x00))
|
||
{
|
||
status = FLASH_GetBank1Status();
|
||
Timeout--;
|
||
}
|
||
if(Timeout == 0x00 )
|
||
{
|
||
status = FLASH_TIMEOUT;
|
||
}
|
||
/* Return the operation status */
|
||
return status;
|
||
}
|
||
|
||
#ifdef STM32F10X_XL
|
||
/**
|
||
* @brief Waits for a Flash operation on Bank2 to complete or a TIMEOUT to occur.
|
||
* @note This function can be used only for STM32F10x_XL density devices.
|
||
* @param Timeout: FLASH programming Timeout
|
||
* @retval FLASH Status: The returned value can be: FLASH_ERROR_PG,
|
||
* FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
|
||
*/
|
||
FLASH_Status FLASH_WaitForLastBank2Operation(uint32_t Timeout)
|
||
{
|
||
FLASH_Status status = FLASH_COMPLETE;
|
||
|
||
/* Check for the Flash Status */
|
||
status = FLASH_GetBank2Status();
|
||
/* Wait for a Flash operation to complete or a TIMEOUT to occur */
|
||
while((status == (FLASH_FLAG_BANK2_BSY & 0x7FFFFFFF)) && (Timeout != 0x00))
|
||
{
|
||
status = FLASH_GetBank2Status();
|
||
Timeout--;
|
||
}
|
||
if(Timeout == 0x00 )
|
||
{
|
||
status = FLASH_TIMEOUT;
|
||
}
|
||
/* Return the operation status */
|
||
return status;
|
||
}
|
||
#endif /* STM32F10X_XL */
|
||
|
||
/**
|
||
* @}
|
||
*/
|
||
|
||
/**
|
||
* @}
|
||
*/
|
||
|
||
/**
|
||
* @}
|
||
*/
|
||
|
||
/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/
|