text: /**
    ******************************************************************************
    * @file    stm32f0xx_flash.h
    * @author  MCD Application Team
    * @version V1.0.0
    * @date    23-March-2012
    * @brief   This file contains all the functions prototypes for the FLASH 
    *          firmware library.
    ******************************************************************************
    * @attention
    *
    * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
    *
    * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
    * You may not use this file except in compliance with the License.
    * You may obtain a copy of the License at:
    *
    *        http://www.st.com/software_license_agreement_liberty_v2
    *
    * Unless required by applicable law or agreed to in writing, software 
    * distributed under the License is distributed on an "AS IS" BASIS, 
    * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    * See the License for the specific language governing permissions and
    * limitations under the License.
    *
    ******************************************************************************
    */
  
  /* Define to prevent recursive inclusion -------------------------------------*/
  #ifndef __STM32F0XX_FLASH_H
  #define __STM32F0XX_FLASH_H
  
  #ifdef __cplusplus
   extern "C" {
  #endif
  
  /* Includes ------------------------------------------------------------------*/
  #include "stm32f0xx.h"
  
  /** @addtogroup STM32F0xx_StdPeriph_Driver
    * @{
    */
  
  /** @addtogroup FLASH
    * @{
    */
  
  /* Exported types ------------------------------------------------------------*/
  
  /** 
    * @brief  FLASH Status
    */ 
  typedef enum
  {
    FLASH_BUSY = 1,
    FLASH_ERROR_WRP,
    FLASH_ERROR_PROGRAM,
    FLASH_COMPLETE,
    FLASH_TIMEOUT
  }FLASH_Status;
  
  /* Exported constants --------------------------------------------------------*/
    
  /** @defgroup FLASH_Exported_Constants
    * @{
    */ 
    
  /** @defgroup FLASH_Latency 
    * @{
    */ 
  #define FLASH_Latency_0                ((uint32_t)0x00000000)  /*!< FLASH Zero Latency cycle */
  #define FLASH_Latency_1                FLASH_ACR_LATENCY       /*!< FLASH One Latency cycle */
  
  #define IS_FLASH_LATENCY(LATENCY) (((LATENCY) == FLASH_Latency_0) || \
                                     ((LATENCY) == FLASH_Latency_1))
  /**
    * @}
    */ 
  
  /** @defgroup FLASH_Interrupts 
    * @{
    */
     
  #define FLASH_IT_EOP                   FLASH_CR_EOPIE  /*!< End of programming interrupt source */
  #define FLASH_IT_ERR                   FLASH_CR_ERRIE  /*!< Error interrupt source */
  #define IS_FLASH_IT(IT) ((((IT) & (uint32_t)0xFFFFEBFF) == 0x00000000) && (((IT) != 0x00000000)))
  /**
    * @}
    */ 
  
  /** @defgroup FLASH_Address 
    * @{
    */
    
  #define IS_FLASH_PROGRAM_ADDRESS(ADDRESS) (((ADDRESS) >= 0x08000000) && ((ADDRESS) <= 0x0800FFFF))
  
  /**
    * @}
    */
  
  /** @defgroup FLASH_OB_DATA_ADDRESS 
    * @{
    */  
  #define IS_OB_DATA_ADDRESS(ADDRESS) (((ADDRESS) == 0x1FFFF804) || ((ADDRESS) == 0x1FFFF806)) 
  
  /**
    * @}
    */
  
  /** @defgroup FLASH_Option_Bytes_Write_Protection 
    * @{
    */
    
  
  #define OB_WRP_Pages0to3               ((uint32_t)0x00000001) /* Write protection of page 0 to 3 */
  #define OB_WRP_Pages4to7               ((uint32_t)0x00000002) /* Write protection of page 4 to 7 */
  #define OB_WRP_Pages8to11              ((uint32_t)0x00000004) /* Write protection of page 8 to 11 */
  #define OB_WRP_Pages12to15             ((uint32_t)0x00000008) /* Write protection of page 12 to 15 */
  #define OB_WRP_Pages16to19             ((uint32_t)0x00000010) /* Write protection of page 16 to 19 */
  #define OB_WRP_Pages20to23             ((uint32_t)0x00000020) /* Write protection of page 20 to 23 */
  #define OB_WRP_Pages24to27             ((uint32_t)0x00000040) /* Write protection of page 24 to 27 */
  #define OB_WRP_Pages28to31             ((uint32_t)0x00000080) /* Write protection of page 28 to 31 */
  #define OB_WRP_Pages32to35             ((uint32_t)0x00000100) /* Write protection of page 32 to 35 */
  #define OB_WRP_Pages36to39             ((uint32_t)0x00000200) /* Write protection of page 36 to 39 */
  #define OB_WRP_Pages40to43             ((uint32_t)0x00000400) /* Write protection of page 40 to 43 */
  #define OB_WRP_Pages44to47             ((uint32_t)0x00000800) /* Write protection of page 44 to 47 */
  #define OB_WRP_Pages48to51             ((uint32_t)0x00001000) /* Write protection of page 48 to 51 */
  #define OB_WRP_Pages52to55             ((uint32_t)0x00002000) /* Write protection of page 52 to 55 */
  #define OB_WRP_Pages56to59             ((uint32_t)0x00004000) /* Write protection of page 56 to 59 */
  #define OB_WRP_Pages60to63             ((uint32_t)0x00008000) /* Write protection of page 60 to 63 */
  
  #define OB_WRP_AllPages                ((uint32_t)0x0000FFFF) /*!< Write protection of all Sectors */
  
  #define IS_OB_WRP(PAGE) (((PAGE) != 0x0000000))
  
  /**
    * @}
    */
  
  /** @defgroup FLASH_Option_Bytes_Read_Protection 
    * @{
    */ 
  
  /** 
    * @brief  FLASH_Read Protection Level  
    */ 
  #define OB_RDP_Level_0   ((uint8_t)0xAA)
  #define OB_RDP_Level_1   ((uint8_t)0xBB)
  /*#define OB_RDP_Level_2   ((uint8_t)0xCC)*/ /* Warning: When enabling read protection level 2 
                                                  it's no more possible to go back to level 1 or 0 */
  
  #define IS_OB_RDP(LEVEL) (((LEVEL) == OB_RDP_Level_0)||\
                            ((LEVEL) == OB_RDP_Level_1))/*||\
                            ((LEVEL) == OB_RDP_Level_2))*/
  /**
    * @}
    */ 
  
  /** @defgroup FLASH_Option_Bytes_IWatchdog 
    * @{
    */
  
  #define OB_IWDG_SW                     ((uint8_t)0x01)  /*!< Software IWDG selected */
  #define OB_IWDG_HW                     ((uint8_t)0x00)  /*!< Hardware IWDG selected */
  #define IS_OB_IWDG_SOURCE(SOURCE) (((SOURCE) == OB_IWDG_SW) || ((SOURCE) == OB_IWDG_HW))
  
  /**
    * @}
    */
  
  /** @defgroup FLASH_Option_Bytes_nRST_STOP 
    * @{
    */
  
  #define OB_STOP_NoRST                  ((uint8_t)0x02) /*!< No reset generated when entering in STOP */
  #define OB_STOP_RST                    ((uint8_t)0x00) /*!< Reset generated when entering in STOP */
  #define IS_OB_STOP_SOURCE(SOURCE) (((SOURCE) == OB_STOP_NoRST) || ((SOURCE) == OB_STOP_RST))
  
  /**
    * @}
    */
  
  /** @defgroup FLASH_Option_Bytes_nRST_STDBY 
    * @{
    */
  
  #define OB_STDBY_NoRST                 ((uint8_t)0x04) /*!< No reset generated when entering in STANDBY */
  #define OB_STDBY_RST                   ((uint8_t)0x00) /*!< Reset generated when entering in STANDBY */
  #define IS_OB_STDBY_SOURCE(SOURCE) (((SOURCE) == OB_STDBY_NoRST) || ((SOURCE) == OB_STDBY_RST))
  
  /**
    * @}
    */
  
  /** @defgroup FLASH_Option_Bytes_BOOT1
    * @{
    */
  
  #define OB_BOOT1_RESET                 ((uint8_t)0x00) /*!< BOOT1 Reset */
  #define OB_BOOT1_SET                   ((uint8_t)0x10) /*!< BOOT1 Set */
  #define IS_OB_BOOT1(BOOT1) (((BOOT1) == OB_BOOT1_RESET) || ((BOOT1) == OB_BOOT1_SET))
  
  /**
    * @}
    */
  
  /** @defgroup FLASH_Option_Bytes_VDDA_Analog_Monitoring
    * @{
    */
  
  #define OB_VDDA_ANALOG_ON              ((uint8_t)0x00) /*!< Analog monitoring on VDDA Power source ON */
  #define OB_VDDA_ANALOG_OFF             ((uint8_t)0x20) /*!< Analog monitoring on VDDA Power source OFF */
  
  #define IS_OB_VDDA_ANALOG(ANALOG) (((ANALOG) == OB_VDDA_ANALOG_ON) || ((ANALOG) == OB_VDDA_ANALOG_OFF))
  
  /**
    * @}
    */    
  
  /** @defgroup FLASH_Option_Bytes_SRAM_Parity_Enable 
    * @{
    */
  
  #define OB_SRAM_PARITY_SET              ((uint8_t)0x00) /*!< SRAM parity enable Set */
  #define OB_SRAM_PARITY_RESET            ((uint8_t)0x40) /*!< SRAM parity enable reset */
  
  #define IS_OB_SRAM_PARITY(PARITY) (((PARITY) == OB_SRAM_PARITY_SET) || ((PARITY) == OB_SRAM_PARITY_RESET))
  
  /**
    * @}
    */ 
    
  /** @defgroup FLASH_Flags 
    * @{
    */ 
  
  #define FLASH_FLAG_BSY                 FLASH_SR_BSY     /*!< FLASH Busy flag */
  #define FLASH_FLAG_PGERR               FLASH_SR_PGERR   /*!< FLASH Programming error flag */
  #define FLASH_FLAG_WRPERR              FLASH_SR_WRPERR  /*!< FLASH Write protected error flag */
  #define FLASH_FLAG_EOP                 FLASH_SR_EOP     /*!< FLASH End of Programming flag */
   
  #define IS_FLASH_CLEAR_FLAG(FLAG) ((((FLAG) & (uint32_t)0xFFFFFFC3) == 0x00000000) && ((FLAG) != 0x00000000))
  
  #define IS_FLASH_GET_FLAG(FLAG)  (((FLAG) == FLASH_FLAG_BSY) || ((FLAG) == FLASH_FLAG_PGERR) || \
                                    ((FLAG) == FLASH_FLAG_WRPERR) || ((FLAG) == FLASH_FLAG_EOP))
  /**
    * @}
    */ 
  
  /** @defgroup FLASH_Timeout_definition 
    * @{
    */ 
  #define FLASH_ER_PRG_TIMEOUT         ((uint32_t)0x000B0000)
  
  /**
    * @}
    */ 
  
  /**
    * @}
    */ 
  
  /* Exported macro ------------------------------------------------------------*/
  /* Exported functions ------------------------------------------------------- */
    
  /** 
    * @brief  FLASH memory functions that can be executed from FLASH.  
    */  
  /* FLASH Interface configuration functions ************************************/
  void FLASH_SetLatency(uint32_t FLASH_Latency);
  void FLASH_PrefetchBufferCmd(FunctionalState NewState);
  FlagStatus FLASH_GetPrefetchBufferStatus(void);
  
  /* FLASH Memory Programming functions *****************************************/
  void FLASH_Unlock(void);
  void FLASH_Lock(void);
  FLASH_Status FLASH_ErasePage(uint32_t Page_Address);
  FLASH_Status FLASH_EraseAllPages(void);
  FLASH_Status FLASH_ProgramWord(uint32_t Address, uint32_t Data);
  FLASH_Status FLASH_ProgramHalfWord(uint32_t Address, uint16_t Data);
  
  /* FLASH Option Bytes Programming functions *****************************************/
  void FLASH_OB_Unlock(void);
  void FLASH_OB_Lock(void);
  void FLASH_OB_Launch(void);
  FLASH_Status FLASH_OB_Erase(void);
  FLASH_Status FLASH_OB_EnableWRP(uint32_t OB_WRP);
  FLASH_Status FLASH_OB_RDPConfig(uint8_t OB_RDP);
  FLASH_Status FLASH_OB_UserConfig(uint8_t OB_IWDG, uint8_t OB_STOP, uint8_t OB_STDBY);
  FLASH_Status FLASH_OB_BOOTConfig(uint8_t OB_BOOT1);
  FLASH_Status FLASH_OB_VDDAConfig(uint8_t OB_VDDA_ANALOG);
  FLASH_Status FLASH_OB_SRAMParityConfig(uint8_t OB_SRAM_Parity);
  FLASH_Status FLASH_OB_WriteUser(uint8_t OB_USER);
  FLASH_Status FLASH_ProgramOptionByteData(uint32_t Address, uint8_t Data);
  uint8_t FLASH_OB_GetUser(void);
  uint32_t FLASH_OB_GetWRP(void);
  FlagStatus FLASH_OB_GetRDP(void);
  
  /* FLASH Interrupts and flags management functions **********************************/
  void FLASH_ITConfig(uint32_t FLASH_IT, FunctionalState NewState);
  FlagStatus FLASH_GetFlagStatus(uint32_t FLASH_FLAG);
  void FLASH_ClearFlag(uint32_t FLASH_FLAG);
  FLASH_Status FLASH_GetStatus(void);
  FLASH_Status FLASH_WaitForLastOperation(uint32_t Timeout);
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif /* __STM32F0XX_FLASH_H */
  
  /**
    * @}
    */
  
  /**
    * @}
    */ 
  
  /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  