mbed library sources modified for open wear
Dependents: openwear-lifelogger-example
Fork of mbed-src by
Diff: targets/cmsis/TARGET_STM/TARGET_NUCLEO_F103RB/stm32f10x_flash.c
- Revision:
- 52:a51c77007319
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- 70:c1fbde68b492
diff -r 7838415c99e7 -r a51c77007319 targets/cmsis/TARGET_STM/TARGET_NUCLEO_F103RB/stm32f10x_flash.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/cmsis/TARGET_STM/TARGET_NUCLEO_F103RB/stm32f10x_flash.c Mon Dec 02 11:30:05 2013 +0000 @@ -0,0 +1,1684 @@ +/** + ****************************************************************************** + * @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>© 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 | + |----------------------------------------------------------------------------------------------------------------------------------| + |FLASH_GetReadOutProtectionStatus | Yes | Yes | No change | + |----------------------------------------------------------------------------------------------------------------------------------| + |FLASH_GetPrefetchBufferStatus | Yes | Yes | No change | + |----------------------------------------------------------------------------------------------------------------------------------| + |FLASH_ITConfig | Yes | Yes | - For STM32F10x_XL devices: enable Bank1 and Bank2's interrupts| + | | | | - For other devices: enable Bank1's interrupts | + |----------------------------------------------------------------------------------------------------------------------------------| + |FLASH_GetFlagStatus | Yes | Yes | - For STM32F10x_XL devices: return Bank1 and Bank2's flag status| + | | | | - For other devices: return Bank1's flag status | + |----------------------------------------------------------------------------------------------------------------------------------| + |FLASH_ClearFlag | Yes | Yes | - For STM32F10x_XL devices: clear Bank1 and Bank2's flag | + | | | | - For other devices: clear Bank1's flag | + |----------------------------------------------------------------------------------------------------------------------------------| + |FLASH_GetStatus | Yes | Yes | - Return the status of Bank1 (for all devices) | + | | | | equivalent to FLASH_GetBank1Status function | + |----------------------------------------------------------------------------------------------------------------------------------| + |FLASH_WaitForLastOperation | Yes | Yes | - Wait for Bank1 last operation (for all devices) | + | | | | equivalent to: FLASH_WaitForLastBank1Operation function | + +----------------------------------------------------------------------------------------------------------------------------------+ + + ************************************************************************************************************************ + * New functions used for all STM32F10x devices to manage Bank1: * + * - These functions are mainly useful for STM32F10x_XL density devices, to have separate control for Bank1 and bank2 * + * - For other devices, these functions are optional (covered by functions listed above) * + ************************************************************************************************************************ + +----------------------------------------------------------------------------------------------------------------------------------+ + | Functions prototypes |STM32F10x_XL|Other STM32F10x| Comments | + | | devices | devices | | + |----------------------------------------------------------------------------------------------------------------------------------| + | FLASH_UnlockBank1 | Yes | Yes | - Unlock Bank1 | + |----------------------------------------------------------------------------------------------------------------------------------| + |FLASH_LockBank1 | Yes | Yes | - Lock Bank1 | + |----------------------------------------------------------------------------------------------------------------------------------| + | FLASH_EraseAllBank1Pages | Yes | Yes | - Erase all pages in Bank1 | + |----------------------------------------------------------------------------------------------------------------------------------| + | FLASH_GetBank1Status | Yes | Yes | - Return the status of Bank1 | + |----------------------------------------------------------------------------------------------------------------------------------| + | FLASH_WaitForLastBank1Operation | Yes | Yes | - Wait for Bank1 last operation | + +----------------------------------------------------------------------------------------------------------------------------------+ + + ***************************************************************************** + * New Functions used only with STM32F10x_XL density devices to manage Bank2 * + ***************************************************************************** + +----------------------------------------------------------------------------------------------------------------------------------+ + | Functions prototypes |STM32F10x_XL|Other STM32F10x| Comments | + | | devices | devices | | + |----------------------------------------------------------------------------------------------------------------------------------| + | FLASH_UnlockBank2 | Yes | No | - Unlock Bank2 | + |----------------------------------------------------------------------------------------------------------------------------------| + |FLASH_LockBank2 | Yes | No | - Lock Bank2 | + |----------------------------------------------------------------------------------------------------------------------------------| + | FLASH_EraseAllBank2Pages | Yes | No | - Erase all pages in Bank2 | + |----------------------------------------------------------------------------------------------------------------------------------| + | FLASH_GetBank2Status | Yes | No | - Return the status of Bank2 | + |----------------------------------------------------------------------------------------------------------------------------------| + | FLASH_WaitForLastBank2Operation | Yes | No | - Wait for Bank2 last operation | + |----------------------------------------------------------------------------------------------------------------------------------| + | FLASH_BootConfig | Yes | No | - Configure to boot from Bank1 or Bank2 | + +----------------------------------------------------------------------------------------------------------------------------------+ +@endcode +*/ + + +/** + * @brief Sets the code latency value. + * @note This function can be used for all STM32F10x devices. + * @param FLASH_Latency: specifies the FLASH Latency value. + * This parameter can be one of the following values: + * @arg FLASH_Latency_0: FLASH Zero Latency cycle + * @arg FLASH_Latency_1: FLASH One Latency cycle + * @arg FLASH_Latency_2: FLASH Two Latency cycles + * @retval None + */ +void FLASH_SetLatency(uint32_t FLASH_Latency) +{ + uint32_t tmpreg = 0; + + /* Check the parameters */ + assert_param(IS_FLASH_LATENCY(FLASH_Latency)); + + /* Read the ACR register */ + tmpreg = FLASH->ACR; + + /* Sets the Latency value */ + tmpreg &= ACR_LATENCY_Mask; + tmpreg |= FLASH_Latency; + + /* Write the ACR register */ + FLASH->ACR = tmpreg; +} + +/** + * @brief Enables or disables the Half cycle flash access. + * @note This function can be used for all STM32F10x devices. + * @param FLASH_HalfCycleAccess: specifies the FLASH Half cycle Access mode. + * This parameter can be one of the following values: + * @arg FLASH_HalfCycleAccess_Enable: FLASH Half Cycle Enable + * @arg FLASH_HalfCycleAccess_Disable: FLASH Half Cycle Disable + * @retval None + */ +void FLASH_HalfCycleAccessCmd(uint32_t FLASH_HalfCycleAccess) +{ + /* Check the parameters */ + assert_param(IS_FLASH_HALFCYCLEACCESS_STATE(FLASH_HalfCycleAccess)); + + /* Enable or disable the Half cycle access */ + FLASH->ACR &= ACR_HLFCYA_Mask; + FLASH->ACR |= FLASH_HalfCycleAccess; +} + +/** + * @brief Enables or disables the Prefetch Buffer. + * @note This function can be used for all STM32F10x devices. + * @param FLASH_PrefetchBuffer: specifies the Prefetch buffer status. + * This parameter can be one of the following values: + * @arg FLASH_PrefetchBuffer_Enable: FLASH Prefetch Buffer Enable + * @arg FLASH_PrefetchBuffer_Disable: FLASH Prefetch Buffer Disable + * @retval None + */ +void FLASH_PrefetchBufferCmd(uint32_t FLASH_PrefetchBuffer) +{ + /* Check the parameters */ + assert_param(IS_FLASH_PREFETCHBUFFER_STATE(FLASH_PrefetchBuffer)); + + /* Enable or disable the Prefetch Buffer */ + FLASH->ACR &= ACR_PRFTBE_Mask; + FLASH->ACR |= FLASH_PrefetchBuffer; +} + +/** + * @brief Unlocks the FLASH Program Erase Controller. + * @note This function can be used for all STM32F10x devices. + * - For STM32F10X_XL devices this function unlocks Bank1 and Bank2. + * - For all other devices it unlocks Bank1 and it is equivalent + * to FLASH_UnlockBank1 function.. + * @param None + * @retval None + */ +void FLASH_Unlock(void) +{ + /* Authorize the FPEC of Bank1 Access */ + FLASH->KEYR = FLASH_KEY1; + FLASH->KEYR = FLASH_KEY2; + +#ifdef STM32F10X_XL + /* Authorize the FPEC of Bank2 Access */ + FLASH->KEYR2 = FLASH_KEY1; + FLASH->KEYR2 = FLASH_KEY2; +#endif /* STM32F10X_XL */ +} +/** + * @brief Unlocks the FLASH Bank1 Program Erase Controller. + * @note This function can be used for all STM32F10x devices. + * - For STM32F10X_XL devices this function unlocks Bank1. + * - For all other devices it unlocks Bank1 and it is + * equivalent to FLASH_Unlock function. + * @param None + * @retval None + */ +void FLASH_UnlockBank1(void) +{ + /* Authorize the FPEC of Bank1 Access */ + FLASH->KEYR = FLASH_KEY1; + FLASH->KEYR = FLASH_KEY2; +} + +#ifdef STM32F10X_XL +/** + * @brief Unlocks the FLASH Bank2 Program Erase Controller. + * @note This function can be used only for STM32F10X_XL density devices. + * @param None + * @retval None + */ +void FLASH_UnlockBank2(void) +{ + /* Authorize the FPEC of Bank2 Access */ + FLASH->KEYR2 = FLASH_KEY1; + FLASH->KEYR2 = FLASH_KEY2; + +} +#endif /* STM32F10X_XL */ + +/** + * @brief Locks the FLASH Program Erase Controller. + * @note This function can be used for all STM32F10x devices. + * - For STM32F10X_XL devices this function Locks Bank1 and Bank2. + * - For all other devices it Locks Bank1 and it is equivalent + * to FLASH_LockBank1 function. + * @param None + * @retval None + */ +void FLASH_Lock(void) +{ + /* Set the Lock Bit to lock the FPEC and the CR of Bank1 */ + FLASH->CR |= CR_LOCK_Set; + +#ifdef STM32F10X_XL + /* Set the Lock Bit to lock the FPEC and the CR of Bank2 */ + 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 Bank2s pending flags + * - For other devices, it clears Bank1s 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****/