+++ /dev/null
-/**\r
- ******************************************************************************\r
- * @file stm32l1xx_flash.c\r
- * @author MCD Application Team\r
- * @version V1.0.0\r
- * @date 31-December-2010\r
- * @brief This file provides all the Flash firmware functions. These functions \r
- * can be executed from Internal FLASH or Internal SRAM memories. \r
- * The functions that should be called from SRAM are defined inside \r
- * the "stm32l1xx_flash_ramfunc.c" file.\r
- * This file provides firmware functions to manage the following \r
- * functionalities of the FLASH peripheral:\r
- * - FLASH Interface configuration\r
- * - FLASH Memory Programming\r
- * - DATA EEPROM Programming\r
- * - Option Bytes Programming\r
- * - Interrupts and flags management\r
- * \r
- * @verbatim\r
- * \r
- * ===================================================================\r
- * How to use this driver\r
- * ===================================================================\r
- * \r
- * This driver provides functions to configure and program the Flash \r
- * memory of all STM32L1xx devices\r
- * These functions are split in 5 groups\r
- * \r
- * 1. FLASH Interface configuration functions: this group includes \r
- * the management of following features:\r
- * - Set the latency\r
- * - Enable/Disable the prefetch buffer\r
- * - Enable/Disable the 64 bit Read Access \r
- * - Enable/Disable the RUN PowerDown mode\r
- * - Enable/Disable the SLEEP PowerDown mode \r
- * \r
- * 2. FLASH Memory Programming functions: this group includes all \r
- * needed functions to erase and program the main memory:\r
- * - Lock and Unlock the Flash interface.\r
- * - Erase function: Erase Page.\r
- * - Program functions: Fast Word and Half Page(should be \r
- * executed from internal SRAM).\r
- * \r
- * 3. DATA EEPROM Programming functions: this group includes all \r
- * needed functions to erase and program the DATA EEPROM memory:\r
- * - Lock and Unlock the DATA EEPROM interface.\r
- * - Erase function: Erase Word, erase Double Word (should be \r
- * executed from internal SRAM).\r
- * - Program functions: Fast Program Byte, Fast Program Half-Word, \r
- * FastProgramWord, Program Byte, Program Half-Word, \r
- * Program Word and Program Double-Word (should be executed \r
- * from internal SRAM).\r
- * \r
- * 4. FLASH Option Bytes Programming functions: this group includes \r
- * all needed functions to:\r
- * - Lock and Unlock the Flash Option bytes. \r
- * - Set/Reset the write protection\r
- * - Set the Read protection Level\r
- * - Set the BOR level\r
- * - Program the user option Bytes \r
- * - Launch the Option Bytes loader\r
- * - Get the Write protection\r
- * - Get the read protection status\r
- * - Get the BOR level\r
- * - Get the user option bytes \r
- * \r
- * 5. FLASH Interrupts and flag management functions: this group \r
- * includes all needed functions to:\r
- * - Enable/Disable the flash interrupt sources\r
- * - Get flags status\r
- * - Clear flags\r
- * - Get Flash operation status\r
- * - Wait for last flash operation \r
- * \r
- * @endverbatim\r
- * \r
- ******************************************************************************\r
- * @attention\r
- *\r
- * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS\r
- * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE\r
- * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY\r
- * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING\r
- * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE\r
- * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.\r
- *\r
- * <h2><center>© COPYRIGHT 2010 STMicroelectronics</center></h2>\r
- ****************************************************************************** \r
- */ \r
-\r
-/* Includes ------------------------------------------------------------------*/\r
-#include "stm32l1xx_flash.h"\r
-\r
-/** @addtogroup STM32L1xx_StdPeriph_Driver\r
- * @{\r
- */\r
-\r
-/** @defgroup FLASH \r
- * @brief FLASH driver modules\r
- * @{\r
- */ \r
-\r
-/* Private typedef -----------------------------------------------------------*/\r
-/* Private define ------------------------------------------------------------*/\r
- \r
-/* FLASH Mask */\r
-#define RDPRT_MASK ((uint32_t)0x00000002)\r
-#define WRP01_MASK ((uint32_t)0x0000FFFF)\r
-#define WRP23_MASK ((uint32_t)0xFFFF0000)\r
-\r
-/* Private macro -------------------------------------------------------------*/\r
-/* Private variables ---------------------------------------------------------*/\r
-/* Private function prototypes -----------------------------------------------*/\r
-/* Private functions ---------------------------------------------------------*/\r
- \r
-/** @defgroup FLASH_Private_Functions\r
- * @{\r
- */ \r
-\r
-/** @defgroup FLASH_Group1 FLASH Interface configuration functions\r
- * @brief FLASH Interface configuration functions \r
- *\r
-@verbatim \r
- ===============================================================================\r
- FLASH Interface configuration functions\r
- =============================================================================== \r
-\r
- FLASH_Interface configuration_Functions, includes the following functions:\r
- - void FLASH_SetLatency(uint32_t FLASH_Latency):\r
- To correctly read data from Flash memory, the number of wait states (LATENCY) \r
- must be correctly programmed according to the frequency of the CPU clock \r
- (HCLK) and the supply voltage of the device.\r
- ---------------------------------------------------------------- \r
- | Wait states | HCLK clock frequency (MHz) |\r
- | |------------------------------------------------| \r
- | (Latency) | voltage range | voltage range | \r
- | | 1.65 V - 3.6 V | 2.0 V - 3.6 V |\r
- | |----------------|---------------|---------------| \r
- | | VCORE = 1.2 V | VCORE = 1.5 V | VCORE = 1.8 V |\r
- |-------------- |----------------|---------------|---------------| \r
- |0WS(1CPU cycle)|0 < HCLK <= 2 |0 < HCLK <= 8 |0 < HCLK <= 16 |\r
- |---------------|----------------|---------------|---------------| \r
- |1WS(2CPU cycle)|2 < HCLK <= 4 |8 < HCLK <= 16 |16 < HCLK <= 32| \r
- ---------------------------------------------------------------- \r
- \r
- - void FLASH_PrefetchBufferCmd(FunctionalState NewState);\r
- - void FLASH_ReadAccess64Cmd(FunctionalState NewState);\r
- - void FLASH_RUNPowerDownCmd(FunctionalState NewState);\r
- - void FLASH_SLEEPPowerDownCmd(FunctionalState NewState);\r
- - void FLASH_ITConfig(uint32_t FLASH_IT, FunctionalState NewState);\r
- \r
- Here below the allowed configuration of Latency, 64Bit access and prefetch buffer\r
- -------------------------------------------------------------------------------- \r
- | | ACC64 = 0 | ACC64 = 1 |\r
- | Latency |----------------|---------------|---------------|---------------| \r
- | | PRFTEN = 0 | PRFTEN = 1 | PRFTEN = 0 | PRFTEN = 1 | \r
- |---------------|----------------|---------------|---------------|---------------| \r
- |0WS(1CPU cycle)| YES | NO | YES | YES |\r
- |---------------|----------------|---------------|---------------|---------------| \r
- |1WS(2CPU cycle)| NO | NO | YES | YES | \r
- -------------------------------------------------------------------------------- \r
- All these functions don't need the unlock sequence.\r
-\r
-@endverbatim\r
- * @{\r
- */\r
-\r
-/**\r
- * @brief Sets the code latency value.\r
- * @param FLASH_Latency: specifies the FLASH Latency value.\r
- * This parameter can be one of the following values:\r
- * @arg FLASH_Latency_0: FLASH Zero Latency cycle\r
- * @arg FLASH_Latency_1: FLASH One Latency cycle\r
- * @retval None\r
- */\r
-void FLASH_SetLatency(uint32_t FLASH_Latency)\r
-{\r
- uint32_t tmpreg = 0;\r
- \r
- /* Check the parameters */\r
- assert_param(IS_FLASH_LATENCY(FLASH_Latency));\r
- \r
- /* Read the ACR register */\r
- tmpreg = FLASH->ACR; \r
- \r
- /* Sets the Latency value */\r
- tmpreg &= (uint32_t) (~((uint32_t)FLASH_ACR_LATENCY));\r
- tmpreg |= FLASH_Latency;\r
- \r
- /* Write the ACR register */\r
- FLASH->ACR = tmpreg;\r
-}\r
-\r
-/**\r
- * @brief Enables or disables the Prefetch Buffer.\r
- * @param NewState: new state of the FLASH prefetch buffer.\r
- * This parameter can be: ENABLE or DISABLE. \r
- * @retval None\r
- */\r
-void FLASH_PrefetchBufferCmd(FunctionalState NewState)\r
-{\r
- /* Check the parameters */\r
- assert_param(IS_FUNCTIONAL_STATE(NewState));\r
- \r
- if(NewState != DISABLE)\r
- {\r
- FLASH->ACR |= FLASH_ACR_PRFTEN;\r
- }\r
- else\r
- {\r
- FLASH->ACR &= (uint32_t)(~((uint32_t)FLASH_ACR_PRFTEN));\r
- }\r
-}\r
-\r
-/**\r
- * @brief Enables or disables read access to flash by 64 bits.\r
- * @param NewState: new state of the FLASH read access mode.\r
- * This parameter can be: ENABLE or DISABLE. \r
- * @note - If this bit is set, the Read access 64 bit is used.\r
- * - If this bit is reset, the Read access 32 bit is used.\r
- * @note - This bit cannot be written at the same time as the LATENCY and \r
- * PRFTEN bits. \r
- * - To reset this bit, the LATENCY should be zero wait state and the \r
- * prefetch off.\r
- * @retval None\r
- */\r
-void FLASH_ReadAccess64Cmd(FunctionalState NewState)\r
-{\r
- /* Check the parameters */\r
- assert_param(IS_FUNCTIONAL_STATE(NewState));\r
- \r
- if(NewState != DISABLE)\r
- {\r
- FLASH->ACR |= FLASH_ACR_ACC64;\r
- }\r
- else\r
- {\r
- FLASH->ACR &= (uint32_t)(~((uint32_t)FLASH_ACR_ACC64));\r
- }\r
-}\r
-\r
-/**\r
- * @brief Enable or disable the power down mode during Sleep mode.\r
- * @note This function is used to power down the FLASH when the system is in SLEEP LP mode. \r
- * @param NewState: new state of the power down mode during sleep mode.\r
- * This parameter can be: ENABLE or DISABLE.\r
- * @retval None\r
- */\r
-void FLASH_SLEEPPowerDownCmd(FunctionalState NewState)\r
-{\r
- /* Check the parameters */\r
- assert_param(IS_FUNCTIONAL_STATE(NewState));\r
- \r
- if (NewState != DISABLE)\r
- {\r
- /* Set the SLEEP_PD bit to put Flash in power down mode during sleep mode */\r
- FLASH->ACR |= FLASH_ACR_SLEEP_PD;\r
- }\r
- else\r
- {\r
- /* Clear the SLEEP_PD bit in to put Flash in idle mode during sleep mode */\r
- FLASH->ACR &= (uint32_t)(~((uint32_t)FLASH_ACR_SLEEP_PD));\r
- }\r
-}\r
-\r
-/**\r
- * @}\r
- */\r
-\r
-/** @defgroup FLASH_Group2 FLASH Memory Programming functions\r
- * @brief FLASH Memory Programming functions\r
- *\r
-@verbatim \r
- ===============================================================================\r
- FLASH Memory Programming functions\r
- =============================================================================== \r
-\r
- The FLASH Memory Programming functions, includes the following functions:\r
- - void FLASH_Unlock(void);\r
- - void FLASH_Lock(void);\r
- - FLASH_Status FLASH_ErasePage(uint32_t Page_Address);\r
- - FLASH_Status FLASH_FastProgramWord(uint32_t Address, uint32_t Data);\r
- \r
- Any operation of erase or program should follow these steps:\r
-\r
- 1. Call the FLASH_Unlock() function to enable the flash control register and \r
- program memory access\r
-\r
- 2. Call the desired function to erase page or program data\r
-\r
- 3. Call the FLASH_Lock() to disable the flash program memory access \r
- (recommended to protect the FLASH memory against possible unwanted operation)\r
-\r
-@endverbatim\r
- * @{\r
- */\r
-\r
-/**\r
- * @brief Unlocks the FLASH control register and program memory access.\r
- * @param None\r
- * @retval None\r
- */\r
-void FLASH_Unlock(void)\r
-{\r
- if((FLASH->PECR & FLASH_PECR_PRGLOCK) != RESET)\r
- {\r
- /* Unlocking the data memory and FLASH_PECR register access */\r
- DATA_EEPROM_Unlock();\r
- \r
- /* Unlocking the program memory access */\r
- FLASH->PRGKEYR = FLASH_PRGKEY1;\r
- FLASH->PRGKEYR = FLASH_PRGKEY2; \r
- }\r
-}\r
-\r
-/**\r
- * @brief Locks the Program memory access.\r
- * @param None\r
- * @retval None\r
- */\r
-void FLASH_Lock(void)\r
-{\r
- /* Set the PRGLOCK Bit to lock the program memory access */\r
- FLASH->PECR |= FLASH_PECR_PRGLOCK;\r
-}\r
-\r
-/**\r
- * @brief Erases a specified page in program memory.\r
- * @note - To correctly run this function, the FLASH_Unlock() function\r
- * must be called before.\r
- * - Call the FLASH_Lock() to disable the flash memory access \r
- * (recommended to protect the FLASH memory against possible unwanted operation) \r
- * @param Page_Address: The page address in program memory to be erased.\r
- * @note A Page is erased in the Program memory only if the address to load \r
- * is the start address of a page (multiple of 256 bytes). \r
- * @retval FLASH Status: The returned value can be: \r
- * FLASH_ERROR_PROGRAM, FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.\r
- */\r
-FLASH_Status FLASH_ErasePage(uint32_t Page_Address)\r
-{\r
- FLASH_Status status = FLASH_COMPLETE;\r
-\r
- /* Check the parameters */\r
- assert_param(IS_FLASH_PROGRAM_ADDRESS(Page_Address));\r
- \r
- /* Wait for last operation to be completed */\r
- status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);\r
- \r
- if(status == FLASH_COMPLETE)\r
- {\r
- /* If the previous operation is completed, proceed to erase the page */\r
-\r
- /* Set the ERASE bit */\r
- FLASH->PECR |= FLASH_PECR_ERASE;\r
-\r
- /* Set PROG bit */\r
- FLASH->PECR |= FLASH_PECR_PROG;\r
- \r
- /* Write 00000000h to the first word of the program page to erase */\r
- *(__IO uint32_t *)Page_Address = 0x00000000;\r
- \r
- /* Wait for last operation to be completed */\r
- status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);\r
-\r
- /* If the erase operation is completed, disable the ERASE and PROG bits */\r
- FLASH->PECR &= (uint32_t)(~FLASH_PECR_PROG);\r
- FLASH->PECR &= (uint32_t)(~FLASH_PECR_ERASE); \r
- } \r
- /* Return the Erase Status */\r
- return status;\r
-}\r
-\r
-/**\r
- * @brief Programs a word at a specified address in program memory.\r
- * @note - To correctly run this function, the FLASH_Unlock() function\r
- * must be called before.\r
- * - Call the FLASH_Lock() to disable the flash memory access \r
- * (recommended to protect the FLASH memory against possible unwanted operation) \r
- * @param Address: specifies the address to be written.\r
- * @param Data: specifies the data to be written.\r
- * @retval FLASH Status: The returned value can be: \r
- * FLASH_ERROR_PROGRAM, FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT. \r
- */\r
-FLASH_Status FLASH_FastProgramWord(uint32_t Address, uint32_t Data)\r
-{\r
- FLASH_Status status = FLASH_COMPLETE;\r
-\r
- /* Check the parameters */\r
- assert_param(IS_FLASH_PROGRAM_ADDRESS(Address));\r
- \r
- /* Wait for last operation to be completed */\r
- status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);\r
- \r
- if(status == FLASH_COMPLETE)\r
- {\r
- /* If the previous operation is completed, proceed to program the new word */ \r
- *(__IO uint32_t *)Address = Data;\r
- \r
- /* Wait for last operation to be completed */\r
- status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT); \r
- }\r
- /* Return the Write Status */\r
- return status;\r
-}\r
-\r
-/**\r
- * @}\r
- */\r
- \r
-/** @defgroup FLASH_Group3 DATA EEPROM Programming functions\r
- * @brief DATA EEPROM Programming functions\r
- *\r
-@verbatim \r
- ===============================================================================\r
- DATA EEPROM Programming functions\r
- =============================================================================== \r
-\r
- The DATA_EEPROM Programming_Functions, includes the following functions:\r
- - void DATA_EEPROM_Unlock(void);\r
- - void DATA_EEPROM_Lock(void);\r
- - FLASH_Status DATA_EEPROM_EraseWord(uint32_t Address);\r
- - FLASH_Status DATA_EEPROM_FastProgramByte(uint32_t Address, uint8_t Data);\r
- - FLASH_Status DATA_EEPROM_FastProgramHalfWord(uint32_t Address, uint16_t Data);\r
- - FLASH_Status DATA_EEPROM_FastProgramWord(uint32_t Address, uint32_t Data);\r
- - FLASH_Status DATA_EEPROM_ProgramByte(uint32_t Address, uint8_t Data);\r
- - FLASH_Status DATA_EEPROM_ProgramHalfWord(uint32_t Address, uint16_t Data);\r
- - FLASH_Status DATA_EEPROM_ProgramWord(uint32_t Address, uint32_t Data);\r
- \r
- Any operation of erase or program should follow these steps:\r
-\r
- 1. Call the DATA_EEPROM_Unlock() function to enable the data EEPROM access\r
- and Flash program erase control register access.\r
-\r
- 2. Call the desired function to erase or program data\r
-\r
- 3. Call the DATA_EEPROM_Lock() to disable the data EEPROM access\r
- and Flash program erase control register access(recommended\r
- to protect the DATA_EEPROM against possible unwanted operation)\r
-\r
-@endverbatim\r
- * @{\r
- */\r
-\r
-/**\r
- * @brief Unlocks the data memory and FLASH_PECR register access.\r
- * @param None\r
- * @retval None\r
- */\r
-void DATA_EEPROM_Unlock(void)\r
-{\r
- if((FLASH->PECR & FLASH_PECR_PELOCK) != RESET)\r
- { \r
- /* Unlocking the Data memory and FLASH_PECR register access*/\r
- FLASH->PEKEYR = FLASH_PEKEY1;\r
- FLASH->PEKEYR = FLASH_PEKEY2;\r
- }\r
-}\r
-\r
-/**\r
- * @brief Locks the Data memory and FLASH_PECR register access.\r
- * @param None\r
- * @retval None\r
- */\r
-void DATA_EEPROM_Lock(void)\r
-{\r
- /* Set the PELOCK Bit to lock the data memory and FLASH_PECR register access */\r
- FLASH->PECR |= FLASH_PECR_PELOCK;\r
-}\r
-\r
-/**\r
- * @brief Enables or disables DATA EEPROM fixed Time programming (2*Tprog).\r
- * @param NewState: new state of the DATA EEPROM fixed Time programming mode.\r
- * This parameter can be: ENABLE or DISABLE. \r
- * @retval None\r
- */\r
-void DATA_EEPROM_FixedTimeProgramCmd(FunctionalState NewState)\r
-{\r
- /* Check the parameters */\r
- assert_param(IS_FUNCTIONAL_STATE(NewState));\r
- \r
- if(NewState != DISABLE)\r
- {\r
- FLASH->PECR |= (uint32_t)FLASH_PECR_FTDW;\r
- }\r
- else\r
- {\r
- FLASH->PECR &= (uint32_t)(~((uint32_t)FLASH_PECR_FTDW));\r
- }\r
-}\r
-\r
-/**\r
- * @brief Erase a word in data memory.\r
- * @param Address: specifies the address to be erased\r
- * @note1 - A data memory word is erased in the data memory only if the address \r
- * to load is the start address of a word (multiple of a word).\r
- * @note2 - To correctly run this function, the DATA_EEPROM_Unlock() function\r
- * must be called before.\r
- * - Call the DATA_EEPROM_Lock() to he data EEPROM access\r
- * and Flash program erase control register access(recommended to protect \r
- * the DATA_EEPROM against possible unwanted operation) \r
- * @retval FLASH Status: The returned value can be: \r
- * FLASH_ERROR_PROGRAM, FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.\r
- */\r
-FLASH_Status DATA_EEPROM_EraseWord(uint32_t Address)\r
-{\r
- FLASH_Status status = FLASH_COMPLETE;\r
- \r
- /* Check the parameters */\r
- assert_param(IS_FLASH_DATA_ADDRESS(Address));\r
- \r
- /* Wait for last operation to be completed */\r
- status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);\r
- \r
- if(status == FLASH_COMPLETE)\r
- {\r
- /* Write "00000000h" to valid address in the data memory" */\r
- *(__IO uint32_t *) Address = 0x00000000;\r
- }\r
- \r
- /* Return the erase status */\r
- return status;\r
-}\r
-\r
-/**\r
- * @brief Write a Byte at a specified address in data memory.\r
- * @note - To correctly run this function, the DATA_EEPROM_Unlock() function\r
- * must be called before.\r
- * - Call the DATA_EEPROM_Lock() to he data EEPROM access\r
- * and Flash program erase control register access(recommended to protect \r
- * the DATA_EEPROM against possible unwanted operation) \r
- * @param Address: specifies the address to be written.\r
- * @param Data: specifies the data to be written.\r
- * @note This function assumes that the is data word is already erased. \r
- * @retval FLASH Status: The returned value can be: \r
- * FLASH_ERROR_PROGRAM, FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT. \r
- */\r
-FLASH_Status DATA_EEPROM_FastProgramByte(uint32_t Address, uint8_t Data)\r
-{\r
- FLASH_Status status = FLASH_COMPLETE;\r
- uint32_t tmp = 0, tmpaddr = 0;\r
- \r
- /* Check the parameters */\r
- assert_param(IS_FLASH_DATA_ADDRESS(Address)); \r
-\r
- /* Wait for last operation to be completed */\r
- status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);\r
- \r
- if(status == FLASH_COMPLETE)\r
- {\r
- /* Clear the FTDW bit */\r
- FLASH->PECR &= (uint32_t)(~((uint32_t)FLASH_PECR_FTDW));\r
- \r
- if(Data != (uint8_t)0x00) \r
- {\r
- /* If the previous operation is completed, proceed to write the new Data */ \r
- *(__IO uint8_t *)Address = Data;\r
- \r
- /* Wait for last operation to be completed */\r
- status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT); \r
- }\r
- else\r
- {\r
- tmpaddr = Address & 0xFFFFFFFC;\r
- tmp = * (__IO uint32_t *) tmpaddr;\r
- tmpaddr = 0xFF << ((uint32_t) (0x8 * (Address & 0x3)));\r
- tmp &= ~tmpaddr;\r
- status = DATA_EEPROM_EraseWord(Address & 0xFFFFFFFC);\r
- status = DATA_EEPROM_FastProgramWord((Address & 0xFFFFFFFC), tmp); \r
- } \r
- }\r
- /* Return the Write Status */\r
- return status;\r
-}\r
-\r
-/**\r
- * @brief Writes a half word at a specified address in data memory.\r
- * @note - To correctly run this function, the DATA_EEPROM_Unlock() function\r
- * must be called before.\r
- * - Call the DATA_EEPROM_Lock() to he data EEPROM access\r
- * and Flash program erase control register access(recommended to protect \r
- * the DATA_EEPROM against possible unwanted operation) \r
- * @param Address: specifies the address to be written.\r
- * @param Data: specifies the data to be written.\r
- * @note This function assumes that the is data word is already erased. \r
- * @retval FLASH Status: The returned value can be: \r
- * FLASH_ERROR_PROGRAM, FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT. \r
- */\r
-FLASH_Status DATA_EEPROM_FastProgramHalfWord(uint32_t Address, uint16_t Data)\r
-{\r
- FLASH_Status status = FLASH_COMPLETE;\r
- uint32_t tmp = 0, tmpaddr = 0;\r
- \r
- /* Check the parameters */\r
- assert_param(IS_FLASH_DATA_ADDRESS(Address));\r
-\r
- /* Wait for last operation to be completed */\r
- status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);\r
- \r
- if(status == FLASH_COMPLETE)\r
- {\r
- /* Clear the FTDW bit */\r
- FLASH->PECR &= (uint32_t)(~((uint32_t)FLASH_PECR_FTDW));\r
- \r
- if(Data != (uint16_t)0x0000) \r
- {\r
- /* If the previous operation is completed, proceed to write the new data */ \r
- *(__IO uint16_t *)Address = Data;\r
- \r
- /* Wait for last operation to be completed */\r
- status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);\r
- }\r
- else\r
- {\r
- if((Address & 0x3) != 0x3)\r
- { \r
- tmpaddr = Address & 0xFFFFFFFC;\r
- tmp = * (__IO uint32_t *) tmpaddr;\r
- tmpaddr = 0xFFFF << ((uint32_t) (0x8 * (Address & 0x3)));\r
- tmp &= ~tmpaddr; \r
- status = DATA_EEPROM_EraseWord(Address & 0xFFFFFFFC);\r
- status = DATA_EEPROM_FastProgramWord((Address & 0xFFFFFFFC), tmp); \r
- }\r
- else\r
- {\r
- DATA_EEPROM_FastProgramByte(Address, 0x00);\r
- DATA_EEPROM_FastProgramByte(Address + 1, 0x00); \r
- } \r
- } \r
- } \r
- /* Return the Write Status */\r
- return status;\r
-}\r
-\r
-/**\r
- * @brief Programs a word at a specified address in data memory.\r
- * @note - To correctly run this function, the DATA_EEPROM_Unlock() function\r
- * must be called before.\r
- * - Call the DATA_EEPROM_Lock() to the data EEPROM access\r
- * and Flash program erase control register access(recommended to protect \r
- * the DATA_EEPROM against possible unwanted operation) \r
- * @param Address: specifies the address to be written.\r
- * @param Data: specifies the data to be written.\r
- * @note This function assumes that the is data word is already erased. \r
- * @retval FLASH Status: The returned value can be: \r
- * FLASH_ERROR_PROGRAM, FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT. \r
- */\r
-FLASH_Status DATA_EEPROM_FastProgramWord(uint32_t Address, uint32_t Data)\r
-{\r
- FLASH_Status status = FLASH_COMPLETE;\r
-\r
- /* Check the parameters */\r
- assert_param(IS_FLASH_DATA_ADDRESS(Address));\r
- \r
- /* Wait for last operation to be completed */\r
- status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);\r
- \r
- if(status == FLASH_COMPLETE)\r
- {\r
- /* Clear the FTDW bit */\r
- FLASH->PECR &= (uint32_t)(~((uint32_t)FLASH_PECR_FTDW));\r
- \r
- /* If the previous operation is completed, proceed to program the new data */ \r
- *(__IO uint32_t *)Address = Data;\r
- \r
- /* Wait for last operation to be completed */\r
- status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT); \r
- }\r
- /* Return the Write Status */\r
- return status;\r
-}\r
-\r
-/**\r
- * @brief Write a Byte at a specified address in data memory without erase.\r
- * @note - To correctly run this function, the DATA_EEPROM_Unlock() function\r
- * must be called before.\r
- * - Call the DATA_EEPROM_Lock() to he data EEPROM access\r
- * and Flash program erase control register access(recommended to protect \r
- * the DATA_EEPROM against possible unwanted operation) \r
- * @note The function DATA_EEPROM_FixedTimeProgramCmd() can be called before \r
- * this function to configure the Fixed Time Programming. \r
- * @param Address: specifies the address to be written.\r
- * @param Data: specifies the data to be written.\r
- * @retval FLASH Status: The returned value can be: \r
- * FLASH_ERROR_PROGRAM, FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT. \r
- */\r
-FLASH_Status DATA_EEPROM_ProgramByte(uint32_t Address, uint8_t Data)\r
-{\r
- FLASH_Status status = FLASH_COMPLETE;\r
- uint32_t tmp = 0, tmpaddr = 0;\r
- \r
- /* Check the parameters */\r
- assert_param(IS_FLASH_DATA_ADDRESS(Address)); \r
-\r
- /* Wait for last operation to be completed */\r
- status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);\r
- \r
- if(status == FLASH_COMPLETE)\r
- {\r
- if(Data != (uint8_t) 0x00)\r
- { \r
- *(__IO uint8_t *)Address = Data;\r
- \r
- /* Wait for last operation to be completed */\r
- status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);\r
-\r
- }\r
- else\r
- {\r
- tmpaddr = Address & 0xFFFFFFFC;\r
- tmp = * (__IO uint32_t *) tmpaddr;\r
- tmpaddr = 0xFF << ((uint32_t) (0x8 * (Address & 0x3)));\r
- tmp &= ~tmpaddr; \r
- status = DATA_EEPROM_EraseWord(Address & 0xFFFFFFFC);\r
- status = DATA_EEPROM_FastProgramWord((Address & 0xFFFFFFFC), tmp); \r
- } \r
- }\r
- /* Return the Write Status */\r
- return status;\r
-}\r
-\r
-/**\r
- * @brief Writes a half word at a specified address in data memory without erase.\r
- * @note - To correctly run this function, the DATA_EEPROM_Unlock() function\r
- * must be called before.\r
- * - Call the DATA_EEPROM_Lock() to he data EEPROM access\r
- * and Flash program erase control register access(recommended to protect \r
- * the DATA_EEPROM against possible unwanted operation)\r
- * @note The function DATA_EEPROM_FixedTimeProgramCmd() can be called before \r
- * this function to configure the Fixed Time Programming \r
- * @param Address: specifies the address to be written.\r
- * @param Data: specifies the data to be written.\r
- * @retval FLASH Status: The returned value can be: \r
- * FLASH_ERROR_PROGRAM, FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT. \r
- */\r
-FLASH_Status DATA_EEPROM_ProgramHalfWord(uint32_t Address, uint16_t Data)\r
-{\r
- FLASH_Status status = FLASH_COMPLETE;\r
- uint32_t tmp = 0, tmpaddr = 0;\r
- \r
- /* Check the parameters */\r
- assert_param(IS_FLASH_DATA_ADDRESS(Address));\r
-\r
- /* Wait for last operation to be completed */\r
- status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);\r
- \r
- if(status == FLASH_COMPLETE)\r
- {\r
- if(Data != (uint16_t)0x0000)\r
- {\r
- *(__IO uint16_t *)Address = Data;\r
- \r
- /* Wait for last operation to be completed */\r
- status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT); \r
- }\r
- else\r
- {\r
- if((Address & 0x3) != 0x3)\r
- {\r
- tmpaddr = Address & 0xFFFFFFFC;\r
- tmp = * (__IO uint32_t *) tmpaddr;\r
- tmpaddr = 0xFFFF << ((uint32_t) (0x8 * (Address & 0x3)));\r
- tmp &= ~tmpaddr; \r
- status = DATA_EEPROM_EraseWord(Address & 0xFFFFFFFC);\r
- status = DATA_EEPROM_FastProgramWord((Address & 0xFFFFFFFC), tmp); \r
- }\r
- else\r
- {\r
- DATA_EEPROM_FastProgramByte(Address, 0x00);\r
- DATA_EEPROM_FastProgramByte(Address + 1, 0x00); \r
- } \r
- } \r
- } \r
- /* Return the Write Status */\r
- return status;\r
-}\r
-\r
-/**\r
- * @brief Programs a word at a specified address in data memory without erase.\r
- * @note - To correctly run this function, the DATA_EEPROM_Unlock() function\r
- * must be called before.\r
- * - Call the DATA_EEPROM_Lock() to he data EEPROM access\r
- * and Flash program erase control register access(recommended to protect \r
- * the DATA_EEPROM against possible unwanted operation) \r
- * @note The function DATA_EEPROM_FixedTimeProgramCmd() can be called before \r
- * this function to configure the Fixed Time Programming. \r
- * @param Address: specifies the address to be written.\r
- * @param Data: specifies the data to be written.\r
- * @retval FLASH Status: The returned value can be: \r
- * FLASH_ERROR_PROGRAM, FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT. \r
- */\r
-FLASH_Status DATA_EEPROM_ProgramWord(uint32_t Address, uint32_t Data)\r
-{\r
- FLASH_Status status = FLASH_COMPLETE;\r
- \r
- /* Check the parameters */\r
- assert_param(IS_FLASH_DATA_ADDRESS(Address));\r
- \r
- /* Wait for last operation to be completed */\r
- status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);\r
- \r
- if(status == FLASH_COMPLETE)\r
- {\r
- *(__IO uint32_t *)Address = Data;\r
-\r
- /* Wait for last operation to be completed */\r
- status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT); \r
- }\r
- /* Return the Write Status */\r
- return status;\r
-}\r
-\r
-/**\r
- * @}\r
- */\r
-\r
-/** @defgroup FLASH_Group4 Option Bytes Programming functions\r
- * @brief Option Bytes Programming functions \r
- *\r
-@verbatim \r
- ===============================================================================\r
- Option Bytes Programming functions\r
- =============================================================================== \r
-\r
- The FLASH_Option Bytes Programming_functions, includes the following functions:\r
- - void FLASH_OB_Unlock(void);\r
- - void FLASH_OB_Lock(void);\r
- - void FLASH_OB_Launch(void);\r
- - FLASH_Status FLASH_OB_WRPConfig(uint32_t OB_WRP, FunctionalState NewState);\r
- - FLASH_Status FLASH_OB_RDPConfig(uint8_t OB_RDP);\r
- - FLASH_Status FLASH_OB_UserConfig(uint8_t OB_IWDG, uint8_t OB_STOP, uint8_t OB_STDBY);\r
- - FLASH_Status FLASH_OB_BORConfig(uint8_t OB_BOR);\r
- - uint8_t FLASH_OB_GetUser(void);\r
- - uint32_t FLASH_OB_GetWRP(void);\r
- - FlagStatus FLASH_OB_GetRDP(void);\r
- - uint8_t FLASH_OB_GetBOR(void);\r
- \r
- Any operation of erase or program should follow these steps:\r
- \r
- 1. Call the FLASH_OB_Unlock() function to enable the Flash option control register access\r
- \r
- 2. Call one or several functions to program the desired option bytes \r
- - void FLASH_OB_WRPConfig(uint32_t OB_WRP, FunctionalState NewState) => to Enable/Disable \r
- the desired sector write protection\r
- - void FLASH_OB_RDPConfig(uint8_t OB_RDP) => to set the desired read Protection Level\r
- - void FLASH_OB_UserConfig(uint8_t OB_IWDG, uint8_t OB_STOP, uint8_t OB_STDBY) => to configure \r
- the user option Bytes: IWDG, STOP and the Standby.\r
- - void FLASH_OB_BORConfig(uint8_t OB_BOR) => to Set the BOR level \r
- - FLASH_Status FLASH_ProgramOTP(uint32_t Address, uint32_t Data) => to program the OTP bytes \r
- \r
- 3. Once all needed option bytes to be programmed are correctly written, call the\r
- FLASH_OB_Launch(void) function to launch the Option Bytes programming process. \r
- \r
- 4. Call the FLASH_OB_Lock() to disable the Flash option control register access (recommended\r
- to protect the option Bytes against possible unwanted operations)\r
-\r
-@endverbatim\r
- * @{\r
- */\r
-\r
-/**\r
- * @brief Unlocks the option bytes block access.\r
- * @param None\r
- * @retval None\r
- */\r
-void FLASH_OB_Unlock(void)\r
-{\r
- if((FLASH->PECR & FLASH_PECR_OPTLOCK) != RESET)\r
- {\r
- /* Unlocking the data memory and FLASH_PECR register access */\r
- DATA_EEPROM_Unlock();\r
- \r
- /* Unlocking the option bytes block access */\r
- FLASH->OPTKEYR = FLASH_OPTKEY1;\r
- FLASH->OPTKEYR = FLASH_OPTKEY2;\r
- }\r
-}\r
-\r
-/**\r
- * @brief Locks the option bytes block access.\r
- * @param None\r
- * @retval None\r
- */\r
-void FLASH_OB_Lock(void)\r
-{\r
- /* Set the OPTLOCK Bit to lock the option bytes block access */\r
- FLASH->PECR |= FLASH_PECR_OPTLOCK;\r
-}\r
-\r
-/**\r
- * @brief Launch the option byte loading.\r
- * @param None\r
- * @retval None\r
- */\r
-void FLASH_OB_Launch(void)\r
-{\r
- /* Set the OBL_Launch bit to lauch the option byte loading */\r
- FLASH->PECR |= FLASH_PECR_OBL_LAUNCH;\r
-}\r
-\r
-/**\r
- * @brief Write protects the desired pages\r
- * @note - To correctly run this function, the FLASH_OB_Unlock() function\r
- * must be called before.\r
- * - Call the FLASH_OB_Lock() to disable the flash control register access and the option bytes \r
- * (recommended to protect the FLASH memory against possible unwanted operation) \r
- * @param OB_WRP: specifies the address of the pages to be write protected.\r
- * This parameter can be:\r
- * @arg value between OB_WRP_Pages0to15 and OB_WRP_Pages496to511\r
- * @arg OB_WRP_AllPages\r
- * @param NewState: new state of the specified FLASH Pages Wtite protection.\r
- * This parameter can be: ENABLE or DISABLE.\r
- * @retval FLASH Status: The returned value can be: \r
- * FLASH_ERROR_PROGRAM, FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.\r
- */\r
-FLASH_Status FLASH_OB_WRPConfig(uint32_t OB_WRP, FunctionalState NewState)\r
-{\r
- uint32_t WRP01_Data = 0, WRP23_Data = 0;\r
- \r
- FLASH_Status status = FLASH_COMPLETE;\r
- uint32_t tmp1 = 0, tmp2 = 0;\r
- \r
- /* Check the parameters */\r
- assert_param(IS_OB_WRP(OB_WRP));\r
- assert_param(IS_FUNCTIONAL_STATE(NewState));\r
- \r
- /* Wait for last operation to be completed */\r
- status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);\r
- \r
- if(status == FLASH_COMPLETE)\r
- {\r
- if (NewState != DISABLE)\r
- {\r
- WRP01_Data = (uint16_t)(((OB_WRP & WRP01_MASK) | OB->WRP01));\r
- WRP23_Data = (uint16_t)((((OB_WRP & WRP23_MASK)>>16 | OB->WRP23))); \r
- tmp1 = (uint32_t)(~(WRP01_Data) << 16)|(WRP01_Data);\r
- OB->WRP01 = tmp1;\r
- \r
- tmp2 = (uint32_t)(~(WRP23_Data) << 16)|(WRP23_Data);\r
- OB->WRP23 = tmp2; \r
- } \r
- \r
- else\r
- {\r
- WRP01_Data = (uint16_t)(~OB_WRP & (WRP01_MASK & OB->WRP01));\r
- WRP23_Data = (uint16_t)((((~OB_WRP & WRP23_MASK)>>16 & OB->WRP23))); \r
-\r
- tmp1 = (uint32_t)((~WRP01_Data) << 16)|(WRP01_Data);\r
- OB->WRP01 = tmp1;\r
- \r
- tmp2 = (uint32_t)((~WRP23_Data) << 16)|(WRP23_Data);\r
- OB->WRP23 = tmp2;\r
- }\r
- /* Wait for last operation to be completed */\r
- status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);\r
- }\r
-\r
- /* Return the write protection operation Status */\r
- return status; \r
-}\r
-\r
-/**\r
- * @brief Enables or disables the read out protection.\r
- * @note - To correctly run this function, the FLASH_OB_Unlock() function\r
- * must be called before.\r
- * - Call the FLASH_OB_Lock() to disable the flash control register access and the option bytes \r
- * (recommended to protect the FLASH memory against possible unwanted operation) \r
- * @param FLASH_ReadProtection_Level: specifies the read protection level. \r
- * This parameter can be:\r
- * @arg OB_RDP_Level_0: No protection\r
- * @arg OB_RDP_Level_1: Read protection of the memory \r
- * @arg OB_RDP_Level_2: Chip protection\r
- * @retval FLASH Status: The returned value can be: \r
- * FLASH_ERROR_PROGRAM, FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.\r
- */\r
-FLASH_Status FLASH_OB_RDPConfig(uint8_t OB_RDP)\r
-{\r
- FLASH_Status status = FLASH_COMPLETE;\r
- uint8_t tmp1 = 0;\r
- uint32_t tmp2 = 0;\r
- \r
- /* Check the parameters */\r
- assert_param(IS_OB_RDP(OB_RDP));\r
- status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);\r
- \r
- /* calculate the option byte to write */\r
- tmp1 = (uint8_t)(~(OB_RDP ));\r
- tmp2 = (uint32_t)(((uint32_t)((uint32_t)(tmp1) << 16)) | ((uint32_t)OB_RDP));\r
- \r
- if(status == FLASH_COMPLETE)\r
- { \r
- /* program read protection level */\r
- OB->RDP = tmp2;\r
- }\r
- \r
- /* Wait for last operation to be completed */\r
- status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);\r
- \r
- /* Return the Read protection operation Status */\r
- return status; \r
-}\r
-\r
-/**\r
- * @brief Programs the FLASH User Option Byte: IWDG_SW / RST_STOP / RST_STDBY.\r
- * @note - To correctly run this function, the FLASH_OB_Unlock() function\r
- * must be called before.\r
- * - Call the FLASH_OB_Lock() to disable the flash control register access and the option bytes \r
- * (recommended to protect the FLASH memory against possible unwanted operation) \r
- * @param OB_IWDG: Selects the WDG mode\r
- * This parameter can be one of the following values:\r
- * @arg OB_IWDG_SW: Software WDG selected\r
- * @arg OB_IWDG_HW: Hardware WDG selected\r
- * @param OB_STOP: Reset event when entering STOP mode.\r
- * This parameter can be one of the following values:\r
- * @arg OB_STOP_NoRST: No reset generated when entering in STOP\r
- * @arg OB_STOP_RST: Reset generated when entering in STOP\r
- * @param OB_STDBY: Reset event when entering Standby mode.\r
- * This parameter can be one of the following values:\r
- * @arg OB_STDBY_NoRST: No reset generated when entering in STANDBY\r
- * @arg OB_STDBY_RST: Reset generated when entering in STANDBY\r
- * @retval FLASH Status: The returned value can be: \r
- * FLASH_ERROR_PROGRAM, FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.\r
- */\r
-FLASH_Status FLASH_OB_UserConfig(uint8_t OB_IWDG, uint8_t OB_STOP, uint8_t OB_STDBY)\r
-{\r
- FLASH_Status status = FLASH_COMPLETE; \r
- uint32_t tmp = 0, tmp1 = 0;\r
-\r
- /* Check the parameters */\r
- assert_param(IS_OB_IWDG_SOURCE(OB_IWDG));\r
- assert_param(IS_OB_STOP_SOURCE(OB_STOP));\r
- assert_param(IS_OB_STDBY_SOURCE(OB_STDBY));\r
-\r
- /* Get the User Option byte register */\r
- tmp1 = (FLASH->OBR & 0x000F0000) >> 16;\r
- \r
- /* Calculate the user option byte to write */ \r
- tmp = (uint32_t)(((uint32_t)~((uint32_t)((uint32_t)(OB_IWDG) | (uint32_t)(OB_STOP) | (uint32_t)(OB_STDBY) | tmp1))) << ((uint32_t)0x10));\r
- tmp |= ((uint32_t)(OB_IWDG) | ((uint32_t)OB_STOP) | (uint32_t)(OB_STDBY) | tmp1);\r
- \r
- /* Wait for last operation to be completed */\r
- status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);\r
- \r
- if(status == FLASH_COMPLETE)\r
- { \r
- /* Write the User Option Byte */ \r
- OB->USER = tmp; \r
- }\r
- \r
- /* Wait for last operation to be completed */\r
- status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);\r
- \r
- /* Return the Option Byte program Status */\r
- return status;\r
-}\r
-\r
-/**\r
- * @brief Programs the FLASH brownout reset threshold level Option Byte.\r
- * @note - To correctly run this function, the FLASH_OB_Unlock() function\r
- * must be called before.\r
- * - Call the FLASH_OB_Lock() to disable the flash control register access and the option bytes \r
- * (recommended to protect the FLASH memory against possible unwanted operation) \r
- * @param OB_BOR: Selects the brownout reset threshold level\r
- * This parameter can be one of the following values:\r
- * @arg OB_BOR_OFF: BOR is disabled at power down, the reset is asserted when the VDD \r
- * power supply reaches the PDR(Power Down Reset) threshold (1.5V)\r
- * @arg OB_BOR_LEVEL1: BOR Reset threshold levels for 1.7V - 1.8V VDD power supply\r
- * @arg OB_BOR_LEVEL2: BOR Reset threshold levels for 1.9V - 2.0V VDD power supply\r
- * @arg OB_BOR_LEVEL3: BOR Reset threshold levels for 2.3V - 2.4V VDD power supply\r
- * @arg OB_BOR_LEVEL4: BOR Reset threshold levels for 2.55V - 2.65V VDD power supply\r
- * @arg OB_BOR_LEVEL5: BOR Reset threshold levels for 2.8V - 2.9V VDD power supply\r
- * @retval FLASH Status: The returned value can be: \r
- * FLASH_ERROR_PROGRAM, FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.\r
- */\r
-FLASH_Status FLASH_OB_BORConfig(uint8_t OB_BOR)\r
-{\r
- FLASH_Status status = FLASH_COMPLETE;\r
- uint32_t tmp = 0, tmp1 = 0;\r
-\r
- /* Check the parameters */\r
- assert_param(IS_OB_BOR_LEVEL(OB_BOR));\r
-\r
- /* Get the User Option byte register */\r
- tmp1 = (FLASH->OBR & 0x00700000) >> 16;\r
- \r
- /* Calculate the option byte to write */\r
- tmp = (uint32_t)~(OB_BOR | tmp1)<<16;\r
- tmp |= (OB_BOR | tmp1);\r
- \r
- /* Wait for last operation to be completed */\r
- status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);\r
- \r
- if(status == FLASH_COMPLETE)\r
- { \r
- /* Write the BOR Option Byte */ \r
- OB->USER = tmp; \r
- }\r
- \r
- /* Wait for last operation to be completed */\r
- status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);\r
- \r
- /* Return the Option Byte program Status */\r
- return status;\r
-}\r
-\r
-/**\r
- * @brief Returns the FLASH User Option Bytes values.\r
- * @param None\r
- * @retval The FLASH User Option Bytes .\r
- */\r
-uint8_t FLASH_OB_GetUser(void)\r
-{\r
- /* Return the User Option Byte */\r
- return (uint8_t)(FLASH->OBR >> 20);\r
-}\r
-\r
-/**\r
- * @brief Returns the FLASH Write Protection Option Bytes value.\r
- * @param None\r
- * @retval The FLASH Write Protection Option Bytes value\r
- */\r
-uint32_t FLASH_OB_GetWRP(void)\r
-{\r
- /* Return the FLASH write protection Register value */\r
- return (uint32_t)(FLASH->WRPR);\r
-}\r
-\r
-/**\r
- * @brief Checks whether the FLASH Read out Protection Status is set or not.\r
- * @param None\r
- * @retval FLASH ReadOut Protection Status(SET or RESET)\r
- */\r
-FlagStatus FLASH_OB_GetRDP(void)\r
-{\r
- FlagStatus readstatus = RESET;\r
- \r
- if ((uint8_t)(FLASH->OBR) != (uint8_t)OB_RDP_Level_0)\r
- {\r
- readstatus = SET;\r
- }\r
- else\r
- {\r
- readstatus = RESET;\r
- }\r
- return readstatus;\r
-}\r
-\r
-/**\r
- * @brief Returns the FLASH BOR level.\r
- * @param None\r
- * @retval The FLASH User Option Bytes .\r
- */\r
-uint8_t FLASH_OB_GetBOR(void)\r
-{\r
- /* Return the BOR level */\r
- return (uint8_t)((FLASH->OBR & (uint32_t)0x000F0000) >> 16);\r
-}\r
-\r
-/**\r
- * @}\r
- */\r
-\r
-/** @defgroup FLASH_Group5 Interrupts and flags management functions\r
- * @brief Interrupts and flags management functions\r
- *\r
-@verbatim \r
- ===============================================================================\r
- Interrupts and flags management functions\r
- =============================================================================== \r
-\r
-@endverbatim\r
- * @{\r
- */\r
-\r
-/**\r
- * @brief Enables or disables the specified FLASH interrupts.\r
- * @param FLASH_IT: specifies the FLASH interrupt sources to be enabled or \r
- * disabled.\r
- * This parameter can be any combination of the following values: \r
- * @arg FLASH_IT_EOP: FLASH end of programming Interrupt\r
- * @arg FLASH_IT_ERR: FLASH Error Interrupt \r
- * @retval None \r
- */\r
-void FLASH_ITConfig(uint32_t FLASH_IT, FunctionalState NewState)\r
-{\r
- /* Check the parameters */\r
- assert_param(IS_FLASH_IT(FLASH_IT)); \r
- assert_param(IS_FUNCTIONAL_STATE(NewState));\r
- \r
- if(NewState != DISABLE)\r
- {\r
- /* Enable the interrupt sources */\r
- FLASH->PECR |= FLASH_IT;\r
- }\r
- else\r
- {\r
- /* Disable the interrupt sources */\r
- FLASH->PECR &= ~(uint32_t)FLASH_IT;\r
- }\r
-}\r
-\r
-/**\r
- * @brief Checks whether the specified FLASH flag is set or not.\r
- * @param FLASH_FLAG: specifies the FLASH flag to check.\r
- * This parameter can be one of the following values:\r
- * @arg FLASH_FLAG_BSY: FLASH write/erase operations in progress flag \r
- * @arg FLASH_FLAG_EOP: FLASH End of Operation flag\r
- * @arg FLASH_FLAG_READY: FLASH Ready flag after low power mode\r
- * @arg FLASH_FLAG_ENDHV: FLASH End of high voltage flag\r
- * @arg FLASH_FLAG_WRPERR: FLASH Write protected error flag \r
- * @arg FLASH_FLAG_PGAERR: FLASH Programming Alignment error flag\r
- * @arg FLASH_FLAG_SIZERR: FLASH size error flag \r
- * @arg FLASH_FLAG_OPTVERR: FLASH Option validity error flag \r
- * @retval The new state of FLASH_FLAG (SET or RESET).\r
- */\r
-FlagStatus FLASH_GetFlagStatus(uint32_t FLASH_FLAG)\r
-{\r
- FlagStatus bitstatus = RESET;\r
-\r
- /* Check the parameters */\r
- assert_param(IS_FLASH_GET_FLAG(FLASH_FLAG));\r
-\r
- if((FLASH->SR & FLASH_FLAG) != (uint32_t)RESET)\r
- {\r
- bitstatus = SET;\r
- }\r
- else\r
- {\r
- bitstatus = RESET;\r
- }\r
- /* Return the new state of FLASH_FLAG (SET or RESET) */\r
- return bitstatus; \r
-}\r
-\r
-/**\r
- * @brief Clears the FLASH\92s pending flags.\r
- * @param FLASH_FLAG: specifies the FLASH flags to clear.\r
- * This parameter can be any combination of the following values:\r
- * @arg FLASH_FLAG_EOP: FLASH End of Operation flag\r
- * @arg FLASH_FLAG_WRPERR: FLASH Write protected error flag \r
- * @arg FLASH_FLAG_PGAERR: FLASH Programming Alignment error flag \r
- * @arg FLASH_FLAG_SIZERR: FLASH size error flag \r
- * @arg FLASH_FLAG_OPTVERR: FLASH Option validity error flag \r
- * @retval None\r
- */\r
-void FLASH_ClearFlag(uint32_t FLASH_FLAG)\r
-{\r
- /* Check the parameters */\r
- assert_param(IS_FLASH_CLEAR_FLAG(FLASH_FLAG));\r
- \r
- /* Clear the flags */\r
- FLASH->SR = FLASH_FLAG;\r
-}\r
-\r
-/**\r
- * @brief Returns the FLASH Status.\r
- * @param None\r
- * @retval FLASH Status: The returned value can be: \r
- * FLASH_BUSY, FLASH_ERROR_PROGRAM, FLASH_ERROR_WRP or FLASH_COMPLETE.\r
- */\r
-FLASH_Status FLASH_GetStatus(void)\r
-{\r
- FLASH_Status FLASHstatus = FLASH_COMPLETE;\r
- \r
- if((FLASH->SR & FLASH_FLAG_BSY) == FLASH_FLAG_BSY) \r
- {\r
- FLASHstatus = FLASH_BUSY;\r
- }\r
- else \r
- { \r
- if((FLASH->SR & (uint32_t)FLASH_FLAG_WRPERR)!= (uint32_t)0x00)\r
- { \r
- FLASHstatus = FLASH_ERROR_WRP;\r
- }\r
- else \r
- {\r
- if((FLASH->SR & (uint32_t)0xFEF0) != (uint32_t)0x00)\r
- {\r
- FLASHstatus = FLASH_ERROR_PROGRAM; \r
- }\r
- else\r
- {\r
- FLASHstatus = FLASH_COMPLETE;\r
- }\r
- }\r
- }\r
- /* Return the FLASH Status */\r
- return FLASHstatus;\r
-}\r
-\r
-\r
-/**\r
- * @brief Waits for a FLASH operation to complete or a TIMEOUT to occur.\r
- * @param Timeout: FLASH programming Timeout\r
- * @retval FLASH Status: The returned value can be: FLASH_BUSY, \r
- * FLASH_ERROR_PROGRAM, FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.\r
- */\r
-FLASH_Status FLASH_WaitForLastOperation(uint32_t Timeout)\r
-{ \r
- FLASH_Status status = FLASH_COMPLETE;\r
- \r
- /* Check for the FLASH Status */\r
- status = FLASH_GetStatus();\r
- \r
- /* Wait for a FLASH operation to complete or a TIMEOUT to occur */\r
- while((status == FLASH_BUSY) && (Timeout != 0x00))\r
- {\r
- status = FLASH_GetStatus();\r
- Timeout--;\r
- }\r
- \r
- if(Timeout == 0x00 )\r
- {\r
- status = FLASH_TIMEOUT;\r
- }\r
- /* Return the operation status */\r
- return status;\r
-}\r
-\r
-/**\r
- * @}\r
- */\r
-\r
-/**\r
- * @}\r
- */\r
- \r
- /**\r
- * @}\r
- */ \r
-\r
-/**\r
- * @}\r
- */ \r
-\r
-/******************* (C) COPYRIGHT 2010 STMicroelectronics *****END OF FILE****/\r
projects / fw / stlink / blobdiff