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targets/cmsis/TARGET_STM/TARGET_STM32F3XX/stm32f30x_flash.c@637:ed69428d4850, 2015-12-22 (annotated)

Committer:
jaerts
Date:
Tue Dec 22 13:22:16 2015 +0000
Revision:
637:ed69428d4850
Parent:
155:8435094ec241 
Add very shady LPC1768 CAN Filter implementation

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UserRevisionLine numberNew contents of line
mbed_official 155:8435094ec241 1 /**
mbed_official 155:8435094ec241 2 ******************************************************************************
mbed_official 155:8435094ec241 3 * @file stm32f30x_flash.c
mbed_official 155:8435094ec241 4 * @author MCD Application Team
mbed_official 155:8435094ec241 5 * @version V1.1.0
mbed_official 155:8435094ec241 6 * @date 27-February-2014
mbed_official 155:8435094ec241 7 * @brief This file provides firmware functions to manage the following
mbed_official 155:8435094ec241 8 * functionalities of the FLASH peripheral:
mbed_official 155:8435094ec241 9 * + FLASH Interface configuration
mbed_official 155:8435094ec241 10 * + FLASH Memory Programming
mbed_official 155:8435094ec241 11 * + Option Bytes Programming
mbed_official 155:8435094ec241 12 * + Interrupts and flags management
mbed_official 155:8435094ec241 13 *
mbed_official 155:8435094ec241 14 @verbatim
mbed_official 155:8435094ec241 15
mbed_official 155:8435094ec241 16 ===============================================================================
mbed_official 155:8435094ec241 17 ##### How to use this driver #####
mbed_official 155:8435094ec241 18 ===============================================================================
mbed_official 155:8435094ec241 19 [..] This driver provides functions to configure and program the FLASH
mbed_official 155:8435094ec241 20 memory of all STM32F30x devices. These functions are split in 4 groups:
mbed_official 155:8435094ec241 21 (#) FLASH Interface configuration functions: this group includes the
mbed_official 155:8435094ec241 22 management of following features:
mbed_official 155:8435094ec241 23 (++) Set the latency.
mbed_official 155:8435094ec241 24 (++) Enable/Disable the Half Cycle Access.
mbed_official 155:8435094ec241 25 (++) Enable/Disable the prefetch buffer.
mbed_official 155:8435094ec241 26 (#) FLASH Memory Programming functions: this group includes all needed
mbed_official 155:8435094ec241 27 functions to erase and program the main memory:
mbed_official 155:8435094ec241 28 (++) Lock and Unlock the FLASH interface.
mbed_official 155:8435094ec241 29 (++) Erase function: Erase page, erase all pages.
mbed_official 155:8435094ec241 30 (++) Program functions: Half Word and Word write.
mbed_official 155:8435094ec241 31 (#) FLASH Option Bytes Programming functions: this group includes all
mbed_official 155:8435094ec241 32 needed functions to manage the Option Bytes:
mbed_official 155:8435094ec241 33 (++) Lock and Unlock the Flash Option bytes.
mbed_official 155:8435094ec241 34 (++) Launch the Option Bytes loader
mbed_official 155:8435094ec241 35 (++) Erase the Option Bytes
mbed_official 155:8435094ec241 36 (++) Set/Reset the write protection
mbed_official 155:8435094ec241 37 (++) Set the Read protection Level
mbed_official 155:8435094ec241 38 (++) Program the user option Bytes
mbed_official 155:8435094ec241 39 (++) Set/Reset the BOOT1 bit
mbed_official 155:8435094ec241 40 (++) Enable/Disable the VDDA Analog Monitoring
mbed_official 155:8435094ec241 41 (++) Enable/Disable the SRAM parity
mbed_official 155:8435094ec241 42 (++) Get the user option bytes
mbed_official 155:8435094ec241 43 (++) Get the Write protection
mbed_official 155:8435094ec241 44 (++) Get the read protection status
mbed_official 155:8435094ec241 45 (#) FLASH Interrupts and flags management functions: this group includes
mbed_official 155:8435094ec241 46 all needed functions to:
mbed_official 155:8435094ec241 47 (++) Enable/Disable the FLASH interrupt sources.
mbed_official 155:8435094ec241 48 (++) Get flags status.
mbed_official 155:8435094ec241 49 (++) Clear flags.
mbed_official 155:8435094ec241 50 (++) Get FLASH operation status.
mbed_official 155:8435094ec241 51 (++) Wait for last FLASH operation.
mbed_official 155:8435094ec241 52
mbed_official 155:8435094ec241 53 @endverbatim
mbed_official 155:8435094ec241 54
mbed_official 155:8435094ec241 55 ******************************************************************************
mbed_official 155:8435094ec241 56 * @attention
mbed_official 155:8435094ec241 57 *
mbed_official 155:8435094ec241 58 * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
mbed_official 155:8435094ec241 59 *
mbed_official 155:8435094ec241 60 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 155:8435094ec241 61 * are permitted provided that the following conditions are met:
mbed_official 155:8435094ec241 62 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 155:8435094ec241 63 * this list of conditions and the following disclaimer.
mbed_official 155:8435094ec241 64 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 155:8435094ec241 65 * this list of conditions and the following disclaimer in the documentation
mbed_official 155:8435094ec241 66 * and/or other materials provided with the distribution.
mbed_official 155:8435094ec241 67 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 155:8435094ec241 68 * may be used to endorse or promote products derived from this software
mbed_official 155:8435094ec241 69 * without specific prior written permission.
mbed_official 155:8435094ec241 70 *
mbed_official 155:8435094ec241 71 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 155:8435094ec241 72 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 155:8435094ec241 73 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 155:8435094ec241 74 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 155:8435094ec241 75 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 155:8435094ec241 76 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 155:8435094ec241 77 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 155:8435094ec241 78 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 155:8435094ec241 79 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 155:8435094ec241 80 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 155:8435094ec241 81 *
mbed_official 155:8435094ec241 82 ******************************************************************************
mbed_official 155:8435094ec241 83 */
mbed_official 155:8435094ec241 84
mbed_official 155:8435094ec241 85 /* Includes ------------------------------------------------------------------*/
mbed_official 155:8435094ec241 86 #include "stm32f30x_flash.h"
mbed_official 155:8435094ec241 87
mbed_official 155:8435094ec241 88 /** @addtogroup STM32F30x_StdPeriph_Driver
mbed_official 155:8435094ec241 89 * @{
mbed_official 155:8435094ec241 90 */
mbed_official 155:8435094ec241 91
mbed_official 155:8435094ec241 92 /** @defgroup FLASH
mbed_official 155:8435094ec241 93 * @brief FLASH driver modules
mbed_official 155:8435094ec241 94 * @{
mbed_official 155:8435094ec241 95 */
mbed_official 155:8435094ec241 96
mbed_official 155:8435094ec241 97 /* Private typedef -----------------------------------------------------------*/
mbed_official 155:8435094ec241 98 /* Private define ------------------------------------------------------------*/
mbed_official 155:8435094ec241 99
mbed_official 155:8435094ec241 100 /* FLASH Mask */
mbed_official 155:8435094ec241 101 #define RDPRT_MASK ((uint32_t)0x00000002)
mbed_official 155:8435094ec241 102 #define WRP01_MASK ((uint32_t)0x0000FFFF)
mbed_official 155:8435094ec241 103 #define WRP23_MASK ((uint32_t)0xFFFF0000)
mbed_official 155:8435094ec241 104 /* Private macro -------------------------------------------------------------*/
mbed_official 155:8435094ec241 105 /* Private variables ---------------------------------------------------------*/
mbed_official 155:8435094ec241 106 /* Private function prototypes -----------------------------------------------*/
mbed_official 155:8435094ec241 107 /* Private functions ---------------------------------------------------------*/
mbed_official 155:8435094ec241 108
mbed_official 155:8435094ec241 109 /** @defgroup FLASH_Private_Functions
mbed_official 155:8435094ec241 110 * @{
mbed_official 155:8435094ec241 111 */
mbed_official 155:8435094ec241 112
mbed_official 155:8435094ec241 113 /** @defgroup FLASH_Group1 FLASH Interface configuration functions
mbed_official 155:8435094ec241 114 * @brief FLASH Interface configuration functions
mbed_official 155:8435094ec241 115 *
mbed_official 155:8435094ec241 116
mbed_official 155:8435094ec241 117 @verbatim
mbed_official 155:8435094ec241 118 ===============================================================================
mbed_official 155:8435094ec241 119 ##### FLASH Interface configuration functions #####
mbed_official 155:8435094ec241 120 ===============================================================================
mbed_official 155:8435094ec241 121 [..] This group includes the following functions:
mbed_official 155:8435094ec241 122 (+) void FLASH_SetLatency(uint32_t FLASH_Latency);
mbed_official 155:8435094ec241 123 (+) void FLASH_HalfCycleAccessCmd(uint32_t FLASH_HalfCycleAccess);
mbed_official 155:8435094ec241 124 (+) void FLASH_PrefetchBufferCmd(FunctionalState NewState);
mbed_official 155:8435094ec241 125 [..] The unlock sequence is not needed for these functions.
mbed_official 155:8435094ec241 126
mbed_official 155:8435094ec241 127 @endverbatim
mbed_official 155:8435094ec241 128 * @{
mbed_official 155:8435094ec241 129 */
mbed_official 155:8435094ec241 130
mbed_official 155:8435094ec241 131 /**
mbed_official 155:8435094ec241 132 * @brief Sets the code latency value.
mbed_official 155:8435094ec241 133 * @param FLASH_Latency: specifies the FLASH Latency value.
mbed_official 155:8435094ec241 134 * This parameter can be one of the following values:
mbed_official 155:8435094ec241 135 * @arg FLASH_Latency_0: FLASH Zero Latency cycle
mbed_official 155:8435094ec241 136 * @arg FLASH_Latency_1: FLASH One Latency cycle
mbed_official 155:8435094ec241 137 * @arg FLASH_Latency_2: FLASH Two Latency cycles
mbed_official 155:8435094ec241 138 * @retval None
mbed_official 155:8435094ec241 139 */
mbed_official 155:8435094ec241 140 void FLASH_SetLatency(uint32_t FLASH_Latency)
mbed_official 155:8435094ec241 141 {
mbed_official 155:8435094ec241 142 uint32_t tmpreg = 0;
mbed_official 155:8435094ec241 143
mbed_official 155:8435094ec241 144 /* Check the parameters */
mbed_official 155:8435094ec241 145 assert_param(IS_FLASH_LATENCY(FLASH_Latency));
mbed_official 155:8435094ec241 146
mbed_official 155:8435094ec241 147 /* Read the ACR register */
mbed_official 155:8435094ec241 148 tmpreg = FLASH->ACR;
mbed_official 155:8435094ec241 149
mbed_official 155:8435094ec241 150 /* Sets the Latency value */
mbed_official 155:8435094ec241 151 tmpreg &= (uint32_t) (~((uint32_t)FLASH_ACR_LATENCY));
mbed_official 155:8435094ec241 152 tmpreg |= FLASH_Latency;
mbed_official 155:8435094ec241 153
mbed_official 155:8435094ec241 154 /* Write the ACR register */
mbed_official 155:8435094ec241 155 FLASH->ACR = tmpreg;
mbed_official 155:8435094ec241 156 }
mbed_official 155:8435094ec241 157
mbed_official 155:8435094ec241 158 /**
mbed_official 155:8435094ec241 159 * @brief Enables or disables the Half cycle flash access.
mbed_official 155:8435094ec241 160 * @param FLASH_HalfCycleAccess: specifies the FLASH Half cycle Access mode.
mbed_official 155:8435094ec241 161 * This parameter can be one of the following values:
mbed_official 155:8435094ec241 162 * @arg FLASH_HalfCycleAccess_Enable: FLASH Half Cycle Enable
mbed_official 155:8435094ec241 163 * @arg FLASH_HalfCycleAccess_Disable: FLASH Half Cycle Disable
mbed_official 155:8435094ec241 164 * @retval None
mbed_official 155:8435094ec241 165 */
mbed_official 155:8435094ec241 166 void FLASH_HalfCycleAccessCmd(FunctionalState NewState)
mbed_official 155:8435094ec241 167 {
mbed_official 155:8435094ec241 168 /* Check the parameters */
mbed_official 155:8435094ec241 169 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 155:8435094ec241 170
mbed_official 155:8435094ec241 171 if(NewState != DISABLE)
mbed_official 155:8435094ec241 172 {
mbed_official 155:8435094ec241 173 FLASH->ACR |= FLASH_ACR_HLFCYA;
mbed_official 155:8435094ec241 174 }
mbed_official 155:8435094ec241 175 else
mbed_official 155:8435094ec241 176 {
mbed_official 155:8435094ec241 177 FLASH->ACR &= (uint32_t)(~((uint32_t)FLASH_ACR_HLFCYA));
mbed_official 155:8435094ec241 178 }
mbed_official 155:8435094ec241 179 }
mbed_official 155:8435094ec241 180
mbed_official 155:8435094ec241 181 /**
mbed_official 155:8435094ec241 182 * @brief Enables or disables the Prefetch Buffer.
mbed_official 155:8435094ec241 183 * @param NewState: new state of the Prefetch Buffer.
mbed_official 155:8435094ec241 184 * This parameter can be: ENABLE or DISABLE.
mbed_official 155:8435094ec241 185 * @retval None
mbed_official 155:8435094ec241 186 */
mbed_official 155:8435094ec241 187 void FLASH_PrefetchBufferCmd(FunctionalState NewState)
mbed_official 155:8435094ec241 188 {
mbed_official 155:8435094ec241 189 /* Check the parameters */
mbed_official 155:8435094ec241 190 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 155:8435094ec241 191
mbed_official 155:8435094ec241 192 if(NewState != DISABLE)
mbed_official 155:8435094ec241 193 {
mbed_official 155:8435094ec241 194 FLASH->ACR |= FLASH_ACR_PRFTBE;
mbed_official 155:8435094ec241 195 }
mbed_official 155:8435094ec241 196 else
mbed_official 155:8435094ec241 197 {
mbed_official 155:8435094ec241 198 FLASH->ACR &= (uint32_t)(~((uint32_t)FLASH_ACR_PRFTBE));
mbed_official 155:8435094ec241 199 }
mbed_official 155:8435094ec241 200 }
mbed_official 155:8435094ec241 201
mbed_official 155:8435094ec241 202 /**
mbed_official 155:8435094ec241 203 * @}
mbed_official 155:8435094ec241 204 */
mbed_official 155:8435094ec241 205
mbed_official 155:8435094ec241 206 /** @defgroup FLASH_Group2 FLASH Memory Programming functions
mbed_official 155:8435094ec241 207 * @brief FLASH Memory Programming functions
mbed_official 155:8435094ec241 208 *
mbed_official 155:8435094ec241 209 @verbatim
mbed_official 155:8435094ec241 210 ===============================================================================
mbed_official 155:8435094ec241 211 ##### FLASH Memory Programming functions #####
mbed_official 155:8435094ec241 212 ===============================================================================
mbed_official 155:8435094ec241 213 [..] This group includes the following functions:
mbed_official 155:8435094ec241 214 (+) void FLASH_Unlock(void);
mbed_official 155:8435094ec241 215 (+) void FLASH_Lock(void);
mbed_official 155:8435094ec241 216 (+) FLASH_Status FLASH_ErasePage(uint32_t Page_Address);
mbed_official 155:8435094ec241 217 (+) FLASH_Status FLASH_EraseAllPages(void);
mbed_official 155:8435094ec241 218 (+) FLASH_Status FLASH_ProgramWord(uint32_t Address, uint32_t Data);
mbed_official 155:8435094ec241 219 (+) FLASH_Status FLASH_ProgramHalfWord(uint32_t Address, uint16_t Data);
mbed_official 155:8435094ec241 220 [..] Any operation of erase or program should follow these steps:
mbed_official 155:8435094ec241 221 (#) Call the FLASH_Unlock() function to enable the FLASH control register
mbed_official 155:8435094ec241 222 program memory access.
mbed_official 155:8435094ec241 223 (#) Call the desired function to erase page or program data.
mbed_official 155:8435094ec241 224 (#) Call the FLASH_Lock() function to disable the FLASH control register
mbed_official 155:8435094ec241 225 access (recommended to protect the FLASH memory against possible
mbed_official 155:8435094ec241 226 unwanted operation).
mbed_official 155:8435094ec241 227
mbed_official 155:8435094ec241 228 @endverbatim
mbed_official 155:8435094ec241 229 * @{
mbed_official 155:8435094ec241 230 */
mbed_official 155:8435094ec241 231
mbed_official 155:8435094ec241 232 /**
mbed_official 155:8435094ec241 233 * @brief Unlocks the FLASH control register access
mbed_official 155:8435094ec241 234 * @param None
mbed_official 155:8435094ec241 235 * @retval None
mbed_official 155:8435094ec241 236 */
mbed_official 155:8435094ec241 237 void FLASH_Unlock(void)
mbed_official 155:8435094ec241 238 {
mbed_official 155:8435094ec241 239 if((FLASH->CR & FLASH_CR_LOCK) != RESET)
mbed_official 155:8435094ec241 240 {
mbed_official 155:8435094ec241 241 /* Authorize the FLASH Registers access */
mbed_official 155:8435094ec241 242 FLASH->KEYR = FLASH_KEY1;
mbed_official 155:8435094ec241 243 FLASH->KEYR = FLASH_KEY2;
mbed_official 155:8435094ec241 244 }
mbed_official 155:8435094ec241 245 }
mbed_official 155:8435094ec241 246
mbed_official 155:8435094ec241 247 /**
mbed_official 155:8435094ec241 248 * @brief Locks the FLASH control register access
mbed_official 155:8435094ec241 249 * @param None
mbed_official 155:8435094ec241 250 * @retval None
mbed_official 155:8435094ec241 251 */
mbed_official 155:8435094ec241 252 void FLASH_Lock(void)
mbed_official 155:8435094ec241 253 {
mbed_official 155:8435094ec241 254 /* Set the LOCK Bit to lock the FLASH Registers access */
mbed_official 155:8435094ec241 255 FLASH->CR |= FLASH_CR_LOCK;
mbed_official 155:8435094ec241 256 }
mbed_official 155:8435094ec241 257
mbed_official 155:8435094ec241 258 /**
mbed_official 155:8435094ec241 259 * @brief Erases a specified page in program memory.
mbed_official 155:8435094ec241 260 * @note To correctly run this function, the FLASH_Unlock() function
mbed_official 155:8435094ec241 261 * must be called before.
mbed_official 155:8435094ec241 262 * @note Call the FLASH_Lock() to disable the flash memory access
mbed_official 155:8435094ec241 263 * (recommended to protect the FLASH memory against possible unwanted operation)
mbed_official 155:8435094ec241 264 * @param Page_Address: The page address in program memory to be erased.
mbed_official 155:8435094ec241 265 * @note A Page is erased in the Program memory only if the address to load
mbed_official 155:8435094ec241 266 * is the start address of a page (multiple of 1024 bytes).
mbed_official 155:8435094ec241 267 * @retval FLASH Status: The returned value can be:
mbed_official 155:8435094ec241 268 * FLASH_ERROR_PROGRAM, FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
mbed_official 155:8435094ec241 269 */
mbed_official 155:8435094ec241 270 FLASH_Status FLASH_ErasePage(uint32_t Page_Address)
mbed_official 155:8435094ec241 271 {
mbed_official 155:8435094ec241 272 FLASH_Status status = FLASH_COMPLETE;
mbed_official 155:8435094ec241 273
mbed_official 155:8435094ec241 274 /* Check the parameters */
mbed_official 155:8435094ec241 275 assert_param(IS_FLASH_PROGRAM_ADDRESS(Page_Address));
mbed_official 155:8435094ec241 276
mbed_official 155:8435094ec241 277 /* Wait for last operation to be completed */
mbed_official 155:8435094ec241 278 status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);
mbed_official 155:8435094ec241 279
mbed_official 155:8435094ec241 280 if(status == FLASH_COMPLETE)
mbed_official 155:8435094ec241 281 {
mbed_official 155:8435094ec241 282 /* If the previous operation is completed, proceed to erase the page */
mbed_official 155:8435094ec241 283 FLASH->CR |= FLASH_CR_PER;
mbed_official 155:8435094ec241 284 FLASH->AR = Page_Address;
mbed_official 155:8435094ec241 285 FLASH->CR |= FLASH_CR_STRT;
mbed_official 155:8435094ec241 286
mbed_official 155:8435094ec241 287 /* Wait for last operation to be completed */
mbed_official 155:8435094ec241 288 status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);
mbed_official 155:8435094ec241 289
mbed_official 155:8435094ec241 290 /* Disable the PER Bit */
mbed_official 155:8435094ec241 291 FLASH->CR &= ~FLASH_CR_PER;
mbed_official 155:8435094ec241 292 }
mbed_official 155:8435094ec241 293
mbed_official 155:8435094ec241 294 /* Return the Erase Status */
mbed_official 155:8435094ec241 295 return status;
mbed_official 155:8435094ec241 296 }
mbed_official 155:8435094ec241 297
mbed_official 155:8435094ec241 298 /**
mbed_official 155:8435094ec241 299 * @brief Erases all FLASH pages.
mbed_official 155:8435094ec241 300 * @note To correctly run this function, the FLASH_Unlock() function
mbed_official 155:8435094ec241 301 * must be called before.
mbed_official 155:8435094ec241 302 * all the FLASH_Lock() to disable the flash memory access
mbed_official 155:8435094ec241 303 * (recommended to protect the FLASH memory against possible unwanted operation)
mbed_official 155:8435094ec241 304 * @param None
mbed_official 155:8435094ec241 305 * @retval FLASH Status: The returned value can be: FLASH_ERROR_PG,
mbed_official 155:8435094ec241 306 * FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
mbed_official 155:8435094ec241 307 */
mbed_official 155:8435094ec241 308 FLASH_Status FLASH_EraseAllPages(void)
mbed_official 155:8435094ec241 309 {
mbed_official 155:8435094ec241 310 FLASH_Status status = FLASH_COMPLETE;
mbed_official 155:8435094ec241 311
mbed_official 155:8435094ec241 312 /* Wait for last operation to be completed */
mbed_official 155:8435094ec241 313 status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);
mbed_official 155:8435094ec241 314
mbed_official 155:8435094ec241 315 if(status == FLASH_COMPLETE)
mbed_official 155:8435094ec241 316 {
mbed_official 155:8435094ec241 317 /* if the previous operation is completed, proceed to erase all pages */
mbed_official 155:8435094ec241 318 FLASH->CR |= FLASH_CR_MER;
mbed_official 155:8435094ec241 319 FLASH->CR |= FLASH_CR_STRT;
mbed_official 155:8435094ec241 320
mbed_official 155:8435094ec241 321 /* Wait for last operation to be completed */
mbed_official 155:8435094ec241 322 status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);
mbed_official 155:8435094ec241 323
mbed_official 155:8435094ec241 324 /* Disable the MER Bit */
mbed_official 155:8435094ec241 325 FLASH->CR &= ~FLASH_CR_MER;
mbed_official 155:8435094ec241 326 }
mbed_official 155:8435094ec241 327
mbed_official 155:8435094ec241 328 /* Return the Erase Status */
mbed_official 155:8435094ec241 329 return status;
mbed_official 155:8435094ec241 330 }
mbed_official 155:8435094ec241 331
mbed_official 155:8435094ec241 332 /**
mbed_official 155:8435094ec241 333 * @brief Programs a word at a specified address.
mbed_official 155:8435094ec241 334 * @note To correctly run this function, the FLASH_Unlock() function
mbed_official 155:8435094ec241 335 * must be called before.
mbed_official 155:8435094ec241 336 * Call the FLASH_Lock() to disable the flash memory access
mbed_official 155:8435094ec241 337 * (recommended to protect the FLASH memory against possible unwanted operation)
mbed_official 155:8435094ec241 338 * @param Address: specifies the address to be programmed.
mbed_official 155:8435094ec241 339 * @param Data: specifies the data to be programmed.
mbed_official 155:8435094ec241 340 * @retval FLASH Status: The returned value can be: FLASH_ERROR_PG,
mbed_official 155:8435094ec241 341 * FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
mbed_official 155:8435094ec241 342 */
mbed_official 155:8435094ec241 343 FLASH_Status FLASH_ProgramWord(uint32_t Address, uint32_t Data)
mbed_official 155:8435094ec241 344 {
mbed_official 155:8435094ec241 345 FLASH_Status status = FLASH_COMPLETE;
mbed_official 155:8435094ec241 346 __IO uint32_t tmp = 0;
mbed_official 155:8435094ec241 347
mbed_official 155:8435094ec241 348 /* Check the parameters */
mbed_official 155:8435094ec241 349 assert_param(IS_FLASH_PROGRAM_ADDRESS(Address));
mbed_official 155:8435094ec241 350
mbed_official 155:8435094ec241 351 /* Wait for last operation to be completed */
mbed_official 155:8435094ec241 352 status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);
mbed_official 155:8435094ec241 353
mbed_official 155:8435094ec241 354 if(status == FLASH_COMPLETE)
mbed_official 155:8435094ec241 355 {
mbed_official 155:8435094ec241 356 /* If the previous operation is completed, proceed to program the new first
mbed_official 155:8435094ec241 357 half word */
mbed_official 155:8435094ec241 358 FLASH->CR |= FLASH_CR_PG;
mbed_official 155:8435094ec241 359
mbed_official 155:8435094ec241 360 *(__IO uint16_t*)Address = (uint16_t)Data;
mbed_official 155:8435094ec241 361
mbed_official 155:8435094ec241 362 /* Wait for last operation to be completed */
mbed_official 155:8435094ec241 363 status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);
mbed_official 155:8435094ec241 364
mbed_official 155:8435094ec241 365 if(status == FLASH_COMPLETE)
mbed_official 155:8435094ec241 366 {
mbed_official 155:8435094ec241 367 /* If the previous operation is completed, proceed to program the new second
mbed_official 155:8435094ec241 368 half word */
mbed_official 155:8435094ec241 369 tmp = Address + 2;
mbed_official 155:8435094ec241 370
mbed_official 155:8435094ec241 371 *(__IO uint16_t*) tmp = Data >> 16;
mbed_official 155:8435094ec241 372
mbed_official 155:8435094ec241 373 /* Wait for last operation to be completed */
mbed_official 155:8435094ec241 374 status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);
mbed_official 155:8435094ec241 375
mbed_official 155:8435094ec241 376 /* Disable the PG Bit */
mbed_official 155:8435094ec241 377 FLASH->CR &= ~FLASH_CR_PG;
mbed_official 155:8435094ec241 378 }
mbed_official 155:8435094ec241 379 else
mbed_official 155:8435094ec241 380 {
mbed_official 155:8435094ec241 381 /* Disable the PG Bit */
mbed_official 155:8435094ec241 382 FLASH->CR &= ~FLASH_CR_PG;
mbed_official 155:8435094ec241 383 }
mbed_official 155:8435094ec241 384 }
mbed_official 155:8435094ec241 385
mbed_official 155:8435094ec241 386 /* Return the Program Status */
mbed_official 155:8435094ec241 387 return status;
mbed_official 155:8435094ec241 388 }
mbed_official 155:8435094ec241 389
mbed_official 155:8435094ec241 390 /**
mbed_official 155:8435094ec241 391 * @brief Programs a half word at a specified address.
mbed_official 155:8435094ec241 392 * @note To correctly run this function, the FLASH_Unlock() function
mbed_official 155:8435094ec241 393 * must be called before.
mbed_official 155:8435094ec241 394 * Call the FLASH_Lock() to disable the flash memory access
mbed_official 155:8435094ec241 395 * (recommended to protect the FLASH memory against possible unwanted operation)
mbed_official 155:8435094ec241 396 * @param Address: specifies the address to be programmed.
mbed_official 155:8435094ec241 397 * @param Data: specifies the data to be programmed.
mbed_official 155:8435094ec241 398 * @retval FLASH Status: The returned value can be: FLASH_ERROR_PG,
mbed_official 155:8435094ec241 399 * FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
mbed_official 155:8435094ec241 400 */
mbed_official 155:8435094ec241 401 FLASH_Status FLASH_ProgramHalfWord(uint32_t Address, uint16_t Data)
mbed_official 155:8435094ec241 402 {
mbed_official 155:8435094ec241 403 FLASH_Status status = FLASH_COMPLETE;
mbed_official 155:8435094ec241 404
mbed_official 155:8435094ec241 405 /* Check the parameters */
mbed_official 155:8435094ec241 406 assert_param(IS_FLASH_PROGRAM_ADDRESS(Address));
mbed_official 155:8435094ec241 407
mbed_official 155:8435094ec241 408 /* Wait for last operation to be completed */
mbed_official 155:8435094ec241 409 status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);
mbed_official 155:8435094ec241 410
mbed_official 155:8435094ec241 411 if(status == FLASH_COMPLETE)
mbed_official 155:8435094ec241 412 {
mbed_official 155:8435094ec241 413 /* If the previous operation is completed, proceed to program the new data */
mbed_official 155:8435094ec241 414 FLASH->CR |= FLASH_CR_PG;
mbed_official 155:8435094ec241 415
mbed_official 155:8435094ec241 416 *(__IO uint16_t*)Address = Data;
mbed_official 155:8435094ec241 417
mbed_official 155:8435094ec241 418 /* Wait for last operation to be completed */
mbed_official 155:8435094ec241 419 status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);
mbed_official 155:8435094ec241 420
mbed_official 155:8435094ec241 421 /* Disable the PG Bit */
mbed_official 155:8435094ec241 422 FLASH->CR &= ~FLASH_CR_PG;
mbed_official 155:8435094ec241 423 }
mbed_official 155:8435094ec241 424
mbed_official 155:8435094ec241 425 /* Return the Program Status */
mbed_official 155:8435094ec241 426 return status;
mbed_official 155:8435094ec241 427 }
mbed_official 155:8435094ec241 428
mbed_official 155:8435094ec241 429 /**
mbed_official 155:8435094ec241 430 * @}
mbed_official 155:8435094ec241 431 */
mbed_official 155:8435094ec241 432
mbed_official 155:8435094ec241 433 /** @defgroup FLASH_Group3 Option Bytes Programming functions
mbed_official 155:8435094ec241 434 * @brief Option Bytes Programming functions
mbed_official 155:8435094ec241 435 *
mbed_official 155:8435094ec241 436 @verbatim
mbed_official 155:8435094ec241 437 ===============================================================================
mbed_official 155:8435094ec241 438 ##### Option Bytes Programming functions #####
mbed_official 155:8435094ec241 439 ===============================================================================
mbed_official 155:8435094ec241 440 [..] This group includes the following functions:
mbed_official 155:8435094ec241 441 (+) void FLASH_OB_Unlock(void);
mbed_official 155:8435094ec241 442 (+) void FLASH_OB_Lock(void);
mbed_official 155:8435094ec241 443 (+) void FLASH_OB_Erase(void);
mbed_official 155:8435094ec241 444 (+) FLASH_Status FLASH_OB_WRPConfig(uint32_t OB_WRP, FunctionalState NewState);
mbed_official 155:8435094ec241 445 (+) FLASH_Status FLASH_OB_RDPConfig(uint8_t OB_RDP);
mbed_official 155:8435094ec241 446 (+) FLASH_Status FLASH_OB_UserConfig(uint8_t OB_IWDG, uint8_t OB_STOP, uint8_t OB_STDBY);
mbed_official 155:8435094ec241 447 (+) FLASH_Status FLASH_OB_BOOTConfig(uint8_t OB_BOOT1);
mbed_official 155:8435094ec241 448 (+) FLASH_Status FLASH_OB_VDDAConfig(uint8_t OB_VDDA_ANALOG);
mbed_official 155:8435094ec241 449 (+) FLASH_Status FLASH_OB_SRMParityConfig(uint8_t OB_SRAM_Parity);
mbed_official 155:8435094ec241 450 (+) FLASH_Status FLASH_OB_WriteUser(uint8_t OB_USER);
mbed_official 155:8435094ec241 451 (+) FLASH_Status FLASH_OB_Launch(void);
mbed_official 155:8435094ec241 452 (+) uint32_t FLASH_OB_GetUser(void);
mbed_official 155:8435094ec241 453 (+) uint8_t FLASH_OB_GetWRP(void);
mbed_official 155:8435094ec241 454 (+) uint8_t FLASH_OB_GetRDP(void);
mbed_official 155:8435094ec241 455 [..] Any operation of erase or program should follow these steps:
mbed_official 155:8435094ec241 456 (#) Call the FLASH_OB_Unlock() function to enable the FLASH option control
mbed_official 155:8435094ec241 457 register access.
mbed_official 155:8435094ec241 458 (#) Call one or several functions to program the desired Option Bytes:
mbed_official 155:8435094ec241 459 (++) void FLASH_OB_WRPConfig(uint32_t OB_WRP, FunctionalState NewState);
mbed_official 155:8435094ec241 460 => to Enable/Disable the desired sector write protection.
mbed_official 155:8435094ec241 461 (++) FLASH_Status FLASH_OB_RDPConfig(uint8_t OB_RDP) => to set the
mbed_official 155:8435094ec241 462 desired read Protection Level.
mbed_official 155:8435094ec241 463 (++) FLASH_Status FLASH_OB_UserConfig(uint8_t OB_IWDG, uint8_t OB_STOP, uint8_t OB_STDBY);
mbed_official 155:8435094ec241 464 => to configure the user Option Bytes.
mbed_official 155:8435094ec241 465 (++) FLASH_Status FLASH_OB_BOOTConfig(uint8_t OB_BOOT1);
mbed_official 155:8435094ec241 466 => to set the boot1 mode
mbed_official 155:8435094ec241 467 (++) FLASH_Status FLASH_OB_VDDAConfig(uint8_t OB_VDDA_ANALOG);
mbed_official 155:8435094ec241 468 => to Enable/Disable the VDDA monotoring.
mbed_official 155:8435094ec241 469 (++) FLASH_Status FLASH_OB_SRMParityConfig(uint8_t OB_SRAM_Parity);
mbed_official 155:8435094ec241 470 => to Enable/Disable the SRAM Parity check.
mbed_official 155:8435094ec241 471 (++) FLASH_Status FLASH_OB_WriteUser(uint8_t OB_USER);
mbed_official 155:8435094ec241 472 => to write all user option bytes: OB_IWDG, OB_STOP, OB_STDBY,
mbed_official 155:8435094ec241 473 OB_BOOT1, OB_VDDA_ANALOG and OB_VDD_SD12.
mbed_official 155:8435094ec241 474 (#) Once all needed Option Bytes to be programmed are correctly written,
mbed_official 155:8435094ec241 475 call the FLASH_OB_Launch() function to launch the Option Bytes
mbed_official 155:8435094ec241 476 programming process.
mbed_official 155:8435094ec241 477 (#@) When changing the IWDG mode from HW to SW or from SW to HW, a system
mbed_official 155:8435094ec241 478 reset is needed to make the change effective.
mbed_official 155:8435094ec241 479 (#) Call the FLASH_OB_Lock() function to disable the FLASH option control
mbed_official 155:8435094ec241 480 register access (recommended to protect the Option Bytes against
mbed_official 155:8435094ec241 481 possible unwanted operations).
mbed_official 155:8435094ec241 482
mbed_official 155:8435094ec241 483 @endverbatim
mbed_official 155:8435094ec241 484 * @{
mbed_official 155:8435094ec241 485 */
mbed_official 155:8435094ec241 486
mbed_official 155:8435094ec241 487 /**
mbed_official 155:8435094ec241 488 * @brief Unlocks the option bytes block access.
mbed_official 155:8435094ec241 489 * @param None
mbed_official 155:8435094ec241 490 * @retval None
mbed_official 155:8435094ec241 491 */
mbed_official 155:8435094ec241 492 void FLASH_OB_Unlock(void)
mbed_official 155:8435094ec241 493 {
mbed_official 155:8435094ec241 494 if((FLASH->CR & FLASH_CR_OPTWRE) == RESET)
mbed_official 155:8435094ec241 495 {
mbed_official 155:8435094ec241 496 /* Unlocking the option bytes block access */
mbed_official 155:8435094ec241 497 FLASH->OPTKEYR = FLASH_OPTKEY1;
mbed_official 155:8435094ec241 498 FLASH->OPTKEYR = FLASH_OPTKEY2;
mbed_official 155:8435094ec241 499 }
mbed_official 155:8435094ec241 500 }
mbed_official 155:8435094ec241 501
mbed_official 155:8435094ec241 502 /**
mbed_official 155:8435094ec241 503 * @brief Locks the option bytes block access.
mbed_official 155:8435094ec241 504 * @param None
mbed_official 155:8435094ec241 505 * @retval None
mbed_official 155:8435094ec241 506 */
mbed_official 155:8435094ec241 507 void FLASH_OB_Lock(void)
mbed_official 155:8435094ec241 508 {
mbed_official 155:8435094ec241 509 /* Set the OPTWREN Bit to lock the option bytes block access */
mbed_official 155:8435094ec241 510 FLASH->CR &= ~FLASH_CR_OPTWRE;
mbed_official 155:8435094ec241 511 }
mbed_official 155:8435094ec241 512
mbed_official 155:8435094ec241 513 /**
mbed_official 155:8435094ec241 514 * @brief Launch the option byte loading.
mbed_official 155:8435094ec241 515 * @param None
mbed_official 155:8435094ec241 516 * @retval None
mbed_official 155:8435094ec241 517 */
mbed_official 155:8435094ec241 518 void FLASH_OB_Launch(void)
mbed_official 155:8435094ec241 519 {
mbed_official 155:8435094ec241 520 /* Set the OBL_Launch bit to launch the option byte loading */
mbed_official 155:8435094ec241 521 FLASH->CR |= FLASH_CR_OBL_LAUNCH;
mbed_official 155:8435094ec241 522 }
mbed_official 155:8435094ec241 523
mbed_official 155:8435094ec241 524 /**
mbed_official 155:8435094ec241 525 * @brief Erases the FLASH option bytes.
mbed_official 155:8435094ec241 526 * @note This functions erases all option bytes except the Read protection (RDP).
mbed_official 155:8435094ec241 527 * @param None
mbed_official 155:8435094ec241 528 * @retval FLASH Status: The returned value can be: FLASH_ERROR_PG,
mbed_official 155:8435094ec241 529 * FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
mbed_official 155:8435094ec241 530 */
mbed_official 155:8435094ec241 531 FLASH_Status FLASH_OB_Erase(void)
mbed_official 155:8435094ec241 532 {
mbed_official 155:8435094ec241 533 uint16_t rdptmp = OB_RDP_Level_0;
mbed_official 155:8435094ec241 534
mbed_official 155:8435094ec241 535 FLASH_Status status = FLASH_COMPLETE;
mbed_official 155:8435094ec241 536
mbed_official 155:8435094ec241 537 /* Get the actual read protection Option Byte value */
mbed_official 155:8435094ec241 538 if(FLASH_OB_GetRDP() != RESET)
mbed_official 155:8435094ec241 539 {
mbed_official 155:8435094ec241 540 rdptmp = 0x00;
mbed_official 155:8435094ec241 541 }
mbed_official 155:8435094ec241 542
mbed_official 155:8435094ec241 543 /* Wait for last operation to be completed */
mbed_official 155:8435094ec241 544 status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);
mbed_official 155:8435094ec241 545
mbed_official 155:8435094ec241 546 if(status == FLASH_COMPLETE)
mbed_official 155:8435094ec241 547 {
mbed_official 155:8435094ec241 548 /* If the previous operation is completed, proceed to erase the option bytes */
mbed_official 155:8435094ec241 549 FLASH->CR |= FLASH_CR_OPTER;
mbed_official 155:8435094ec241 550 FLASH->CR |= FLASH_CR_STRT;
mbed_official 155:8435094ec241 551
mbed_official 155:8435094ec241 552 /* Wait for last operation to be completed */
mbed_official 155:8435094ec241 553 status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);
mbed_official 155:8435094ec241 554
mbed_official 155:8435094ec241 555 if(status == FLASH_COMPLETE)
mbed_official 155:8435094ec241 556 {
mbed_official 155:8435094ec241 557 /* If the erase operation is completed, disable the OPTER Bit */
mbed_official 155:8435094ec241 558 FLASH->CR &= ~FLASH_CR_OPTER;
mbed_official 155:8435094ec241 559
mbed_official 155:8435094ec241 560 /* Enable the Option Bytes Programming operation */
mbed_official 155:8435094ec241 561 FLASH->CR |= FLASH_CR_OPTPG;
mbed_official 155:8435094ec241 562
mbed_official 155:8435094ec241 563 /* Restore the last read protection Option Byte value */
mbed_official 155:8435094ec241 564 OB->RDP = (uint16_t)rdptmp;
mbed_official 155:8435094ec241 565
mbed_official 155:8435094ec241 566 /* Wait for last operation to be completed */
mbed_official 155:8435094ec241 567 status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);
mbed_official 155:8435094ec241 568
mbed_official 155:8435094ec241 569 if(status != FLASH_TIMEOUT)
mbed_official 155:8435094ec241 570 {
mbed_official 155:8435094ec241 571 /* if the program operation is completed, disable the OPTPG Bit */
mbed_official 155:8435094ec241 572 FLASH->CR &= ~FLASH_CR_OPTPG;
mbed_official 155:8435094ec241 573 }
mbed_official 155:8435094ec241 574 }
mbed_official 155:8435094ec241 575 else
mbed_official 155:8435094ec241 576 {
mbed_official 155:8435094ec241 577 if (status != FLASH_TIMEOUT)
mbed_official 155:8435094ec241 578 {
mbed_official 155:8435094ec241 579 /* Disable the OPTPG Bit */
mbed_official 155:8435094ec241 580 FLASH->CR &= ~FLASH_CR_OPTPG;
mbed_official 155:8435094ec241 581 }
mbed_official 155:8435094ec241 582 }
mbed_official 155:8435094ec241 583 }
mbed_official 155:8435094ec241 584 /* Return the erase status */
mbed_official 155:8435094ec241 585 return status;
mbed_official 155:8435094ec241 586 }
mbed_official 155:8435094ec241 587
mbed_official 155:8435094ec241 588 /**
mbed_official 155:8435094ec241 589 * @brief Write protects the desired pages
mbed_official 155:8435094ec241 590 * @note To correctly run this function, the FLASH_OB_Unlock() function
mbed_official 155:8435094ec241 591 * must be called before.
mbed_official 155:8435094ec241 592 * @note Call the FLASH_OB_Lock() to disable the flash control register access and the option bytes
mbed_official 155:8435094ec241 593 * (recommended to protect the FLASH memory against possible unwanted operation)
mbed_official 155:8435094ec241 594 * @param OB_WRP: specifies the address of the pages to be write protected.
mbed_official 155:8435094ec241 595 * This parameter can be:
mbed_official 155:8435094ec241 596 * @arg value between OB_WRP_Pages0to35 and OB_WRP_Pages60to63
mbed_official 155:8435094ec241 597 * @arg OB_WRP_AllPages
mbed_official 155:8435094ec241 598 * @retval FLASH Status: The returned value can be:
mbed_official 155:8435094ec241 599 * FLASH_ERROR_PROGRAM, FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
mbed_official 155:8435094ec241 600 */
mbed_official 155:8435094ec241 601 FLASH_Status FLASH_OB_EnableWRP(uint32_t OB_WRP)
mbed_official 155:8435094ec241 602 {
mbed_official 155:8435094ec241 603 uint16_t WRP0_Data = 0xFFFF, WRP1_Data = 0xFFFF;
mbed_official 155:8435094ec241 604
mbed_official 155:8435094ec241 605 FLASH_Status status = FLASH_COMPLETE;
mbed_official 155:8435094ec241 606
mbed_official 155:8435094ec241 607 /* Check the parameters */
mbed_official 155:8435094ec241 608 assert_param(IS_OB_WRP(OB_WRP));
mbed_official 155:8435094ec241 609
mbed_official 155:8435094ec241 610 OB_WRP = (uint32_t)(~OB_WRP);
mbed_official 155:8435094ec241 611 WRP0_Data = (uint16_t)(OB_WRP & OB_WRP0_WRP0);
mbed_official 155:8435094ec241 612 WRP1_Data = (uint16_t)((OB_WRP & OB_WRP0_nWRP0) >> 8);
mbed_official 155:8435094ec241 613
mbed_official 155:8435094ec241 614 /* Wait for last operation to be completed */
mbed_official 155:8435094ec241 615 status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);
mbed_official 155:8435094ec241 616
mbed_official 155:8435094ec241 617 if(status == FLASH_COMPLETE)
mbed_official 155:8435094ec241 618 {
mbed_official 155:8435094ec241 619 FLASH->CR |= FLASH_CR_OPTPG;
mbed_official 155:8435094ec241 620
mbed_official 155:8435094ec241 621 if(WRP0_Data != 0xFF)
mbed_official 155:8435094ec241 622 {
mbed_official 155:8435094ec241 623 OB->WRP0 = WRP0_Data;
mbed_official 155:8435094ec241 624
mbed_official 155:8435094ec241 625 /* Wait for last operation to be completed */
mbed_official 155:8435094ec241 626 status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);
mbed_official 155:8435094ec241 627 }
mbed_official 155:8435094ec241 628 if((status == FLASH_COMPLETE) && (WRP1_Data != 0xFF))
mbed_official 155:8435094ec241 629 {
mbed_official 155:8435094ec241 630 OB->WRP1 = WRP1_Data;
mbed_official 155:8435094ec241 631
mbed_official 155:8435094ec241 632 /* Wait for last operation to be completed */
mbed_official 155:8435094ec241 633 status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);
mbed_official 155:8435094ec241 634 }
mbed_official 155:8435094ec241 635 if(status != FLASH_TIMEOUT)
mbed_official 155:8435094ec241 636 {
mbed_official 155:8435094ec241 637 /* if the program operation is completed, disable the OPTPG Bit */
mbed_official 155:8435094ec241 638 FLASH->CR &= ~FLASH_CR_OPTPG;
mbed_official 155:8435094ec241 639 }
mbed_official 155:8435094ec241 640 }
mbed_official 155:8435094ec241 641 /* Return the write protection operation Status */
mbed_official 155:8435094ec241 642 return status;
mbed_official 155:8435094ec241 643 }
mbed_official 155:8435094ec241 644
mbed_official 155:8435094ec241 645 /**
mbed_official 155:8435094ec241 646 * @brief Enables or disables the read out protection.
mbed_official 155:8435094ec241 647 * @note To correctly run this function, the FLASH_OB_Unlock() function
mbed_official 155:8435094ec241 648 * must be called before.
mbed_official 155:8435094ec241 649 * @note Call the FLASH_OB_Lock() to disable the flash control register access and the option bytes
mbed_official 155:8435094ec241 650 * (recommended to protect the FLASH memory against possible unwanted operation)
mbed_official 155:8435094ec241 651 * @param FLASH_ReadProtection_Level: specifies the read protection level.
mbed_official 155:8435094ec241 652 * This parameter can be:
mbed_official 155:8435094ec241 653 * @arg OB_RDP_Level_0: No protection
mbed_official 155:8435094ec241 654 * @arg OB_RDP_Level_1: Read protection of the memory
mbed_official 155:8435094ec241 655 * @arg OB_RDP_Level_2: Chip protection
mbed_official 155:8435094ec241 656 * @retval FLASH Status: The returned value can be:
mbed_official 155:8435094ec241 657 * FLASH_ERROR_PROGRAM, FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
mbed_official 155:8435094ec241 658 */
mbed_official 155:8435094ec241 659 FLASH_Status FLASH_OB_RDPConfig(uint8_t OB_RDP)
mbed_official 155:8435094ec241 660 {
mbed_official 155:8435094ec241 661 FLASH_Status status = FLASH_COMPLETE;
mbed_official 155:8435094ec241 662
mbed_official 155:8435094ec241 663 /* Check the parameters */
mbed_official 155:8435094ec241 664 assert_param(IS_OB_RDP(OB_RDP));
mbed_official 155:8435094ec241 665 status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);
mbed_official 155:8435094ec241 666
mbed_official 155:8435094ec241 667 if(status == FLASH_COMPLETE)
mbed_official 155:8435094ec241 668 {
mbed_official 155:8435094ec241 669 FLASH->CR |= FLASH_CR_OPTER;
mbed_official 155:8435094ec241 670 FLASH->CR |= FLASH_CR_STRT;
mbed_official 155:8435094ec241 671
mbed_official 155:8435094ec241 672 /* Wait for last operation to be completed */
mbed_official 155:8435094ec241 673 status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);
mbed_official 155:8435094ec241 674
mbed_official 155:8435094ec241 675 if(status == FLASH_COMPLETE)
mbed_official 155:8435094ec241 676 {
mbed_official 155:8435094ec241 677 /* If the erase operation is completed, disable the OPTER Bit */
mbed_official 155:8435094ec241 678 FLASH->CR &= ~FLASH_CR_OPTER;
mbed_official 155:8435094ec241 679
mbed_official 155:8435094ec241 680 /* Enable the Option Bytes Programming operation */
mbed_official 155:8435094ec241 681 FLASH->CR |= FLASH_CR_OPTPG;
mbed_official 155:8435094ec241 682
mbed_official 155:8435094ec241 683 OB->RDP = OB_RDP;
mbed_official 155:8435094ec241 684
mbed_official 155:8435094ec241 685 /* Wait for last operation to be completed */
mbed_official 155:8435094ec241 686 status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);
mbed_official 155:8435094ec241 687
mbed_official 155:8435094ec241 688 if(status != FLASH_TIMEOUT)
mbed_official 155:8435094ec241 689 {
mbed_official 155:8435094ec241 690 /* if the program operation is completed, disable the OPTPG Bit */
mbed_official 155:8435094ec241 691 FLASH->CR &= ~FLASH_CR_OPTPG;
mbed_official 155:8435094ec241 692 }
mbed_official 155:8435094ec241 693 }
mbed_official 155:8435094ec241 694 else
mbed_official 155:8435094ec241 695 {
mbed_official 155:8435094ec241 696 if(status != FLASH_TIMEOUT)
mbed_official 155:8435094ec241 697 {
mbed_official 155:8435094ec241 698 /* Disable the OPTER Bit */
mbed_official 155:8435094ec241 699 FLASH->CR &= ~FLASH_CR_OPTER;
mbed_official 155:8435094ec241 700 }
mbed_official 155:8435094ec241 701 }
mbed_official 155:8435094ec241 702 }
mbed_official 155:8435094ec241 703 /* Return the protection operation Status */
mbed_official 155:8435094ec241 704 return status;
mbed_official 155:8435094ec241 705 }
mbed_official 155:8435094ec241 706
mbed_official 155:8435094ec241 707 /**
mbed_official 155:8435094ec241 708 * @brief Programs the FLASH User Option Byte: IWDG_SW / RST_STOP / RST_STDBY.
mbed_official 155:8435094ec241 709 * @param OB_IWDG: Selects the IWDG mode
mbed_official 155:8435094ec241 710 * This parameter can be one of the following values:
mbed_official 155:8435094ec241 711 * @arg OB_IWDG_SW: Software IWDG selected
mbed_official 155:8435094ec241 712 * @arg OB_IWDG_HW: Hardware IWDG selected
mbed_official 155:8435094ec241 713 * @param OB_STOP: Reset event when entering STOP mode.
mbed_official 155:8435094ec241 714 * This parameter can be one of the following values:
mbed_official 155:8435094ec241 715 * @arg OB_STOP_NoRST: No reset generated when entering in STOP
mbed_official 155:8435094ec241 716 * @arg OB_STOP_RST: Reset generated when entering in STOP
mbed_official 155:8435094ec241 717 * @param OB_STDBY: Reset event when entering Standby mode.
mbed_official 155:8435094ec241 718 * This parameter can be one of the following values:
mbed_official 155:8435094ec241 719 * @arg OB_STDBY_NoRST: No reset generated when entering in STANDBY
mbed_official 155:8435094ec241 720 * @arg OB_STDBY_RST: Reset generated when entering in STANDBY
mbed_official 155:8435094ec241 721 * @retval FLASH Status: The returned value can be: FLASH_ERROR_PG,
mbed_official 155:8435094ec241 722 * FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
mbed_official 155:8435094ec241 723 */
mbed_official 155:8435094ec241 724 FLASH_Status FLASH_OB_UserConfig(uint8_t OB_IWDG, uint8_t OB_STOP, uint8_t OB_STDBY)
mbed_official 155:8435094ec241 725 {
mbed_official 155:8435094ec241 726 FLASH_Status status = FLASH_COMPLETE;
mbed_official 155:8435094ec241 727
mbed_official 155:8435094ec241 728 /* Check the parameters */
mbed_official 155:8435094ec241 729 assert_param(IS_OB_IWDG_SOURCE(OB_IWDG));
mbed_official 155:8435094ec241 730 assert_param(IS_OB_STOP_SOURCE(OB_STOP));
mbed_official 155:8435094ec241 731 assert_param(IS_OB_STDBY_SOURCE(OB_STDBY));
mbed_official 155:8435094ec241 732
mbed_official 155:8435094ec241 733 /* Authorize the small information block programming */
mbed_official 155:8435094ec241 734 FLASH->OPTKEYR = FLASH_KEY1;
mbed_official 155:8435094ec241 735 FLASH->OPTKEYR = FLASH_KEY2;
mbed_official 155:8435094ec241 736
mbed_official 155:8435094ec241 737 /* Wait for last operation to be completed */
mbed_official 155:8435094ec241 738 status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);
mbed_official 155:8435094ec241 739
mbed_official 155:8435094ec241 740 if(status == FLASH_COMPLETE)
mbed_official 155:8435094ec241 741 {
mbed_official 155:8435094ec241 742 /* Enable the Option Bytes Programming operation */
mbed_official 155:8435094ec241 743 FLASH->CR |= FLASH_CR_OPTPG;
mbed_official 155:8435094ec241 744
mbed_official 155:8435094ec241 745 OB->USER = (uint8_t)((uint8_t)(OB_IWDG | OB_STOP) | (uint8_t)(OB_STDBY |0xF8));
mbed_official 155:8435094ec241 746
mbed_official 155:8435094ec241 747 /* Wait for last operation to be completed */
mbed_official 155:8435094ec241 748 status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);
mbed_official 155:8435094ec241 749
mbed_official 155:8435094ec241 750 if(status != FLASH_TIMEOUT)
mbed_official 155:8435094ec241 751 {
mbed_official 155:8435094ec241 752 /* if the program operation is completed, disable the OPTPG Bit */
mbed_official 155:8435094ec241 753 FLASH->CR &= ~FLASH_CR_OPTPG;
mbed_official 155:8435094ec241 754 }
mbed_official 155:8435094ec241 755 }
mbed_official 155:8435094ec241 756 /* Return the Option Byte program Status */
mbed_official 155:8435094ec241 757 return status;
mbed_official 155:8435094ec241 758 }
mbed_official 155:8435094ec241 759
mbed_official 155:8435094ec241 760 /**
mbed_official 155:8435094ec241 761 * @brief Sets or resets the BOOT1.
mbed_official 155:8435094ec241 762 * @param OB_BOOT1: Set or Reset the BOOT1.
mbed_official 155:8435094ec241 763 * This parameter can be one of the following values:
mbed_official 155:8435094ec241 764 * @arg OB_BOOT1_RESET: BOOT1 Reset
mbed_official 155:8435094ec241 765 * @arg OB_BOOT1_SET: BOOT1 Set
mbed_official 155:8435094ec241 766 * @retval None
mbed_official 155:8435094ec241 767 */
mbed_official 155:8435094ec241 768 FLASH_Status FLASH_OB_BOOTConfig(uint8_t OB_BOOT1)
mbed_official 155:8435094ec241 769 {
mbed_official 155:8435094ec241 770 FLASH_Status status = FLASH_COMPLETE;
mbed_official 155:8435094ec241 771
mbed_official 155:8435094ec241 772 /* Check the parameters */
mbed_official 155:8435094ec241 773 assert_param(IS_OB_BOOT1(OB_BOOT1));
mbed_official 155:8435094ec241 774
mbed_official 155:8435094ec241 775 /* Authorize the small information block programming */
mbed_official 155:8435094ec241 776 FLASH->OPTKEYR = FLASH_KEY1;
mbed_official 155:8435094ec241 777 FLASH->OPTKEYR = FLASH_KEY2;
mbed_official 155:8435094ec241 778
mbed_official 155:8435094ec241 779 /* Wait for last operation to be completed */
mbed_official 155:8435094ec241 780 status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);
mbed_official 155:8435094ec241 781
mbed_official 155:8435094ec241 782 if(status == FLASH_COMPLETE)
mbed_official 155:8435094ec241 783 {
mbed_official 155:8435094ec241 784 /* Enable the Option Bytes Programming operation */
mbed_official 155:8435094ec241 785 FLASH->CR |= FLASH_CR_OPTPG;
mbed_official 155:8435094ec241 786
mbed_official 155:8435094ec241 787 OB->USER = OB_BOOT1|0xEF;
mbed_official 155:8435094ec241 788
mbed_official 155:8435094ec241 789 /* Wait for last operation to be completed */
mbed_official 155:8435094ec241 790 status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);
mbed_official 155:8435094ec241 791
mbed_official 155:8435094ec241 792 if(status != FLASH_TIMEOUT)
mbed_official 155:8435094ec241 793 {
mbed_official 155:8435094ec241 794 /* if the program operation is completed, disable the OPTPG Bit */
mbed_official 155:8435094ec241 795 FLASH->CR &= ~FLASH_CR_OPTPG;
mbed_official 155:8435094ec241 796 }
mbed_official 155:8435094ec241 797 }
mbed_official 155:8435094ec241 798 /* Return the Option Byte program Status */
mbed_official 155:8435094ec241 799 return status;
mbed_official 155:8435094ec241 800 }
mbed_official 155:8435094ec241 801
mbed_official 155:8435094ec241 802 /**
mbed_official 155:8435094ec241 803 * @brief Sets or resets the analogue monitoring on VDDA Power source.
mbed_official 155:8435094ec241 804 * @param OB_VDDA_ANALOG: Selects the analog monitoring on VDDA Power source.
mbed_official 155:8435094ec241 805 * This parameter can be one of the following values:
mbed_official 155:8435094ec241 806 * @arg OB_VDDA_ANALOG_ON: Analog monitoring on VDDA Power source ON
mbed_official 155:8435094ec241 807 * @arg OB_VDDA_ANALOG_OFF: Analog monitoring on VDDA Power source OFF
mbed_official 155:8435094ec241 808 * @retval None
mbed_official 155:8435094ec241 809 */
mbed_official 155:8435094ec241 810 FLASH_Status FLASH_OB_VDDAConfig(uint8_t OB_VDDA_ANALOG)
mbed_official 155:8435094ec241 811 {
mbed_official 155:8435094ec241 812 FLASH_Status status = FLASH_COMPLETE;
mbed_official 155:8435094ec241 813
mbed_official 155:8435094ec241 814 /* Check the parameters */
mbed_official 155:8435094ec241 815 assert_param(IS_OB_VDDA_ANALOG(OB_VDDA_ANALOG));
mbed_official 155:8435094ec241 816
mbed_official 155:8435094ec241 817 /* Authorize the small information block programming */
mbed_official 155:8435094ec241 818 FLASH->OPTKEYR = FLASH_KEY1;
mbed_official 155:8435094ec241 819 FLASH->OPTKEYR = FLASH_KEY2;
mbed_official 155:8435094ec241 820
mbed_official 155:8435094ec241 821 /* Wait for last operation to be completed */
mbed_official 155:8435094ec241 822 status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);
mbed_official 155:8435094ec241 823
mbed_official 155:8435094ec241 824 if(status == FLASH_COMPLETE)
mbed_official 155:8435094ec241 825 {
mbed_official 155:8435094ec241 826 /* Enable the Option Bytes Programming operation */
mbed_official 155:8435094ec241 827 FLASH->CR |= FLASH_CR_OPTPG;
mbed_official 155:8435094ec241 828
mbed_official 155:8435094ec241 829 OB->USER = OB_VDDA_ANALOG |0xDF;
mbed_official 155:8435094ec241 830
mbed_official 155:8435094ec241 831 /* Wait for last operation to be completed */
mbed_official 155:8435094ec241 832 status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);
mbed_official 155:8435094ec241 833
mbed_official 155:8435094ec241 834 if(status != FLASH_TIMEOUT)
mbed_official 155:8435094ec241 835 {
mbed_official 155:8435094ec241 836 /* if the program operation is completed, disable the OPTPG Bit */
mbed_official 155:8435094ec241 837 FLASH->CR &= ~FLASH_CR_OPTPG;
mbed_official 155:8435094ec241 838 }
mbed_official 155:8435094ec241 839 }
mbed_official 155:8435094ec241 840 /* Return the Option Byte program Status */
mbed_official 155:8435094ec241 841 return status;
mbed_official 155:8435094ec241 842 }
mbed_official 155:8435094ec241 843
mbed_official 155:8435094ec241 844 /**
mbed_official 155:8435094ec241 845 * @brief Sets or resets the SRAM partiy.
mbed_official 155:8435094ec241 846 * @param OB_SRAM_Parity: Set or Reset the SRAM partiy enable bit.
mbed_official 155:8435094ec241 847 * This parameter can be one of the following values:
mbed_official 155:8435094ec241 848 * @arg OB_SRAM_PARITY_SET: Set SRAM partiy.
mbed_official 155:8435094ec241 849 * @arg OB_SRAM_PARITY_RESET: Reset SRAM partiy.
mbed_official 155:8435094ec241 850 * @retval None
mbed_official 155:8435094ec241 851 */
mbed_official 155:8435094ec241 852 FLASH_Status FLASH_OB_SRAMParityConfig(uint8_t OB_SRAM_Parity)
mbed_official 155:8435094ec241 853 {
mbed_official 155:8435094ec241 854 FLASH_Status status = FLASH_COMPLETE;
mbed_official 155:8435094ec241 855
mbed_official 155:8435094ec241 856 /* Check the parameters */
mbed_official 155:8435094ec241 857 assert_param(IS_OB_SRAM_PARITY(OB_SRAM_Parity));
mbed_official 155:8435094ec241 858
mbed_official 155:8435094ec241 859 /* Wait for last operation to be completed */
mbed_official 155:8435094ec241 860 status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);
mbed_official 155:8435094ec241 861
mbed_official 155:8435094ec241 862 if(status == FLASH_COMPLETE)
mbed_official 155:8435094ec241 863 {
mbed_official 155:8435094ec241 864 /* Enable the Option Bytes Programming operation */
mbed_official 155:8435094ec241 865 FLASH->CR |= FLASH_CR_OPTPG;
mbed_official 155:8435094ec241 866
mbed_official 155:8435094ec241 867 OB->USER = OB_SRAM_Parity | 0xBF;
mbed_official 155:8435094ec241 868
mbed_official 155:8435094ec241 869 /* Wait for last operation to be completed */
mbed_official 155:8435094ec241 870 status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);
mbed_official 155:8435094ec241 871
mbed_official 155:8435094ec241 872 if(status != FLASH_TIMEOUT)
mbed_official 155:8435094ec241 873 {
mbed_official 155:8435094ec241 874 /* if the program operation is completed, disable the OPTPG Bit */
mbed_official 155:8435094ec241 875 FLASH->CR &= ~FLASH_CR_OPTPG;
mbed_official 155:8435094ec241 876 }
mbed_official 155:8435094ec241 877 }
mbed_official 155:8435094ec241 878 /* Return the Option Byte program Status */
mbed_official 155:8435094ec241 879 return status;
mbed_official 155:8435094ec241 880 }
mbed_official 155:8435094ec241 881
mbed_official 155:8435094ec241 882 /**
mbed_official 155:8435094ec241 883 * @brief Programs the FLASH User Option Byte: IWDG_SW / RST_STOP / RST_STDBY/ BOOT1 and OB_VDDA_ANALOG.
mbed_official 155:8435094ec241 884 * @note To correctly run this function, the FLASH_OB_Unlock() function
mbed_official 155:8435094ec241 885 * must be called before.
mbed_official 155:8435094ec241 886 * @note Call the FLASH_OB_Lock() to disable the flash control register access and the option bytes
mbed_official 155:8435094ec241 887 * (recommended to protect the FLASH memory against possible unwanted operation)
mbed_official 155:8435094ec241 888 * @param OB_USER: Selects all user option bytes
mbed_official 155:8435094ec241 889 * This parameter is a combination of the following values:
mbed_official 155:8435094ec241 890 * @arg OB_IWDG_SW / OB_IWDG_HW: Software / Hardware WDG selected
mbed_official 155:8435094ec241 891 * @arg OB_STOP_NoRST / OB_STOP_RST: No reset / Reset generated when entering in STOP
mbed_official 155:8435094ec241 892 * @arg OB_STDBY_NoRST / OB_STDBY_RST: No reset / Reset generated when entering in STANDBY
mbed_official 155:8435094ec241 893 * @arg OB_BOOT1_RESET / OB_BOOT1_SET: BOOT1 Reset / Set
mbed_official 155:8435094ec241 894 * @arg OB_VDDA_ANALOG_ON / OB_VDDA_ANALOG_OFF: Analog monitoring on VDDA Power source ON / OFF
mbed_official 155:8435094ec241 895 * @retval FLASH Status: The returned value can be:
mbed_official 155:8435094ec241 896 * FLASH_ERROR_PROGRAM, FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
mbed_official 155:8435094ec241 897 */
mbed_official 155:8435094ec241 898 FLASH_Status FLASH_OB_WriteUser(uint8_t OB_USER)
mbed_official 155:8435094ec241 899 {
mbed_official 155:8435094ec241 900 FLASH_Status status = FLASH_COMPLETE;
mbed_official 155:8435094ec241 901
mbed_official 155:8435094ec241 902 /* Authorize the small information block programming */
mbed_official 155:8435094ec241 903 FLASH->OPTKEYR = FLASH_KEY1;
mbed_official 155:8435094ec241 904 FLASH->OPTKEYR = FLASH_KEY2;
mbed_official 155:8435094ec241 905
mbed_official 155:8435094ec241 906 /* Wait for last operation to be completed */
mbed_official 155:8435094ec241 907 status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);
mbed_official 155:8435094ec241 908
mbed_official 155:8435094ec241 909 if(status == FLASH_COMPLETE)
mbed_official 155:8435094ec241 910 {
mbed_official 155:8435094ec241 911 /* Enable the Option Bytes Programming operation */
mbed_official 155:8435094ec241 912 FLASH->CR |= FLASH_CR_OPTPG;
mbed_official 155:8435094ec241 913
mbed_official 155:8435094ec241 914 OB->USER = OB_USER | 0x88;
mbed_official 155:8435094ec241 915
mbed_official 155:8435094ec241 916 /* Wait for last operation to be completed */
mbed_official 155:8435094ec241 917 status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);
mbed_official 155:8435094ec241 918
mbed_official 155:8435094ec241 919 if(status != FLASH_TIMEOUT)
mbed_official 155:8435094ec241 920 {
mbed_official 155:8435094ec241 921 /* if the program operation is completed, disable the OPTPG Bit */
mbed_official 155:8435094ec241 922 FLASH->CR &= ~FLASH_CR_OPTPG;
mbed_official 155:8435094ec241 923 }
mbed_official 155:8435094ec241 924 }
mbed_official 155:8435094ec241 925 /* Return the Option Byte program Status */
mbed_official 155:8435094ec241 926 return status;
mbed_official 155:8435094ec241 927
mbed_official 155:8435094ec241 928 }
mbed_official 155:8435094ec241 929
mbed_official 155:8435094ec241 930 /**
mbed_official 155:8435094ec241 931 * @brief Programs a half word at a specified Option Byte Data address.
mbed_official 155:8435094ec241 932 * @note To correctly run this function, the FLASH_OB_Unlock() function
mbed_official 155:8435094ec241 933 * must be called before.
mbed_official 155:8435094ec241 934 * Call the FLASH_OB_Lock() to disable the flash control register access and the option bytes
mbed_official 155:8435094ec241 935 * (recommended to protect the FLASH memory against possible unwanted operation)
mbed_official 155:8435094ec241 936 * @param Address: specifies the address to be programmed.
mbed_official 155:8435094ec241 937 * This parameter can be 0x1FFFF804 or 0x1FFFF806.
mbed_official 155:8435094ec241 938 * @param Data: specifies the data to be programmed.
mbed_official 155:8435094ec241 939 * @retval FLASH Status: The returned value can be: FLASH_ERROR_PG,
mbed_official 155:8435094ec241 940 * FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
mbed_official 155:8435094ec241 941 */
mbed_official 155:8435094ec241 942 FLASH_Status FLASH_ProgramOptionByteData(uint32_t Address, uint8_t Data)
mbed_official 155:8435094ec241 943 {
mbed_official 155:8435094ec241 944 FLASH_Status status = FLASH_COMPLETE;
mbed_official 155:8435094ec241 945 /* Check the parameters */
mbed_official 155:8435094ec241 946 assert_param(IS_OB_DATA_ADDRESS(Address));
mbed_official 155:8435094ec241 947 status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);
mbed_official 155:8435094ec241 948
mbed_official 155:8435094ec241 949 if(status == FLASH_COMPLETE)
mbed_official 155:8435094ec241 950 {
mbed_official 155:8435094ec241 951 /* Enables the Option Bytes Programming operation */
mbed_official 155:8435094ec241 952 FLASH->CR |= FLASH_CR_OPTPG;
mbed_official 155:8435094ec241 953 *(__IO uint16_t*)Address = Data;
mbed_official 155:8435094ec241 954
mbed_official 155:8435094ec241 955 /* Wait for last operation to be completed */
mbed_official 155:8435094ec241 956 status = FLASH_WaitForLastOperation(FLASH_ER_PRG_TIMEOUT);
mbed_official 155:8435094ec241 957
mbed_official 155:8435094ec241 958 if(status != FLASH_TIMEOUT)
mbed_official 155:8435094ec241 959 {
mbed_official 155:8435094ec241 960 /* If the program operation is completed, disable the OPTPG Bit */
mbed_official 155:8435094ec241 961 FLASH->CR &= ~FLASH_CR_OPTPG;
mbed_official 155:8435094ec241 962 }
mbed_official 155:8435094ec241 963 }
mbed_official 155:8435094ec241 964 /* Return the Option Byte Data Program Status */
mbed_official 155:8435094ec241 965 return status;
mbed_official 155:8435094ec241 966 }
mbed_official 155:8435094ec241 967
mbed_official 155:8435094ec241 968 /**
mbed_official 155:8435094ec241 969 * @brief Returns the FLASH User Option Bytes values.
mbed_official 155:8435094ec241 970 * @param None
mbed_official 155:8435094ec241 971 * @retval The FLASH User Option Bytes .
mbed_official 155:8435094ec241 972 */
mbed_official 155:8435094ec241 973 uint8_t FLASH_OB_GetUser(void)
mbed_official 155:8435094ec241 974 {
mbed_official 155:8435094ec241 975 /* Return the User Option Byte */
mbed_official 155:8435094ec241 976 return (uint8_t)(FLASH->OBR >> 8);
mbed_official 155:8435094ec241 977 }
mbed_official 155:8435094ec241 978
mbed_official 155:8435094ec241 979 /**
mbed_official 155:8435094ec241 980 * @brief Returns the FLASH Write Protection Option Bytes value.
mbed_official 155:8435094ec241 981 * @param None
mbed_official 155:8435094ec241 982 * @retval The FLASH Write Protection Option Bytes value
mbed_official 155:8435094ec241 983 */
mbed_official 155:8435094ec241 984 uint32_t FLASH_OB_GetWRP(void)
mbed_official 155:8435094ec241 985 {
mbed_official 155:8435094ec241 986 /* Return the FLASH write protection Register value */
mbed_official 155:8435094ec241 987 return (uint32_t)(FLASH->WRPR);
mbed_official 155:8435094ec241 988 }
mbed_official 155:8435094ec241 989
mbed_official 155:8435094ec241 990 /**
mbed_official 155:8435094ec241 991 * @brief Checks whether the FLASH Read out Protection Status is set or not.
mbed_official 155:8435094ec241 992 * @param None
mbed_official 155:8435094ec241 993 * @retval FLASH ReadOut Protection Status(SET or RESET)
mbed_official 155:8435094ec241 994 */
mbed_official 155:8435094ec241 995 FlagStatus FLASH_OB_GetRDP(void)
mbed_official 155:8435094ec241 996 {
mbed_official 155:8435094ec241 997 FlagStatus readstatus = RESET;
mbed_official 155:8435094ec241 998
mbed_official 155:8435094ec241 999 if ((uint8_t)(FLASH->OBR & (FLASH_OBR_RDPRT1 | FLASH_OBR_RDPRT2)) != RESET)
mbed_official 155:8435094ec241 1000 {
mbed_official 155:8435094ec241 1001 readstatus = SET;
mbed_official 155:8435094ec241 1002 }
mbed_official 155:8435094ec241 1003 else
mbed_official 155:8435094ec241 1004 {
mbed_official 155:8435094ec241 1005 readstatus = RESET;
mbed_official 155:8435094ec241 1006 }
mbed_official 155:8435094ec241 1007 return readstatus;
mbed_official 155:8435094ec241 1008 }
mbed_official 155:8435094ec241 1009
mbed_official 155:8435094ec241 1010 /**
mbed_official 155:8435094ec241 1011 * @}
mbed_official 155:8435094ec241 1012 */
mbed_official 155:8435094ec241 1013
mbed_official 155:8435094ec241 1014 /** @defgroup FLASH_Group4 Interrupts and flags management functions
mbed_official 155:8435094ec241 1015 * @brief Interrupts and flags management functions
mbed_official 155:8435094ec241 1016 *
mbed_official 155:8435094ec241 1017 @verbatim
mbed_official 155:8435094ec241 1018 ===============================================================================
mbed_official 155:8435094ec241 1019 ##### Interrupts and flags management functions #####
mbed_official 155:8435094ec241 1020 ===============================================================================
mbed_official 155:8435094ec241 1021
mbed_official 155:8435094ec241 1022 @endverbatim
mbed_official 155:8435094ec241 1023 * @{
mbed_official 155:8435094ec241 1024 */
mbed_official 155:8435094ec241 1025
mbed_official 155:8435094ec241 1026 /**
mbed_official 155:8435094ec241 1027 * @brief Enables or disables the specified FLASH interrupts.
mbed_official 155:8435094ec241 1028 * @param FLASH_IT: specifies the FLASH interrupt sources to be enabled or
mbed_official 155:8435094ec241 1029 * disabled.
mbed_official 155:8435094ec241 1030 * This parameter can be any combination of the following values:
mbed_official 155:8435094ec241 1031 * @arg FLASH_IT_EOP: FLASH end of programming Interrupt
mbed_official 155:8435094ec241 1032 * @arg FLASH_IT_ERR: FLASH Error Interrupt
mbed_official 155:8435094ec241 1033 * @retval None
mbed_official 155:8435094ec241 1034 */
mbed_official 155:8435094ec241 1035 void FLASH_ITConfig(uint32_t FLASH_IT, FunctionalState NewState)
mbed_official 155:8435094ec241 1036 {
mbed_official 155:8435094ec241 1037 /* Check the parameters */
mbed_official 155:8435094ec241 1038 assert_param(IS_FLASH_IT(FLASH_IT));
mbed_official 155:8435094ec241 1039 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 155:8435094ec241 1040
mbed_official 155:8435094ec241 1041 if(NewState != DISABLE)
mbed_official 155:8435094ec241 1042 {
mbed_official 155:8435094ec241 1043 /* Enable the interrupt sources */
mbed_official 155:8435094ec241 1044 FLASH->CR |= FLASH_IT;
mbed_official 155:8435094ec241 1045 }
mbed_official 155:8435094ec241 1046 else
mbed_official 155:8435094ec241 1047 {
mbed_official 155:8435094ec241 1048 /* Disable the interrupt sources */
mbed_official 155:8435094ec241 1049 FLASH->CR &= ~(uint32_t)FLASH_IT;
mbed_official 155:8435094ec241 1050 }
mbed_official 155:8435094ec241 1051 }
mbed_official 155:8435094ec241 1052
mbed_official 155:8435094ec241 1053 /**
mbed_official 155:8435094ec241 1054 * @brief Checks whether the specified FLASH flag is set or not.
mbed_official 155:8435094ec241 1055 * @param FLASH_FLAG: specifies the FLASH flag to check.
mbed_official 155:8435094ec241 1056 * This parameter can be one of the following values:
mbed_official 155:8435094ec241 1057 * @arg FLASH_FLAG_BSY: FLASH write/erase operations in progress flag
mbed_official 155:8435094ec241 1058 * @arg FLASH_FLAG_PGERR: FLASH Programming error flag flag
mbed_official 155:8435094ec241 1059 * @arg FLASH_FLAG_WRPERR: FLASH Write protected error flag
mbed_official 155:8435094ec241 1060 * @arg FLASH_FLAG_EOP: FLASH End of Programming flag
mbed_official 155:8435094ec241 1061 * @retval The new state of FLASH_FLAG (SET or RESET).
mbed_official 155:8435094ec241 1062 */
mbed_official 155:8435094ec241 1063 FlagStatus FLASH_GetFlagStatus(uint32_t FLASH_FLAG)
mbed_official 155:8435094ec241 1064 {
mbed_official 155:8435094ec241 1065 FlagStatus bitstatus = RESET;
mbed_official 155:8435094ec241 1066
mbed_official 155:8435094ec241 1067 /* Check the parameters */
mbed_official 155:8435094ec241 1068 assert_param(IS_FLASH_GET_FLAG(FLASH_FLAG));
mbed_official 155:8435094ec241 1069
mbed_official 155:8435094ec241 1070 if((FLASH->SR & FLASH_FLAG) != (uint32_t)RESET)
mbed_official 155:8435094ec241 1071 {
mbed_official 155:8435094ec241 1072 bitstatus = SET;
mbed_official 155:8435094ec241 1073 }
mbed_official 155:8435094ec241 1074 else
mbed_official 155:8435094ec241 1075 {
mbed_official 155:8435094ec241 1076 bitstatus = RESET;
mbed_official 155:8435094ec241 1077 }
mbed_official 155:8435094ec241 1078 /* Return the new state of FLASH_FLAG (SET or RESET) */
mbed_official 155:8435094ec241 1079 return bitstatus;
mbed_official 155:8435094ec241 1080 }
mbed_official 155:8435094ec241 1081
mbed_official 155:8435094ec241 1082 /**
mbed_official 155:8435094ec241 1083 * @brief Clears the FLASH's pending flags.
mbed_official 155:8435094ec241 1084 * @param FLASH_FLAG: specifies the FLASH flags to clear.
mbed_official 155:8435094ec241 1085 * This parameter can be any combination of the following values:
mbed_official 155:8435094ec241 1086 * @arg FLASH_FLAG_PGERR: FLASH Programming error flag flag
mbed_official 155:8435094ec241 1087 * @arg FLASH_FLAG_WRPERR: FLASH Write protected error flag
mbed_official 155:8435094ec241 1088 * @arg FLASH_FLAG_EOP: FLASH End of Programming flag
mbed_official 155:8435094ec241 1089 * @retval None
mbed_official 155:8435094ec241 1090 */
mbed_official 155:8435094ec241 1091 void FLASH_ClearFlag(uint32_t FLASH_FLAG)
mbed_official 155:8435094ec241 1092 {
mbed_official 155:8435094ec241 1093 /* Check the parameters */
mbed_official 155:8435094ec241 1094 assert_param(IS_FLASH_CLEAR_FLAG(FLASH_FLAG));
mbed_official 155:8435094ec241 1095
mbed_official 155:8435094ec241 1096 /* Clear the flags */
mbed_official 155:8435094ec241 1097 FLASH->SR = FLASH_FLAG;
mbed_official 155:8435094ec241 1098 }
mbed_official 155:8435094ec241 1099
mbed_official 155:8435094ec241 1100 /**
mbed_official 155:8435094ec241 1101 * @brief Returns the FLASH Status.
mbed_official 155:8435094ec241 1102 * @param None
mbed_official 155:8435094ec241 1103 * @retval FLASH Status: The returned value can be:
mbed_official 155:8435094ec241 1104 * FLASH_BUSY, FLASH_ERROR_PROGRAM, FLASH_ERROR_WRP or FLASH_COMPLETE.
mbed_official 155:8435094ec241 1105 */
mbed_official 155:8435094ec241 1106 FLASH_Status FLASH_GetStatus(void)
mbed_official 155:8435094ec241 1107 {
mbed_official 155:8435094ec241 1108 FLASH_Status FLASHstatus = FLASH_COMPLETE;
mbed_official 155:8435094ec241 1109
mbed_official 155:8435094ec241 1110 if((FLASH->SR & FLASH_FLAG_BSY) == FLASH_FLAG_BSY)
mbed_official 155:8435094ec241 1111 {
mbed_official 155:8435094ec241 1112 FLASHstatus = FLASH_BUSY;
mbed_official 155:8435094ec241 1113 }
mbed_official 155:8435094ec241 1114 else
mbed_official 155:8435094ec241 1115 {
mbed_official 155:8435094ec241 1116 if((FLASH->SR & (uint32_t)FLASH_FLAG_WRPERR)!= (uint32_t)0x00)
mbed_official 155:8435094ec241 1117 {
mbed_official 155:8435094ec241 1118 FLASHstatus = FLASH_ERROR_WRP;
mbed_official 155:8435094ec241 1119 }
mbed_official 155:8435094ec241 1120 else
mbed_official 155:8435094ec241 1121 {
mbed_official 155:8435094ec241 1122 if((FLASH->SR & (uint32_t)(FLASH_SR_PGERR)) != (uint32_t)0x00)
mbed_official 155:8435094ec241 1123 {
mbed_official 155:8435094ec241 1124 FLASHstatus = FLASH_ERROR_PROGRAM;
mbed_official 155:8435094ec241 1125 }
mbed_official 155:8435094ec241 1126 else
mbed_official 155:8435094ec241 1127 {
mbed_official 155:8435094ec241 1128 FLASHstatus = FLASH_COMPLETE;
mbed_official 155:8435094ec241 1129 }
mbed_official 155:8435094ec241 1130 }
mbed_official 155:8435094ec241 1131 }
mbed_official 155:8435094ec241 1132 /* Return the FLASH Status */
mbed_official 155:8435094ec241 1133 return FLASHstatus;
mbed_official 155:8435094ec241 1134 }
mbed_official 155:8435094ec241 1135
mbed_official 155:8435094ec241 1136 /**
mbed_official 155:8435094ec241 1137 * @brief Waits for a FLASH operation to complete or a TIMEOUT to occur.
mbed_official 155:8435094ec241 1138 * @param Timeout: FLASH programming Timeout
mbed_official 155:8435094ec241 1139 * @retval FLASH Status: The returned value can be: FLASH_BUSY,
mbed_official 155:8435094ec241 1140 * FLASH_ERROR_PROGRAM, FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
mbed_official 155:8435094ec241 1141 */
mbed_official 155:8435094ec241 1142 FLASH_Status FLASH_WaitForLastOperation(uint32_t Timeout)
mbed_official 155:8435094ec241 1143 {
mbed_official 155:8435094ec241 1144 FLASH_Status status = FLASH_COMPLETE;
mbed_official 155:8435094ec241 1145
mbed_official 155:8435094ec241 1146 /* Check for the FLASH Status */
mbed_official 155:8435094ec241 1147 status = FLASH_GetStatus();
mbed_official 155:8435094ec241 1148
mbed_official 155:8435094ec241 1149 /* Wait for a FLASH operation to complete or a TIMEOUT to occur */
mbed_official 155:8435094ec241 1150 while((status == FLASH_BUSY) && (Timeout != 0x00))
mbed_official 155:8435094ec241 1151 {
mbed_official 155:8435094ec241 1152 status = FLASH_GetStatus();
mbed_official 155:8435094ec241 1153 Timeout--;
mbed_official 155:8435094ec241 1154 }
mbed_official 155:8435094ec241 1155
mbed_official 155:8435094ec241 1156 if(Timeout == 0x00 )
mbed_official 155:8435094ec241 1157 {
mbed_official 155:8435094ec241 1158 status = FLASH_TIMEOUT;
mbed_official 155:8435094ec241 1159 }
mbed_official 155:8435094ec241 1160 /* Return the operation status */
mbed_official 155:8435094ec241 1161 return status;
mbed_official 155:8435094ec241 1162 }
mbed_official 155:8435094ec241 1163
mbed_official 155:8435094ec241 1164 /**
mbed_official 155:8435094ec241 1165 * @}
mbed_official 155:8435094ec241 1166 */
mbed_official 155:8435094ec241 1167
mbed_official 155:8435094ec241 1168 /**
mbed_official 155:8435094ec241 1169 * @}
mbed_official 155:8435094ec241 1170 */
mbed_official 155:8435094ec241 1171
mbed_official 155:8435094ec241 1172 /**
mbed_official 155:8435094ec241 1173 * @}
mbed_official 155:8435094ec241 1174 */
mbed_official 155:8435094ec241 1175
mbed_official 155:8435094ec241 1176 /**
mbed_official 155:8435094ec241 1177 * @}
mbed_official 155:8435094ec241 1178 */
mbed_official 155:8435094ec241 1179
mbed_official 155:8435094ec241 1180 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/