shao ziyang / mbed-src-kl05

mbed library sources

Dependents:   frdm_kl05z_gpio_test

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targets/cmsis/TARGET_STM/TARGET_NUCLEO_F072RB/stm32f0xx_hal_flash.c@323:9e901b0a5aa1, 2014-09-13 (annotated)

Committer:
shaoziyang
Date:
Sat Sep 13 14:25:46 2014 +0000
Revision:
323:9e901b0a5aa1
Parent:
218:44081b78fdc2 
test with CLOCK_SETUP = 0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 205:c41fc65bcfb4 1 /**
mbed_official 205:c41fc65bcfb4 2 ******************************************************************************
mbed_official 205:c41fc65bcfb4 3 * @file stm32f0xx_hal_flash.c
mbed_official 205:c41fc65bcfb4 4 * @author MCD Application Team
mbed_official 205:c41fc65bcfb4 5 * @version V1.0.0
mbed_official 218:44081b78fdc2 6 * @date 28-May-2014
mbed_official 205:c41fc65bcfb4 7 * @brief FLASH HAL module driver.
mbed_official 205:c41fc65bcfb4 8 *
mbed_official 205:c41fc65bcfb4 9 * This file provides firmware functions to manage the following
mbed_official 205:c41fc65bcfb4 10 * functionalities of the internal FLASH memory:
mbed_official 205:c41fc65bcfb4 11 * + Program operations functions
mbed_official 205:c41fc65bcfb4 12 * + Memory Control functions
mbed_official 205:c41fc65bcfb4 13 * + Peripheral State functions
mbed_official 205:c41fc65bcfb4 14 *
mbed_official 205:c41fc65bcfb4 15 @verbatim
mbed_official 205:c41fc65bcfb4 16 ==============================================================================
mbed_official 205:c41fc65bcfb4 17 ##### FLASH peripheral features #####
mbed_official 205:c41fc65bcfb4 18 ==============================================================================
mbed_official 205:c41fc65bcfb4 19
mbed_official 205:c41fc65bcfb4 20 [..] The Flash memory interface manages CPU AHB I-Code and D-Code accesses
mbed_official 205:c41fc65bcfb4 21 to the Flash memory. It implements the erase and program Flash memory operations
mbed_official 205:c41fc65bcfb4 22 and the read and write protection mechanisms.
mbed_official 205:c41fc65bcfb4 23
mbed_official 205:c41fc65bcfb4 24 [..] The Flash memory interface accelerates code execution with a system of instruction
mbed_official 205:c41fc65bcfb4 25 prefetch.
mbed_official 205:c41fc65bcfb4 26
mbed_official 205:c41fc65bcfb4 27 [..] The FLASH main features are:
mbed_official 205:c41fc65bcfb4 28 (+) Flash memory read operations
mbed_official 205:c41fc65bcfb4 29 (+) Flash memory program/erase operations
mbed_official 205:c41fc65bcfb4 30 (+) Read / write protections
mbed_official 205:c41fc65bcfb4 31 (+) Prefetch on I-Code
mbed_official 205:c41fc65bcfb4 32
mbed_official 205:c41fc65bcfb4 33
mbed_official 205:c41fc65bcfb4 34 ##### How to use this driver #####
mbed_official 205:c41fc65bcfb4 35 ==============================================================================
mbed_official 205:c41fc65bcfb4 36 [..]
mbed_official 205:c41fc65bcfb4 37 This driver provides functions and macros to configure and program the FLASH
mbed_official 205:c41fc65bcfb4 38 memory of all STM32F0xx devices. These functions are split in 3 groups:
mbed_official 205:c41fc65bcfb4 39
mbed_official 205:c41fc65bcfb4 40 (#) FLASH Memory I/O Programming functions: this group includes all needed
mbed_official 205:c41fc65bcfb4 41 functions to erase and program the main memory:
mbed_official 205:c41fc65bcfb4 42 (++) Lock and Unlock the FLASH interface
mbed_official 205:c41fc65bcfb4 43 (++) Erase function: Erase page, erase all pages
mbed_official 205:c41fc65bcfb4 44 (++) Program functions: half word and word
mbed_official 205:c41fc65bcfb4 45
mbed_official 205:c41fc65bcfb4 46 (#) Option Bytes Programming functions: this group includes all needed
mbed_official 205:c41fc65bcfb4 47 functions to manage the Option Bytes:
mbed_official 205:c41fc65bcfb4 48 (++) Lock and Unlock the Option Bytes
mbed_official 205:c41fc65bcfb4 49 (++) Erase Option Bytes
mbed_official 205:c41fc65bcfb4 50 (++) Set/Reset the write protection
mbed_official 205:c41fc65bcfb4 51 (++) Set the Read protection Level
mbed_official 205:c41fc65bcfb4 52 (++) Program the user Option Bytes
mbed_official 205:c41fc65bcfb4 53 (++) Program the data Option Bytes
mbed_official 205:c41fc65bcfb4 54 (++) Launch the Option Bytes loader
mbed_official 205:c41fc65bcfb4 55
mbed_official 205:c41fc65bcfb4 56 (#) Interrupts and flags management functions : this group
mbed_official 205:c41fc65bcfb4 57 includes all needed functions to:
mbed_official 205:c41fc65bcfb4 58 (++) Handle FLASH interrupts
mbed_official 205:c41fc65bcfb4 59 (++) Wait for last FLASH operation according to its status
mbed_official 205:c41fc65bcfb4 60 (++) Get error flag status
mbed_official 205:c41fc65bcfb4 61
mbed_official 205:c41fc65bcfb4 62 [..] In addition to these function, this driver includes a set of macros allowing
mbed_official 205:c41fc65bcfb4 63 to handle the following operations:
mbed_official 205:c41fc65bcfb4 64
mbed_official 205:c41fc65bcfb4 65 (+) Set the latency
mbed_official 205:c41fc65bcfb4 66 (+) Enable/Disable the prefetch buffer
mbed_official 205:c41fc65bcfb4 67 (+) Enable/Disable the FLASH interrupts
mbed_official 205:c41fc65bcfb4 68 (+) Monitor the FLASH flags status
mbed_official 205:c41fc65bcfb4 69
mbed_official 205:c41fc65bcfb4 70 @endverbatim
mbed_official 205:c41fc65bcfb4 71 ******************************************************************************
mbed_official 205:c41fc65bcfb4 72 * @attention
mbed_official 205:c41fc65bcfb4 73 *
mbed_official 205:c41fc65bcfb4 74 * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
mbed_official 205:c41fc65bcfb4 75 *
mbed_official 205:c41fc65bcfb4 76 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 205:c41fc65bcfb4 77 * are permitted provided that the following conditions are met:
mbed_official 205:c41fc65bcfb4 78 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 205:c41fc65bcfb4 79 * this list of conditions and the following disclaimer.
mbed_official 205:c41fc65bcfb4 80 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 205:c41fc65bcfb4 81 * this list of conditions and the following disclaimer in the documentation
mbed_official 205:c41fc65bcfb4 82 * and/or other materials provided with the distribution.
mbed_official 205:c41fc65bcfb4 83 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 205:c41fc65bcfb4 84 * may be used to endorse or promote products derived from this software
mbed_official 205:c41fc65bcfb4 85 * without specific prior written permission.
mbed_official 205:c41fc65bcfb4 86 *
mbed_official 205:c41fc65bcfb4 87 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 205:c41fc65bcfb4 88 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 205:c41fc65bcfb4 89 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 205:c41fc65bcfb4 90 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 205:c41fc65bcfb4 91 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 205:c41fc65bcfb4 92 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 205:c41fc65bcfb4 93 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 205:c41fc65bcfb4 94 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 205:c41fc65bcfb4 95 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 205:c41fc65bcfb4 96 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 205:c41fc65bcfb4 97 *
mbed_official 205:c41fc65bcfb4 98 ******************************************************************************
mbed_official 205:c41fc65bcfb4 99 */
mbed_official 205:c41fc65bcfb4 100
mbed_official 205:c41fc65bcfb4 101 /* Includes ------------------------------------------------------------------*/
mbed_official 205:c41fc65bcfb4 102 #include "stm32f0xx_hal.h"
mbed_official 205:c41fc65bcfb4 103
mbed_official 205:c41fc65bcfb4 104 /** @addtogroup STM32F0xx_HAL_Driver
mbed_official 205:c41fc65bcfb4 105 * @{
mbed_official 205:c41fc65bcfb4 106 */
mbed_official 205:c41fc65bcfb4 107
mbed_official 205:c41fc65bcfb4 108 /** @defgroup FLASH
mbed_official 205:c41fc65bcfb4 109 * @brief FLASH HAL module driver
mbed_official 205:c41fc65bcfb4 110 * @{
mbed_official 205:c41fc65bcfb4 111 */
mbed_official 205:c41fc65bcfb4 112
mbed_official 205:c41fc65bcfb4 113 #ifdef HAL_FLASH_MODULE_ENABLED
mbed_official 205:c41fc65bcfb4 114
mbed_official 205:c41fc65bcfb4 115 /* Private typedef -----------------------------------------------------------*/
mbed_official 205:c41fc65bcfb4 116 /* Private define ------------------------------------------------------------*/
mbed_official 205:c41fc65bcfb4 117 /* Private macro -------------------------------------------------------------*/
mbed_official 205:c41fc65bcfb4 118 /* Private variables ---------------------------------------------------------*/
mbed_official 205:c41fc65bcfb4 119 /* Variables used for Erase pages under interruption*/
mbed_official 205:c41fc65bcfb4 120 FLASH_ProcessTypeDef pFlash;
mbed_official 205:c41fc65bcfb4 121
mbed_official 205:c41fc65bcfb4 122 /* Private function prototypes -----------------------------------------------*/
mbed_official 205:c41fc65bcfb4 123 /* Erase operations */
mbed_official 205:c41fc65bcfb4 124 void FLASH_PageErase(uint32_t PageAddress);
mbed_official 205:c41fc65bcfb4 125
mbed_official 205:c41fc65bcfb4 126 /* Program operations */
mbed_official 205:c41fc65bcfb4 127 static void FLASH_Program_HalfWord(uint32_t Address, uint16_t Data);
mbed_official 205:c41fc65bcfb4 128
mbed_official 205:c41fc65bcfb4 129 HAL_StatusTypeDef FLASH_WaitForLastOperation(uint32_t Timeout);
mbed_official 205:c41fc65bcfb4 130 static void FLASH_SetErrorCode(void);
mbed_official 205:c41fc65bcfb4 131
mbed_official 205:c41fc65bcfb4 132 /* Private functions ---------------------------------------------------------*/
mbed_official 205:c41fc65bcfb4 133
mbed_official 205:c41fc65bcfb4 134 /** @defgroup FLASH_Private_Functions
mbed_official 205:c41fc65bcfb4 135 * @{
mbed_official 205:c41fc65bcfb4 136 */
mbed_official 205:c41fc65bcfb4 137
mbed_official 205:c41fc65bcfb4 138 /** @defgroup HAL_FLASH_Group1 Initialization/de-initialization functions
mbed_official 205:c41fc65bcfb4 139 * @brief Initialization and Configuration functions
mbed_official 205:c41fc65bcfb4 140 *
mbed_official 205:c41fc65bcfb4 141 @verbatim
mbed_official 205:c41fc65bcfb4 142 ===============================================================================
mbed_official 205:c41fc65bcfb4 143 ##### Initialization and de-initialization functions #####
mbed_official 205:c41fc65bcfb4 144 ===============================================================================
mbed_official 205:c41fc65bcfb4 145 [..] This section provides functions allowing to:
mbed_official 205:c41fc65bcfb4 146
mbed_official 205:c41fc65bcfb4 147 @endverbatim
mbed_official 205:c41fc65bcfb4 148 * @{
mbed_official 205:c41fc65bcfb4 149 */
mbed_official 205:c41fc65bcfb4 150
mbed_official 205:c41fc65bcfb4 151
mbed_official 205:c41fc65bcfb4 152 /**
mbed_official 205:c41fc65bcfb4 153 * @}
mbed_official 205:c41fc65bcfb4 154 */
mbed_official 205:c41fc65bcfb4 155
mbed_official 205:c41fc65bcfb4 156 /** @defgroup HAL_FLASH_Group2 I/O operation functions
mbed_official 205:c41fc65bcfb4 157 * @brief Data transfers functions
mbed_official 205:c41fc65bcfb4 158 *
mbed_official 205:c41fc65bcfb4 159 @verbatim
mbed_official 205:c41fc65bcfb4 160 ===============================================================================
mbed_official 205:c41fc65bcfb4 161 ##### IO operation functions #####
mbed_official 205:c41fc65bcfb4 162 ===============================================================================
mbed_official 205:c41fc65bcfb4 163 [..]
mbed_official 205:c41fc65bcfb4 164 This subsection provides a set of functions allowing to manage the FLASH
mbed_official 205:c41fc65bcfb4 165 program operations (write/erase).
mbed_official 205:c41fc65bcfb4 166
mbed_official 205:c41fc65bcfb4 167 @endverbatim
mbed_official 205:c41fc65bcfb4 168 * @{
mbed_official 205:c41fc65bcfb4 169 */
mbed_official 205:c41fc65bcfb4 170
mbed_official 205:c41fc65bcfb4 171 /**
mbed_official 205:c41fc65bcfb4 172 * @brief Program halfword, word or double word at a specified address
mbed_official 205:c41fc65bcfb4 173 * @note The function HAL_FLASH_Unlock() should be called before to unlock the FLASH interface
mbed_official 205:c41fc65bcfb4 174 * The function HAL_FLASH_Lock() should be called after to lock the FLASH interface
mbed_official 205:c41fc65bcfb4 175 *
mbed_official 205:c41fc65bcfb4 176 * @note If an erase and a program operations are requested simultaneously,
mbed_official 205:c41fc65bcfb4 177 * the erase operation is performed before the program one.
mbed_official 205:c41fc65bcfb4 178 *
mbed_official 205:c41fc65bcfb4 179 * @param TypeProgram: Indicate the way to program at a specified address.
mbed_official 205:c41fc65bcfb4 180 * This parameter can be a value of @ref FLASH_Type_Program
mbed_official 205:c41fc65bcfb4 181 * @param Address: Specifies the address to be programmed.
mbed_official 205:c41fc65bcfb4 182 * @param Data: Specifies the data to be programmed
mbed_official 205:c41fc65bcfb4 183 *
mbed_official 205:c41fc65bcfb4 184 * @retval HAL_StatusTypeDef HAL Status
mbed_official 205:c41fc65bcfb4 185 */
mbed_official 205:c41fc65bcfb4 186 HAL_StatusTypeDef HAL_FLASH_Program(uint32_t TypeProgram, uint32_t Address, uint64_t Data)
mbed_official 205:c41fc65bcfb4 187 {
mbed_official 205:c41fc65bcfb4 188 HAL_StatusTypeDef status = HAL_ERROR;
mbed_official 205:c41fc65bcfb4 189 uint8_t index = 0;
mbed_official 205:c41fc65bcfb4 190 uint8_t nbiterations = 0;
mbed_official 205:c41fc65bcfb4 191
mbed_official 205:c41fc65bcfb4 192 /* Process Locked */
mbed_official 205:c41fc65bcfb4 193 __HAL_LOCK(&pFlash);
mbed_official 205:c41fc65bcfb4 194
mbed_official 205:c41fc65bcfb4 195 /* Check the parameters */
mbed_official 205:c41fc65bcfb4 196 assert_param(IS_TYPEPROGRAM(TypeProgram));
mbed_official 205:c41fc65bcfb4 197 assert_param(IS_FLASH_PROGRAM_ADDRESS(Address));
mbed_official 205:c41fc65bcfb4 198
mbed_official 205:c41fc65bcfb4 199 /* Wait for last operation to be completed */
mbed_official 205:c41fc65bcfb4 200 status = FLASH_WaitForLastOperation((uint32_t)HAL_FLASH_TIMEOUT_VALUE);
mbed_official 205:c41fc65bcfb4 201
mbed_official 205:c41fc65bcfb4 202 if(status == HAL_OK)
mbed_official 205:c41fc65bcfb4 203 {
mbed_official 205:c41fc65bcfb4 204 if(TypeProgram == TYPEPROGRAM_HALFWORD)
mbed_official 205:c41fc65bcfb4 205 {
mbed_official 205:c41fc65bcfb4 206 /* Program halfword (16-bit) at a specified address. */
mbed_official 205:c41fc65bcfb4 207 nbiterations = 1;
mbed_official 205:c41fc65bcfb4 208 }
mbed_official 205:c41fc65bcfb4 209 else if(TypeProgram == TYPEPROGRAM_WORD)
mbed_official 205:c41fc65bcfb4 210 {
mbed_official 205:c41fc65bcfb4 211 /* Program word (32-bit = 2*16-bit) at a specified address. */
mbed_official 205:c41fc65bcfb4 212 nbiterations = 2;
mbed_official 205:c41fc65bcfb4 213 }
mbed_official 205:c41fc65bcfb4 214 else
mbed_official 205:c41fc65bcfb4 215 {
mbed_official 205:c41fc65bcfb4 216 /* Program double word (64-bit = 4*16-bit) at a specified address. */
mbed_official 205:c41fc65bcfb4 217 nbiterations = 4;
mbed_official 205:c41fc65bcfb4 218 }
mbed_official 205:c41fc65bcfb4 219
mbed_official 205:c41fc65bcfb4 220 for (index = 0; index < nbiterations; index++)
mbed_official 205:c41fc65bcfb4 221 {
mbed_official 205:c41fc65bcfb4 222 FLASH_Program_HalfWord((Address + (2*index)), (uint16_t)(Data >> (16*index)));
mbed_official 205:c41fc65bcfb4 223
mbed_official 205:c41fc65bcfb4 224 /* Wait for last operation to be completed */
mbed_official 205:c41fc65bcfb4 225 status = FLASH_WaitForLastOperation((uint32_t)HAL_FLASH_TIMEOUT_VALUE);
mbed_official 205:c41fc65bcfb4 226
mbed_official 205:c41fc65bcfb4 227 /* Check FLASH End of Operation flag */
mbed_official 205:c41fc65bcfb4 228 if (__HAL_FLASH_GET_FLAG(FLASH_FLAG_EOP))
mbed_official 205:c41fc65bcfb4 229 {
mbed_official 205:c41fc65bcfb4 230 /* Clear FLASH End of Operation pending bit */
mbed_official 205:c41fc65bcfb4 231 __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP);
mbed_official 205:c41fc65bcfb4 232 }
mbed_official 205:c41fc65bcfb4 233
mbed_official 205:c41fc65bcfb4 234 /* If the program operation is completed, disable the PG Bit */
mbed_official 205:c41fc65bcfb4 235 CLEAR_BIT(FLASH->CR, FLASH_CR_PG);
mbed_official 205:c41fc65bcfb4 236 }
mbed_official 205:c41fc65bcfb4 237 }
mbed_official 205:c41fc65bcfb4 238
mbed_official 205:c41fc65bcfb4 239 /* Process Unlocked */
mbed_official 205:c41fc65bcfb4 240 __HAL_UNLOCK(&pFlash);
mbed_official 205:c41fc65bcfb4 241
mbed_official 205:c41fc65bcfb4 242 return status;
mbed_official 205:c41fc65bcfb4 243 }
mbed_official 205:c41fc65bcfb4 244
mbed_official 205:c41fc65bcfb4 245 /**
mbed_official 205:c41fc65bcfb4 246 * @brief Program halfword, word or double word at a specified address with interrupt enabled.
mbed_official 205:c41fc65bcfb4 247 * @note The function HAL_FLASH_Unlock() should be called before to unlock the FLASH interface
mbed_official 205:c41fc65bcfb4 248 * The function HAL_FLASH_Lock() should be called after to lock the FLASH interface
mbed_official 205:c41fc65bcfb4 249 *
mbed_official 205:c41fc65bcfb4 250 * @note If an erase and a program operations are requested simultaneously,
mbed_official 205:c41fc65bcfb4 251 * the erase operation is performed before the program one.
mbed_official 205:c41fc65bcfb4 252 *
mbed_official 205:c41fc65bcfb4 253 * @param TypeProgram: Indicate the way to program at a specified address.
mbed_official 205:c41fc65bcfb4 254 * This parameter can be a value of @ref FLASH_Type_Program
mbed_official 205:c41fc65bcfb4 255 * @param Address: Specifies the address to be programmed.
mbed_official 205:c41fc65bcfb4 256 * @param Data: Specifies the data to be programmed
mbed_official 205:c41fc65bcfb4 257 *
mbed_official 205:c41fc65bcfb4 258 * @retval HAL_StatusTypeDef HAL Status
mbed_official 205:c41fc65bcfb4 259 */
mbed_official 205:c41fc65bcfb4 260 HAL_StatusTypeDef HAL_FLASH_Program_IT(uint32_t TypeProgram, uint32_t Address, uint64_t Data)
mbed_official 205:c41fc65bcfb4 261 {
mbed_official 205:c41fc65bcfb4 262 HAL_StatusTypeDef status = HAL_OK;
mbed_official 205:c41fc65bcfb4 263
mbed_official 205:c41fc65bcfb4 264 /* Process Locked */
mbed_official 205:c41fc65bcfb4 265 __HAL_LOCK(&pFlash);
mbed_official 205:c41fc65bcfb4 266
mbed_official 205:c41fc65bcfb4 267 /* Check the parameters */
mbed_official 205:c41fc65bcfb4 268 assert_param(IS_TYPEPROGRAM(TypeProgram));
mbed_official 205:c41fc65bcfb4 269 assert_param(IS_FLASH_PROGRAM_ADDRESS(Address));
mbed_official 205:c41fc65bcfb4 270
mbed_official 205:c41fc65bcfb4 271 /* Enable End of FLASH Operation and Error source interrupts */
mbed_official 205:c41fc65bcfb4 272 __HAL_FLASH_ENABLE_IT((FLASH_IT_EOP | FLASH_IT_ERR));
mbed_official 205:c41fc65bcfb4 273
mbed_official 205:c41fc65bcfb4 274 pFlash.Address = Address;
mbed_official 205:c41fc65bcfb4 275 pFlash.Data = Data;
mbed_official 205:c41fc65bcfb4 276
mbed_official 205:c41fc65bcfb4 277 if(TypeProgram == TYPEPROGRAM_HALFWORD)
mbed_official 205:c41fc65bcfb4 278 {
mbed_official 205:c41fc65bcfb4 279 pFlash.ProcedureOnGoing = FLASH_PROC_PROGRAMHALFWORD;
mbed_official 205:c41fc65bcfb4 280 /*Program halfword (16-bit) at a specified address.*/
mbed_official 205:c41fc65bcfb4 281 pFlash.DataRemaining = 1;
mbed_official 205:c41fc65bcfb4 282 }
mbed_official 205:c41fc65bcfb4 283 else if(TypeProgram == TYPEPROGRAM_WORD)
mbed_official 205:c41fc65bcfb4 284 {
mbed_official 205:c41fc65bcfb4 285 pFlash.ProcedureOnGoing = FLASH_PROC_PROGRAMWORD;
mbed_official 205:c41fc65bcfb4 286 /*Program word (32-bit : 2*16-bit) at a specified address.*/
mbed_official 205:c41fc65bcfb4 287 pFlash.DataRemaining = 2;
mbed_official 205:c41fc65bcfb4 288 }
mbed_official 205:c41fc65bcfb4 289 else
mbed_official 205:c41fc65bcfb4 290 {
mbed_official 205:c41fc65bcfb4 291 pFlash.ProcedureOnGoing = FLASH_PROC_PROGRAMDOUBLEWORD;
mbed_official 205:c41fc65bcfb4 292 /*Program double word (64-bit : 4*16-bit) at a specified address.*/
mbed_official 205:c41fc65bcfb4 293 pFlash.DataRemaining = 4;
mbed_official 205:c41fc65bcfb4 294 }
mbed_official 205:c41fc65bcfb4 295
mbed_official 205:c41fc65bcfb4 296 /*Program halfword (16-bit) at a specified address.*/
mbed_official 205:c41fc65bcfb4 297 FLASH_Program_HalfWord(Address, (uint16_t)Data);
mbed_official 205:c41fc65bcfb4 298
mbed_official 205:c41fc65bcfb4 299 return status;
mbed_official 205:c41fc65bcfb4 300 }
mbed_official 205:c41fc65bcfb4 301
mbed_official 205:c41fc65bcfb4 302 /**
mbed_official 205:c41fc65bcfb4 303 * @brief This function handles FLASH interrupt request.
mbed_official 205:c41fc65bcfb4 304 * @param None
mbed_official 205:c41fc65bcfb4 305 * @retval None
mbed_official 205:c41fc65bcfb4 306 */
mbed_official 205:c41fc65bcfb4 307 void HAL_FLASH_IRQHandler(void)
mbed_official 205:c41fc65bcfb4 308 {
mbed_official 205:c41fc65bcfb4 309 uint32_t addresstmp;
mbed_official 205:c41fc65bcfb4 310 /* If the operation is completed, disable the PG, PER and MER Bits */
mbed_official 205:c41fc65bcfb4 311 CLEAR_BIT(FLASH->CR, (FLASH_CR_PG | FLASH_CR_PER | FLASH_CR_MER));
mbed_official 205:c41fc65bcfb4 312
mbed_official 205:c41fc65bcfb4 313 /* Check FLASH End of Operation flag */
mbed_official 205:c41fc65bcfb4 314 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_EOP))
mbed_official 205:c41fc65bcfb4 315 {
mbed_official 205:c41fc65bcfb4 316 /* Clear FLASH End of Operation pending bit */
mbed_official 205:c41fc65bcfb4 317 __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP);
mbed_official 205:c41fc65bcfb4 318
mbed_official 205:c41fc65bcfb4 319 if(pFlash.ProcedureOnGoing == FLASH_PROC_PAGEERASE)
mbed_official 205:c41fc65bcfb4 320 {
mbed_official 205:c41fc65bcfb4 321 /* Nb of pages to erased can be decreased */
mbed_official 205:c41fc65bcfb4 322 pFlash.DataRemaining--;
mbed_official 205:c41fc65bcfb4 323
mbed_official 205:c41fc65bcfb4 324 /* Indicate user which page address has been erased*/
mbed_official 205:c41fc65bcfb4 325 HAL_FLASH_EndOfOperationCallback(pFlash.Address);
mbed_official 205:c41fc65bcfb4 326
mbed_official 205:c41fc65bcfb4 327 /* Check if there are still pages to erase*/
mbed_official 205:c41fc65bcfb4 328 if(pFlash.DataRemaining != 0)
mbed_official 205:c41fc65bcfb4 329 {
mbed_official 205:c41fc65bcfb4 330 /* Increment page address to next page */
mbed_official 205:c41fc65bcfb4 331 pFlash.Address += FLASH_PAGE_SIZE;
mbed_official 205:c41fc65bcfb4 332 addresstmp = pFlash.Address;
mbed_official 205:c41fc65bcfb4 333 FLASH_PageErase(addresstmp);
mbed_official 205:c41fc65bcfb4 334 }
mbed_official 205:c41fc65bcfb4 335 else
mbed_official 205:c41fc65bcfb4 336 {
mbed_official 205:c41fc65bcfb4 337 /*No more pages to Erase*/
mbed_official 205:c41fc65bcfb4 338
mbed_official 205:c41fc65bcfb4 339 /*Reset Address and stop Erase pages procedure*/
mbed_official 205:c41fc65bcfb4 340 pFlash.Address = 0xFFFFFFFF;
mbed_official 205:c41fc65bcfb4 341 pFlash.ProcedureOnGoing = FLASH_PROC_NONE;
mbed_official 205:c41fc65bcfb4 342 }
mbed_official 205:c41fc65bcfb4 343 }
mbed_official 205:c41fc65bcfb4 344 else if(pFlash.ProcedureOnGoing == FLASH_PROC_MASSERASE)
mbed_official 205:c41fc65bcfb4 345 {
mbed_official 205:c41fc65bcfb4 346 /*MassErase ended. Return the selected bank*/
mbed_official 205:c41fc65bcfb4 347 /* FLASH EOP interrupt user callback */
mbed_official 205:c41fc65bcfb4 348 HAL_FLASH_EndOfOperationCallback(0);
mbed_official 205:c41fc65bcfb4 349
mbed_official 205:c41fc65bcfb4 350 /* Stop Mass Erase procedure*/
mbed_official 205:c41fc65bcfb4 351 pFlash.ProcedureOnGoing = FLASH_PROC_NONE;
mbed_official 205:c41fc65bcfb4 352 }
mbed_official 205:c41fc65bcfb4 353 else
mbed_official 205:c41fc65bcfb4 354 {
mbed_official 205:c41fc65bcfb4 355 /* Nb of 16-bit data to program can be decreased */
mbed_official 205:c41fc65bcfb4 356 pFlash.DataRemaining--;
mbed_official 205:c41fc65bcfb4 357
mbed_official 205:c41fc65bcfb4 358 /* Check if there are still 16-bit data to program */
mbed_official 205:c41fc65bcfb4 359 if(pFlash.DataRemaining != 0)
mbed_official 205:c41fc65bcfb4 360 {
mbed_official 205:c41fc65bcfb4 361 /* Increment address to 16-bit */
mbed_official 205:c41fc65bcfb4 362 pFlash.Address += 2;
mbed_official 205:c41fc65bcfb4 363 addresstmp = pFlash.Address;
mbed_official 205:c41fc65bcfb4 364
mbed_official 205:c41fc65bcfb4 365 /* Shift to have next 16-bit data */
mbed_official 205:c41fc65bcfb4 366 pFlash.Data = (pFlash.Data >> 16);
mbed_official 205:c41fc65bcfb4 367
mbed_official 205:c41fc65bcfb4 368 /*Program halfword (16-bit) at a specified address.*/
mbed_official 205:c41fc65bcfb4 369 FLASH_Program_HalfWord(addresstmp, (uint16_t)pFlash.Data);
mbed_official 205:c41fc65bcfb4 370 }
mbed_official 205:c41fc65bcfb4 371 else
mbed_official 205:c41fc65bcfb4 372 {
mbed_official 205:c41fc65bcfb4 373 /*Program ended. Return the selected address*/
mbed_official 205:c41fc65bcfb4 374 /* FLASH EOP interrupt user callback */
mbed_official 205:c41fc65bcfb4 375 if (pFlash.ProcedureOnGoing == FLASH_PROC_PROGRAMHALFWORD)
mbed_official 205:c41fc65bcfb4 376 {
mbed_official 205:c41fc65bcfb4 377 HAL_FLASH_EndOfOperationCallback(pFlash.Address);
mbed_official 205:c41fc65bcfb4 378 }
mbed_official 205:c41fc65bcfb4 379 else if (pFlash.ProcedureOnGoing == FLASH_PROC_PROGRAMWORD)
mbed_official 205:c41fc65bcfb4 380 {
mbed_official 205:c41fc65bcfb4 381 HAL_FLASH_EndOfOperationCallback(pFlash.Address-2);
mbed_official 205:c41fc65bcfb4 382 }
mbed_official 205:c41fc65bcfb4 383 else
mbed_official 205:c41fc65bcfb4 384 {
mbed_official 205:c41fc65bcfb4 385 HAL_FLASH_EndOfOperationCallback(pFlash.Address-6);
mbed_official 205:c41fc65bcfb4 386 }
mbed_official 205:c41fc65bcfb4 387
mbed_official 205:c41fc65bcfb4 388 /* Reset Address and stop Program procedure*/
mbed_official 205:c41fc65bcfb4 389 pFlash.Address = 0xFFFFFFFF;
mbed_official 205:c41fc65bcfb4 390 pFlash.ProcedureOnGoing = FLASH_PROC_NONE;
mbed_official 205:c41fc65bcfb4 391 }
mbed_official 205:c41fc65bcfb4 392 }
mbed_official 205:c41fc65bcfb4 393 }
mbed_official 205:c41fc65bcfb4 394
mbed_official 205:c41fc65bcfb4 395 /* Check FLASH operation error flags */
mbed_official 205:c41fc65bcfb4 396 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR | FLASH_FLAG_PGERR))
mbed_official 205:c41fc65bcfb4 397 {
mbed_official 205:c41fc65bcfb4 398 /*Save the Error code*/
mbed_official 205:c41fc65bcfb4 399 FLASH_SetErrorCode();
mbed_official 205:c41fc65bcfb4 400
mbed_official 205:c41fc65bcfb4 401 /* FLASH error interrupt user callback */
mbed_official 205:c41fc65bcfb4 402 HAL_FLASH_OperationErrorCallback(pFlash.Address);
mbed_official 205:c41fc65bcfb4 403
mbed_official 205:c41fc65bcfb4 404 /* Clear FLASH error pending bits */
mbed_official 205:c41fc65bcfb4 405 __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_WRPERR | FLASH_FLAG_PGERR);
mbed_official 205:c41fc65bcfb4 406
mbed_official 205:c41fc65bcfb4 407 /* Reset address and stop the procedure ongoing*/
mbed_official 205:c41fc65bcfb4 408 pFlash.Address = 0xFFFFFFFF;
mbed_official 205:c41fc65bcfb4 409 pFlash.ProcedureOnGoing = FLASH_PROC_NONE;
mbed_official 205:c41fc65bcfb4 410 }
mbed_official 205:c41fc65bcfb4 411
mbed_official 205:c41fc65bcfb4 412 if(pFlash.ProcedureOnGoing == FLASH_PROC_NONE)
mbed_official 205:c41fc65bcfb4 413 {
mbed_official 205:c41fc65bcfb4 414 /* Disable End of FLASH Operation and Error source interrupts */
mbed_official 205:c41fc65bcfb4 415 __HAL_FLASH_DISABLE_IT((FLASH_IT_EOP | FLASH_IT_ERR));
mbed_official 205:c41fc65bcfb4 416
mbed_official 205:c41fc65bcfb4 417 /* Process Unlocked */
mbed_official 205:c41fc65bcfb4 418 __HAL_UNLOCK(&pFlash);
mbed_official 205:c41fc65bcfb4 419 }
mbed_official 205:c41fc65bcfb4 420 }
mbed_official 205:c41fc65bcfb4 421
mbed_official 205:c41fc65bcfb4 422
mbed_official 205:c41fc65bcfb4 423 /**
mbed_official 205:c41fc65bcfb4 424 * @brief FLASH end of operation interrupt callback
mbed_official 205:c41fc65bcfb4 425 * @param ReturnValue: The value saved in this parameter depends on the ongoing procedure
mbed_official 205:c41fc65bcfb4 426 * - Mass Erase: No return value expected
mbed_official 205:c41fc65bcfb4 427 * - Pages Erase: Address of the page which has been erased
mbed_official 205:c41fc65bcfb4 428 * - Program: Address which was selected for data program
mbed_official 205:c41fc65bcfb4 429 * @retval none
mbed_official 205:c41fc65bcfb4 430 */
mbed_official 205:c41fc65bcfb4 431 __weak void HAL_FLASH_EndOfOperationCallback(uint32_t ReturnValue)
mbed_official 205:c41fc65bcfb4 432 {
mbed_official 205:c41fc65bcfb4 433 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 205:c41fc65bcfb4 434 the HAL_FLASH_EndOfOperationCallback could be implemented in the user file
mbed_official 205:c41fc65bcfb4 435 */
mbed_official 205:c41fc65bcfb4 436 }
mbed_official 205:c41fc65bcfb4 437
mbed_official 205:c41fc65bcfb4 438 /**
mbed_official 205:c41fc65bcfb4 439 * @brief FLASH operation error interrupt callback
mbed_official 205:c41fc65bcfb4 440 * @param ReturnValue: The value saved in this parameter depends on the ongoing procedure
mbed_official 205:c41fc65bcfb4 441 * - Mass Erase: No return value expected
mbed_official 205:c41fc65bcfb4 442 * - Pages Erase: Address of the page which returned an error
mbed_official 205:c41fc65bcfb4 443 * - Program: Address which was selected for data program
mbed_official 205:c41fc65bcfb4 444 * @retval none
mbed_official 205:c41fc65bcfb4 445 */
mbed_official 205:c41fc65bcfb4 446 __weak void HAL_FLASH_OperationErrorCallback(uint32_t ReturnValue)
mbed_official 205:c41fc65bcfb4 447 {
mbed_official 205:c41fc65bcfb4 448 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 205:c41fc65bcfb4 449 the HAL_FLASH_OperationErrorCallback could be implemented in the user file
mbed_official 205:c41fc65bcfb4 450 */
mbed_official 205:c41fc65bcfb4 451 }
mbed_official 205:c41fc65bcfb4 452
mbed_official 205:c41fc65bcfb4 453 /**
mbed_official 205:c41fc65bcfb4 454 * @}
mbed_official 205:c41fc65bcfb4 455 */
mbed_official 205:c41fc65bcfb4 456
mbed_official 205:c41fc65bcfb4 457 /** @defgroup HAL_FLASH_Group3 Peripheral Control functions
mbed_official 205:c41fc65bcfb4 458 * @brief management functions
mbed_official 205:c41fc65bcfb4 459 *
mbed_official 205:c41fc65bcfb4 460 @verbatim
mbed_official 205:c41fc65bcfb4 461 ===============================================================================
mbed_official 205:c41fc65bcfb4 462 ##### Peripheral Control functions #####
mbed_official 205:c41fc65bcfb4 463 ===============================================================================
mbed_official 205:c41fc65bcfb4 464 [..]
mbed_official 205:c41fc65bcfb4 465 This subsection provides a set of functions allowing to control the FLASH
mbed_official 205:c41fc65bcfb4 466 memory operations.
mbed_official 205:c41fc65bcfb4 467
mbed_official 205:c41fc65bcfb4 468 @endverbatim
mbed_official 205:c41fc65bcfb4 469 * @{
mbed_official 205:c41fc65bcfb4 470 */
mbed_official 205:c41fc65bcfb4 471
mbed_official 205:c41fc65bcfb4 472 /**
mbed_official 205:c41fc65bcfb4 473 * @brief Unlock the FLASH control register access
mbed_official 205:c41fc65bcfb4 474 * @param None
mbed_official 205:c41fc65bcfb4 475 * @retval HAL Status
mbed_official 205:c41fc65bcfb4 476 */
mbed_official 205:c41fc65bcfb4 477 HAL_StatusTypeDef HAL_FLASH_Unlock(void)
mbed_official 205:c41fc65bcfb4 478 {
mbed_official 205:c41fc65bcfb4 479 if((READ_BIT(FLASH->CR, FLASH_CR_LOCK)) != RESET)
mbed_official 205:c41fc65bcfb4 480 {
mbed_official 205:c41fc65bcfb4 481 /* Authorize the FLASH Registers access */
mbed_official 205:c41fc65bcfb4 482 WRITE_REG(FLASH->KEYR, FLASH_FKEY1);
mbed_official 205:c41fc65bcfb4 483 WRITE_REG(FLASH->KEYR, FLASH_FKEY2);
mbed_official 205:c41fc65bcfb4 484 }
mbed_official 205:c41fc65bcfb4 485 else
mbed_official 205:c41fc65bcfb4 486 {
mbed_official 205:c41fc65bcfb4 487 return HAL_ERROR;
mbed_official 205:c41fc65bcfb4 488 }
mbed_official 205:c41fc65bcfb4 489
mbed_official 205:c41fc65bcfb4 490 return HAL_OK;
mbed_official 205:c41fc65bcfb4 491 }
mbed_official 205:c41fc65bcfb4 492
mbed_official 205:c41fc65bcfb4 493 /**
mbed_official 205:c41fc65bcfb4 494 * @brief Locks the FLASH control register access
mbed_official 205:c41fc65bcfb4 495 * @param None
mbed_official 205:c41fc65bcfb4 496 * @retval HAL Status
mbed_official 205:c41fc65bcfb4 497 */
mbed_official 205:c41fc65bcfb4 498 HAL_StatusTypeDef HAL_FLASH_Lock(void)
mbed_official 205:c41fc65bcfb4 499 {
mbed_official 205:c41fc65bcfb4 500 /* Set the LOCK Bit to lock the FLASH Registers access */
mbed_official 205:c41fc65bcfb4 501 SET_BIT(FLASH->CR, FLASH_CR_LOCK);
mbed_official 205:c41fc65bcfb4 502
mbed_official 205:c41fc65bcfb4 503 return HAL_OK;
mbed_official 205:c41fc65bcfb4 504 }
mbed_official 205:c41fc65bcfb4 505
mbed_official 205:c41fc65bcfb4 506
mbed_official 205:c41fc65bcfb4 507 /**
mbed_official 205:c41fc65bcfb4 508 * @brief Unlock the FLASH Option Control Registers access.
mbed_official 205:c41fc65bcfb4 509 * @param None
mbed_official 205:c41fc65bcfb4 510 * @retval HAL Status
mbed_official 205:c41fc65bcfb4 511 */
mbed_official 205:c41fc65bcfb4 512 HAL_StatusTypeDef HAL_FLASH_OB_Unlock(void)
mbed_official 205:c41fc65bcfb4 513 {
mbed_official 205:c41fc65bcfb4 514 if((READ_BIT(FLASH->CR, FLASH_CR_OPTWRE)) == RESET)
mbed_official 205:c41fc65bcfb4 515 {
mbed_official 205:c41fc65bcfb4 516 /* Authorizes the Option Byte register programming */
mbed_official 205:c41fc65bcfb4 517 WRITE_REG(FLASH->OPTKEYR, FLASH_OPTKEY1);
mbed_official 205:c41fc65bcfb4 518 WRITE_REG(FLASH->OPTKEYR, FLASH_OPTKEY2);
mbed_official 205:c41fc65bcfb4 519 }
mbed_official 205:c41fc65bcfb4 520 else
mbed_official 205:c41fc65bcfb4 521 {
mbed_official 205:c41fc65bcfb4 522 return HAL_ERROR;
mbed_official 205:c41fc65bcfb4 523 }
mbed_official 205:c41fc65bcfb4 524
mbed_official 205:c41fc65bcfb4 525 return HAL_OK;
mbed_official 205:c41fc65bcfb4 526 }
mbed_official 205:c41fc65bcfb4 527
mbed_official 205:c41fc65bcfb4 528 /**
mbed_official 205:c41fc65bcfb4 529 * @brief Lock the FLASH Option Control Registers access.
mbed_official 205:c41fc65bcfb4 530 * @param None
mbed_official 205:c41fc65bcfb4 531 * @retval HAL Status
mbed_official 205:c41fc65bcfb4 532 */
mbed_official 205:c41fc65bcfb4 533 HAL_StatusTypeDef HAL_FLASH_OB_Lock(void)
mbed_official 205:c41fc65bcfb4 534 {
mbed_official 205:c41fc65bcfb4 535 /* Clear the OPTWRE Bit to lock the FLASH Option Byte Registers access */
mbed_official 205:c41fc65bcfb4 536 CLEAR_BIT(FLASH->CR, FLASH_CR_OPTWRE);
mbed_official 205:c41fc65bcfb4 537
mbed_official 205:c41fc65bcfb4 538 return HAL_OK;
mbed_official 205:c41fc65bcfb4 539 }
mbed_official 205:c41fc65bcfb4 540
mbed_official 205:c41fc65bcfb4 541 /**
mbed_official 205:c41fc65bcfb4 542 * @brief Launch the option byte loading.
mbed_official 205:c41fc65bcfb4 543 * @param None
mbed_official 205:c41fc65bcfb4 544 * @retval HAL status
mbed_official 205:c41fc65bcfb4 545 */
mbed_official 205:c41fc65bcfb4 546 HAL_StatusTypeDef HAL_FLASH_OB_Launch(void)
mbed_official 205:c41fc65bcfb4 547 {
mbed_official 205:c41fc65bcfb4 548 /* Set the bit to force the option byte reloading */
mbed_official 205:c41fc65bcfb4 549 SET_BIT(FLASH->CR, FLASH_CR_OBL_LAUNCH);
mbed_official 205:c41fc65bcfb4 550
mbed_official 205:c41fc65bcfb4 551 /* Wait for last operation to be completed */
mbed_official 205:c41fc65bcfb4 552 return(FLASH_WaitForLastOperation((uint32_t)HAL_FLASH_TIMEOUT_VALUE));
mbed_official 205:c41fc65bcfb4 553 }
mbed_official 205:c41fc65bcfb4 554
mbed_official 205:c41fc65bcfb4 555 /**
mbed_official 205:c41fc65bcfb4 556 * @}
mbed_official 205:c41fc65bcfb4 557 */
mbed_official 205:c41fc65bcfb4 558
mbed_official 205:c41fc65bcfb4 559
mbed_official 205:c41fc65bcfb4 560 /** @defgroup HAL_FLASH_Group4 Peripheral State functions
mbed_official 205:c41fc65bcfb4 561 * @brief Peripheral State functions
mbed_official 205:c41fc65bcfb4 562 *
mbed_official 205:c41fc65bcfb4 563 @verbatim
mbed_official 205:c41fc65bcfb4 564 ===============================================================================
mbed_official 205:c41fc65bcfb4 565 ##### Peripheral State functions #####
mbed_official 205:c41fc65bcfb4 566 ===============================================================================
mbed_official 205:c41fc65bcfb4 567 [..]
mbed_official 205:c41fc65bcfb4 568 This subsection permit to get in run-time the status of the FLASH peripheral.
mbed_official 205:c41fc65bcfb4 569
mbed_official 205:c41fc65bcfb4 570 @endverbatim
mbed_official 205:c41fc65bcfb4 571 * @{
mbed_official 205:c41fc65bcfb4 572 */
mbed_official 205:c41fc65bcfb4 573
mbed_official 205:c41fc65bcfb4 574 /**
mbed_official 205:c41fc65bcfb4 575 * @brief Get the specific FLASH error flag.
mbed_official 205:c41fc65bcfb4 576 * @param None
mbed_official 205:c41fc65bcfb4 577 * @retval FLASH_ErrorCode: The returned value can be:
mbed_official 205:c41fc65bcfb4 578 * @arg FLASH_ERROR_PG: FLASH Programming error flag
mbed_official 205:c41fc65bcfb4 579 * @arg FLASH_ERROR_WRP: FLASH Write protected error flag
mbed_official 205:c41fc65bcfb4 580 */
mbed_official 205:c41fc65bcfb4 581 FLASH_ErrorTypeDef HAL_FLASH_GetError(void)
mbed_official 205:c41fc65bcfb4 582 {
mbed_official 205:c41fc65bcfb4 583 return pFlash.ErrorCode;
mbed_official 205:c41fc65bcfb4 584 }
mbed_official 205:c41fc65bcfb4 585
mbed_official 205:c41fc65bcfb4 586 /**
mbed_official 205:c41fc65bcfb4 587 * @}
mbed_official 205:c41fc65bcfb4 588 */
mbed_official 205:c41fc65bcfb4 589
mbed_official 205:c41fc65bcfb4 590 /**
mbed_official 205:c41fc65bcfb4 591 * @brief Erase the specified FLASH memory page
mbed_official 205:c41fc65bcfb4 592 * @param PageAddress: FLASH page to erase
mbed_official 205:c41fc65bcfb4 593 * The value of this parameter depend on device used within the same series
mbed_official 205:c41fc65bcfb4 594 *
mbed_official 205:c41fc65bcfb4 595 * @retval None
mbed_official 205:c41fc65bcfb4 596 */
mbed_official 205:c41fc65bcfb4 597 void FLASH_PageErase(uint32_t PageAddress)
mbed_official 205:c41fc65bcfb4 598 {
mbed_official 205:c41fc65bcfb4 599 /* Clear pending flags (if any) */
mbed_official 205:c41fc65bcfb4 600 __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP | FLASH_FLAG_WRPERR | FLASH_FLAG_PGERR);
mbed_official 205:c41fc65bcfb4 601
mbed_official 205:c41fc65bcfb4 602 /* Proceed to erase the page */
mbed_official 205:c41fc65bcfb4 603 SET_BIT(FLASH->CR, FLASH_CR_PER);
mbed_official 205:c41fc65bcfb4 604 WRITE_REG(FLASH->AR, PageAddress);
mbed_official 205:c41fc65bcfb4 605 SET_BIT(FLASH->CR, FLASH_CR_STRT);
mbed_official 205:c41fc65bcfb4 606 }
mbed_official 205:c41fc65bcfb4 607
mbed_official 205:c41fc65bcfb4 608 /**
mbed_official 205:c41fc65bcfb4 609 * @brief Program a half-word (16-bit) at a specified address.
mbed_official 205:c41fc65bcfb4 610 * @param Address: specifies the address to be programmed.
mbed_official 205:c41fc65bcfb4 611 * @param Data: specifies the data to be programmed.
mbed_official 205:c41fc65bcfb4 612 * @retval None
mbed_official 205:c41fc65bcfb4 613 */
mbed_official 205:c41fc65bcfb4 614 static void FLASH_Program_HalfWord(uint32_t Address, uint16_t Data)
mbed_official 205:c41fc65bcfb4 615 {
mbed_official 205:c41fc65bcfb4 616 /* Clear pending flags (if any) */
mbed_official 205:c41fc65bcfb4 617 __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP | FLASH_FLAG_WRPERR | FLASH_FLAG_PGERR);
mbed_official 205:c41fc65bcfb4 618
mbed_official 205:c41fc65bcfb4 619 /* Proceed to program the new data */
mbed_official 205:c41fc65bcfb4 620 SET_BIT(FLASH->CR, FLASH_CR_PG);
mbed_official 205:c41fc65bcfb4 621
mbed_official 205:c41fc65bcfb4 622 *(__IO uint16_t*)Address = Data;
mbed_official 205:c41fc65bcfb4 623 }
mbed_official 205:c41fc65bcfb4 624
mbed_official 205:c41fc65bcfb4 625 /**
mbed_official 205:c41fc65bcfb4 626 * @brief Wait for a FLASH operation to complete.
mbed_official 205:c41fc65bcfb4 627 * @param Timeout: maximum flash operationtimeout
mbed_official 205:c41fc65bcfb4 628 * @retval HAL_StatusTypeDef HAL Status
mbed_official 205:c41fc65bcfb4 629 */
mbed_official 205:c41fc65bcfb4 630 HAL_StatusTypeDef FLASH_WaitForLastOperation(uint32_t Timeout)
mbed_official 205:c41fc65bcfb4 631 {
mbed_official 205:c41fc65bcfb4 632 /* Wait for the FLASH operation to complete by polling on BUSY flag to be reset.
mbed_official 205:c41fc65bcfb4 633 Even if the FLASH operation fails, the BUSY flag will be reset and an error
mbed_official 205:c41fc65bcfb4 634 flag will be set */
mbed_official 205:c41fc65bcfb4 635
mbed_official 205:c41fc65bcfb4 636 uint32_t tickstart = HAL_GetTick();
mbed_official 205:c41fc65bcfb4 637
mbed_official 205:c41fc65bcfb4 638 while(__HAL_FLASH_GET_FLAG(FLASH_FLAG_BSY))
mbed_official 205:c41fc65bcfb4 639 {
mbed_official 205:c41fc65bcfb4 640 if(Timeout != HAL_MAX_DELAY)
mbed_official 205:c41fc65bcfb4 641 {
mbed_official 205:c41fc65bcfb4 642 if((HAL_GetTick() - tickstart) > Timeout)
mbed_official 205:c41fc65bcfb4 643 {
mbed_official 205:c41fc65bcfb4 644 return HAL_TIMEOUT;
mbed_official 205:c41fc65bcfb4 645 }
mbed_official 205:c41fc65bcfb4 646 }
mbed_official 205:c41fc65bcfb4 647 }
mbed_official 205:c41fc65bcfb4 648
mbed_official 205:c41fc65bcfb4 649 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR) || __HAL_FLASH_GET_FLAG(FLASH_FLAG_PGERR))
mbed_official 205:c41fc65bcfb4 650 {
mbed_official 205:c41fc65bcfb4 651 /*Save the error code*/
mbed_official 205:c41fc65bcfb4 652 FLASH_SetErrorCode();
mbed_official 205:c41fc65bcfb4 653 return HAL_ERROR;
mbed_official 205:c41fc65bcfb4 654 }
mbed_official 205:c41fc65bcfb4 655
mbed_official 205:c41fc65bcfb4 656 /* If there is an error flag set */
mbed_official 205:c41fc65bcfb4 657 return HAL_OK;
mbed_official 205:c41fc65bcfb4 658
mbed_official 205:c41fc65bcfb4 659 }
mbed_official 205:c41fc65bcfb4 660
mbed_official 205:c41fc65bcfb4 661 /**
mbed_official 205:c41fc65bcfb4 662 * @brief Set the specific FLASH error flag.
mbed_official 205:c41fc65bcfb4 663 * @param None
mbed_official 205:c41fc65bcfb4 664 * @retval None
mbed_official 205:c41fc65bcfb4 665 */
mbed_official 205:c41fc65bcfb4 666 static void FLASH_SetErrorCode(void)
mbed_official 205:c41fc65bcfb4 667 {
mbed_official 205:c41fc65bcfb4 668 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR))
mbed_official 205:c41fc65bcfb4 669 {
mbed_official 205:c41fc65bcfb4 670 pFlash.ErrorCode = FLASH_ERROR_WRP;
mbed_official 205:c41fc65bcfb4 671 }
mbed_official 205:c41fc65bcfb4 672 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_PGERR))
mbed_official 205:c41fc65bcfb4 673 {
mbed_official 205:c41fc65bcfb4 674 pFlash.ErrorCode |= FLASH_ERROR_PG;
mbed_official 205:c41fc65bcfb4 675 }
mbed_official 205:c41fc65bcfb4 676 }
mbed_official 205:c41fc65bcfb4 677
mbed_official 205:c41fc65bcfb4 678 /**
mbed_official 205:c41fc65bcfb4 679 * @}
mbed_official 205:c41fc65bcfb4 680 */
mbed_official 205:c41fc65bcfb4 681
mbed_official 205:c41fc65bcfb4 682 #endif /* HAL_FLASH_MODULE_ENABLED */
mbed_official 205:c41fc65bcfb4 683
mbed_official 205:c41fc65bcfb4 684 /**
mbed_official 205:c41fc65bcfb4 685 * @}
mbed_official 205:c41fc65bcfb4 686 */
mbed_official 205:c41fc65bcfb4 687
mbed_official 205:c41fc65bcfb4 688 /**
mbed_official 205:c41fc65bcfb4 689 * @}
mbed_official 205:c41fc65bcfb4 690 */
mbed_official 205:c41fc65bcfb4 691
mbed_official 205:c41fc65bcfb4 692 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/