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2
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1 /**
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2 ******************************************************************************
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3 * @file stm32f1xx_hal_flash.c
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4 * @author MCD Application Team
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5 * @version V1.0.4
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6 * @date 29-April-2016
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7 * @brief FLASH HAL module driver.
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8 * This file provides firmware functions to manage the following
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9 * functionalities of the internal FLASH memory:
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10 * + Program operations functions
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11 * + Memory Control functions
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12 * + Peripheral State functions
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13 *
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14 @verbatim
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15 ==============================================================================
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16 ##### FLASH peripheral features #####
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17 ==============================================================================
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18 [..] The Flash memory interface manages CPU AHB I-Code and D-Code accesses
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19 to the Flash memory. It implements the erase and program Flash memory operations
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20 and the read and write protection mechanisms.
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21
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22 [..] The Flash memory interface accelerates code execution with a system of instruction
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23 prefetch.
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24
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25 [..] The FLASH main features are:
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26 (+) Flash memory read operations
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27 (+) Flash memory program/erase operations
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28 (+) Read / write protections
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29 (+) Prefetch on I-Code
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30 (+) Option Bytes programming
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31
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32
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33 ##### How to use this driver #####
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34 ==============================================================================
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35 [..]
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36 This driver provides functions and macros to configure and program the FLASH
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37 memory of all STM32F1xx devices.
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38
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39 (#) FLASH Memory I/O Programming functions: this group includes all needed
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40 functions to erase and program the main memory:
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41 (++) Lock and Unlock the FLASH interface
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42 (++) Erase function: Erase page, erase all pages
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43 (++) Program functions: half word, word and doubleword
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44
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45 (#) FLASH Option Bytes Programming functions: this group includes all needed
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46 functions to manage the Option Bytes:
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47 (++) Lock and Unlock the Option Bytes
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48 (++) Set/Reset the write protection
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49 (++) Set the Read protection Level
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50 (++) Program the user Option Bytes
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51 (++) Launch the Option Bytes loader
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52 (++) Erase Option Bytes
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53 (++) Program the data Option Bytes
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54 (++) Get the Write protection.
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55 (++) Get the user option bytes.
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56
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57 (#) Interrupts and flags management functions : this group
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58 includes all needed functions to:
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59 (++) Handle FLASH interrupts
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60 (++) Wait for last FLASH operation according to its status
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61 (++) Get error flag status
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62
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63 [..] In addition to these function, this driver includes a set of macros allowing
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64 to handle the following operations:
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65
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66 (+) Set/Get the latency
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67 (+) Enable/Disable the prefetch buffer
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68 (+) Enable/Disable the half cycle access
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69 (+) Enable/Disable the FLASH interrupts
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70 (+) Monitor the FLASH flags status
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71
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72 @endverbatim
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73 ******************************************************************************
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74 * @attention
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75 *
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76 * <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
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77 *
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78 * Redistribution and use in source and binary forms, with or without modification,
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79 * are permitted provided that the following conditions are met:
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80 * 1. Redistributions of source code must retain the above copyright notice,
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81 * this list of conditions and the following disclaimer.
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82 * 2. Redistributions in binary form must reproduce the above copyright notice,
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83 * this list of conditions and the following disclaimer in the documentation
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84 * and/or other materials provided with the distribution.
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85 * 3. Neither the name of STMicroelectronics nor the names of its contributors
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86 * may be used to endorse or promote products derived from this software
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87 * without specific prior written permission.
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88 *
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89 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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90 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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91 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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92 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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93 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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94 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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95 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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96 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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97 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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98 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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99 *
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100 ******************************************************************************
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101 */
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102
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103 /* Includes ------------------------------------------------------------------*/
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104 #include "stm32f1xx_hal.h"
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105
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106 /** @addtogroup STM32F1xx_HAL_Driver
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107 * @{
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108 */
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109
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110 #ifdef HAL_FLASH_MODULE_ENABLED
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111
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112 /** @defgroup FLASH FLASH
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113 * @brief FLASH HAL module driver
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114 * @{
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115 */
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116
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117 /* Private typedef -----------------------------------------------------------*/
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118 /* Private define ------------------------------------------------------------*/
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119 /** @defgroup FLASH_Private_Constants FLASH Private Constants
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120 * @{
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121 */
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122 /**
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123 * @}
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124 */
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125
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126 /* Private macro ---------------------------- ---------------------------------*/
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127 /** @defgroup FLASH_Private_Macros FLASH Private Macros
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128 * @{
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129 */
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130
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131 /**
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132 * @}
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133 */
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134
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135 /* Private variables ---------------------------------------------------------*/
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136 /** @defgroup FLASH_Private_Variables FLASH Private Variables
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137 * @{
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138 */
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139 /* Variables used for Erase pages under interruption*/
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140 FLASH_ProcessTypeDef pFlash;
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141 /**
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142 * @}
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143 */
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144
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145 /* Private function prototypes -----------------------------------------------*/
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146 /** @defgroup FLASH_Private_Functions FLASH Private Functions
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147 * @{
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148 */
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149 static void FLASH_Program_HalfWord(uint32_t Address, uint16_t Data);
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150 static void FLASH_SetErrorCode(void);
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151 /**
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152 * @}
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153 */
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154
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155 /* Exported functions ---------------------------------------------------------*/
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156 /** @defgroup FLASH_Exported_Functions FLASH Exported Functions
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157 * @{
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158 */
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159
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160 /** @defgroup FLASH_Exported_Functions_Group1 Programming operation functions
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161 * @brief Programming operation functions
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162 *
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163 @verbatim
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164 @endverbatim
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165 * @{
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166 */
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167
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168 /**
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169 * @brief Program halfword, word or double word at a specified address
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170 * @note The function HAL_FLASH_Unlock() should be called before to unlock the FLASH interface
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171 * The function HAL_FLASH_Lock() should be called after to lock the FLASH interface
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172 *
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173 * @note If an erase and a program operations are requested simultaneously,
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174 * the erase operation is performed before the program one.
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175 *
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176 * @note FLASH should be previously erased before new programmation (only exception to this
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177 * is when 0x0000 is programmed)
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178 *
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179 * @param TypeProgram: Indicate the way to program at a specified address.
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180 * This parameter can be a value of @ref FLASH_Type_Program
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181 * @param Address: Specifies the address to be programmed.
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182 * @param Data: Specifies the data to be programmed
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183 *
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184 * @retval HAL_StatusTypeDef HAL Status
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185 */
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186 HAL_StatusTypeDef HAL_FLASH_Program(uint32_t TypeProgram, uint32_t Address, uint64_t Data)
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187 {
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188 HAL_StatusTypeDef status = HAL_ERROR;
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189 uint8_t index = 0;
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190 uint8_t nbiterations = 0;
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191
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192 /* Process Locked */
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193 __HAL_LOCK(&pFlash);
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194
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195 /* Check the parameters */
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196 assert_param(IS_FLASH_TYPEPROGRAM(TypeProgram));
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197 assert_param(IS_FLASH_PROGRAM_ADDRESS(Address));
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198
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199 #if defined(FLASH_BANK2_END)
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200 if(Address <= FLASH_BANK1_END)
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201 {
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202 #endif /* FLASH_BANK2_END */
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203 /* Wait for last operation to be completed */
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204 status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
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205 #if defined(FLASH_BANK2_END)
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206 }
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207 else
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208 {
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209 /* Wait for last operation to be completed */
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210 status = FLASH_WaitForLastOperationBank2((uint32_t)FLASH_TIMEOUT_VALUE);
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211 }
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212 #endif /* FLASH_BANK2_END */
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213
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214 if(status == HAL_OK)
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215 {
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216 if(TypeProgram == FLASH_TYPEPROGRAM_HALFWORD)
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217 {
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218 /* Program halfword (16-bit) at a specified address. */
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219 nbiterations = 1;
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220 }
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221 else if(TypeProgram == FLASH_TYPEPROGRAM_WORD)
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222 {
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223 /* Program word (32-bit = 2*16-bit) at a specified address. */
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224 nbiterations = 2;
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225 }
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226 else
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227 {
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228 /* Program double word (64-bit = 4*16-bit) at a specified address. */
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229 nbiterations = 4;
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230 }
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231
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232 for (index = 0; index < nbiterations; index++)
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233 {
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234 FLASH_Program_HalfWord((Address + (2*index)), (uint16_t)(Data >> (16*index)));
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235
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236 #if defined(FLASH_BANK2_END)
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237 if(Address <= FLASH_BANK1_END)
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238 {
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239 #endif /* FLASH_BANK2_END */
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240 /* Wait for last operation to be completed */
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241 status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
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242
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243 /* If the program operation is completed, disable the PG Bit */
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244 CLEAR_BIT(FLASH->CR, FLASH_CR_PG);
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245 #if defined(FLASH_BANK2_END)
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246 }
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247 else
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248 {
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249 /* Wait for last operation to be completed */
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250 status = FLASH_WaitForLastOperationBank2((uint32_t)FLASH_TIMEOUT_VALUE);
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251
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252 /* If the program operation is completed, disable the PG Bit */
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253 CLEAR_BIT(FLASH->CR2, FLASH_CR2_PG);
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254 }
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255 #endif /* FLASH_BANK2_END */
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256 /* In case of error, stop programation procedure */
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257 if (status != HAL_OK)
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258 {
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259 break;
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260 }
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261 }
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262 }
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263
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264 /* Process Unlocked */
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265 __HAL_UNLOCK(&pFlash);
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266
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267 return status;
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268 }
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269
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270 /**
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271 * @brief Program halfword, word or double word at a specified address with interrupt enabled.
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272 * @note The function HAL_FLASH_Unlock() should be called before to unlock the FLASH interface
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273 * The function HAL_FLASH_Lock() should be called after to lock the FLASH interface
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274 *
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275 * @note If an erase and a program operations are requested simultaneously,
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276 * the erase operation is performed before the program one.
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277 *
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278 * @param TypeProgram: Indicate the way to program at a specified address.
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279 * This parameter can be a value of @ref FLASH_Type_Program
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280 * @param Address: Specifies the address to be programmed.
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281 * @param Data: Specifies the data to be programmed
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282 *
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283 * @retval HAL_StatusTypeDef HAL Status
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284 */
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285 HAL_StatusTypeDef HAL_FLASH_Program_IT(uint32_t TypeProgram, uint32_t Address, uint64_t Data)
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286 {
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287 HAL_StatusTypeDef status = HAL_OK;
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288
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289 /* Process Locked */
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290 __HAL_LOCK(&pFlash);
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291
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292 /* Check the parameters */
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293 assert_param(IS_FLASH_TYPEPROGRAM(TypeProgram));
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294 assert_param(IS_FLASH_PROGRAM_ADDRESS(Address));
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295
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296 #if defined(FLASH_BANK2_END)
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297 /* If procedure already ongoing, reject the next one */
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298 if (pFlash.ProcedureOnGoing != FLASH_PROC_NONE)
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299 {
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300 return HAL_ERROR;
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301 }
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302
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303 if(Address <= FLASH_BANK1_END)
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304 {
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305 /* Enable End of FLASH Operation and Error source interrupts */
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306 __HAL_FLASH_ENABLE_IT(FLASH_IT_EOP_BANK1 | FLASH_IT_ERR_BANK1);
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307
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308 }else
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309 {
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310 /* Enable End of FLASH Operation and Error source interrupts */
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311 __HAL_FLASH_ENABLE_IT(FLASH_IT_EOP_BANK2 | FLASH_IT_ERR_BANK2);
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312 }
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313 #else
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314 /* Enable End of FLASH Operation and Error source interrupts */
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315 __HAL_FLASH_ENABLE_IT(FLASH_IT_EOP | FLASH_IT_ERR);
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316 #endif /* FLASH_BANK2_END */
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317
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318 pFlash.Address = Address;
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319 pFlash.Data = Data;
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320
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321 if(TypeProgram == FLASH_TYPEPROGRAM_HALFWORD)
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322 {
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323 pFlash.ProcedureOnGoing = FLASH_PROC_PROGRAMHALFWORD;
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324 /*Program halfword (16-bit) at a specified address.*/
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325 pFlash.DataRemaining = 1;
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326 }
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327 else if(TypeProgram == FLASH_TYPEPROGRAM_WORD)
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328 {
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329 pFlash.ProcedureOnGoing = FLASH_PROC_PROGRAMWORD;
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330 /*Program word (32-bit : 2*16-bit) at a specified address.*/
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331 pFlash.DataRemaining = 2;
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332 }
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333 else
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334 {
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335 pFlash.ProcedureOnGoing = FLASH_PROC_PROGRAMDOUBLEWORD;
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336 /*Program double word (64-bit : 4*16-bit) at a specified address.*/
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337 pFlash.DataRemaining = 4;
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338 }
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339
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340 /*Program halfword (16-bit) at a specified address.*/
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341 FLASH_Program_HalfWord(Address, (uint16_t)Data);
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342
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343 return status;
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344 }
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345
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346 /**
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347 * @brief This function handles FLASH interrupt request.
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348 * @retval None
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349 */
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350 void HAL_FLASH_IRQHandler(void)
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351 {
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352 uint32_t addresstmp = 0;
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353
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354 /* Check FLASH operation error flags */
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355 #if defined(FLASH_BANK2_END)
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356 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR_BANK1) || __HAL_FLASH_GET_FLAG(FLASH_FLAG_PGERR_BANK1) || \
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357 (__HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR_BANK2) || __HAL_FLASH_GET_FLAG(FLASH_FLAG_PGERR_BANK2)))
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358 #else
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359 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR) ||__HAL_FLASH_GET_FLAG(FLASH_FLAG_PGERR))
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360 #endif /* FLASH_BANK2_END */
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361 {
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362 /*return the faulty address*/
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363 addresstmp = pFlash.Address;
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364 /* Reset address */
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365 pFlash.Address = 0xFFFFFFFF;
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366
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367 /*Save the Error code*/
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368 FLASH_SetErrorCode();
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369
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370 /* FLASH error interrupt user callback */
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371 HAL_FLASH_OperationErrorCallback(addresstmp);
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372
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373 /* Stop the procedure ongoing*/
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374 pFlash.ProcedureOnGoing = FLASH_PROC_NONE;
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375 }
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376
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377 /* Check FLASH End of Operation flag */
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378 #if defined(FLASH_BANK2_END)
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379 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_EOP_BANK1))
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380 {
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381 /* Clear FLASH End of Operation pending bit */
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382 __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP_BANK1);
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383 #else
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384 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_EOP))
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385 {
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386 /* Clear FLASH End of Operation pending bit */
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387 __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP);
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388 #endif /* FLASH_BANK2_END */
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389
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390 /* Process can continue only if no error detected */
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391 if(pFlash.ProcedureOnGoing != FLASH_PROC_NONE)
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392 {
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393 if(pFlash.ProcedureOnGoing == FLASH_PROC_PAGEERASE)
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394 {
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395 /* Nb of pages to erased can be decreased */
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396 pFlash.DataRemaining--;
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397
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398 /* Check if there are still pages to erase*/
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399 if(pFlash.DataRemaining != 0)
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400 {
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401 addresstmp = pFlash.Address;
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402 /*Indicate user which sector has been erased*/
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403 HAL_FLASH_EndOfOperationCallback(addresstmp);
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404
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405 /*Increment sector number*/
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406 addresstmp = pFlash.Address + FLASH_PAGE_SIZE;
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407 pFlash.Address = addresstmp;
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408
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409 /* If the erase operation is completed, disable the PER Bit */
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|
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410 CLEAR_BIT(FLASH->CR, FLASH_CR_PER);
|
|
|
411
|
|
|
412 FLASH_PageErase(addresstmp);
|
|
|
413 }
|
|
|
414 else
|
|
|
415 {
|
|
|
416 /*No more pages to Erase, user callback can be called.*/
|
|
|
417 /*Reset Sector and stop Erase pages procedure*/
|
|
|
418 pFlash.Address = addresstmp = 0xFFFFFFFF;
|
|
|
419 pFlash.ProcedureOnGoing = FLASH_PROC_NONE;
|
|
|
420 /* FLASH EOP interrupt user callback */
|
|
|
421 HAL_FLASH_EndOfOperationCallback(addresstmp);
|
|
|
422 }
|
|
|
423 }
|
|
|
424 else if(pFlash.ProcedureOnGoing == FLASH_PROC_MASSERASE)
|
|
|
425 {
|
|
|
426 /* Operation is completed, disable the MER Bit */
|
|
|
427 CLEAR_BIT(FLASH->CR, FLASH_CR_MER);
|
|
|
428
|
|
|
429 #if defined(FLASH_BANK2_END)
|
|
|
430 /* Stop Mass Erase procedure if no pending mass erase on other bank */
|
|
|
431 if (HAL_IS_BIT_CLR(FLASH->CR2, FLASH_CR2_MER))
|
|
|
432 {
|
|
|
433 #endif /* FLASH_BANK2_END */
|
|
|
434 /* MassErase ended. Return the selected bank*/
|
|
|
435 /* FLASH EOP interrupt user callback */
|
|
|
436 HAL_FLASH_EndOfOperationCallback(0);
|
|
|
437
|
|
|
438 /* Stop Mass Erase procedure*/
|
|
|
439 pFlash.ProcedureOnGoing = FLASH_PROC_NONE;
|
|
|
440 }
|
|
|
441 #if defined(FLASH_BANK2_END)
|
|
|
442 }
|
|
|
443 #endif /* FLASH_BANK2_END */
|
|
|
444 else
|
|
|
445 {
|
|
|
446 /* Nb of 16-bit data to program can be decreased */
|
|
|
447 pFlash.DataRemaining--;
|
|
|
448
|
|
|
449 /* Check if there are still 16-bit data to program */
|
|
|
450 if(pFlash.DataRemaining != 0)
|
|
|
451 {
|
|
|
452 /* Increment address to 16-bit */
|
|
|
453 pFlash.Address += 2;
|
|
|
454 addresstmp = pFlash.Address;
|
|
|
455
|
|
|
456 /* Shift to have next 16-bit data */
|
|
|
457 pFlash.Data = (pFlash.Data >> 16);
|
|
|
458
|
|
|
459 /* Operation is completed, disable the PG Bit */
|
|
|
460 CLEAR_BIT(FLASH->CR, FLASH_CR_PG);
|
|
|
461
|
|
|
462 /*Program halfword (16-bit) at a specified address.*/
|
|
|
463 FLASH_Program_HalfWord(addresstmp, (uint16_t)pFlash.Data);
|
|
|
464 }
|
|
|
465 else
|
|
|
466 {
|
|
|
467 /*Program ended. Return the selected address*/
|
|
|
468 /* FLASH EOP interrupt user callback */
|
|
|
469 if (pFlash.ProcedureOnGoing == FLASH_PROC_PROGRAMHALFWORD)
|
|
|
470 {
|
|
|
471 HAL_FLASH_EndOfOperationCallback(pFlash.Address);
|
|
|
472 }
|
|
|
473 else if (pFlash.ProcedureOnGoing == FLASH_PROC_PROGRAMWORD)
|
|
|
474 {
|
|
|
475 HAL_FLASH_EndOfOperationCallback(pFlash.Address - 2);
|
|
|
476 }
|
|
|
477 else
|
|
|
478 {
|
|
|
479 HAL_FLASH_EndOfOperationCallback(pFlash.Address - 6);
|
|
|
480 }
|
|
|
481
|
|
|
482 /* Reset Address and stop Program procedure*/
|
|
|
483 pFlash.Address = 0xFFFFFFFF;
|
|
|
484 pFlash.ProcedureOnGoing = FLASH_PROC_NONE;
|
|
|
485 }
|
|
|
486 }
|
|
|
487 }
|
|
|
488 }
|
|
|
489
|
|
|
490 #if defined(FLASH_BANK2_END)
|
|
|
491 /* Check FLASH End of Operation flag */
|
|
|
492 if(__HAL_FLASH_GET_FLAG( FLASH_FLAG_EOP_BANK2))
|
|
|
493 {
|
|
|
494 /* Clear FLASH End of Operation pending bit */
|
|
|
495 __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP_BANK2);
|
|
|
496
|
|
|
497 /* Process can continue only if no error detected */
|
|
|
498 if(pFlash.ProcedureOnGoing != FLASH_PROC_NONE)
|
|
|
499 {
|
|
|
500 if(pFlash.ProcedureOnGoing == FLASH_PROC_PAGEERASE)
|
|
|
501 {
|
|
|
502 /* Nb of pages to erased can be decreased */
|
|
|
503 pFlash.DataRemaining--;
|
|
|
504
|
|
|
505 /* Check if there are still pages to erase*/
|
|
|
506 if(pFlash.DataRemaining != 0)
|
|
|
507 {
|
|
|
508 /* Indicate user which page address has been erased*/
|
|
|
509 HAL_FLASH_EndOfOperationCallback(pFlash.Address);
|
|
|
510
|
|
|
511 /* Increment page address to next page */
|
|
|
512 pFlash.Address += FLASH_PAGE_SIZE;
|
|
|
513 addresstmp = pFlash.Address;
|
|
|
514
|
|
|
515 /* Operation is completed, disable the PER Bit */
|
|
|
516 CLEAR_BIT(FLASH->CR2, FLASH_CR2_PER);
|
|
|
517
|
|
|
518 FLASH_PageErase(addresstmp);
|
|
|
519 }
|
|
|
520 else
|
|
|
521 {
|
|
|
522 /*No more pages to Erase*/
|
|
|
523
|
|
|
524 /*Reset Address and stop Erase pages procedure*/
|
|
|
525 pFlash.Address = 0xFFFFFFFF;
|
|
|
526 pFlash.ProcedureOnGoing = FLASH_PROC_NONE;
|
|
|
527
|
|
|
528 /* FLASH EOP interrupt user callback */
|
|
|
529 HAL_FLASH_EndOfOperationCallback(pFlash.Address);
|
|
|
530 }
|
|
|
531 }
|
|
|
532 else if(pFlash.ProcedureOnGoing == FLASH_PROC_MASSERASE)
|
|
|
533 {
|
|
|
534 /* Operation is completed, disable the MER Bit */
|
|
|
535 CLEAR_BIT(FLASH->CR2, FLASH_CR2_MER);
|
|
|
536
|
|
|
537 if (HAL_IS_BIT_CLR(FLASH->CR, FLASH_CR_MER))
|
|
|
538 {
|
|
|
539 /* MassErase ended. Return the selected bank*/
|
|
|
540 /* FLASH EOP interrupt user callback */
|
|
|
541 HAL_FLASH_EndOfOperationCallback(0);
|
|
|
542
|
|
|
543 pFlash.ProcedureOnGoing = FLASH_PROC_NONE;
|
|
|
544 }
|
|
|
545 }
|
|
|
546 else
|
|
|
547 {
|
|
|
548 /* Nb of 16-bit data to program can be decreased */
|
|
|
549 pFlash.DataRemaining--;
|
|
|
550
|
|
|
551 /* Check if there are still 16-bit data to program */
|
|
|
552 if(pFlash.DataRemaining != 0)
|
|
|
553 {
|
|
|
554 /* Increment address to 16-bit */
|
|
|
555 pFlash.Address += 2;
|
|
|
556 addresstmp = pFlash.Address;
|
|
|
557
|
|
|
558 /* Shift to have next 16-bit data */
|
|
|
559 pFlash.Data = (pFlash.Data >> 16);
|
|
|
560
|
|
|
561 /* Operation is completed, disable the PG Bit */
|
|
|
562 CLEAR_BIT(FLASH->CR2, FLASH_CR2_PG);
|
|
|
563
|
|
|
564 /*Program halfword (16-bit) at a specified address.*/
|
|
|
565 FLASH_Program_HalfWord(addresstmp, (uint16_t)pFlash.Data);
|
|
|
566 }
|
|
|
567 else
|
|
|
568 {
|
|
|
569 /*Program ended. Return the selected address*/
|
|
|
570 /* FLASH EOP interrupt user callback */
|
|
|
571 if (pFlash.ProcedureOnGoing == FLASH_PROC_PROGRAMHALFWORD)
|
|
|
572 {
|
|
|
573 HAL_FLASH_EndOfOperationCallback(pFlash.Address);
|
|
|
574 }
|
|
|
575 else if (pFlash.ProcedureOnGoing == FLASH_PROC_PROGRAMWORD)
|
|
|
576 {
|
|
|
577 HAL_FLASH_EndOfOperationCallback(pFlash.Address-2);
|
|
|
578 }
|
|
|
579 else
|
|
|
580 {
|
|
|
581 HAL_FLASH_EndOfOperationCallback(pFlash.Address-6);
|
|
|
582 }
|
|
|
583
|
|
|
584 /* Reset Address and stop Program procedure*/
|
|
|
585 pFlash.Address = 0xFFFFFFFF;
|
|
|
586 pFlash.ProcedureOnGoing = FLASH_PROC_NONE;
|
|
|
587 }
|
|
|
588 }
|
|
|
589 }
|
|
|
590 }
|
|
|
591 #endif
|
|
|
592
|
|
|
593 if(pFlash.ProcedureOnGoing == FLASH_PROC_NONE)
|
|
|
594 {
|
|
|
595 #if defined(FLASH_BANK2_END)
|
|
|
596 /* Operation is completed, disable the PG, PER and MER Bits for both bank */
|
|
|
597 CLEAR_BIT(FLASH->CR, (FLASH_CR_PG | FLASH_CR_PER | FLASH_CR_MER));
|
|
|
598 CLEAR_BIT(FLASH->CR2, (FLASH_CR2_PG | FLASH_CR2_PER | FLASH_CR2_MER));
|
|
|
599
|
|
|
600 /* Disable End of FLASH Operation and Error source interrupts for both banks */
|
|
|
601 __HAL_FLASH_DISABLE_IT(FLASH_IT_EOP_BANK1 | FLASH_IT_ERR_BANK1 | FLASH_IT_EOP_BANK2 | FLASH_IT_ERR_BANK2);
|
|
|
602 #else
|
|
|
603 /* Operation is completed, disable the PG, PER and MER Bits */
|
|
|
604 CLEAR_BIT(FLASH->CR, (FLASH_CR_PG | FLASH_CR_PER | FLASH_CR_MER));
|
|
|
605
|
|
|
606 /* Disable End of FLASH Operation and Error source interrupts */
|
|
|
607 __HAL_FLASH_DISABLE_IT(FLASH_IT_EOP | FLASH_IT_ERR);
|
|
|
608 #endif /* FLASH_BANK2_END */
|
|
|
609
|
|
|
610 /* Process Unlocked */
|
|
|
611 __HAL_UNLOCK(&pFlash);
|
|
|
612 }
|
|
|
613 }
|
|
|
614
|
|
|
615
|
|
|
616 /**
|
|
|
617 * @brief FLASH end of operation interrupt callback
|
|
|
618 * @param ReturnValue: The value saved in this parameter depends on the ongoing procedure
|
|
|
619 * - Mass Erase: No return value expected
|
|
|
620 * - Pages Erase: Address of the page which has been erased
|
|
|
621 * (if 0xFFFFFFFF, it means that all the selected pages have been erased)
|
|
|
622 * - Program: Address which was selected for data program
|
|
|
623 * @retval none
|
|
|
624 */
|
|
|
625 __weak void HAL_FLASH_EndOfOperationCallback(uint32_t ReturnValue)
|
|
|
626 {
|
|
|
627 /* Prevent unused argument(s) compilation warning */
|
|
|
628 UNUSED(ReturnValue);
|
|
|
629 /* NOTE : This function Should not be modified, when the callback is needed,
|
|
|
630 the HAL_FLASH_EndOfOperationCallback could be implemented in the user file
|
|
|
631 */
|
|
|
632 }
|
|
|
633
|
|
|
634 /**
|
|
|
635 * @brief FLASH operation error interrupt callback
|
|
|
636 * @param ReturnValue: The value saved in this parameter depends on the ongoing procedure
|
|
|
637 * - Mass Erase: No return value expected
|
|
|
638 * - Pages Erase: Address of the page which returned an error
|
|
|
639 * - Program: Address which was selected for data program
|
|
|
640 * @retval none
|
|
|
641 */
|
|
|
642 __weak void HAL_FLASH_OperationErrorCallback(uint32_t ReturnValue)
|
|
|
643 {
|
|
|
644 /* Prevent unused argument(s) compilation warning */
|
|
|
645 UNUSED(ReturnValue);
|
|
|
646 /* NOTE : This function Should not be modified, when the callback is needed,
|
|
|
647 the HAL_FLASH_OperationErrorCallback could be implemented in the user file
|
|
|
648 */
|
|
|
649 }
|
|
|
650
|
|
|
651 /**
|
|
|
652 * @}
|
|
|
653 */
|
|
|
654
|
|
|
655 /** @defgroup FLASH_Exported_Functions_Group2 Peripheral Control functions
|
|
|
656 * @brief management functions
|
|
|
657 *
|
|
|
658 @verbatim
|
|
|
659 ===============================================================================
|
|
|
660 ##### Peripheral Control functions #####
|
|
|
661 ===============================================================================
|
|
|
662 [..]
|
|
|
663 This subsection provides a set of functions allowing to control the FLASH
|
|
|
664 memory operations.
|
|
|
665
|
|
|
666 @endverbatim
|
|
|
667 * @{
|
|
|
668 */
|
|
|
669
|
|
|
670 /**
|
|
|
671 * @brief Unlock the FLASH control register access
|
|
|
672 * @retval HAL Status
|
|
|
673 */
|
|
|
674 HAL_StatusTypeDef HAL_FLASH_Unlock(void)
|
|
|
675 {
|
|
|
676 if (HAL_IS_BIT_SET(FLASH->CR, FLASH_CR_LOCK))
|
|
|
677 {
|
|
|
678 /* Authorize the FLASH Registers access */
|
|
|
679 WRITE_REG(FLASH->KEYR, FLASH_KEY1);
|
|
|
680 WRITE_REG(FLASH->KEYR, FLASH_KEY2);
|
|
|
681 }
|
|
|
682 else
|
|
|
683 {
|
|
|
684 return HAL_ERROR;
|
|
|
685 }
|
|
|
686
|
|
|
687 #if defined(FLASH_BANK2_END)
|
|
|
688 if (HAL_IS_BIT_SET(FLASH->CR2, FLASH_CR2_LOCK))
|
|
|
689 {
|
|
|
690 /* Authorize the FLASH BANK2 Registers access */
|
|
|
691 WRITE_REG(FLASH->KEYR2, FLASH_KEY1);
|
|
|
692 WRITE_REG(FLASH->KEYR2, FLASH_KEY2);
|
|
|
693 }
|
|
|
694 else
|
|
|
695 {
|
|
|
696 return HAL_ERROR;
|
|
|
697 }
|
|
|
698
|
|
|
699 #endif /* FLASH_BANK2_END */
|
|
|
700 return HAL_OK;
|
|
|
701 }
|
|
|
702
|
|
|
703 /**
|
|
|
704 * @brief Locks the FLASH control register access
|
|
|
705 * @retval HAL Status
|
|
|
706 */
|
|
|
707 HAL_StatusTypeDef HAL_FLASH_Lock(void)
|
|
|
708 {
|
|
|
709 /* Set the LOCK Bit to lock the FLASH Registers access */
|
|
|
710 SET_BIT(FLASH->CR, FLASH_CR_LOCK);
|
|
|
711
|
|
|
712 #if defined(FLASH_BANK2_END)
|
|
|
713 /* Set the LOCK Bit to lock the FLASH BANK2 Registers access */
|
|
|
714 SET_BIT(FLASH->CR2, FLASH_CR2_LOCK);
|
|
|
715 #endif /* FLASH_BANK2_END */
|
|
|
716
|
|
|
717 return HAL_OK;
|
|
|
718 }
|
|
|
719
|
|
|
720
|
|
|
721 /**
|
|
|
722 * @brief Unlock the FLASH Option Control Registers access.
|
|
|
723 * @retval HAL Status
|
|
|
724 */
|
|
|
725 HAL_StatusTypeDef HAL_FLASH_OB_Unlock(void)
|
|
|
726 {
|
|
|
727 if (HAL_IS_BIT_CLR(FLASH->CR, FLASH_CR_OPTWRE))
|
|
|
728 {
|
|
|
729 /* Authorizes the Option Byte register programming */
|
|
|
730 WRITE_REG(FLASH->OPTKEYR, FLASH_OPTKEY1);
|
|
|
731 WRITE_REG(FLASH->OPTKEYR, FLASH_OPTKEY2);
|
|
|
732 }
|
|
|
733 else
|
|
|
734 {
|
|
|
735 return HAL_ERROR;
|
|
|
736 }
|
|
|
737
|
|
|
738 return HAL_OK;
|
|
|
739 }
|
|
|
740
|
|
|
741 /**
|
|
|
742 * @brief Lock the FLASH Option Control Registers access.
|
|
|
743 * @retval HAL Status
|
|
|
744 */
|
|
|
745 HAL_StatusTypeDef HAL_FLASH_OB_Lock(void)
|
|
|
746 {
|
|
|
747 /* Clear the OPTWRE Bit to lock the FLASH Option Byte Registers access */
|
|
|
748 CLEAR_BIT(FLASH->CR, FLASH_CR_OPTWRE);
|
|
|
749
|
|
|
750 return HAL_OK;
|
|
|
751 }
|
|
|
752
|
|
|
753 /**
|
|
|
754 * @brief Launch the option byte loading.
|
|
|
755 * @note This function will reset automatically the MCU.
|
|
|
756 * @retval HAL_StatusTypeDef HAL Status
|
|
|
757 */
|
|
|
758 HAL_StatusTypeDef HAL_FLASH_OB_Launch(void)
|
|
|
759 {
|
|
|
760 /* Initiates a system reset request to launch the option byte loading */
|
|
|
761 HAL_NVIC_SystemReset();
|
|
|
762
|
|
|
763 return HAL_OK;
|
|
|
764 }
|
|
|
765
|
|
|
766 /**
|
|
|
767 * @}
|
|
|
768 */
|
|
|
769
|
|
|
770 /** @defgroup FLASH_Exported_Functions_Group3 Peripheral State functions
|
|
|
771 * @brief Peripheral State functions
|
|
|
772 *
|
|
|
773 @verbatim
|
|
|
774 ===============================================================================
|
|
|
775 ##### Peripheral State functions #####
|
|
|
776 ===============================================================================
|
|
|
777 [..]
|
|
|
778 This subsection permit to get in run-time the status of the FLASH peripheral.
|
|
|
779
|
|
|
780 @endverbatim
|
|
|
781 * @{
|
|
|
782 */
|
|
|
783
|
|
|
784 /**
|
|
|
785 * @brief Get the specific FLASH error flag.
|
|
|
786 * @retval FLASH_ErrorCode: The returned value can be:
|
|
|
787 * @ref FLASH_Error_Codes
|
|
|
788 */
|
|
|
789 uint32_t HAL_FLASH_GetError(void)
|
|
|
790 {
|
|
|
791 return pFlash.ErrorCode;
|
|
|
792 }
|
|
|
793 /**
|
|
|
794 * @}
|
|
|
795 */
|
|
|
796
|
|
|
797 /**
|
|
|
798 * @}
|
|
|
799 */
|
|
|
800
|
|
|
801 /** @addtogroup FLASH_Private_Functions
|
|
|
802 * @{
|
|
|
803 */
|
|
|
804
|
|
|
805 /**
|
|
|
806 * @brief Program a half-word (16-bit) at a specified address.
|
|
|
807 * @param Address: specifies the address to be programmed.
|
|
|
808 * @param Data: specifies the data to be programmed.
|
|
|
809 * @retval None
|
|
|
810 */
|
|
|
811 static void FLASH_Program_HalfWord(uint32_t Address, uint16_t Data)
|
|
|
812 {
|
|
|
813 /* Clean the error context */
|
|
|
814 pFlash.ErrorCode = HAL_FLASH_ERROR_NONE;
|
|
|
815
|
|
|
816 #if defined(FLASH_BANK2_END)
|
|
|
817 if(Address <= FLASH_BANK1_END)
|
|
|
818 {
|
|
|
819 #endif /* FLASH_BANK2_END */
|
|
|
820 /* Proceed to program the new data */
|
|
|
821 SET_BIT(FLASH->CR, FLASH_CR_PG);
|
|
|
822 #if defined(FLASH_BANK2_END)
|
|
|
823 }
|
|
|
824 else
|
|
|
825 {
|
|
|
826 /* Proceed to program the new data */
|
|
|
827 SET_BIT(FLASH->CR2, FLASH_CR2_PG);
|
|
|
828 }
|
|
|
829 #endif /* FLASH_BANK2_END */
|
|
|
830
|
|
|
831 /* Write data in the address */
|
|
|
832 *(__IO uint16_t*)Address = Data;
|
|
|
833 }
|
|
|
834
|
|
|
835 /**
|
|
|
836 * @brief Wait for a FLASH operation to complete.
|
|
|
837 * @param Timeout: maximum flash operation timeout
|
|
|
838 * @retval HAL_StatusTypeDef HAL Status
|
|
|
839 */
|
|
|
840 HAL_StatusTypeDef FLASH_WaitForLastOperation(uint32_t Timeout)
|
|
|
841 {
|
|
|
842 /* Wait for the FLASH operation to complete by polling on BUSY flag to be reset.
|
|
|
843 Even if the FLASH operation fails, the BUSY flag will be reset and an error
|
|
|
844 flag will be set */
|
|
|
845
|
|
|
846 uint32_t tickstart = HAL_GetTick();
|
|
|
847
|
|
|
848 while(__HAL_FLASH_GET_FLAG(FLASH_FLAG_BSY))
|
|
|
849 {
|
|
|
850 if (Timeout != HAL_MAX_DELAY)
|
|
|
851 {
|
|
|
852 if((Timeout == 0) || ((HAL_GetTick()-tickstart) > Timeout))
|
|
|
853 {
|
|
|
854 return HAL_TIMEOUT;
|
|
|
855 }
|
|
|
856 }
|
|
|
857 }
|
|
|
858
|
|
|
859 /* Check FLASH End of Operation flag */
|
|
|
860 if (__HAL_FLASH_GET_FLAG(FLASH_FLAG_EOP))
|
|
|
861 {
|
|
|
862 /* Clear FLASH End of Operation pending bit */
|
|
|
863 __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP);
|
|
|
864 }
|
|
|
865
|
|
|
866 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR) ||
|
|
|
867 __HAL_FLASH_GET_FLAG(FLASH_FLAG_OPTVERR) ||
|
|
|
868 __HAL_FLASH_GET_FLAG(FLASH_FLAG_PGERR))
|
|
|
869 {
|
|
|
870 /*Save the error code*/
|
|
|
871 FLASH_SetErrorCode();
|
|
|
872 return HAL_ERROR;
|
|
|
873 }
|
|
|
874
|
|
|
875 /* If there is no error flag set */
|
|
|
876 return HAL_OK;
|
|
|
877 }
|
|
|
878
|
|
|
879 #if defined(FLASH_BANK2_END)
|
|
|
880 /**
|
|
|
881 * @brief Wait for a FLASH BANK2 operation to complete.
|
|
|
882 * @param Timeout: maximum flash operation timeout
|
|
|
883 * @retval HAL_StatusTypeDef HAL Status
|
|
|
884 */
|
|
|
885 HAL_StatusTypeDef FLASH_WaitForLastOperationBank2(uint32_t Timeout)
|
|
|
886 {
|
|
|
887 /* Wait for the FLASH BANK2 operation to complete by polling on BUSY flag to be reset.
|
|
|
888 Even if the FLASH BANK2 operation fails, the BUSY flag will be reset and an error
|
|
|
889 flag will be set */
|
|
|
890
|
|
|
891 uint32_t tickstart = HAL_GetTick();
|
|
|
892
|
|
|
893 while(__HAL_FLASH_GET_FLAG(FLASH_FLAG_BSY_BANK2))
|
|
|
894 {
|
|
|
895 if (Timeout != HAL_MAX_DELAY)
|
|
|
896 {
|
|
|
897 if((Timeout == 0) || ((HAL_GetTick()-tickstart) > Timeout))
|
|
|
898 {
|
|
|
899 return HAL_TIMEOUT;
|
|
|
900 }
|
|
|
901 }
|
|
|
902 }
|
|
|
903
|
|
|
904 /* Check FLASH End of Operation flag */
|
|
|
905 if (__HAL_FLASH_GET_FLAG(FLASH_FLAG_EOP_BANK2))
|
|
|
906 {
|
|
|
907 /* Clear FLASH End of Operation pending bit */
|
|
|
908 __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP_BANK2);
|
|
|
909 }
|
|
|
910
|
|
|
911 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR_BANK2) || __HAL_FLASH_GET_FLAG(FLASH_FLAG_PGERR_BANK2))
|
|
|
912 {
|
|
|
913 /*Save the error code*/
|
|
|
914 FLASH_SetErrorCode();
|
|
|
915 return HAL_ERROR;
|
|
|
916 }
|
|
|
917
|
|
|
918 /* If there is an error flag set */
|
|
|
919 return HAL_OK;
|
|
|
920
|
|
|
921 }
|
|
|
922 #endif /* FLASH_BANK2_END */
|
|
|
923
|
|
|
924 /**
|
|
|
925 * @brief Set the specific FLASH error flag.
|
|
|
926 * @retval None
|
|
|
927 */
|
|
|
928 static void FLASH_SetErrorCode(void)
|
|
|
929 {
|
|
|
930 #if defined(FLASH_BANK2_END)
|
|
|
931 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR) || __HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR_BANK2))
|
|
|
932 #else
|
|
|
933 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR))
|
|
|
934 #endif /* FLASH_BANK2_END */
|
|
|
935 {
|
|
|
936 pFlash.ErrorCode |= HAL_FLASH_ERROR_WRP;
|
|
|
937 }
|
|
|
938 #if defined(FLASH_BANK2_END)
|
|
|
939 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_PGERR) || __HAL_FLASH_GET_FLAG(FLASH_FLAG_PGERR_BANK2))
|
|
|
940 #else
|
|
|
941 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_PGERR))
|
|
|
942 #endif /* FLASH_BANK2_END */
|
|
|
943 {
|
|
|
944 pFlash.ErrorCode |= HAL_FLASH_ERROR_PROG;
|
|
|
945 }
|
|
|
946
|
|
|
947 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_OPTVERR))
|
|
|
948 {
|
|
|
949 pFlash.ErrorCode |= HAL_FLASH_ERROR_OPTV;
|
|
|
950 __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_OPTVERR);
|
|
|
951 }
|
|
|
952
|
|
|
953 /* Clear FLASH error pending bits */
|
|
|
954 #if defined(FLASH_BANK2_END)
|
|
|
955 __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_WRPERR | FLASH_FLAG_WRPERR_BANK2 | FLASH_FLAG_PGERR | FLASH_FLAG_PGERR_BANK2);
|
|
|
956 #else
|
|
|
957 __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_WRPERR | FLASH_FLAG_PGERR);
|
|
|
958 #endif /* FLASH_BANK2_END */
|
|
|
959 }
|
|
|
960 /**
|
|
|
961 * @}
|
|
|
962 */
|
|
|
963
|
|
|
964 /**
|
|
|
965 * @}
|
|
|
966 */
|
|
|
967
|
|
|
968 #endif /* HAL_FLASH_MODULE_ENABLED */
|
|
|
969
|
|
|
970 /**
|
|
|
971 * @}
|
|
|
972 */
|
|
|
973
|
|
|
974 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|
