en 129 / mbed-dev

fix LPC812 PWM

Dependents:   IR_LED_Send

Fork of mbed-dev by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32L0/stm32l0xx_hal_flash_ramfunc.c@129:2e517c56bcfb, 2016-05-16 (annotated)

Committer:
nameless129
Date:
Mon May 16 16:50:30 2016 +0000
Revision:
129:2e517c56bcfb
Parent:
113:b3775bf36a83 
PWM Fix:Duty 0%??H???????????????

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 0:9b334a45a8ff 1 /**
bogdanm 0:9b334a45a8ff 2 ******************************************************************************
bogdanm 0:9b334a45a8ff 3 * @file stm32l0xx_hal_flash_ramfunc.c
bogdanm 0:9b334a45a8ff 4 * @author MCD Application Team
mbed_official 113:b3775bf36a83 5 * @version V1.5.0
mbed_official 113:b3775bf36a83 6 * @date 8-January-2016
bogdanm 0:9b334a45a8ff 7 * @brief FLASH RAMFUNC driver.
bogdanm 0:9b334a45a8ff 8 * This file provides a Flash firmware functions which should be
bogdanm 0:9b334a45a8ff 9 * executed from internal SRAM
bogdanm 0:9b334a45a8ff 10 *
bogdanm 0:9b334a45a8ff 11 * @verbatim
bogdanm 0:9b334a45a8ff 12
bogdanm 0:9b334a45a8ff 13 *** ARM Compiler ***
bogdanm 0:9b334a45a8ff 14 --------------------
bogdanm 0:9b334a45a8ff 15 [..] RAM functions are defined using the toolchain options.
bogdanm 0:9b334a45a8ff 16 Functions that are be executed in RAM should reside in a separate
bogdanm 0:9b334a45a8ff 17 source module. Using the 'Options for File' dialog you can simply change
bogdanm 0:9b334a45a8ff 18 the 'Code / Const' area of a module to a memory space in physical RAM.
bogdanm 0:9b334a45a8ff 19 Available memory areas are declared in the 'Target' tab of the
bogdanm 0:9b334a45a8ff 20 Options for Target' dialog.
bogdanm 0:9b334a45a8ff 21
bogdanm 0:9b334a45a8ff 22 *** ICCARM Compiler ***
bogdanm 0:9b334a45a8ff 23 -----------------------
bogdanm 0:9b334a45a8ff 24 [..] RAM functions are defined using a specific toolchain keyword "__ramfunc".
bogdanm 0:9b334a45a8ff 25
bogdanm 0:9b334a45a8ff 26 *** GNU Compiler ***
bogdanm 0:9b334a45a8ff 27 --------------------
bogdanm 0:9b334a45a8ff 28 [..] RAM functions are defined using a specific toolchain attribute
bogdanm 0:9b334a45a8ff 29 "__attribute__((section(".RamFunc")))".
bogdanm 0:9b334a45a8ff 30
bogdanm 0:9b334a45a8ff 31 @endverbatim
bogdanm 0:9b334a45a8ff 32 ******************************************************************************
bogdanm 0:9b334a45a8ff 33 * @attention
bogdanm 0:9b334a45a8ff 34 *
mbed_official 113:b3775bf36a83 35 * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
bogdanm 0:9b334a45a8ff 36 *
bogdanm 0:9b334a45a8ff 37 * Redistribution and use in source and binary forms, with or without modification,
bogdanm 0:9b334a45a8ff 38 * are permitted provided that the following conditions are met:
bogdanm 0:9b334a45a8ff 39 * 1. Redistributions of source code must retain the above copyright notice,
bogdanm 0:9b334a45a8ff 40 * this list of conditions and the following disclaimer.
bogdanm 0:9b334a45a8ff 41 * 2. Redistributions in binary form must reproduce the above copyright notice,
bogdanm 0:9b334a45a8ff 42 * this list of conditions and the following disclaimer in the documentation
bogdanm 0:9b334a45a8ff 43 * and/or other materials provided with the distribution.
bogdanm 0:9b334a45a8ff 44 * 3. Neither the name of STMicroelectronics nor the names of its contributors
bogdanm 0:9b334a45a8ff 45 * may be used to endorse or promote products derived from this software
bogdanm 0:9b334a45a8ff 46 * without specific prior written permission.
bogdanm 0:9b334a45a8ff 47 *
bogdanm 0:9b334a45a8ff 48 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
bogdanm 0:9b334a45a8ff 49 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
bogdanm 0:9b334a45a8ff 50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
bogdanm 0:9b334a45a8ff 51 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
bogdanm 0:9b334a45a8ff 52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
bogdanm 0:9b334a45a8ff 53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
bogdanm 0:9b334a45a8ff 54 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
bogdanm 0:9b334a45a8ff 55 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
bogdanm 0:9b334a45a8ff 56 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
bogdanm 0:9b334a45a8ff 57 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
bogdanm 0:9b334a45a8ff 58 *
bogdanm 0:9b334a45a8ff 59 ******************************************************************************
bogdanm 0:9b334a45a8ff 60 */
bogdanm 0:9b334a45a8ff 61
bogdanm 0:9b334a45a8ff 62 /* Includes ------------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 63 #include "stm32l0xx_hal.h"
bogdanm 0:9b334a45a8ff 64
bogdanm 0:9b334a45a8ff 65 /** @addtogroup STM32L0xx_HAL_Driver
bogdanm 0:9b334a45a8ff 66 * @{
bogdanm 0:9b334a45a8ff 67 */
bogdanm 0:9b334a45a8ff 68
mbed_official 113:b3775bf36a83 69 #ifdef HAL_FLASH_MODULE_ENABLED
mbed_official 113:b3775bf36a83 70
mbed_official 113:b3775bf36a83 71
mbed_official 113:b3775bf36a83 72 /** @addtogroup FLASH_RAMFUNC
bogdanm 0:9b334a45a8ff 73 * @brief FLASH functions executed from RAM
bogdanm 0:9b334a45a8ff 74 * @{
bogdanm 0:9b334a45a8ff 75 */
mbed_official 113:b3775bf36a83 76 /** @addtogroup FLASH_RAMFUNC_Private
mbed_official 113:b3775bf36a83 77 * @{
mbed_official 113:b3775bf36a83 78 */
bogdanm 0:9b334a45a8ff 79
bogdanm 0:9b334a45a8ff 80 /* Private typedef -----------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 81 /* Private define ------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 82 /* Private macro -------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 83 /* Private variables ---------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 84 /* Private function prototypes -----------------------------------------------*/
bogdanm 0:9b334a45a8ff 85 static __RAM_FUNC FLASHRAM_WaitForLastOperation(uint32_t Timeout);
bogdanm 0:9b334a45a8ff 86 static __RAM_FUNC FLASHRAM_SetErrorCode(void);
mbed_official 113:b3775bf36a83 87 /**
mbed_official 113:b3775bf36a83 88 * @}
mbed_official 113:b3775bf36a83 89 */
bogdanm 0:9b334a45a8ff 90
bogdanm 0:9b334a45a8ff 91
mbed_official 113:b3775bf36a83 92 /** @addtogroup FLASH_RAMFUNC_Exported_Functions
bogdanm 0:9b334a45a8ff 93 *
bogdanm 0:9b334a45a8ff 94 @verbatim
bogdanm 0:9b334a45a8ff 95 ===============================================================================
bogdanm 0:9b334a45a8ff 96 ##### ramfunc functions #####
bogdanm 0:9b334a45a8ff 97 ===============================================================================
bogdanm 0:9b334a45a8ff 98 [..]
bogdanm 0:9b334a45a8ff 99 This subsection provides a set of functions that should be executed from RAM
bogdanm 0:9b334a45a8ff 100 transfers.
bogdanm 0:9b334a45a8ff 101
bogdanm 0:9b334a45a8ff 102 @endverbatim
bogdanm 0:9b334a45a8ff 103 * @{
bogdanm 0:9b334a45a8ff 104 */
bogdanm 0:9b334a45a8ff 105
mbed_official 113:b3775bf36a83 106 /** @addtogroup FLASH_RAMFUNC_Exported_Functions_Group1
bogdanm 0:9b334a45a8ff 107 * @{
bogdanm 0:9b334a45a8ff 108 */
bogdanm 0:9b334a45a8ff 109
bogdanm 0:9b334a45a8ff 110 /**
bogdanm 0:9b334a45a8ff 111 * @brief Enable the power down mode during RUN mode.
bogdanm 0:9b334a45a8ff 112 * @note This function can be used only when the user code is running from Internal SRAM.
mbed_official 113:b3775bf36a83 113 * @retval HAL Status
bogdanm 0:9b334a45a8ff 114 */
bogdanm 0:9b334a45a8ff 115 __RAM_FUNC HAL_FLASHEx_EnableRunPowerDown(void)
bogdanm 0:9b334a45a8ff 116 {
bogdanm 0:9b334a45a8ff 117 /* Enable the Power Down in Run mode*/
bogdanm 0:9b334a45a8ff 118 __HAL_FLASH_POWER_DOWN_ENABLE();
bogdanm 0:9b334a45a8ff 119 return HAL_OK;
bogdanm 0:9b334a45a8ff 120 }
bogdanm 0:9b334a45a8ff 121
bogdanm 0:9b334a45a8ff 122 /**
bogdanm 0:9b334a45a8ff 123 * @brief Disable the power down mode during RUN mode.
bogdanm 0:9b334a45a8ff 124 * @note This function can be used only when the user code is running from Internal SRAM.
mbed_official 113:b3775bf36a83 125 * @retval HAL Status
bogdanm 0:9b334a45a8ff 126 */
bogdanm 0:9b334a45a8ff 127 __RAM_FUNC HAL_FLASHEx_DisableRunPowerDown(void)
bogdanm 0:9b334a45a8ff 128 {
bogdanm 0:9b334a45a8ff 129 /* Disable the Power Down in Run mode*/
bogdanm 0:9b334a45a8ff 130 __HAL_FLASH_POWER_DOWN_DISABLE();
bogdanm 0:9b334a45a8ff 131 return HAL_OK;
bogdanm 0:9b334a45a8ff 132 }
bogdanm 0:9b334a45a8ff 133
bogdanm 0:9b334a45a8ff 134 /**
bogdanm 0:9b334a45a8ff 135 * @}
bogdanm 0:9b334a45a8ff 136 */
bogdanm 0:9b334a45a8ff 137
mbed_official 113:b3775bf36a83 138 #if defined(STM32L071xx) || defined(STM32L072xx) || defined(STM32L073xx) || defined(STM32L081xx) || defined(STM32L082xx) || defined(STM32L083xx)
mbed_official 113:b3775bf36a83 139
mbed_official 113:b3775bf36a83 140 /** @addtogroup FLASH_RAMFUNC_Exported_Functions_Group2
bogdanm 0:9b334a45a8ff 141 *
bogdanm 0:9b334a45a8ff 142 @verbatim
bogdanm 0:9b334a45a8ff 143 @endverbatim
bogdanm 0:9b334a45a8ff 144 * @{
bogdanm 0:9b334a45a8ff 145 */
bogdanm 0:9b334a45a8ff 146
bogdanm 0:9b334a45a8ff 147 /**
bogdanm 0:9b334a45a8ff 148 * @brief Erases a specified 2 pages in program memory in parallel.
bogdanm 0:9b334a45a8ff 149 * @note This function can be used only for STM32L07xxx/STM32L08xxx devices.
bogdanm 0:9b334a45a8ff 150 * To correctly run this function, the HAL_FLASH_Unlock() function
bogdanm 0:9b334a45a8ff 151 * must be called before.
bogdanm 0:9b334a45a8ff 152 * Call the HAL_FLASH_Lock() to disable the flash memory access
bogdanm 0:9b334a45a8ff 153 * (recommended to protect the FLASH memory against possible unwanted operation).
bogdanm 0:9b334a45a8ff 154 * @param Page_Address1: The page address in program memory to be erased in
bogdanm 0:9b334a45a8ff 155 * the first Bank (BANK1). This parameter should be between FLASH_BASE
bogdanm 0:9b334a45a8ff 156 * and FLASH_BANK1_END.
bogdanm 0:9b334a45a8ff 157 * @param Page_Address2: The page address in program memory to be erased in
bogdanm 0:9b334a45a8ff 158 * the second Bank (BANK2). This parameter should be between FLASH_BANK2_BASE
bogdanm 0:9b334a45a8ff 159 * and FLASH_BANK2_END.
bogdanm 0:9b334a45a8ff 160 * @note A Page is erased in the Program memory only if the address to load
bogdanm 0:9b334a45a8ff 161 * is the start address of a page (multiple of 128 bytes).
bogdanm 0:9b334a45a8ff 162 * @retval HAL Status: The returned value can be:
bogdanm 0:9b334a45a8ff 163 * HAL_ERROR, HAL_OK or HAL_TIMEOUT.
bogdanm 0:9b334a45a8ff 164 */
bogdanm 0:9b334a45a8ff 165 __RAM_FUNC HAL_FLASHEx_EraseParallelPage(uint32_t Page_Address1, uint32_t Page_Address2)
bogdanm 0:9b334a45a8ff 166 {
bogdanm 0:9b334a45a8ff 167 HAL_StatusTypeDef status = HAL_OK;
bogdanm 0:9b334a45a8ff 168
bogdanm 0:9b334a45a8ff 169 /* Wait for last operation to be completed */
bogdanm 0:9b334a45a8ff 170 status = FLASHRAM_WaitForLastOperation(FLASH_TIMEOUT_VALUE);
bogdanm 0:9b334a45a8ff 171
bogdanm 0:9b334a45a8ff 172 if(status == HAL_OK)
bogdanm 0:9b334a45a8ff 173 {
bogdanm 0:9b334a45a8ff 174 /* Proceed to erase the page */
bogdanm 0:9b334a45a8ff 175 SET_BIT(FLASH->PECR, FLASH_PECR_PARALLBANK);
bogdanm 0:9b334a45a8ff 176 SET_BIT(FLASH->PECR, FLASH_PECR_ERASE);
bogdanm 0:9b334a45a8ff 177 SET_BIT(FLASH->PECR, FLASH_PECR_PROG);
bogdanm 0:9b334a45a8ff 178
bogdanm 0:9b334a45a8ff 179 /* Write 00000000h to the first word of the first program page to erase */
bogdanm 0:9b334a45a8ff 180 *(__IO uint32_t *)Page_Address1 = 0x00000000;
bogdanm 0:9b334a45a8ff 181 /* Write 00000000h to the first word of the second program page to erase */
bogdanm 0:9b334a45a8ff 182 *(__IO uint32_t *)Page_Address2 = 0x00000000;
bogdanm 0:9b334a45a8ff 183
bogdanm 0:9b334a45a8ff 184 /* Wait for last operation to be completed */
bogdanm 0:9b334a45a8ff 185 status = FLASHRAM_WaitForLastOperation(FLASH_TIMEOUT_VALUE);
bogdanm 0:9b334a45a8ff 186
bogdanm 0:9b334a45a8ff 187 /* If the erase operation is completed, disable the ERASE, PROG and PARALLBANK bits */
bogdanm 0:9b334a45a8ff 188 CLEAR_BIT(FLASH->PECR, FLASH_PECR_PROG);
bogdanm 0:9b334a45a8ff 189 CLEAR_BIT(FLASH->PECR, FLASH_PECR_ERASE);
bogdanm 0:9b334a45a8ff 190 CLEAR_BIT(FLASH->PECR, FLASH_PECR_PARALLBANK);
bogdanm 0:9b334a45a8ff 191 }
bogdanm 0:9b334a45a8ff 192 /* Return the erasesStatus */
bogdanm 0:9b334a45a8ff 193 return status;
bogdanm 0:9b334a45a8ff 194 }
bogdanm 0:9b334a45a8ff 195
bogdanm 0:9b334a45a8ff 196 /**
bogdanm 0:9b334a45a8ff 197 * @brief Programs 2 half pages in program memory in parallel. The half page size is 16 Words.
bogdanm 0:9b334a45a8ff 198 * @note This function can be used only for STM32L07xxx/STM32L08xxx devices.
bogdanm 0:9b334a45a8ff 199 * @param Address1: specifies the first address to be written in the first bank
bogdanm 0:9b334a45a8ff 200 * (BANK1). This parameter should be between FLASH_BASE and (FLASH_BANK1_END - FLASH_PAGE_SIZE).
bogdanm 0:9b334a45a8ff 201 * @param pBuffer1: pointer to the buffer containing the data to be written
bogdanm 0:9b334a45a8ff 202 * to the first half page in the first bank.
bogdanm 0:9b334a45a8ff 203 * @param Address2: specifies the second address to be written in the second bank
bogdanm 0:9b334a45a8ff 204 * (BANK2). This parameter should be between FLASH_BANK2_BASE and (FLASH_BANK2_END - FLASH_PAGE_SIZE).
bogdanm 0:9b334a45a8ff 205 * @param pBuffer2: pointer to the buffer containing the data to be written
bogdanm 0:9b334a45a8ff 206 * to the second half page in the second bank.
bogdanm 0:9b334a45a8ff 207 * @note To correctly run this function, the HAL_FLASH_Unlock() function
bogdanm 0:9b334a45a8ff 208 * must be called before.
bogdanm 0:9b334a45a8ff 209 * Call the HAL_FLASH_Lock() to disable the flash memory access
bogdanm 0:9b334a45a8ff 210 * (recommended to protect the FLASH memory against possible unwanted operation).
bogdanm 0:9b334a45a8ff 211 * @note Half page write is possible only from SRAM.
bogdanm 0:9b334a45a8ff 212 * @note A half page is written to the program memory only if the first
bogdanm 0:9b334a45a8ff 213 * address to load is the start address of a half page (multiple of 64
bogdanm 0:9b334a45a8ff 214 * bytes) and the 15 remaining words to load are in the same half page.
bogdanm 0:9b334a45a8ff 215 * @note During the Program memory half page write all read operations are
bogdanm 0:9b334a45a8ff 216 * forbidden (this includes DMA read operations and debugger read
bogdanm 0:9b334a45a8ff 217 * operations such as breakpoints, periodic updates, etc.).
bogdanm 0:9b334a45a8ff 218 * @note If a PGAERR is set during a Program memory half page write, the
bogdanm 0:9b334a45a8ff 219 * complete write operation is aborted. Software should then reset the
bogdanm 0:9b334a45a8ff 220 * FPRG and PROG/DATA bits and restart the write operation from the
bogdanm 0:9b334a45a8ff 221 * beginning.
bogdanm 0:9b334a45a8ff 222 * @retval HAL Status: The returned value can be:
bogdanm 0:9b334a45a8ff 223 * HAL_ERROR, HAL_OK or HAL_TIMEOUT.
bogdanm 0:9b334a45a8ff 224 */
bogdanm 0:9b334a45a8ff 225 __RAM_FUNC HAL_FLASHEx_ProgramParallelHalfPage(uint32_t Address1, uint32_t* pBuffer1, uint32_t Address2, uint32_t* pBuffer2)
bogdanm 0:9b334a45a8ff 226 {
bogdanm 0:9b334a45a8ff 227 uint32_t count;
bogdanm 0:9b334a45a8ff 228 HAL_StatusTypeDef status;
bogdanm 0:9b334a45a8ff 229
bogdanm 0:9b334a45a8ff 230 /* Wait for last operation to be completed */
bogdanm 0:9b334a45a8ff 231 status = FLASHRAM_WaitForLastOperation(FLASH_TIMEOUT_VALUE);
bogdanm 0:9b334a45a8ff 232
bogdanm 0:9b334a45a8ff 233 if(status == HAL_OK)
bogdanm 0:9b334a45a8ff 234 {
bogdanm 0:9b334a45a8ff 235 /* Proceed to program the new half page */
bogdanm 0:9b334a45a8ff 236 SET_BIT(FLASH->PECR, FLASH_PECR_PARALLBANK);
bogdanm 0:9b334a45a8ff 237 SET_BIT(FLASH->PECR, FLASH_PECR_FPRG);
bogdanm 0:9b334a45a8ff 238 SET_BIT(FLASH->PECR, FLASH_PECR_PROG);
bogdanm 0:9b334a45a8ff 239
bogdanm 0:9b334a45a8ff 240
bogdanm 0:9b334a45a8ff 241 /* Wait for last operation to be completed */
bogdanm 0:9b334a45a8ff 242 status = FLASHRAM_WaitForLastOperation(FLASH_TIMEOUT_VALUE);
bogdanm 0:9b334a45a8ff 243
bogdanm 0:9b334a45a8ff 244 if(status == HAL_OK)
bogdanm 0:9b334a45a8ff 245 {
bogdanm 0:9b334a45a8ff 246 /* Write one half page,
bogdanm 0:9b334a45a8ff 247 Address1 doesn't need to be increased */
bogdanm 0:9b334a45a8ff 248 count = 0;
bogdanm 0:9b334a45a8ff 249
bogdanm 0:9b334a45a8ff 250 /* Disable all IRQs */
bogdanm 0:9b334a45a8ff 251 __disable_irq();
bogdanm 0:9b334a45a8ff 252
bogdanm 0:9b334a45a8ff 253 while(count < 16)
bogdanm 0:9b334a45a8ff 254 {
bogdanm 0:9b334a45a8ff 255 *(__IO uint32_t*) Address1 = *pBuffer1;
bogdanm 0:9b334a45a8ff 256 pBuffer1++;
bogdanm 0:9b334a45a8ff 257 count++;
bogdanm 0:9b334a45a8ff 258 }
bogdanm 0:9b334a45a8ff 259
bogdanm 0:9b334a45a8ff 260 /* Write the second half page,
bogdanm 0:9b334a45a8ff 261 Address2 doesn't need to be increased */
bogdanm 0:9b334a45a8ff 262 count = 0;
bogdanm 0:9b334a45a8ff 263 while(count < 16)
bogdanm 0:9b334a45a8ff 264 {
bogdanm 0:9b334a45a8ff 265 *(__IO uint32_t*) Address2 = *pBuffer2;
bogdanm 0:9b334a45a8ff 266 pBuffer2++;
bogdanm 0:9b334a45a8ff 267 count++;
bogdanm 0:9b334a45a8ff 268 }
bogdanm 0:9b334a45a8ff 269
bogdanm 0:9b334a45a8ff 270 /* Enable IRQs */
bogdanm 0:9b334a45a8ff 271 __enable_irq();
bogdanm 0:9b334a45a8ff 272
bogdanm 0:9b334a45a8ff 273 /* Wait for last operation to be completed */
bogdanm 0:9b334a45a8ff 274 status = FLASHRAM_WaitForLastOperation(FLASH_TIMEOUT_VALUE);
bogdanm 0:9b334a45a8ff 275 }
bogdanm 0:9b334a45a8ff 276 /* if the write operation is completed, disable the PROG, FPRG and PARALLBANK bits */
bogdanm 0:9b334a45a8ff 277 CLEAR_BIT(FLASH->PECR, FLASH_PECR_PROG);
bogdanm 0:9b334a45a8ff 278 CLEAR_BIT(FLASH->PECR, FLASH_PECR_FPRG);
bogdanm 0:9b334a45a8ff 279 CLEAR_BIT(FLASH->PECR, FLASH_PECR_PARALLBANK);
bogdanm 0:9b334a45a8ff 280 }
bogdanm 0:9b334a45a8ff 281 /* Return the Write Status */
bogdanm 0:9b334a45a8ff 282 return status;
bogdanm 0:9b334a45a8ff 283 }
mbed_official 113:b3775bf36a83 284 /**
mbed_official 113:b3775bf36a83 285 * @}
mbed_official 113:b3775bf36a83 286 */
bogdanm 0:9b334a45a8ff 287 #endif /* STM32L071xx || STM32L072xx || STM32L073xx || STM32L081xx || STM32L082xx || STM32L083xx */
mbed_official 113:b3775bf36a83 288
mbed_official 113:b3775bf36a83 289 /** @addtogroup FLASH_RAMFUNC_Exported_Functions_Group1
mbed_official 113:b3775bf36a83 290 *
mbed_official 113:b3775bf36a83 291 * @{
mbed_official 113:b3775bf36a83 292 */
bogdanm 0:9b334a45a8ff 293 /**
bogdanm 0:9b334a45a8ff 294 * @brief Program a half page in program memory.
bogdanm 0:9b334a45a8ff 295 * @param Address: specifies the address to be written.
bogdanm 0:9b334a45a8ff 296 * @param pBuffer: pointer to the buffer containing the data to be written to
bogdanm 0:9b334a45a8ff 297 * the half page.
bogdanm 0:9b334a45a8ff 298 * @note To correctly run this function, the HAL_FLASH_Unlock() function
bogdanm 0:9b334a45a8ff 299 * must be called before.
bogdanm 0:9b334a45a8ff 300 * Call the HAL_FLASH_Lock() to disable the flash memory access
bogdanm 0:9b334a45a8ff 301 * (recommended to protect the FLASH memory against possible unwanted operation)
bogdanm 0:9b334a45a8ff 302 * @note Half page write is possible only from SRAM.
bogdanm 0:9b334a45a8ff 303 * @note A half page is written to the program memory only if the first
bogdanm 0:9b334a45a8ff 304 * address to load is the start address of a half page (multiple of 64
bogdanm 0:9b334a45a8ff 305 * bytes) and the 15 remaining words to load are in the same half page.
bogdanm 0:9b334a45a8ff 306 * @note During the Program memory half page write all read operations are
bogdanm 0:9b334a45a8ff 307 * forbidden (this includes DMA read operations and debugger read
bogdanm 0:9b334a45a8ff 308 * operations such as breakpoints, periodic updates, etc.).
bogdanm 0:9b334a45a8ff 309 * @note If a PGAERR is set during a Program memory half page write, the
bogdanm 0:9b334a45a8ff 310 * complete write operation is aborted. Software should then reset the
bogdanm 0:9b334a45a8ff 311 * FPRG and PROG/DATA bits and restart the write operation from the
bogdanm 0:9b334a45a8ff 312 * beginning.
bogdanm 0:9b334a45a8ff 313 * @retval HAL Status: The returned value can be:
bogdanm 0:9b334a45a8ff 314 * HAL_ERROR, HAL_OK or HAL_TIMEOUT.
bogdanm 0:9b334a45a8ff 315 */
bogdanm 0:9b334a45a8ff 316 __RAM_FUNC HAL_FLASHEx_HalfPageProgram(uint32_t Address, uint32_t *pBuffer)
bogdanm 0:9b334a45a8ff 317 {
bogdanm 0:9b334a45a8ff 318 uint32_t count;
bogdanm 0:9b334a45a8ff 319 HAL_StatusTypeDef status;
bogdanm 0:9b334a45a8ff 320
bogdanm 0:9b334a45a8ff 321 /* Wait for last operation to be completed */
bogdanm 0:9b334a45a8ff 322 status = FLASHRAM_WaitForLastOperation(FLASH_TIMEOUT_VALUE);
bogdanm 0:9b334a45a8ff 323
bogdanm 0:9b334a45a8ff 324 if(status == HAL_OK)
bogdanm 0:9b334a45a8ff 325 {
bogdanm 0:9b334a45a8ff 326 /* Proceed to program the new half page */
bogdanm 0:9b334a45a8ff 327 SET_BIT(FLASH->PECR, FLASH_PECR_FPRG);
bogdanm 0:9b334a45a8ff 328 SET_BIT(FLASH->PECR, FLASH_PECR_PROG);
bogdanm 0:9b334a45a8ff 329
bogdanm 0:9b334a45a8ff 330
bogdanm 0:9b334a45a8ff 331 count = 0;
bogdanm 0:9b334a45a8ff 332 /* Write one half page,
bogdanm 0:9b334a45a8ff 333 Address doesn't need to be increased */
bogdanm 0:9b334a45a8ff 334
bogdanm 0:9b334a45a8ff 335 /* Disable all IRQs */
bogdanm 0:9b334a45a8ff 336 __disable_irq();
bogdanm 0:9b334a45a8ff 337
bogdanm 0:9b334a45a8ff 338 while(count < 16)
bogdanm 0:9b334a45a8ff 339 {
bogdanm 0:9b334a45a8ff 340 *(__IO uint32_t*) Address = *pBuffer;
bogdanm 0:9b334a45a8ff 341 pBuffer++;
bogdanm 0:9b334a45a8ff 342 count++;
bogdanm 0:9b334a45a8ff 343 }
bogdanm 0:9b334a45a8ff 344
bogdanm 0:9b334a45a8ff 345 /* Enable IRQs */
bogdanm 0:9b334a45a8ff 346 __enable_irq();
bogdanm 0:9b334a45a8ff 347
bogdanm 0:9b334a45a8ff 348 /* Wait for last operation to be completed */
bogdanm 0:9b334a45a8ff 349 status = FLASHRAM_WaitForLastOperation(FLASH_TIMEOUT_VALUE);
bogdanm 0:9b334a45a8ff 350
bogdanm 0:9b334a45a8ff 351 /* If the write operation is completed, disable the PROG and FPRG bits */
bogdanm 0:9b334a45a8ff 352 CLEAR_BIT(FLASH->PECR, FLASH_PECR_PROG);
bogdanm 0:9b334a45a8ff 353 CLEAR_BIT(FLASH->PECR, FLASH_PECR_FPRG);
bogdanm 0:9b334a45a8ff 354 }
bogdanm 0:9b334a45a8ff 355 /* Return the write status */
bogdanm 0:9b334a45a8ff 356 return status;
bogdanm 0:9b334a45a8ff 357 }
bogdanm 0:9b334a45a8ff 358
bogdanm 0:9b334a45a8ff 359 /**
bogdanm 0:9b334a45a8ff 360 * @brief Get the specific FLASH errors flag.
bogdanm 0:9b334a45a8ff 361 * @param error pointer is the error value. It can be a mixed of :
bogdanm 0:9b334a45a8ff 362 * @arg HAL_FLASH_ERROR_RD: FLASH Read Protection error flag (PCROP)
bogdanm 0:9b334a45a8ff 363 * @arg HAL_FLASH_ERROR_SIZE: FLASH Programming Parallelism error flag
bogdanm 0:9b334a45a8ff 364 * @arg HAL_FLASH_ERROR_PGA: FLASH Programming Alignment error flag
bogdanm 0:9b334a45a8ff 365 * @arg HAL_FLASH_ERROR_WRP: FLASH Write protected error flag
bogdanm 0:9b334a45a8ff 366 * @arg HAL_FLASH_ERROR_OPTV: FLASH Option valid error flag
bogdanm 0:9b334a45a8ff 367 * @arg HAL_FLASH_ERROR_FWWERR: FLASH Write or Errase operation aborted
bogdanm 0:9b334a45a8ff 368 * @arg HAL_FLASH_ERROR_NOTZERO: FLASH Write operation is done in a not-erased region
mbed_official 113:b3775bf36a83 369 * @retval HAL Status
bogdanm 0:9b334a45a8ff 370 */
bogdanm 0:9b334a45a8ff 371 __RAM_FUNC HAL_FLASHRAM_GetError(uint32_t * error)
bogdanm 0:9b334a45a8ff 372 {
bogdanm 0:9b334a45a8ff 373 *error = ProcFlash.ErrorCode;
bogdanm 0:9b334a45a8ff 374 return HAL_OK;
bogdanm 0:9b334a45a8ff 375 }
bogdanm 0:9b334a45a8ff 376
bogdanm 0:9b334a45a8ff 377 /**
bogdanm 0:9b334a45a8ff 378 * @}
bogdanm 0:9b334a45a8ff 379 */
bogdanm 0:9b334a45a8ff 380
bogdanm 0:9b334a45a8ff 381 /**
bogdanm 0:9b334a45a8ff 382 * @}
bogdanm 0:9b334a45a8ff 383 */
bogdanm 0:9b334a45a8ff 384
mbed_official 113:b3775bf36a83 385 /** @addtogroup FLASH_RAMFUNC_Private
bogdanm 0:9b334a45a8ff 386 * @{
bogdanm 0:9b334a45a8ff 387 */
bogdanm 0:9b334a45a8ff 388
bogdanm 0:9b334a45a8ff 389 /**
bogdanm 0:9b334a45a8ff 390 * @brief Set the specific FLASH error flag.
mbed_official 113:b3775bf36a83 391 * @retval HAL Status
bogdanm 0:9b334a45a8ff 392 */
bogdanm 0:9b334a45a8ff 393 static __RAM_FUNC FLASHRAM_SetErrorCode(void)
bogdanm 0:9b334a45a8ff 394 {
bogdanm 0:9b334a45a8ff 395 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR))
bogdanm 0:9b334a45a8ff 396 {
bogdanm 0:9b334a45a8ff 397 ProcFlash.ErrorCode |= HAL_FLASH_ERROR_WRP;
bogdanm 0:9b334a45a8ff 398 }
bogdanm 0:9b334a45a8ff 399 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_PGAERR))
bogdanm 0:9b334a45a8ff 400 {
bogdanm 0:9b334a45a8ff 401 ProcFlash.ErrorCode |= HAL_FLASH_ERROR_PGA;
bogdanm 0:9b334a45a8ff 402 }
bogdanm 0:9b334a45a8ff 403 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_SIZERR))
bogdanm 0:9b334a45a8ff 404 {
bogdanm 0:9b334a45a8ff 405 ProcFlash.ErrorCode |= HAL_FLASH_ERROR_SIZE;
bogdanm 0:9b334a45a8ff 406 }
bogdanm 0:9b334a45a8ff 407 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_OPTVERR))
bogdanm 0:9b334a45a8ff 408 {
mbed_official 113:b3775bf36a83 409 /* WARNING : On the first cut of STM32L031xx and STM32L041xx devices,
mbed_official 113:b3775bf36a83 410 * (RevID = 0x1000) the FLASH_FLAG_OPTVERR bit was not behaving
mbed_official 113:b3775bf36a83 411 * as expected. If the user run an application using the first
mbed_official 113:b3775bf36a83 412 * cut of the STM32L031xx device or the first cut of the STM32L041xx
mbed_official 113:b3775bf36a83 413 * device, this error should be ignored. The RevID of the device
mbed_official 113:b3775bf36a83 414 * can be retrieved via the HAL_GetREVID() function.
mbed_official 113:b3775bf36a83 415 *
mbed_official 113:b3775bf36a83 416 */
bogdanm 0:9b334a45a8ff 417 ProcFlash.ErrorCode |= HAL_FLASH_ERROR_OPTV;
bogdanm 0:9b334a45a8ff 418 }
bogdanm 0:9b334a45a8ff 419 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_RDERR))
bogdanm 0:9b334a45a8ff 420 {
bogdanm 0:9b334a45a8ff 421 ProcFlash.ErrorCode |= HAL_FLASH_ERROR_RD;
bogdanm 0:9b334a45a8ff 422 }
bogdanm 0:9b334a45a8ff 423 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_FWWERR))
bogdanm 0:9b334a45a8ff 424 {
bogdanm 0:9b334a45a8ff 425 ProcFlash.ErrorCode |= HAL_FLASH_ERROR_FWWERR;
bogdanm 0:9b334a45a8ff 426 }
bogdanm 0:9b334a45a8ff 427 if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_NOTZEROERR))
bogdanm 0:9b334a45a8ff 428 {
bogdanm 0:9b334a45a8ff 429 ProcFlash.ErrorCode |= HAL_FLASH_ERROR_NOTZERO;
bogdanm 0:9b334a45a8ff 430 }
bogdanm 0:9b334a45a8ff 431
bogdanm 0:9b334a45a8ff 432 /* Errors are now stored, clear errors flags */
mbed_official 113:b3775bf36a83 433
bogdanm 0:9b334a45a8ff 434 __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_WRPERR | FLASH_FLAG_PGAERR | FLASH_FLAG_SIZERR |
bogdanm 0:9b334a45a8ff 435 FLASH_FLAG_OPTVERR | FLASH_FLAG_RDERR | FLASH_FLAG_FWWERR |
bogdanm 0:9b334a45a8ff 436 FLASH_FLAG_NOTZEROERR);
bogdanm 0:9b334a45a8ff 437 return HAL_OK;
bogdanm 0:9b334a45a8ff 438 }
bogdanm 0:9b334a45a8ff 439
bogdanm 0:9b334a45a8ff 440
bogdanm 0:9b334a45a8ff 441 /**
bogdanm 0:9b334a45a8ff 442 * @brief Wait for a FLASH operation to complete.
bogdanm 0:9b334a45a8ff 443 * @param Timeout: maximum flash operationtimeout
bogdanm 0:9b334a45a8ff 444 * @retval HAL status
bogdanm 0:9b334a45a8ff 445 */
bogdanm 0:9b334a45a8ff 446 static __RAM_FUNC FLASHRAM_WaitForLastOperation(uint32_t Timeout)
bogdanm 0:9b334a45a8ff 447 {
bogdanm 0:9b334a45a8ff 448 /* Wait for the FLASH operation to complete by polling on BUSY flag to be reset.
bogdanm 0:9b334a45a8ff 449 Even if the FLASH operation fails, the BUSY flag will be reset and an error
bogdanm 0:9b334a45a8ff 450 flag will be set */
bogdanm 0:9b334a45a8ff 451
bogdanm 0:9b334a45a8ff 452 while(__HAL_FLASH_GET_FLAG(FLASH_FLAG_BSY) && (Timeout != 0x00))
bogdanm 0:9b334a45a8ff 453 {
bogdanm 0:9b334a45a8ff 454 Timeout--;
bogdanm 0:9b334a45a8ff 455 }
bogdanm 0:9b334a45a8ff 456
bogdanm 0:9b334a45a8ff 457 if(Timeout == 0x00 )
bogdanm 0:9b334a45a8ff 458 {
bogdanm 0:9b334a45a8ff 459 return HAL_TIMEOUT;
bogdanm 0:9b334a45a8ff 460 }
bogdanm 0:9b334a45a8ff 461
bogdanm 0:9b334a45a8ff 462 if( (__HAL_FLASH_GET_FLAG(FLASH_FLAG_RDERR) != RESET) ||
bogdanm 0:9b334a45a8ff 463 (__HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR) != RESET) ||
bogdanm 0:9b334a45a8ff 464 (__HAL_FLASH_GET_FLAG(FLASH_FLAG_PGAERR) != RESET) ||
bogdanm 0:9b334a45a8ff 465 (__HAL_FLASH_GET_FLAG(FLASH_FLAG_OPTVERR) != RESET) ||
bogdanm 0:9b334a45a8ff 466 (__HAL_FLASH_GET_FLAG(FLASH_FLAG_SIZERR) != RESET) ||
bogdanm 0:9b334a45a8ff 467 (__HAL_FLASH_GET_FLAG(FLASH_FLAG_FWWERR) != RESET) ||
bogdanm 0:9b334a45a8ff 468 (__HAL_FLASH_GET_FLAG(FLASH_FLAG_NOTZEROERR) != RESET) )
bogdanm 0:9b334a45a8ff 469 {
bogdanm 0:9b334a45a8ff 470 /*Save the error code*/
mbed_official 113:b3775bf36a83 471
mbed_official 113:b3775bf36a83 472 /* WARNING : On the first cut of STM32L031xx and STM32L041xx devices,
mbed_official 113:b3775bf36a83 473 * (RefID = 0x1000) the FLASH_FLAG_OPTVERR bit was not behaving
mbed_official 113:b3775bf36a83 474 * as expected. If the user run an application using the first
mbed_official 113:b3775bf36a83 475 * cut of the STM32L031xx device or the first cut of the STM32L041xx
mbed_official 113:b3775bf36a83 476 * device, this error should be ignored. The revId of the device
mbed_official 113:b3775bf36a83 477 * can be retrieved via the HAL_GetREVID() function.
mbed_official 113:b3775bf36a83 478 *
mbed_official 113:b3775bf36a83 479 */
mbed_official 113:b3775bf36a83 480
bogdanm 0:9b334a45a8ff 481 FLASHRAM_SetErrorCode();
bogdanm 0:9b334a45a8ff 482 return HAL_ERROR;
bogdanm 0:9b334a45a8ff 483 }
bogdanm 0:9b334a45a8ff 484
bogdanm 0:9b334a45a8ff 485 /* If there is an error flag set */
bogdanm 0:9b334a45a8ff 486 return HAL_OK;
bogdanm 0:9b334a45a8ff 487 }
bogdanm 0:9b334a45a8ff 488
bogdanm 0:9b334a45a8ff 489 /**
bogdanm 0:9b334a45a8ff 490 * @}
bogdanm 0:9b334a45a8ff 491 */
bogdanm 0:9b334a45a8ff 492
bogdanm 0:9b334a45a8ff 493 /**
bogdanm 0:9b334a45a8ff 494 * @}
bogdanm 0:9b334a45a8ff 495 */
bogdanm 0:9b334a45a8ff 496
mbed_official 113:b3775bf36a83 497 #endif /* HAL_FLASH_MODULE_ENABLED */
mbed_official 113:b3775bf36a83 498
bogdanm 0:9b334a45a8ff 499 /**
bogdanm 0:9b334a45a8ff 500 * @}
bogdanm 0:9b334a45a8ff 501 */
mbed_official 113:b3775bf36a83 502
bogdanm 0:9b334a45a8ff 503
bogdanm 0:9b334a45a8ff 504 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
bogdanm 0:9b334a45a8ff 505