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https://github.com/STMicroelectronics/STM32CubeF3.git
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262 lines
8.5 KiB
C
262 lines
8.5 KiB
C
/**
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******************************************************************************
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* @file FLASH/FLASH_EraseProgram/Src/main.c
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* @author MCD Application Team
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* @brief This example provides a description of how to erase and program the
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* STM32F3xx FLASH.
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******************************************************************************
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* @attention
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*
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* <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "main.h"
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/** @addtogroup STM32F3xx_HAL_Examples
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* @{
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*/
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/** @addtogroup FLASH_EraseProgram
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* @{
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*/
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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#define FLASH_USER_START_ADDR ADDR_FLASH_PAGE_16 /* Start @ of user Flash area */
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#define FLASH_USER_END_ADDR ADDR_FLASH_PAGE_255 + FLASH_PAGE_SIZE /* End @ of user Flash area */
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#define DATA_32 ((uint32_t)0x12345678)
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/* Private macro -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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uint32_t Address = 0, PageError = 0;
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__IO uint32_t data32 = 0 , MemoryProgramStatus = 0;
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/*Variable used for Erase procedure*/
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static FLASH_EraseInitTypeDef EraseInitStruct;
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/* Private function prototypes -----------------------------------------------*/
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static void SystemClock_Config(void);
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/* Private functions ---------------------------------------------------------*/
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/**
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* @brief Main program
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* @param None
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* @retval None
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*/
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int main(void)
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{
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/* STM32F3xx HAL library initialization:
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- Configure the Flash prefetch
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- Configure the Systick to generate an interrupt each 1 msec
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- Set NVIC Group Priority to 4
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- Low Level Initialization
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*/
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HAL_Init();
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/* Configure the system clock to 64 MHz */
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SystemClock_Config();
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/* Initialize LED2 */
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BSP_LED_Init(LED2);
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/* Unlock the Flash to enable the flash control register access *************/
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HAL_FLASH_Unlock();
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/* Erase the user Flash area
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(area defined by FLASH_USER_START_ADDR and FLASH_USER_END_ADDR) ***********/
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/* Fill EraseInit structure*/
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EraseInitStruct.TypeErase = FLASH_TYPEERASE_PAGES;
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EraseInitStruct.PageAddress = FLASH_USER_START_ADDR;
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EraseInitStruct.NbPages = (FLASH_USER_END_ADDR - FLASH_USER_START_ADDR) / FLASH_PAGE_SIZE;
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if (HAL_FLASHEx_Erase(&EraseInitStruct, &PageError) != HAL_OK)
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{
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/*
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Error occurred while page erase.
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User can add here some code to deal with this error.
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PageError will contain the faulty page and then to know the code error on this page,
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user can call function 'HAL_FLASH_GetError()'
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*/
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/* Infinite loop */
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while (1)
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{
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/* Make LED2 blink (100ms on, 2s off) to indicate error in Erase operation */
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BSP_LED_On(LED2);
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HAL_Delay(100);
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BSP_LED_Off(LED2);
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HAL_Delay(2000);
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}
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}
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/* Program the user Flash area word by word
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(area defined by FLASH_USER_START_ADDR and FLASH_USER_END_ADDR) ***********/
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Address = FLASH_USER_START_ADDR;
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while (Address < FLASH_USER_END_ADDR)
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{
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if (HAL_FLASH_Program(FLASH_TYPEPROGRAM_WORD, Address, DATA_32) == HAL_OK)
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{
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Address = Address + 4;
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}
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else
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{
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/* Error occurred while writing data in Flash memory.
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User can add here some code to deal with this error */
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while (1)
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{
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/* Make LED2 blink (100ms on, 2s off) to indicate error in Write operation */
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BSP_LED_On(LED2);
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HAL_Delay(100);
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BSP_LED_Off(LED2);
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HAL_Delay(2000);
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}
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}
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}
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/* Lock the Flash to disable the flash control register access (recommended
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to protect the FLASH memory against possible unwanted operation) *********/
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HAL_FLASH_Lock();
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/* Check if the programmed data is OK
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MemoryProgramStatus = 0: data programmed correctly
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MemoryProgramStatus != 0: number of words not programmed correctly ******/
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Address = FLASH_USER_START_ADDR;
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MemoryProgramStatus = 0x0;
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while (Address < FLASH_USER_END_ADDR)
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{
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data32 = *(__IO uint32_t *)Address;
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if (data32 != DATA_32)
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{
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MemoryProgramStatus++;
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}
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Address = Address + 4;
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}
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/*Check if there is an issue to program data*/
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if (MemoryProgramStatus == 0)
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{
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/* No error detected. Switch on LED2*/
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BSP_LED_On(LED2);
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}
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else
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{
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/* Error detected. LED2 will blink with 1s period */
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while (1)
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{
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BSP_LED_On(LED2);
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HAL_Delay(1000);
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BSP_LED_Off(LED2);
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HAL_Delay(1000);
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}
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}
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/* Infinite loop */
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while (1)
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{
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}
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}
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/**
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* @brief System Clock Configuration
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* The system Clock is configured as follow :
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* System Clock source = PLL (HSI)
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* SYSCLK(Hz) = 64000000
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* HCLK(Hz) = 64000000
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* AHB Prescaler = 1
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* APB1 Prescaler = 2
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* APB2 Prescaler = 1
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* PLLMUL = RCC_PLL_MUL16 (16)
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* Flash Latency(WS) = 2
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* @param None
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* @retval None
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*/
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void SystemClock_Config(void)
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{
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RCC_ClkInitTypeDef RCC_ClkInitStruct;
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RCC_OscInitTypeDef RCC_OscInitStruct;
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/* HSI Oscillator already ON after system reset, activate PLL with HSI as source */
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RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_NONE;
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RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
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RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
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RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL16;
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if (HAL_RCC_OscConfig(&RCC_OscInitStruct)!= HAL_OK)
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{
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/* Initialization Error */
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while(1);
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}
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/* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
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clocks dividers */
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RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
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RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
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RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
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RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
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RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
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if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2)!= HAL_OK)
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{
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/* Initialization Error */
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while(1);
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}
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}
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#ifdef USE_FULL_ASSERT
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/**
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* @brief Reports the name of the source file and the source line number
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* where the assert_param error has occurred.
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* @param file: pointer to the source file name
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* @param line: assert_param error line source number
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* @retval None
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*/
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void assert_failed(char *file, uint32_t line)
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{
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/* User can add his own implementation to report the file name and line number,
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ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
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/* Infinite loop */
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while (1)
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{
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}
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}
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#endif
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/**
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* @}
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*/
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/**
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* @}
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*/
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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