IAP_Main
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Outline
Includes
#include "main.h"
#include "menu.h"
Exported variables
UartHandle
Private variables
Private function prototypes
main()
SystemClock_Config()
IAP_Init()
Files
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CodeScopeSTM32 Libraries and SamplesIAP_MainSrc/main.c
 
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/** ****************************************************************************** * @file IAP/IAP_Main/Src/main.c * @author MCD Application Team * @brief Main program body ****************************************************************************** * @attention * * Copyright (c) 2017 STMicroelectronics. * All rights reserved. * * This software is licensed under terms that can be found in the LICENSE file * in the root directory of this software component. * If no LICENSE file comes with this software, it is provided AS-IS. * ****************************************************************************** *//* ... */ /* Includes ------------------------------------------------------------------*/ #include "main.h" #include "menu.h" /** @addtogroup STM32F4xx_IAP_Main * @{ *//* ... */ Includes /* Exported variables --------------------------------------------------------*/ /* UART handler declaration */ UART_HandleTypeDef UartHandle; Exported variables /* Private typedef -----------------------------------------------------------*/ /* Private define ------------------------------------------------------------*/ /* Private macro -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ extern pFunction JumpToApplication; extern uint32_t JumpAddress; Private variables /* Private function prototypes -----------------------------------------------*/ static void IAP_Init(void); static void SystemClock_Config(void); Private function prototypes /* Private functions ---------------------------------------------------------*/ /** * @brief Main program. * @param None * @retval None *//* ... */ int main(void) { /* Reset of all peripherals, Initializes the Systick. */ HAL_Init(); /* Configure the system clock to 180 MHz */ SystemClock_Config(); /* Initialize Key Button mounted on STM32469I-EVAL board */ BSP_PB_Init(BUTTON_KEY, BUTTON_MODE_GPIO); /* Test if Key push-button is pressed */ if (BSP_PB_GetState(BUTTON_KEY) == GPIO_PIN_RESET) { /* Execute the IAP driver in order to reprogram the Flash */ IAP_Init(); /* Display main menu */ Main_Menu (); }if (BSP_PB_GetState(BUTTON_KEY) == GPIO_PIN_RESET) { ... } /* Keep the user application running */ else { /* Test if user code is programmed starting from address "APPLICATION_ADDRESS" */ if (((*(__IO uint32_t*)APPLICATION_ADDRESS) & 0x2FFE0000 ) == 0x20000000) { /* Jump to user application */ JumpAddress = *(__IO uint32_t*) (APPLICATION_ADDRESS + 4); JumpToApplication = (pFunction) JumpAddress; /* Initialize user application's Stack Pointer */ __set_MSP(*(__IO uint32_t*) APPLICATION_ADDRESS); JumpToApplication(); }if (((*(__IO uint32_t*)APPLICATION_ADDRESS) & 0x2FFE0000 ) == 0x20000000) { ... } }else { ... } while (1) {}while (1) { ... } }{ ... } /** * @brief System Clock Configuration * The system Clock is configured as follow : * System Clock source = PLL (HSE) * SYSCLK(Hz) = 180000000 * HCLK(Hz) = 180000000 * AHB Prescaler = 1 * APB1 Prescaler = 4 * APB2 Prescaler = 2 * HSE Frequency(Hz) = 25000000 * PLL_M = 25 * PLL_N = 360 * PLL_P = 2 * PLL_Q = 7 * PLL_R = 6 * VDD(V) = 3.3 * Main regulator output voltage = Scale1 mode * Flash Latency(WS) = 5 * @param None * @retval None *//* ... */ static void SystemClock_Config(void) { RCC_ClkInitTypeDef RCC_ClkInitStruct; RCC_OscInitTypeDef RCC_OscInitStruct; HAL_StatusTypeDef ret = HAL_OK; /* Enable Power Control clock */ __HAL_RCC_PWR_CLK_ENABLE(); /* The voltage scaling allows optimizing the power consumption when the device is clocked below the maximum system frequency, to update the voltage scaling value regarding system frequency refer to product datasheet. *//* ... */ __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1); /* Enable HSE Oscillator and activate PLL with HSE as source */ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE; RCC_OscInitStruct.HSEState = RCC_HSE_ON; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE; RCC_OscInitStruct.PLL.PLLM = 25; RCC_OscInitStruct.PLL.PLLN = 360; RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2; RCC_OscInitStruct.PLL.PLLQ = 7; RCC_OscInitStruct.PLL.PLLR = 6; ret = HAL_RCC_OscConfig(&RCC_OscInitStruct); if(ret != HAL_OK) { while(1) { ; } }if (ret != HAL_OK) { ... } /* Activate the OverDrive to reach the 180 MHz Frequency */ ret = HAL_PWREx_EnableOverDrive(); if(ret != HAL_OK) { while(1) { ; } }if (ret != HAL_OK) { ... } /* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2 clocks dividers */ RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2); RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK; RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4; RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2; ret = HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5); if(ret != HAL_OK) { while(1) { ; } }if (ret != HAL_OK) { ... } }{ ... } /** * @brief Initialize the IAP: Configure USART. * @param None * @retval None *//* ... */ static void IAP_Init(void) { /* USART resources configuration (Clock, GPIO pins and USART registers) ----*/ /* USART configured as follow: - BaudRate = 115200 baud - Word Length = 8 Bits - One Stop Bit - No parity - Hardware flow control disabled (RTS and CTS signals) - Receive and transmit enabled *//* ... */ UartHandle.Init.BaudRate = 115200; UartHandle.Init.WordLength = UART_WORDLENGTH_8B; UartHandle.Init.StopBits = UART_STOPBITS_1; UartHandle.Init.Parity = UART_PARITY_NONE; UartHandle.Init.HwFlowCtl = UART_HWCONTROL_NONE; UartHandle.Init.Mode = UART_MODE_RX | UART_MODE_TX; BSP_COM_Init(COM1, &UartHandle); }{ ... } #ifdef USE_FULL_ASSERT /** * @brief Reports the name of the source file and the source line number * where the assert_param error has occurred. * @param file: pointer to the source file name * @param line: assert_param error line source number * @retval None *//* ... */ void assert_failed(uint8_t *file, uint32_t line) { /* User can add his own implementation to report the file name and line number, ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) *//* ... */ /* Infinite loop */ while (1) {}while (1) { ... } }assert_failed (uint8_t *file, uint32_t line) { ... } /* ... */#endif /** * @} *//* ... */