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Bootloader doesn't work correctly (STM32L151) First program at 0x08033C00 , compiled with Mikroe, works correctly but I'm trying to add a STM32Cube bootloader so it can start it on one bank. It doesn't ... Thanks for help

JFELI.13
Associate III
/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2023 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.
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
 
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
 
/* USER CODE END Includes */
 
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
 
/* USER CODE END PTD */
 
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
 
#define ADDR_PROGRAM1 0x08003C00
#define ADDR_PROGRAM2 0x08033C00
/*
 
#define ADDR_PROGRAM1 0x3C00
#define ADDR_PROGRAM2 0x33C00
*/
 
/* USER CODE END PD */
 
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
#define MAJOR 0 /*version 0*/
#define MINOR 1 /*version 1*/
/* USER CODE END PM */
 
/* Private variables ---------------------------------------------------------*/
 
/* USER CODE BEGIN PV */
const uint8_t BL_Version[2]={MAJOR,MINOR};
/* USER CODE END PV */
 
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
/* USER CODE BEGIN PFP */
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void goto_application( void );
typedef void (*pFunction)(void);
pFunction Jump_To_Application;
 
/* USER CODE END PFP */
 
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
 
/* USER CODE END 0 */
 
/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{
  void (*SysMemBootJump)(void);
  /* USER CODE BEGIN 1 */
 
  /* USER CODE END 1 */
 
  /* MCU Configuration--------------------------------------------------------*/
 
  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();
 
  /* USER CODE BEGIN Init */
 
  /* USER CODE END Init */
 
  /* Configure the system clock */
  SystemClock_Config();
 
  /* USER CODE BEGIN SysInit */
 
  /* USER CODE END SysInit */
 
  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  /* USER CODE BEGIN 2 */
 
  //HAL_RCC_DeInit();
  //__disable_irq();
  /*__HAL_SYSCFG_REMAPMEMORY_SYSTEMFLASH(); // nécessaire (réinitialise le system memory)? */
 
  /************/
/*
  SysMemBootJump = (void (*)(void)) (*((uint32_t *)(ADDR_PROGRAM2+4)));
  __set_MSP(*(uint32_t *)ADDR_PROGRAM2); // Main Stack Pointer
  SysMemBootJump();
  */
  /************/
  HAL_Delay(1000);
  Led10_Flash(1);
  HAL_Delay(3000);
  goto_application();
  /* USER CODE END 2 */
 
  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
 
  while (1)
  {
    /* USER CODE END WHILE */
 
    /* USER CODE BEGIN 3 */
  }
  /* USER CODE END 3 */
}
 
/**
  * @brief System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
 
  /** Configure the main internal regulator output voltage
  */
  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
 
  /** Initializes the RCC Oscillators according to the specified parameters
  * in the RCC_OscInitTypeDef structure.
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_MSI;
  RCC_OscInitStruct.MSIState = RCC_MSI_ON;
  RCC_OscInitStruct.MSICalibrationValue = 0;
  RCC_OscInitStruct.MSIClockRange = RCC_MSIRANGE_5;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }
 
  /** Initializes the CPU, AHB and APB buses clocks
  */
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_MSI;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
 
  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
  {
    Error_Handler();
  }
}
 
/**
  * @brief GPIO Initialization Function
  * @param None
  * @retval None
  */
static void MX_GPIO_Init(void)
{
  GPIO_InitTypeDef GPIO_InitStruct = {0};
 
  /* GPIO Ports Clock Enable */
  __HAL_RCC_GPIOC_CLK_ENABLE();
 
  /*Configure GPIO pin Output Level */
  HAL_GPIO_WritePin(Led10_GPIO_Port, Led10_Pin, GPIO_PIN_SET);
 
  /*Configure GPIO pin : Led10_Pin */
  GPIO_InitStruct.Pin = Led10_Pin;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  HAL_GPIO_Init(Led10_GPIO_Port, &GPIO_InitStruct);
 
}
 
/* USER CODE BEGIN 4 */
 void Led10_Flash(char Nombre)
{
	char x1;
	HAL_GPIO_WritePin(Led10_GPIO_Port, Led10_Pin, GPIO_PIN_RESET);
	for (x1=0;x1<(Nombre*2);x1++)
	{
	    HAL_GPIO_TogglePin (Led10_GPIO_Port, Led10_Pin);
	    HAL_Delay(500);
	}
	HAL_GPIO_WritePin(Led10_GPIO_Port, Led10_Pin, GPIO_PIN_RESET);
}
 
static void goto_application(void)
{
	uint32_t JumpAddress;
 
	JumpAddress = (uint32_t) *((__IO uint32_t*)ADDR_PROGRAM2); 
	Jump_To_Application = (pFunction) *(__IO uint32_t*) (ADDR_PROGRAM2 + 4);
	SCB->VTOR = JumpAddress; 
	__set_MSP(JumpAddress);
    Led10_Flash(5);
 
}
/* USER CODE END 4 */
 
/**
  * @brief  This function is executed in case of error occurrence.
  * @retval None
  */
void Error_Handler(void)
{
  /* USER CODE BEGIN Error_Handler_Debug */
  /* User can add his own implementation to report the HAL error return state */
  __disable_irq();
  while (1)
  {
  }
  /* USER CODE END Error_Handler_Debug */
}
 
#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 CODE BEGIN 6 */
  /* 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) */
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

4 REPLIES 4

Code in SystemInit() tends to set SCB->VTOR

Check the build address in the linker script is correct.

Use a debugger, step the transition, understand what's "not working"

Tips, Buy me a coffee, or three.. PayPal Venmo
Up vote any posts that you find helpful, it shows what's working..
JFELI.13
Associate III

0693W00000aHKfHQAW.png

JFELI.13
Associate III

It's like if there was an uncompatilbility between two files from different compilers.

If I remove "SCB->VTOR" it doesn't change anything...

Is it possible, for example to add a short program in the STMCube "bootloader" soft (adress 0x08033C00) so I can test if it work and try to compare ? (hard to learn a new way of writing code...)

JFELI.13
Associate III

Nobody can answer ? is it really possible to jump to an application , made with other compiler, or did the

compilation made includes a specific area that would not allow it ?

I tried this too but it doesn't change anything (soft is "lost"):

#define ApplicationAddress 0x08033C00
typedef void (*pFunction)(void);
uint32_t JumpAddress = *(__IO uint32_t*) (ApplicationAddress + 4);
pFunction Jump_To_Boot = (pFunction) JumpAddress;
__set_MSP(*(__IO uint32_t*) ApplicationAddress);
Jump_To_Boot();