STM32F4 simple bootloader

bootloader.c

#include "bootloader.h"

BootloaderInfo Info;

/**

******************************************************************************

* @file    bootloader.c

* @author  Molotaliev A.O

* @version V 0.5.1

* @date    16-february-2016/17-february-2016/9-March-2016

* @brief   This file provides bootloader f(x) for stm32f405 dual stage start

*         

*/ 

   

/****************************************************************************/

pFunction FirmwareStart;

#define MAIN_PROGRAM_ADRESS 0x08040000

/****************************************************************************/

void InitBootloader(void)

{

  Info.Major = 0;

  Info.Minor = 1;

  Info.Ext = 1;

    

};

/****************************************************************************/

void MainLoop(void)

{

   uint32_t JumpAddress = 0x08040000;

   FirmwareStart = (pFunction) *(__IO uint32_t*) (JumpAddress + 4);

   __set_MSP(*(__IO uint32_t*)0x08040000);

    FirmwareStart();

}

/****************************************************************************/

bootloader.h

#include <stdint.h>
#include "stm32f4xx.h"
#ifdef __cplusplus
 extern "C" {
#endif  

typedef  void (*pFunction)(void);
typedef enum BootloaderState
{
 BootloaderState_UPDATE,
 BootloaderState_RESTORE,
 BootloaderState_BACKUP,
 BootloaderState_COMPLETE,
}BootloaderState;

typedef struct BootloaderInfo
{
 uint32_t Major;
 uint32_t Minor;
 uint32_t Ext;
 uint32_t BootCount;
 BootloaderState State;
 bool AvalibleNewFimwaware;
}BootloaderInfo;

void InitBootloader(void);
void MainLoop(void);

#ifdef __cplusplus
 }
#endif 

STM32F4_bootloader.icf

/*###ICF### Section handled by ICF editor, don't touch! ****/

/*-Editor annotation file-*/

/* IcfEditorFile="$TOOLKIT_DIR$\config\ide\IcfEditor\cortex_v1_0.xml" */

/*-Specials-*/

define symbol __ICFEDIT_intvec_start__ = 0x08000000;

/*-Memory Regions-*/

define symbol __ICFEDIT_region_ROM_start__ = 0x08000000;

define symbol __ICFEDIT_region_ROM_end__   = 0x0802000;

define symbol __ICFEDIT_region_RAM_start__ = 0x20000000;

define symbol __ICFEDIT_region_RAM_end__   = 0x2001FFFF;

/*-Sizes-*/

define symbol __ICFEDIT_size_cstack__ = 0x2000;

define symbol __ICFEDIT_size_heap__   = 0x2000;

/**** End of ICF editor section. ###ICF###*/

define symbol __region_RAM1_start__ = 0x10000000;

define symbol __region_RAM1_end__   = 0x1000FFFF;

define memory mem with size = 4G;

define region ROM_region   = mem:[from __ICFEDIT_region_ROM_start__   to __ICFEDIT_region_ROM_end__];

define region RAM_region   = mem:[from __ICFEDIT_region_RAM_start__   to __ICFEDIT_region_RAM_end__];

define region RAM1_region  = mem:[from __region_RAM1_start__   to __region_RAM1_end__];

define block CSTACK    with alignment = 8, size = __ICFEDIT_size_cstack__   { };

define block HEAP      with alignment = 8, size = __ICFEDIT_size_heap__     { };

initialize by copy { readwrite };

do not initialize  { section .noinit };

place at address mem:__ICFEDIT_intvec_start__ { readonly section .intvec };

place in ROM_region   { readonly };

place in RAM_region   { readwrite,

                        block CSTACK, block HEAP };

place in RAM1_region  { section .sram };