[STM32F765ZI] 부트로더를 이용한 소프트웨어 업데이트

BootloaderUpdator.zip

0.03MB

TestBinary.zip

0.85MB

BootLoader.zip

1.12MB

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임알못(임베디드를 알지 못하는 인간)이 간단하게 테스트해 본 결과 돌아가길래 올려본다.

 

* 소스파일(2개)

 1) [C#]HEX파일을 읽어서 바이너리로 변환후 시리얼로 전달하는 프로그램(BootloaderUpdator.zip)

    (STM32가 구동되고 10초 안에 바이너리가 전달되어야 한다.

     그렇지 않으면 업데이트 되지 않고 메인 루틴으로 이동한다.)

 2) [STM32] 부트로더 프로그램(BootLoader.zip)

 3) [STM32] 메인 프로그램(TestBinary.zip)

 

 

 

1. 대상 CPU : STM32F765ZI

2. 소프트웨어 종류
1) Before : Main S/W (0x8000000)
2) After  : BootLoader S/W(0x8000000) + Main S/W(0x8010000)
   
3. STM32F765ZI_FLASH.ld 파일
1) Before

MEMORY
{
RAM (xrw)      : ORIGIN = 0x20000000, LENGTH = 512K
FLASH (rx)      : ORIGIN = 0x8000000, LENGTH = 2048K
}

2) After
ㄱ) BootLoader 

MEMORY
{
RAM (xrw)      : ORIGIN = 0x20000000, LENGTH = 512K
FLASH (rx)      : ORIGIN = 0x8000000, LENGTH = 64K
}

ㄴ) Main 

MEMORY
{
RAM (xrw)      : ORIGIN = 0x20000000, LENGTH = 512K
FLASH (rx)      : ORIGIN = 0x8010000, LENGTH = 1984K
}

4. 바이너리 파일 : 시리얼을 통하여 hex파일을 읽어서 바이너리로 변경후 
   $FILE,NNN,BBBBB\r\n 
   형식으로 전달한다.
   > NNN : (가변크기)바이너리 크기
   > BBBBB : (가변크기)메인 프로그램 바이너리

5. 부트로더 프로그램
1) 부트로더 프로그램에서 다음 루틴을 통해 Main 프로그램으로 전달 가능하다.

void GoToApplication()
{
// Get the application stack pointer (First entry in the application vector table)
uint32_t appStack = (uint32_t) *((__IO uint32_t*)APPLICATION_ADDRESS);

// Get the application entry point (Second entry in the application vector table)
pFunction appEntry = (pFunction) *(__IO uint32_t*) (APPLICATION_ADDRESS + 4);

// Reconfigure vector table offset register to watch the application bootloader
SCB->VTOR = APPLICATION_ADDRESS;

// Set the application stack pointer
__set_MSP(appStack);

appEntry();

// Infinite loop
while (1);
}

2) Main 프로그램 업데이트 순서
* 정의

#define ADDR_FLASH_SECTOR_0     ((uint32_t)0x08000000) /* Base @ of Sector 0, 32 Kbyte */
#define ADDR_FLASH_SECTOR_1     ((uint32_t)0x08008000) /* Base @ of Sector 1, 32 Kbyte */
#define ADDR_FLASH_SECTOR_2     ((uint32_t)0x08010000) /* Base @ of Sector 2, 32 Kbyte */
#define ADDR_FLASH_SECTOR_3     ((uint32_t)0x08018000) /* Base @ of Sector 3, 32 Kbyte */
#define ADDR_FLASH_SECTOR_4     ((uint32_t)0x08020000) /* Base @ of Sector 4, 128 Kbyte */
#define ADDR_FLASH_SECTOR_5     ((uint32_t)0x08040000) /* Base @ of Sector 5, 256 Kbyte */
#define ADDR_FLASH_SECTOR_6     ((uint32_t)0x08080000) /* Base @ of Sector 6, 256 Kbyte */
#define ADDR_FLASH_SECTOR_7     ((uint32_t)0x080C0000) /* Base @ of Sector 7, 256 Kbyte */
#define ADDR_FLASH_SECTOR_8     ((uint32_t)0x08100000) /* Base @ of Sector 8, 256 Kbyte */
#define ADDR_FLASH_SECTOR_9     ((uint32_t)0x08140000) /* Base @ of Sector 9, 256 Kbyte */
#define ADDR_FLASH_SECTOR_10    ((uint32_t)0x08180000) /* Base @ of Sector 10, 256 Kbyte */
#define ADDR_FLASH_SECTOR_11    ((uint32_t)0x08C00000) /* Base @ of Sector 11, 256 Kbyte */

 

 ㄱ) 플래쉬 Unlock

  void FLASH_If_Init(void)
  {
      HAL_FLASH_Unlock();//HAL 드라이브에 포함된 함수

      /* Clear pending flags (if any) */
      __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR |
                         FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR | FLASH_FLAG_ERSERR);
  }

 ㄴ) 플래쉬 Erase

uint32_t FLASH_If_Erase(uint32_t StartSector)
{
  uint32_t UserStartSector;
  uint32_t SectorError;
  FLASH_EraseInitTypeDef pEraseInit;

  UserStartSector = GetSector(APPLICATION_ADDRESS);

  pEraseInit.TypeErase = TYPEERASE_SECTORS;
  pEraseInit.Sector    = UserStartSector;
  /*
  Main 소프트웨어가 쓰여지기 위해서 2개의 블록이 쓰여진다.
  ADDR_FLASH_SECTOR_2, ADDR_FLASH_SECTOR_3
  0x08010000~0x0801FFFF
  
  */
  pEraseInit.NbSectors = 2; 
  pEraseInit.VoltageRange = VOLTAGE_RANGE_3;

  if (HAL_FLASHEx_Erase(&pEraseInit, &SectorError) != HAL_OK)
  {
 /* Error occurred while page erase */
 return (1);
  }

  return (0);
}

 
 ㄷ) 플래쉬 Write

if (FLASH_If_Write(APPLICATION_ADDRESS, (uint32_t*) &UpdateFileBuffer[StartPos], (EndPos - StartPos) / 4) == FLASHIF_OK)
{
//Success
}

//
uint32_t FLASH_If_Write(uint32_t FlashAddress, uint32_t* Data ,uint32_t DataLength)
{
  uint32_t i = 0;

  for (i = 0; (i < DataLength) && (FlashAddress <= (USER_FLASH_END_ADDRESS-4)); i++)
  {
/* Device voltage range supposed to be [2.7V to 3.6V], the operation will
   be done by word */
if (HAL_FLASH_Program(TYPEPROGRAM_WORD, FlashAddress, *(uint32_t*)(Data+i)) == HAL_OK)
{
 /* Check the written value */
  if (*(uint32_t*)FlashAddress != *(uint32_t*)(Data+i))
  {
/* Flash content doesn't match SRAM content */
return(FLASHIF_WRITINGCTRL_ERROR);
  }
  /* Increment FLASH destination address */
  FlashAddress += 4;
}
else
{
  /* Error occurred while writing data in Flash memory */
  return (FLASHIF_WRITING_ERROR);
}
  }

  return (FLASHIF_OK);
}

 ㄹ) 플래쉬 Lock

HAL_FLASH_Lock();

uint8_t Flash_If_DeInit(void)
{
  /* Lock the internal flash */
  HAL_FLASH_Lock();
  return 0;
}

 ㅁ) 메인 프로그램쪽으로 이동한다.

GoToApplication()