CODEWITHSUNDEEP
armembeddedembedded-linuxbootloaderstm
Abdelrhman Kaamal
Abdelrhman Kaamal

Reputation: 9

jumping from bootloader to application HardFault error STM32F103C8

i write bootloader in 0x8000000 to flash data of new code in address 0x800D000 by this function :

void flash_jump_to_app(void)
{
    HAL_RCC_DeInit();
    HAL_DeInit();
    __disable_irq();
    SCB->VTOR = FIRST_TARGET_ADDRESS;
    asm("movw r0,#0xD000  \n");
    asm("ldr   sp , [r0]  \n");
    asm("ldr   r0 , [r0,#4]  \n");
    asm("bx        r0  \n");
}

and when new main_app start generate HardFault with these data

HSFR = 0x40000000

BFSR = 0x00000082

BFAR = 0X20005000

i think its error in vector table but i don't find it

LINKER FOR BOOTLOADER :

/* Entry Point */
ENTRY(Reset_Handler)

/* Highest address of the user mode stack */
_estack = ORIGIN(RAM) + LENGTH(RAM);   /* end of RAM */
/* Generate a link error if heap and stack don't fit into RAM */
_Min_Heap_Size = 0x200;      /* required amount of heap  */
_Min_Stack_Size = 0x400; /* required amount of stack */

/* Specify the memory areas */
MEMORY
{
RAM (xrw)      : ORIGIN = 0x20000000, LENGTH = 20K
FLASH (rx)      : ORIGIN = 0x8000000, LENGTH = 30K
}

LINKER OF APPLICATION :

ENTRY(Reset_Handler)

/* Highest address of the user mode stack */
_estack = ORIGIN(RAM) + LENGTH(RAM); /* end of "RAM" Ram type memory */

_Min_Heap_Size = 0x200; /* required amount of heap */
_Min_Stack_Size = 0x400; /* required amount of stack */

/* Memories definition */
MEMORY
{
  RAM    (xrw)    : ORIGIN = 0x20000000,   LENGTH = 20K
  FLASH    (rx)    : ORIGIN = 0x800D000,   LENGTH = 33K
}

I TRY MANY TIMES TO CHANGE LINKER BUT CAN'T

Upvotes: 0

Views: 44

Answers (0)

Related Questions