By clicking the debug mode the program jumps to vector_stm32f407xx file and freezes.

[Abid]

I am using STM32F407ZET MCU and using Eclipse IDE. My PCB board is working fine, I check and verify. In my firmware I am using timer 6 as an interrupt and systick is used for freertos. But when I click on the debug option it jumps on the following function and freezes.

void __attribute__ ((section(".after_vectors")))

Default_Handler(void)

{

#if defined(DEBUG)

__DEBUG_BKPT();

#endif

while (1)

{

;

}

}

I tried with STM32CUBE IDE, it is working normal. What can be the reason?

[TDK]

> I am using STM32F407ZET MCU and using Eclipse IDE.

> I tried with STM32CUBE IDE, it is working normal.

Wouldn't that suggest it's an IDE issue? Why not just use STM32CubeIDE, as it's Eclipse-based anyway.

But jumping to default handler suggests ResetHandler is perhaps not properly defined or put in the vector table.

[FBL]

Hello @Abid 

The issue could be related to the debugger settings or the startup file. You can check the initial SP and PC and it should point to Reset_Handler.

[Abid · Accepted solution]

Thanks for the reply:

IQRHandler(); function was missing. I add the function and now my program does not stuck. 

void TIM6_DAC_IRQHandler(void)

{

/* USER CODE BEGIN TIM6_DAC_IRQn 0 */

/* USER CODE END TIM6_DAC_IRQn 0 */

HAL_TIM_IRQHandler(&htim6);

/* USER CODE BEGIN TIM6_DAC_IRQn 1 */

/* USER CODE END TIM6_DAC_IRQn 1 */

}