SysTick_Handler not called, STM32G0B1

[Xme]

I am using CubeIde for the first time.

First test - run minimal program with HAL from CubeIDe Configurator, under debugger

Simple program, only SYSTICK and uart , but SysTick_Handler() is not trigged at all .

And function HAL_Delay hangs because uwTick is always 0. Tried with setting brakepoint inside handler - no results

Used HSI, SYSCLK 16MHZ, Cortex System Timer 16MHz,

RCC GPIO and USART1 - HAL configured.

here is main() generated from cubeide (I removed comments):

-----------------------------------------------------------

int main(void)

{

  HAL_Init();

 SystemClock_Config();

 MX_GPIO_Init();

 MX_USART1_UART_Init();

 HAL_Delay(100);

// here program hangs, when reaches HAL_Delay function. uwTick = 0

 while (1)

 {

 }

}

-----------------------------------------------------------

and here is the SysTick_handler from stm32g0xx_it.c

-----------------------------------------------------------

void SysTick_Handler(void)

{

 HAL_IncTick();

}

-----------------------------------------------------------

[XR.1]

Hi!

Please look at this post: https://community.st.com/t5/stm32cubemx-mcus/systick-handler-not-called-stm32g0b1/m-p/744998/highlight/true#M30159

(It's one post before yours.)

[Swanduron]

So, how to resolve this issue? I want to write some code for key scanning with systick, but right now I can't use the Systick_Handle to do that. This function in standard lib is easy to use.

[XR.1]

Hi,

Right now I barely recall what I exaclty did. Please help me refreshing my memory and tell me the contents of the function SystemInit() in your project, which is located in the file system_stm32g0xx.c (line 185).

What I can recall is that the issue was around the VTOR register: this is what I have right now:

/**
  * @brief  Setup the microcontroller system.
  * @PAram  None
  * @retval None
  */
void SystemInit(void)
{
  /* Configure the Vector Table location -------------------------------------*/
#if defined(USER_VECT_TAB_ADDRESS)
  SCB->VTOR = VECT_TAB_BASE_ADDRESS | VECT_TAB_OFFSET; /* Vector Table Relocation */
#endif /* USER_VECT_TAB_ADDRESS */
}

[Tesla DeLorean]

Perhaps look at what SCB->VTOR is CURRENTLY set too in the NON-WORKING sense.

If it is ZERO, then it probably hasn't been set. You should set it appropriately in SystemInit()

If you're using External Loaders, to look at OSPI/QSPI in memory mapped mode, this often a) change SCB->VTOR and b) disable interrupts when leaving.