Nucleo-H7S3L8 with RTOS: HAL_IncTick() always returning 0

[htxy]

Hi everyone,

I'm working on an STM32H7RS project (NUCLEO-H7S3L8) with the following setup:

• Bootloader in internal flash (0x08000000)

• Application in external OSPI flash (XIP) at 0x70000000

• Using Azure RTOS (ThreadX)

• Using TIM6 as the HAL time base (not SysTick)

• Configured using latest STM32CubeMX and STM32CubeIDE (v1.18.1)

What I already checked:

• The vector table is correctly set in main() of the application:

int main(void)
{

  /* USER CODE BEGIN 1 */
#define APPLICATION_VECTOR_TABLE  ((uint32_t)0x70000000)

SCB->VTOR = APPLICATION_VECTOR_TABLE;
__DSB();
__ISB();

  /* USER CODE END 1 */

  /* Enable the CPU Cache */

  /* Enable I-Cache---------------------------------------------------------*/
  SCB_EnableICache();

  /* Enable D-Cache---------------------------------------------------------*/

  /* MCU Configuration--------------------------------------------------------*/

  /* Update SystemCoreClock variable according to RCC registers values. */
  SystemCoreClockUpdate();

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_HPDMA1_Init();
  MX_GPDMA1_Init();
  uint32_t tickTest3 = HAL_GetTick();
  MX_ADC1_Init();
  MX_ADC2_Init();
  MX_I2C2_Init();
  MX_SBS_Init();
  MX_UART4_Init();
  MX_UART5_Init();
  MX_TIM3_Init();
  MX_TIM2_Init();
  MX_UART7_Init();
  MX_UART8_Init();
  MX_I2C3_Init();
  MX_SPI1_Init();
  MX_SPI2_Init();
  MX_ETH_Init();
  MX_FLASH_Init();
  MX_DTS_Init();
  MX_TIM1_Init();
  /* USER CODE BEGIN 2 */
  /* Initialize leds */
  BSP_LED_Init(LED_GREEN);
  BSP_LED_Init(LED_BLUE);
  BSP_LED_Init(LED_RED);


  /* USER CODE BEGIN BSP */
  /* -- Sample board code to send message over COM1 port ---- */
  printf("Welcome to STM32 world !\n\rApplication project is running...\n\r");
  /* -- Sample board code to switch on leds ---- */
  BSP_LED_On(LED_GREEN);
  BSP_LED_On(LED_BLUE);
  BSP_LED_On(LED_RED);
  /* USER CODE END BSP */
  /* USER CODE END 2 */

  MX_ThreadX_Init();

• HAL_Init() is called before anything else

• HAL_InitTick() has been overridden to use TIM6

• HAL_TIM_Base_Start_IT() returns HAL_OK

• TIM6_DAC_IRQHandler() is defined and includes a call to HAL_IncTick() via HAL_TIM_IRQHandler()

• HAL_TIM_PeriodElapsedCallback() is implemented and includes:

if (htim->Instance == TIM6) {
    HAL_IncTick();
}
​

• The TIM6 interrupt priority is set to 14, and NVIC config is applied

• uwTick remains at 0 the entire time — HAL_GetTick() and HAL_Delay() don’t function

• MX_Eth_Init works, indicating that clocks, NVIC, and system init are not completely broken

• Using the default ThreadX integration generated by STM32CubeMX for Azure RTOS

I also upleaded my IOC file. Are there any known issues or things i have overseen?

[TDK]

14 is a lower priority than 0. You typically want SysTick (or whatever you're using for it) to be a higher priority (numerically lower) than others. It's probably an issue with this.

[htxy]

This is my application NVIC:

I set everything to 1 except the not editeble interrupt handlers as wel as TIM6. Upon running, HAL_GetTick still return 0 all the time, as uwTick is not increasing.

[TDK]

That screenshot shows systick is lower priority than everything else.

Put TIM6 at 0 and everything else at 15.

If that doesn't work, show the stack trace when HAL_Delay fails.