Hello, I have a problem with SysTick interrupt on STM32L072KZUX.
I am using the latest version of STM32CubeIDE + the latest package for my MCU - FW_L0 1.12.3. An absolutely clean project, which was created in IDE and flashed into the device using ST-Link, starts up fine after flashing, but when the SysTick count reaches overflow and an interrupt should be called, for some reason the program goes to the wrong address (PC = 0x1ff00dd0), of course the interrupt handler itself is declared and there is a pointer to the function in the assembler file. Moreover, it does not matter which framework to use: LL or HAL. I checked the vector table both in the firmware image and in the microcontroller memory, all addresses are correct. Moreover, it does not matter how to use it. We checked it on 2 chips from the same batch, a similar program flashed into NUCLEO-L073RZ works correctly.
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_SYSCFG);
LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_PWR);
/* SysTick_IRQn interrupt configuration */
NVIC_SetPriority(SysTick_IRQn, 3);
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
LL_InitTick(16000000, 1);
LL_SYSTICK_EnableIT();
while (1)
{
LL_GPIO_TogglePin(GPIOA, LL_GPIO_PIN_9);
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
// startup_stm32l072kzux.s
.section .isr_vector,"a",%progbits
.type g_pfnVectors, %object
.size g_pfnVectors, .-g_pfnVectors
g_pfnVectors:
.word _estack
.word Reset_Handler
.word NMI_Handler
.word HardFault_Handler
.word 0
.word 0
.word 0
.word 0
.word 0
.word 0
.word 0
.word SVC_Handler
.word 0
.word 0
.word PendSV_Handler
.word SysTick_Handler
.word WWDG_IRQHandler /* Window WatchDog */
.word PVD_IRQHandler /* PVD through EXTI Line detection */
.word RTC_IRQHandler /* RTC through the EXTI line */
.word FLASH_IRQHandler /* FLASH */
.word RCC_CRS_IRQHandler /* RCC and CRS */
.word EXTI0_1_IRQHandler /* EXTI Line 0 and 1 */
.word EXTI2_3_IRQHandler /* EXTI Line 2 and 3 */
.word EXTI4_15_IRQHandler /* EXTI Line 4 to 15 */
.word TSC_IRQHandler /* TSC */
.word DMA1_Channel1_IRQHandler /* DMA1 Channel 1 */
.word DMA1_Channel2_3_IRQHandler /* DMA1 Channel 2 and Channel 3 */
.word DMA1_Channel4_5_6_7_IRQHandler /* DMA1 Channel 4, Channel 5, Channel 6 and Channel 7*/
.word ADC1_COMP_IRQHandler /* ADC1, COMP1 and COMP2 */
.word LPTIM1_IRQHandler /* LPTIM1 */
.word USART4_5_IRQHandler /* USART4 and USART 5 */
.word TIM2_IRQHandler /* TIM2 */
.word TIM3_IRQHandler /* TIM3 */
.word TIM6_DAC_IRQHandler /* TIM6 and DAC */
.word TIM7_IRQHandler /* TIM7 */
.word 0 /* Reserved */
.word TIM21_IRQHandler /* TIM21 */
.word I2C3_IRQHandler /* I2C3 */
.word TIM22_IRQHandler /* TIM22 */
.word I2C1_IRQHandler /* I2C1 */
.word I2C2_IRQHandler /* I2C2 */
.word SPI1_IRQHandler /* SPI1 */
.word SPI2_IRQHandler /* SPI2 */
.word USART1_IRQHandler /* USART1 */
.word USART2_IRQHandler /* USART2 */
.word RNG_LPUART1_IRQHandler /* RNG and LPUART1 */
.word 0 /* Reserved */
.word USB_IRQHandler /* USB */
// stm32l0xx_it.c
/**
* @brief This function handles System tick timer.
*/
void SysTick_Handler(void)
{
/* USER CODE BEGIN SysTick_IRQn 0 */
/* USER CODE END SysTick_IRQn 0 */
/* USER CODE BEGIN SysTick_IRQn 1 */
/* USER CODE END SysTick_IRQn 1 */
}
// Map listening file is
0x20005000 _estack = (ORIGIN (RAM) + LENGTH (RAM))
0x00000200 _Min_Heap_Size = 0x200
0x00000400 _Min_Stack_Size = 0x400
.isr_vector 0x08000000 0xc0
0x08000000 . = ALIGN (0x4)
*(.isr_vector)
.isr_vector 0x08000000 0xc0 ./Core/Startup/startup_stm32l072kzux.o
0x08000000 g_pfnVectors
0x080000c0 . = ALIGN (0x4)
.text 0x080000c0 0x9b0
0x080000c0 . = ALIGN (0x4)
...
.text.SysTick_Handler
0x08000750 0xa ./Core/Src/stm32l0xx_it.o
0x08000750 SysTick_Handler
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