LED blinking with timer interrupt - c

Question

I'm trying to make two LEDs blink with a timer interrupt, but for some reason when the last function called before the while loop returns, the code seems to enter a loop (which is not the while loop obviously) from which it never exits
I'm using a STM32 Nucleo-144 for STM32H743ZI with ARM Corte-M7 core at 400MHz;
I used CubeMX for initializing the board and the desired pin. Also from CubeMX I set the timer TIM6 with a prescaler of 399999 and a period of 499 so the blinking period would be of 0.5s; The IDE I'm using is Atollic True Studio
Here's the code I'm trying to run
ETH_TxPacketConfig TxConfig;
ETH_HandleTypeDef heth;
TIM_HandleTypeDef htim6;
UART_HandleTypeDef huart3;
PCD_HandleTypeDef hpcd_USB_OTG_FS;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_ETH_Init(void);
static void MX_USART3_UART_Init(void);
static void MX_USB_OTG_FS_PCD_Init(void);
static void MX_TIM6_Init(void);
void TIM6_IRQHandler(void);
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/**
* #brief The application entry point.
* #retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
IRQn_Type TIM6_IRQn = 0;
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* 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();
MX_ETH_Init();
MX_USART3_UART_Init();
MX_USB_OTG_FS_PCD_Init();
MX_TIM6_Init();
/* USER CODE BEGIN 2 */
__HAL_RCC_TIM6_CLK_ENABLE(); //Enable the TIM6 peripheral
HAL_NVIC_SetPriority(TIM6_IRQn, 0, 0); //Enable the peripheral IRQ
HAL_NVIC_EnableIRQ(TIM6_IRQn);
HAL_TIM_Base_Start_IT(&htim6); //Start the timer
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1) //While loop free for other simultaneous operation
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
Here are some other functions used for intercepting the interrupt and managing it
void TIM6_IRQHandler(void) {
// Pass the control to HAL, which processes the IRQ
HAL_TIM_IRQHandler(&htim6);
}
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim) {
// This callback is automatically called by the HAL on the UEV event
if(htim->Instance == TIM6) {
HAL_GPIO_TogglePin(GPIOB,GPIO_PIN_14); //Function that trigger a PIN
HAL_GPIO_TogglePin(GPIOB,GPIO_PIN_7);
}
}
Here is the function that initialize the timer
static void MX_TIM6_Init(void)
{
/* USER CODE BEGIN TIM6_Init 0 */
/* USER CODE END TIM6_Init 0 */
TIM_MasterConfigTypeDef sMasterConfig = {0};
/* USER CODE BEGIN TIM6_Init 1 */
/* USER CODE END TIM6_Init 1 */
htim6.Instance = TIM6;
htim6.Init.Prescaler = 399999;
htim6.Init.CounterMode = TIM_COUNTERMODE_UP;
htim6.Init.Period = 499;
htim6.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_Base_Init(&htim6) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim6, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN TIM6_Init 2 */
/* USER CODE END TIM6_Init 2 */
}
I compile without errors or warning, but the LEDs don't blink; what am I doing wrong?
EDIT
Here is the code for the MX_GPIO_Init()
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOH_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
__HAL_RCC_GPIOG_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_0|LD3_Pin|LD2_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(USB_PowerSwitchOn_GPIO_Port, USB_PowerSwitchOn_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : USER_Btn_Pin */
GPIO_InitStruct.Pin = USER_Btn_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(USER_Btn_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : PA5 */
GPIO_InitStruct.Pin = GPIO_PIN_5;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/*Configure GPIO pins : PB0 LD3_Pin LD2_Pin */
GPIO_InitStruct.Pin = GPIO_PIN_0|LD3_Pin|LD2_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/*Configure GPIO pin : USB_PowerSwitchOn_Pin */
GPIO_InitStruct.Pin = USB_PowerSwitchOn_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(USB_PowerSwitchOn_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : USB_OverCurrent_Pin */
GPIO_InitStruct.Pin = USB_OverCurrent_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(USB_OverCurrent_GPIO_Port, &GPIO_InitStruct);
}