FreeRtos software timer

Former Member
Former Member

Hi friends, I am using STM32CubeMX and trying to start software timer but I couldn't start.These are my codes.Do you have any simple example or How can I manage it?

#include "main.h"
#include "stm32f1xx_hal.h"
#include "cmsis_os.h"


UART_HandleTypeDef huart2;

osThreadId defaultTaskHandle;
osThreadId myTask02Handle;
osTimerId myTimer01Handle;
osTimerId myTimer02Handle;
osTimerId myTimer03Handle;
osTimerId myTimer04Handle;
osMutexId myMutex01Handle;
osSemaphoreId myBinarySem01Handle;

/* USER CODE BEGIN PV */
/* Private variables ---------------------------------------------------------*/

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_USART2_UART_Init(void);
void StartDefaultTask(void const * argument);
void StartTask02(void const * argument);
void Callback01(void const * argument);
void Callback02(void const * argument);
extern void Callback03(void const * argument);
extern void Callback04(void const * argument);

int main(void)
{

HAL_Init();
SystemClock_Config();

MX_GPIO_Init();
MX_USART2_UART_Init();
/* USER CODE BEGIN 2 */

/* USER CODE END 2 */

/* Create the mutex(es) */
/* definition and creation of myMutex01 */
osMutexDef(myMutex01);
myMutex01Handle = osMutexCreate(osMutex(myMutex01));

/* USER CODE BEGIN RTOS_MUTEX */
/* add mutexes, ... */
/* USER CODE END RTOS_MUTEX */

/* Create the semaphores(s) */
/* definition and creation of myBinarySem01 */
osSemaphoreDef(myBinarySem01);
myBinarySem01Handle = osSemaphoreCreate(osSemaphore(myBinarySem01), 1);

/* USER CODE BEGIN RTOS_SEMAPHORES */
/* add semaphores, ... */
/* USER CODE END RTOS_SEMAPHORES */

/* Create the timer(s) */
/* definition and creation of myTimer01 */
osTimerDef(myTimer01, Callback01);
myTimer01Handle = osTimerCreate(osTimer(myTimer01), osTimerOnce, NULL);

/* definition and creation of myTimer02 */
osTimerDef(myTimer02, Callback02);
myTimer02Handle = osTimerCreate(osTimer(myTimer02), osTimerPeriodic, NULL);

/* definition and creation of myTimer03 */
osTimerDef(myTimer03, Callback03);
myTimer03Handle = osTimerCreate(osTimer(myTimer03), osTimerOnce, NULL);

/* definition and creation of myTimer04 */
osTimerDef(myTimer04, Callback04);
myTimer04Handle = osTimerCreate(osTimer(myTimer04), osTimerPeriodic, NULL);

/* USER CODE BEGIN RTOS_TIMERS */
/* start timers, add new ones, ... */
/* USER CODE END RTOS_TIMERS */

/* Create the thread(s) */
/* definition and creation of defaultTask */
osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 128);
defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL);

/* definition and creation of myTask02 */
osThreadDef(myTask02, StartTask02, osPriorityIdle, 0, 128);
myTask02Handle = osThreadCreate(osThread(myTask02), NULL);

/* USER CODE BEGIN RTOS_THREADS */
/* add threads, ... */
/* USER CODE END RTOS_THREADS */

/* USER CODE BEGIN RTOS_QUEUES */
/* add queues, ... */
/* USER CODE END RTOS_QUEUES */

/* Start scheduler */
osKernelStart();
xTimerStart(myTimer02Handle,1000);
/* We should never get here as control is now taken by the scheduler */

/* Infinite loop */
/* USER CODE BEGIN WHILE */


while (1)
{

}

  • Hi,

    Please check the FreeRTOSConfig.h. You need to enable the software timer attribute in FreeRTOS, which remains disabled by default in STM32CubeMX.

    Something like the following..

    /* Software timer related definitions. */
    #define configUSE_TIMERS                        1
    #define configTIMER_TASK_PRIORITY               3
    #define configTIMER_QUEUE_LENGTH                10
    #define configTIMER_TASK_STACK_DEPTH            configMINIMAL_STACK_SIZE

    Thanks
  • Former Member
    0 Former Member in reply to voidrealm

    As much as I learn now,first ,If we use RTOS ,system doesnt enter the whie loop in main,so it means RTOS is handling the system and I managed to start ,HAL Library has own functions about that is very simple,this is why I would want to see any example code,I realised it by mistake.Now my example codes are below.

    #include "main.h"
    #include "stm32f1xx_hal.h"
    #include "cmsis_os.h"

    /* USER CODE BEGIN Includes */

    /* USER CODE END Includes */

    /* Private variables ---------------------------------------------------------*/
    UART_HandleTypeDef huart2;

    osThreadId defaultTaskHandle;
    osThreadId myTask02Handle;
    osTimerId myTimer01Handle;
    osTimerId myTimer02Handle;
    osTimerId myTimer03Handle;
    osTimerId myTimer04Handle;
    osMutexId myMutex01Handle;
    osSemaphoreId myBinarySem01Handle;

    uint8_t temp=1;
    /* USER CODE BEGIN PV */
    /* Private variables ---------------------------------------------------------*/

    /* USER CODE END PV */

    /* Private function prototypes -----------------------------------------------*/
    void SystemClock_Config(void);
    static void MX_GPIO_Init(void);
    static void MX_USART2_UART_Init(void);
    void StartDefaultTask(void const * argument);
    void StartTask02(void const * argument);
    void Callback01(void const * argument);
    void Callback02(void const * argument);
    extern void Callback03(void const * argument);
    extern void Callback04(void const * argument);

    /* USER CODE BEGIN PFP */
    /* Private function prototypes -----------------------------------------------*/

    /* USER CODE END PFP */

    /* USER CODE BEGIN 0 */

    /* USER CODE END 0 */

    /**
    * @brief The application entry point.
    *
    * @retval None
    */
    int main(void)
    {
    /* USER CODE BEGIN 1 */

    /* 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_USART2_UART_Init();
    /* USER CODE BEGIN 2 */

    /* USER CODE END 2 */

    /* Create the mutex(es) */
    /* definition and creation of myMutex01 */
    osMutexDef(myMutex01);
    myMutex01Handle = osMutexCreate(osMutex(myMutex01));

    /* USER CODE BEGIN RTOS_MUTEX */
    /* add mutexes, ... */
    /* USER CODE END RTOS_MUTEX */

    /* Create the semaphores(s) */
    /* definition and creation of myBinarySem01 */
    osSemaphoreDef(myBinarySem01);
    myBinarySem01Handle = osSemaphoreCreate(osSemaphore(myBinarySem01), 1);

    /* USER CODE BEGIN RTOS_SEMAPHORES */
    /* add semaphores, ... */
    /* USER CODE END RTOS_SEMAPHORES */

    /* Create the timer(s) */
    /* definition and creation of myTimer01 */
    osTimerDef(myTimer01, Callback01);
    myTimer01Handle = osTimerCreate(osTimer(myTimer01), osTimerOnce, NULL);

    /* definition and creation of myTimer02 */
    osTimerDef(myTimer02, Callback02);
    myTimer02Handle = osTimerCreate(osTimer(myTimer02), osTimerPeriodic, NULL);

    /* definition and creation of myTimer03 */
    osTimerDef(myTimer03, Callback03);
    myTimer03Handle = osTimerCreate(osTimer(myTimer03), osTimerOnce, NULL);

    /* definition and creation of myTimer04 */
    osTimerDef(myTimer04, Callback04);
    myTimer04Handle = osTimerCreate(osTimer(myTimer04), osTimerPeriodic, NULL);

    /* USER CODE BEGIN RTOS_TIMERS */
    /* start timers, add new ones, ... */
    /* USER CODE END RTOS_TIMERS */

    /* Create the thread(s) */
    /* definition and creation of defaultTask */
    osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 128);
    defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL);

    /* definition and creation of myTask02 */
    osThreadDef(myTask02, StartTask02, osPriorityIdle, 0, 128);
    myTask02Handle = osThreadCreate(osThread(myTask02), NULL);

    /* USER CODE BEGIN RTOS_THREADS */
    /* add threads, ... */
    /* USER CODE END RTOS_THREADS */

    /* USER CODE BEGIN RTOS_QUEUES */
    /* add queues, ... */
    /* USER CODE END RTOS_QUEUES */

    //osTimerStart(myTimer01Handle,500);
    /* Start scheduler */
    osKernelStart();

    /* We should never get here as control is now taken by the scheduler */

    /* Infinite loop */
    /* USER CODE BEGIN WHILE */
    while (1)
    {

    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */

    }
    /* USER CODE END 3 */

    }

    /**
    * @brief System Clock Configuration
    * @retval None
    */
    void SystemClock_Config(void)
    {

    RCC_OscInitTypeDef RCC_OscInitStruct;
    RCC_ClkInitTypeDef RCC_ClkInitStruct;

    /**Initializes the CPU, AHB and APB busses clocks
    */
    RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
    RCC_OscInitStruct.HSEState = RCC_HSE_ON;
    RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
    RCC_OscInitStruct.HSIState = RCC_HSI_ON;
    RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
    RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
    RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
    if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
    {
    _Error_Handler(__FILE__, __LINE__);
    }

    /**Initializes the CPU, AHB and APB busses clocks
    */
    RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
    |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
    RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
    RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
    RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
    RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

    if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
    {
    _Error_Handler(__FILE__, __LINE__);
    }

    /**Configure the Systick interrupt time
    */
    HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);

    /**Configure the Systick
    */
    HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);

    /* SysTick_IRQn interrupt configuration */
    HAL_NVIC_SetPriority(SysTick_IRQn, 15, 0);
    }

    /* USART2 init function */
    static void MX_USART2_UART_Init(void)
    {

    huart2.Instance = USART2;
    huart2.Init.BaudRate = 115200;
    huart2.Init.WordLength = UART_WORDLENGTH_8B;
    huart2.Init.StopBits = UART_STOPBITS_1;
    huart2.Init.Parity = UART_PARITY_NONE;
    huart2.Init.Mode = UART_MODE_TX_RX;
    huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
    huart2.Init.OverSampling = UART_OVERSAMPLING_16;
    if (HAL_UART_Init(&huart2) != HAL_OK)
    {
    _Error_Handler(__FILE__, __LINE__);
    }

    }

    /** Configure pins as
    * Analog
    * Input
    * Output
    * EVENT_OUT
    * EXTI
    */
    static void MX_GPIO_Init(void)
    {

    GPIO_InitTypeDef GPIO_InitStruct;

    /* GPIO Ports Clock Enable */
    __HAL_RCC_GPIOC_CLK_ENABLE();
    __HAL_RCC_GPIOD_CLK_ENABLE();
    __HAL_RCC_GPIOA_CLK_ENABLE();

    /*Configure GPIO pin Output Level */
    HAL_GPIO_WritePin(GPIOC, GPIO_PIN_13, GPIO_PIN_RESET);

    /*Configure GPIO pin : PC13 */
    GPIO_InitStruct.Pin = GPIO_PIN_13;
    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
    HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);

    }

    /* USER CODE BEGIN 4 */

    /* USER CODE END 4 */

    /* StartDefaultTask function */
    void StartDefaultTask(void const * argument)
    {

    osStatus osSt;
    /* USER CODE BEGIN 5 */
    /* Infinite loop */
    for(;;)
    {

    if(temp)
    {
    osSt = osTimerStart(myTimer01Handle,1000);
    temp=0;
    }
    // else if(temp == 0 && osSt == osEventTimeout)
    // osTimerStop();

    osDelay(1);
    }
    /* USER CODE END 5 */
    }

    /* StartTask02 function */
    void StartTask02(void const * argument)
    {
    /* USER CODE BEGIN StartTask02 */
    /* Infinite loop */
    for(;;)
    {
    osDelay(1);
    }
    /* USER CODE END StartTask02 */
    }

    /* Callback01 function */
    void Callback01(void const * argument)
    {
    /* USER CODE BEGIN Callback01 */
    HAL_GPIO_TogglePin(GPIOC,GPIO_PIN_13);
    /* USER CODE END Callback01 */
    }

    /* Callback02 function */
    void Callback02(void const * argument)
    {
    /* USER CODE BEGIN Callback02 */
    HAL_GPIO_TogglePin(GPIOC,GPIO_PIN_13);
    /* USER CODE END Callback02 */
    }
    void Callback03(void const * argument)
    {
    /* USER CODE BEGIN Callback02 */

    /* USER CODE END Callback02 */
    }
    void Callback04(void const * argument)
    {
    /* USER CODE BEGIN Callback02 */

    /* USER CODE END Callback02 */
    }

    /**
    * @brief Period elapsed callback in non blocking mode
    * @note This function is called when TIM1 interrupt took place, inside
    * HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
    * a global variable "uwTick" used as application time base.
    * @param htim : TIM handle
    * @retval None
    */
    void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
    {
    /* USER CODE BEGIN Callback 0 */

    /* USER CODE END Callback 0 */
    if (htim->Instance == TIM1) {
    HAL_IncTick();
    }
    /* USER CODE BEGIN Callback 1 */

    /* USER CODE END Callback 1 */
    }

    /**
    * @brief This function is executed in case of error occurrence.
    * @param file: The file name as string.
    * @param line: The line in file as a number.
    * @retval None
    */
    void _Error_Handler(char *file, int line)
    {
    /* USER CODE BEGIN Error_Handler_Debug */
    /* User can add his own implementation to report the HAL error return state */
    while(1)
    {
    }
    /* USER CODE END Error_Handler_Debug */
    }

    #ifdef USE_FULL_ASSERT
    /**
    * @brief Reports the name of the source file and the source line number
    * where the assert_param error has occurred.
    * @param file: pointer to the source file name
    * @param line: assert_param error line source number
    * @retval None
    */
    void assert_failed(uint8_t* file, uint32_t line)
    {
    /* USER CODE BEGIN 6 */
    /* User can add his own implementation to report the file name and line number,
    tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
    /* USER CODE END 6 */
    }
    #endif /* USE_FULL_ASSERT */

    /**
    * @}
    */

    /**
    * @}
    */

    /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/