STM32CubeF4/Projects/STM32469I_EVAL/Applications/FreeRTOS/FreeRTOS_Timers/Src/main.c

/**
  ******************************************************************************
  * @file    FreeRTOS/FreeRTOS_Timers/Src/main.c
  * @author  MCD Application Team
  * @brief   Main program body
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2017 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "cmsis_os.h"

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
static void osTimerCallback (void const *argument);
static void ToggleLEDsThread(void const *argument);
static void SystemClock_Config(void);
static void Error_Handler(void);

/* Private functions ---------------------------------------------------------*/

/**
  * @brief  Main program
  * @param  None
  * @retval None
  */
int main(void)
{  
  /* STM32F4xx HAL library initialization:
       - Configure the Flash prefetch, instruction and Data caches
       - Configure the Systick to generate an interrupt each 1 msec
       - Set NVIC Group Priority to 4
       - Global MSP (MCU Support Package) initialization
     */
  HAL_Init();  
  
  /* Configure the system clock to 180 MHz */
  SystemClock_Config();
  
  /* Configure LED1 and LED3 */
  BSP_LED_Init(LED1);
  BSP_LED_Init(LED3);
  
  /* Create Timer */
  osTimerDef(LEDTimer, osTimerCallback);
  osTimerId osTimer = osTimerCreate (osTimer(LEDTimer), osTimerPeriodic, NULL);
  
  /* Start Timer */
  osTimerStart(osTimer, 200);
 
  /* Create LED Thread */
  osThreadDef(LEDThread, ToggleLEDsThread, osPriorityNormal, 0, configMINIMAL_STACK_SIZE);
  osThreadCreate (osThread(LEDThread), NULL);
  
  /* Start scheduler */
  osKernelStart();

  /* We should never get here as control is now taken by the scheduler */
  for(;;);
}

/**
  * @brief  Timer Clbk that toggle LED1
  * @param  argument not used
  * @retval None
  */
static void osTimerCallback (void const *argument)
{
  (void) argument;  
  
  /* Toggle LED1*/
  BSP_LED_Toggle(LED1);
}

/**
  * @brief  Toggle LED3 thread
  * @param  argument not used
  * @retval None
  */
static void ToggleLEDsThread(void const *argument)
{
  (void) argument;
  
  for(;;)
  {
    /* Toggle LED3 each 400ms */
    BSP_LED_Toggle(LED3);
    
    osDelay(400);
  }
}

/**
  * @brief  System Clock Configuration
  *         The system Clock is configured as follow : 
  *            System Clock source            = PLL (HSE)
  *            SYSCLK(Hz)                     = 180000000
  *            HCLK(Hz)                       = 180000000
  *            AHB Prescaler                  = 1
  *            APB1 Prescaler                 = 4
  *            APB2 Prescaler                 = 2
  *            HSE Frequency(Hz)              = 25000000
  *            PLL_M                          = 25
  *            PLL_N                          = 360
  *            PLL_P                          = 2
  *            PLL_Q                          = 7
  *            PLL_R                          = 6
  *            VDD(V)                         = 3.3
  *            Main regulator output voltage  = Scale1 mode
  *            Flash Latency(WS)              = 5
  * @param  None
  * @retval None
  */
static void SystemClock_Config(void)
{
  RCC_ClkInitTypeDef RCC_ClkInitStruct;
  RCC_OscInitTypeDef RCC_OscInitStruct;
  HAL_StatusTypeDef ret = HAL_OK;

  /* Enable Power Control clock */
  __HAL_RCC_PWR_CLK_ENABLE();

  /* The voltage scaling allows optimizing the power consumption when the device is 
     clocked below the maximum system frequency, to update the voltage scaling value 
     regarding system frequency refer to product datasheet.  */
  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);

  /* Enable HSE Oscillator and activate PLL with HSE as source */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLM = 25;
  RCC_OscInitStruct.PLL.PLLN = 360;
  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
  RCC_OscInitStruct.PLL.PLLQ = 7;
  RCC_OscInitStruct.PLL.PLLR = 6;
  
  ret = HAL_RCC_OscConfig(&RCC_OscInitStruct);
  
  if(ret != HAL_OK)
  {
    Error_Handler();
 }
  
  /* Activate the OverDrive to reach the 180 MHz Frequency */  
  ret = HAL_PWREx_EnableOverDrive();
  if(ret != HAL_OK)
  {
    Error_Handler();
  }
  
  /* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2 
     clocks dividers */
  RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;  
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;  
  ret = HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5);
  if(ret != HAL_OK)
  {
    Error_Handler();
  }
}

/**
  * @brief  This function is executed in case of error occurrence.
  * @param  None
  * @retval None
  */
static void Error_Handler(void)
{
    /* Turn LED3 on */
    BSP_LED_On(LED3);
    while(1)
    {
    }
}

#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 can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */

  /* Infinite loop */
  while (1)
  {
  }
}
#endif