STM32CubeF3/Projects/STM32373C_EVAL/Applications/FreeRTOS/FreeRTOS_SignalFromISR/Src/main.c

/**
  ******************************************************************************
  * @file    FreeRTOS/FreeRTOS_SignalFromISR/Src/main.c
  * @author  MCD Application Team
  * @brief   Main program body
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2016 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 ------------------------------------------------------------*/
   #define BIT_0	( 1 << 0 )
   #define BIT_1	( 1 << 1 )
   #define BIT_2	( 1 << 2 )
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
osThreadId LED_ThreadId;

/* Private function prototypes -----------------------------------------------*/
static void LED_Thread(void const *argument);
static void SystemClock_Config(void);
void Toggle_Leds(void);

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

/**
  * @brief  Main program
  * @param  None
  * @retval None
  */
int main(void)
{
  /* STM32F3xx HAL library initialization:
       - Configure the Flash prefetch
       - Systick timer is configured by default as source of time base, but user 
         can eventually implement his proper time base source (a general purpose 
         timer for example or other time source), keeping in mind that Time base 
         duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and 
         handled in milliseconds basis.
       - Set NVIC Group Priority to 4
       - Low Level Initialization
     */
  HAL_Init();  
  
  /* Configure the System clock to 72 MHz */
  SystemClock_Config();
  
  /* Initialize LEDs */
  BSP_LED_Init(LED2);
  
  /* Thread 1 definition */
  osThreadDef(LED, LED_Thread, osPriorityNormal, 0, configMINIMAL_STACK_SIZE);
  
  /* Start thread */
  LED_ThreadId = osThreadCreate(osThread(LED), NULL);
  
  /* Start scheduler */
  osKernelStart();
  
  /* We should never get here as control is now taken by the scheduler */
  for(;;);
}

/**
  * @brief  Toggle LED2 thread
  * @param  argument not used
  * @retval None
  */
static void LED_Thread(void const *argument)
{
  (void) argument;
  osEvent event;
  
  for(;;)
  {
    event = osSignalWait( BIT_1 | BIT_2, osWaitForever);
    if(event.value.signals == (BIT_1 | BIT_2))
    {      
      BSP_LED_Toggle(LED2);
    }
  }
}

/**
  * @brief  Toggles LEDs to show user input state.
  * @param  None
  * @retval None
  */
void Toggle_Leds(void)
{
  static uint32_t ticks = 0;
  
  if(ticks == 400) 
  {
    osSignalSet( LED_ThreadId, BIT_1);   
  }
  else if(ticks == 1000) 
  {
    osSignalSet( LED_ThreadId, BIT_1 | BIT_2 );
    ticks = 0;    
  }  
  
  ticks++;
}

/**
  * @brief  System Clock Configuration
  *         The system Clock is configured as follow :
  *            System Clock source            = PLL (HSE)
  *            SYSCLK(Hz)                     = 72000000
  *            HCLK(Hz)                       = 72000000
  *            AHB Prescaler                  = 1
  *            APB1 Prescaler                 = 2
  *            APB2 Prescaler                 = 1
  *            HSE Frequency(Hz)              = 8000000
  *            HSE PREDIV                     = 1
  *            PLLMUL                         = RCC_PLL_MUL9 (9)
  *            Flash Latency(WS)              = 2
  * @param  None
  * @retval None
  */
void SystemClock_Config(void)
{
  RCC_ClkInitTypeDef RCC_ClkInitStruct;
  RCC_OscInitTypeDef RCC_OscInitStruct;

  /* Enable HSE Oscillator and activate PLL with HSE as source */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
  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)
  {
    /* Initialization Error */
    while(1); 
  }

  /* 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_DIV2;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2)!= HAL_OK)
  {
    /* Initialization Error */
    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