text: /* USER CODE BEGIN Header */
  /**
   ******************************************************************************
   * @file           : main.c
   * @brief          : Main program body
   ******************************************************************************
   * @attention
   *
   * <h2><center>&copy; Copyright (c) 2021 STMicroelectronics.
   * All rights reserved.</center></h2>
   *
   * This software component is licensed by ST under BSD 3-Clause license,
   * the "License"; You may not use this file except in compliance with the
   * License. You may obtain a copy of the License at:
   *                        opensource.org/licenses/BSD-3-Clause
   *
   ******************************************************************************
   */
  /* ******************************************************************************
   DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
   Version 2, December 2021
  
   Copyright (C) 2021 Mahendra Sondagar <mahendrasondagar08@gmail.com>
   Everyone is permitted to copy and distribute verbatim or modified
   copies of this license document, and changing it is allowed as long
   as the name is changed.
  
   DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
   0. You just DO WHAT THE FUCK YOU WANT TO.
  
   Coded: Sun, 12th Sep, 2021 / 16:56 PM
   ****************************************************/
  /* USER CODE END Header */
  /* Includes ------------------------------------------------------------------*/
  #include "main.h"
  #include "cmsis_os.h"
  
  /* Private includes ----------------------------------------------------------*/
  /* USER CODE BEGIN Includes */
  
  /* USER CODE END Includes */
  
  /* Private typedef -----------------------------------------------------------*/
  /* USER CODE BEGIN PTD */
  
  /* USER CODE END PTD */
  
  /* Private define ------------------------------------------------------------*/
  /* USER CODE BEGIN PD */
  /* USER CODE END PD */
  
  /* Private macro -------------------------------------------------------------*/
  /* USER CODE BEGIN PM */
  #define WELCOME_MSG     "--------------------------------------------------\r\n"\
                          "                 Hello World!                     \r\n"\
  	                    "    This is the FreeRTOS Binary Semaphore Example \r\n"\
  						"          Coded By: Mahendra Sondagar             \r\n"\
  						"        <mahendrasondagar08@gmail.com>            \r\n"\
  						"--------------------------------------------------\r\n"
  /* USER CODE END PM */
  
  /* Private variables ---------------------------------------------------------*/
  UART_HandleTypeDef huart2;
  
  /* Definitions for Boss */
  osThreadId_t BossHandle;
  const osThreadAttr_t Boss_attributes = { .name = "Boss", .priority =
  		(osPriority_t) osPriorityNormal, .stack_size = 256 * 4 };
  /* Definitions for Employee */
  osThreadId_t EmployeeHandle;
  const osThreadAttr_t Employee_attributes = { .name = "Employee", .priority =
  		(osPriority_t) osPriorityBelowNormal, .stack_size = 256 * 4 };
  /* Definitions for Start */
  osThreadId_t StartHandle;
  const osThreadAttr_t Start_attributes = { .name = "Start", .priority =
  		(osPriority_t) osPriorityHigh, .stack_size = 256 * 4 };
  /* Definitions for MyToken */
  osSemaphoreId_t MyTokenHandle;
  const osSemaphoreAttr_t MyToken_attributes = { .name = "MyToken" };
  /* USER CODE BEGIN PV */
  
  /* 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 BossFunction(void *argument);
  void EmployeeFunction(void *argument);
  void MainThread(void *argument);
  
  /* 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 */
  
  	/* 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 */
  	HAL_Delay(250);
  	KERNEL_DBG(WELCOME_MSG);
  
  	/* USER CODE END 2 */
  
  	/* Init scheduler */
  	osKernelInitialize();
  
  	/* USER CODE BEGIN RTOS_MUTEX */
  	/* add mutexes, ... */
  	/* USER CODE END RTOS_MUTEX */
  
  	/* Create the semaphores(s) */
  	/* creation of MyToken */
  	MyTokenHandle = osSemaphoreNew(1, 1, &MyToken_attributes);
  
  	/* USER CODE BEGIN RTOS_SEMAPHORES */
  	/* add semaphores, ... */
  	/* USER CODE END RTOS_SEMAPHORES */
  
  	/* USER CODE BEGIN RTOS_TIMERS */
  	/* start timers, add new ones, ... */
  	/* USER CODE END RTOS_TIMERS */
  
  	/* USER CODE BEGIN RTOS_QUEUES */
  	/* add queues, ... */
  	/* USER CODE END RTOS_QUEUES */
  
  	/* Create the thread(s) */
  
  	/* creation of Start */
  	StartHandle = osThreadNew(MainThread, NULL, &Start_attributes);
  	if (StartHandle == NULL) {
  		KERNEL_DBG("Failed to create MainThread");
  	}
  
  	/* USER CODE BEGIN RTOS_THREADS */
  	/* add threads, ... */
  	/* USER CODE END RTOS_THREADS */
  
  	/* USER CODE BEGIN RTOS_EVENTS */
  	/* add events, ... */
  	/* USER CODE END RTOS_EVENTS */
  
  	/* 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 = { 0 };
  	RCC_ClkInitTypeDef RCC_ClkInitStruct = { 0 };
  	RCC_PeriphCLKInitTypeDef PeriphClkInit = { 0 };
  
  	/** Initializes the RCC Oscillators according to the specified parameters
  	 * in the RCC_OscInitTypeDef structure.
  	 */
  	RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
  	RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  	RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
  	RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  	RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
  	RCC_OscInitStruct.PLL.PLLM = 1;
  	RCC_OscInitStruct.PLL.PLLN = 10;
  	RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV7;
  	RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2;
  	RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2;
  	if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) {
  		Error_Handler();
  	}
  	/** Initializes the CPU, AHB and APB buses 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_DIV1;
  	RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
  
  	if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4) != HAL_OK) {
  		Error_Handler();
  	}
  	PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART2;
  	PeriphClkInit.Usart2ClockSelection = RCC_USART2CLKSOURCE_PCLK1;
  	if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK) {
  		Error_Handler();
  	}
  	/** Configure the main internal regulator output voltage
  	 */
  	if (HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1)
  			!= HAL_OK) {
  		Error_Handler();
  	}
  }
  
  /**
   * @brief USART2 Initialization Function
   * @param None
   * @retval None
   */
  static void MX_USART2_UART_Init(void) {
  
  	/* USER CODE BEGIN USART2_Init 0 */
  
  	/* USER CODE END USART2_Init 0 */
  
  	/* USER CODE BEGIN USART2_Init 1 */
  
  	/* USER CODE END USART2_Init 1 */
  	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;
  	huart2.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
  	huart2.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
  	if (HAL_UART_Init(&huart2) != HAL_OK) {
  		Error_Handler();
  	}
  	/* USER CODE BEGIN USART2_Init 2 */
  
  	/* USER CODE END USART2_Init 2 */
  
  }
  
  /**
   * @brief GPIO Initialization Function
   * @param None
   * @retval None
   */
  static void MX_GPIO_Init(void) {
  	GPIO_InitTypeDef GPIO_InitStruct = { 0 };
  
  	/* GPIO Ports Clock Enable */
  	__HAL_RCC_GPIOB_CLK_ENABLE();
  	__HAL_RCC_GPIOA_CLK_ENABLE();
  	__HAL_RCC_GPIOD_CLK_ENABLE();
  
  	/*Configure GPIO pin Output Level */
  	HAL_GPIO_WritePin(BSP_USER_LED1_GPIO_Port, BSP_USER_LED1_Pin,
  			GPIO_PIN_RESET);
  
  	/*Configure GPIO pin : BSP_USER_LED1_Pin */
  	GPIO_InitStruct.Pin = BSP_USER_LED1_Pin;
  	GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  	GPIO_InitStruct.Pull = GPIO_NOPULL;
  	GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
  	HAL_GPIO_Init(BSP_USER_LED1_GPIO_Port, &GPIO_InitStruct);
  
  }
  
  /* USER CODE BEGIN 4 */
  
  /* USER CODE END 4 */
  
  /* USER CODE BEGIN Header_BossFunction */
  /**
   * @brief  Function implementing the Boss thread.
   * @param  argument: Not used
   * @retval None
   */
  /* USER CODE END Header_BossFunction */
  void BossFunction(void *argument) {
  	/* USER CODE BEGIN 5 */
  	/* Infinite loop */
  	for (;;) {
  		/* Sending the Binary semaphore at every 2 sec */
  		osSemaphoreRelease(MyTokenHandle);
  		osDelay(2000);
  	}
  	/* USER CODE END 5 */
  }
  
  /* USER CODE BEGIN Header_EmployeeFunction */
  /**
   * @brief Function implementing the Employee thread.
   * @param argument: Not used
   * @retval None
   */
  /* USER CODE END Header_EmployeeFunction */
  void EmployeeFunction(void *argument) {
  	/* USER CODE BEGIN EmployeeFunction */
  	/* Infinite loop */
  	for (;;) {
  		/*Waiting forever for semaphore */
  		if (osSemaphoreAcquire(MyTokenHandle, osWaitForever) == osOK) {
  			KERNEL_DBG("Employee allocated task from BOSS!");
  			HAL_GPIO_TogglePin(BSP_USER_LED1_GPIO_Port, BSP_USER_LED1_Pin);
  		}
  	}
  	/* USER CODE END EmployeeFunction */
  }
  
  /* USER CODE BEGIN Header_MainThread */
  /**
   * @brief Function implementing the Start thread.
   * @param argument: Not used
   * @retval None
   */
  /* USER CODE END Header_MainThread */
  void MainThread(void *argument) {
  	/* USER CODE BEGIN MainThread */
  	/* Create the thread(s) */
  	/* creation of Boss */
  	BossHandle = osThreadNew(BossFunction, NULL, &Boss_attributes);
  	if (BossHandle == NULL) {
  		KERNEL_DBG("Failed to create BossThread");
  	}
  
  	/* creation of Employee */
  	EmployeeHandle = osThreadNew(EmployeeFunction, NULL, &Employee_attributes);
  	if (EmployeeHandle == NULL) {
  		KERNEL_DBG("Failed to create Employee Thread");
  	}
  	/* Infinite loop */
  	for (;;) {
  		osThreadTerminate(StartHandle);
  	}
  	/* USER CODE END MainThread */
  }
  
  /**
   * @brief  Period elapsed callback in non blocking mode
   * @note   This function is called  when TIM6 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 == TIM6) {
  		HAL_IncTick();
  	}
  	/* USER CODE BEGIN Callback 1 */
  
  	/* USER CODE END Callback 1 */
  }
  
  /**
   * @brief  This function is executed in case of error occurrence.
   * @retval None
   */
  void Error_Handler(void) {
  	/* USER CODE BEGIN Error_Handler_Debug */
  	/* User can add his own implementation to report the HAL error return state */
  	__disable_irq();
  	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,
       ex: 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****/
  