mirror of
https://github.com/STMicroelectronics/STM32CubeF4.git
synced 2025-05-06 19:29:19 +08:00
234 lines
7.1 KiB
C
234 lines
7.1 KiB
C
/**
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******************************************************************************
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* @file FreeRTOS/FreeRTOS_Signal/Src/main.c
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* @author MCD Application Team
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* @brief Main program body
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2017 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "main.h"
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#include "cmsis_os.h"
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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#define BIT_0 ( 1 << 0 )
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#define BIT_1 ( 1 << 1 )
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#define BIT_2 ( 1 << 2 )
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/* Private macro -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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osThreadId LED1_ThreadId, LED2_ThreadId;
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/* Private function prototypes -----------------------------------------------*/
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static void Signal_Gen_Thread(void const *argument);
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static void LED_Thread1(void const *argument);
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static void LED_Thread2(void const *argument);
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static void SystemClock_Config(void);
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/* Private functions ---------------------------------------------------------*/
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/**
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* @brief Main program
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* @param None
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* @retval None
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*/
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int main(void)
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{
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/* STM32F4xx HAL library initialization:
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- Configure the Flash prefetch
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- Systick timer is configured by default as source of time base, but user
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can eventually implement his proper time base source (a general purpose
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timer for example or other time source), keeping in mind that Time base
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duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and
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handled in milliseconds basis.
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- Set NVIC Group Priority to 4
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- Low Level Initialization
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*/
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HAL_Init();
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/* Configure the System clock to 100 MHz */
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SystemClock_Config();
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/* Initialize LEDs */
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BSP_LED_Init(LED1);
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BSP_LED_Init(LED2);
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/* Thread 1 definition */
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osThreadDef(LED1, LED_Thread1, osPriorityNormal, 0, configMINIMAL_STACK_SIZE);
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/* Thread 2 definition */
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osThreadDef(LED2, LED_Thread2, osPriorityNormal, 0, configMINIMAL_STACK_SIZE);
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/* Thread 3 definition */
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osThreadDef(SIGNAL_GEN, Signal_Gen_Thread, osPriorityNormal, 0, configMINIMAL_STACK_SIZE);
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/* Start thread 1 */
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LED1_ThreadId = osThreadCreate(osThread(LED1), NULL);
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/* Start thread 2 */
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LED2_ThreadId = osThreadCreate(osThread(LED2), NULL);
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/* Start thread 3 */
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osThreadCreate(osThread(SIGNAL_GEN), NULL);
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/* Start scheduler */
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osKernelStart();
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/* We should never get here as control is now taken by the scheduler */
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for(;;);
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}
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/**
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* @brief Thread (LED_Thread1) used to toggle a LED when getting the appropriate signal.
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* @param Thread not used
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* @retval None
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*/
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static void LED_Thread1(void const *argument)
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{
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(void) argument;
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osEvent event;
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for(;;)
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{
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event = osSignalWait( BIT_0, osWaitForever);
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if(event.value.signals == BIT_0)
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{
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BSP_LED_Toggle(LED1);
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}
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}
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}
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/**
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* @brief Thread (LED_Thread2) used to toggle a LED when getting the appropriate signal.
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* @param argument not used
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* @retval None
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*/
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static void LED_Thread2(void const *argument)
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{
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(void) argument;
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osEvent event;
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for(;;)
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{
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event = osSignalWait( BIT_1 | BIT_2, osWaitForever);
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if(event.value.signals == (BIT_1 | BIT_2))
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{
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BSP_LED_Toggle(LED2);
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}
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}
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}
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/**
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* @brief Signal generator thread
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* @param Thread not used
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* @retval None
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*/
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static void Signal_Gen_Thread(void const *argument)
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{
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(void) argument;
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for(;;)
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{
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osSignalSet( LED1_ThreadId, BIT_0 );
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osDelay(500);
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osSignalSet( LED2_ThreadId, BIT_1 | BIT_2 );
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osDelay(500);
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}
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}
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/**
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* @brief System Clock Configuration
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* The system Clock is configured as follow :
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* System Clock source = PLL (HSE)
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* SYSCLK(Hz) = 100000000
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* HCLK(Hz) = 100000000
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* AHB Prescaler = 1
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* APB1 Prescaler = 2
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* APB2 Prescaler = 1
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* HSE Frequency(Hz) = 8000000
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* PLL_M = 8
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* PLL_N = 200
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* PLL_P = 2
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* PLL_Q = 7
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* PLL_R = 2
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* VDD(V) = 3.3
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* Main regulator output voltage = Scale1 mode
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* Flash Latency(WS) = 3
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* @param None
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* @retval None
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*/
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static void SystemClock_Config(void)
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{
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RCC_ClkInitTypeDef RCC_ClkInitStruct;
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RCC_OscInitTypeDef RCC_OscInitStruct;
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HAL_StatusTypeDef ret = HAL_OK;
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/* Enable Power Control clock */
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__HAL_RCC_PWR_CLK_ENABLE();
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/* The voltage scaling allows optimizing the power consumption when the device is
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clocked below the maximum system frequency, to update the voltage scaling value
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regarding system frequency refer to product datasheet. */
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__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
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/* Enable HSE Oscillator and activate PLL with HSE as source */
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RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
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RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS;
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RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
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RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
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RCC_OscInitStruct.PLL.PLLM = 8;
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RCC_OscInitStruct.PLL.PLLN = 200;
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RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
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RCC_OscInitStruct.PLL.PLLQ = 7;
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RCC_OscInitStruct.PLL.PLLR = 2;
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ret = HAL_RCC_OscConfig(&RCC_OscInitStruct);
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if(ret != HAL_OK)
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{
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while(1) { ; }
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}
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/* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
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clocks dividers */
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RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
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RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
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RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
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RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
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RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
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ret = HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_3);
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if(ret != HAL_OK)
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{
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while(1) { ; }
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}
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}
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#ifdef USE_FULL_ASSERT
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/**
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* @brief Reports the name of the source file and the source line number
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* where the assert_param error has occurred.
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* @param file: pointer to the source file name
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* @param line: assert_param error line source number
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* @retval None
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*/
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void assert_failed(uint8_t* file, uint32_t line)
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{
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/* User can add his own implementation to report the file name and line number,
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ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
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/* Infinite loop */
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while (1)
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{}
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}
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#endif
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