/* USER CODE BEGIN Header */ /** ****************************************************************************** * @file : main.c * @brief : Main program body ****************************************************************************** * @attention * * Copyright (c) 2022 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. * ****************************************************************************** */ /* USER CODE END Header */ /* Includes ------------------------------------------------------------------*/ #include "main.h" #include "tim.h" #include "gpio.h" /* Private includes ----------------------------------------------------------*/ /* USER CODE BEGIN Includes */ #include #include "buzzer.h" /* USER CODE END Includes */ /* Private typedef -----------------------------------------------------------*/ /* USER CODE BEGIN PTD */ typedef enum{ EXAMPLE_BUZZER_START, EXAMPLE_BUZZER_STOP, EXAMPLE_BUZZER_RINGTONE, EXAMPLE_BUZZER_NO_LOOP, EXAMPLE_BUZZER_LOOP }example_buzzer_e; /* USER CODE END PTD */ /* Private define ------------------------------------------------------------*/ /* USER CODE BEGIN PD */ // if you want to use static memry allocation, // uncomment below //#define USE_STATIC_MEM_ALLOCATION /* USER CODE END PD */ /* Private macro -------------------------------------------------------------*/ /* USER CODE BEGIN PM */ #define PWM_TIM &htim3 #define PWM_CHN TIM_CHANNEL_1 /* USER CODE END PM */ /* Private variables ---------------------------------------------------------*/ /* USER CODE BEGIN PV */ #ifndef USE_STATIC_MEM_ALLOCATION buzzer_t mBuzzer; #endif buzzer_t *Buzzer; example_buzzer_e example = EXAMPLE_BUZZER_START; uint8_t nextPattern; /* USER CODE END PV */ /* Private function prototypes -----------------------------------------------*/ void SystemClock_Config(void); /* USER CODE BEGIN PFP */ /* USER CODE END PFP */ /* Private user code ---------------------------------------------------------*/ /* USER CODE BEGIN 0 */ /** * Start PWM */ void pwm_start(){ HAL_TIM_PWM_Start(PWM_TIM, PWM_CHN); } /** * Set the Duty Cycle of the PWM */ void pwm_set_dc(uint32_t dc){ uint32_t arr, comp; arr = __HAL_TIM_GET_AUTORELOAD(PWM_TIM); comp = dc*arr/100; __HAL_TIM_SET_COMPARE(PWM_TIM, PWM_CHN, comp); } /** * Set the Frequency of the PWM */ void pwm_set_freq(uint32_t freq){ uint32_t psc, arr, sys; if (freq > 0){ sys = HAL_RCC_GetSysClockFreq(); arr = __HAL_TIM_GET_AUTORELOAD(PWM_TIM); psc = (sys/(freq*(arr+1)))-1; __HAL_TIM_SET_PRESCALER(PWM_TIM, psc); pwm_set_dc(50); } else __HAL_TIM_SET_COMPARE(PWM_TIM, PWM_CHN, 0); } /** * Timer Callback */ void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim){ if (htim->Instance == TIM9){ buzzer_interrupt(Buzzer); } } /** * Callback from buzzer */ void buzzer_end_callback(buzzer_t *buzzer){ nextPattern = 1; } /* USER CODE END 0 */ /** * @brief The application entry point. * @retval int */ int main(void) { /* USER CODE BEGIN 1 */ #ifdef USE_STATIC_MEM_ALLOCATION Buzzer = malloc(sizeof(buzzer_t)); #else Buzzer = &mBuzzer; #endif /* 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_TIM3_Init(); MX_TIM9_Init(); /* USER CODE BEGIN 2 */ // Configure the Buzzer object Buzzer->interruptMs = 10; // interrupt will be triggered every 10ms Buzzer->fnx.pwmOut = pwm_set_freq; // pass set frequency function // initialize Buzzer buzzer_init(Buzzer); HAL_TIM_Base_Start_IT(&htim9); pwm_start(); nextPattern = 1; /* USER CODE END 2 */ /* Infinite loop */ /* USER CODE BEGIN WHILE */ while (1) { if (nextPattern){ nextPattern = 0; HAL_Delay(500); switch (example){ case EXAMPLE_BUZZER_START: buzzer_turn_on(Buzzer, 1500); nextPattern = 1; break; case EXAMPLE_BUZZER_STOP: buzzer_stop(Buzzer); nextPattern = 1; break; case EXAMPLE_BUZZER_RINGTONE: buzzer_start_array(Buzzer, mario_theme_time, mario_theme_melody, mario_theme_len); break; case EXAMPLE_BUZZER_NO_LOOP: buzzer_start(Buzzer, 500, 750, BUZZER_LOOP_OFF); break; case EXAMPLE_BUZZER_LOOP: buzzer_start(Buzzer, 800, 250, BUZZER_LOOP_ON); break; } example++; } /* 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}; /** Configure the main internal regulator output voltage */ __HAL_RCC_PWR_CLK_ENABLE(); __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1); /** 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 = 8; RCC_OscInitStruct.PLL.PLLN = 100; RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2; RCC_OscInitStruct.PLL.PLLQ = 4; 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_DIV2; RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1; if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_3) != HAL_OK) { Error_Handler(); } } /* USER CODE BEGIN 4 */ /* USER CODE END 4 */ /** * @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 */