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/* USER CODE BEGIN Header */ /** ****************************************************************************** * @file : main.c * @brief : Main program body ****************************************************************************** * @attention * * Copyright (c) 2024 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<stm32h7xx.h> #include<stdio.h> #include<string.h> #include<stdlib.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 */ /* USER CODE END PM */ /* Private variables ---------------------------------------------------------*/ TIM_HandleTypeDef htim2; TIM_HandleTypeDef htim6; TIM_HandleTypeDef htim7; UART_HandleTypeDef huart3; /* USER CODE BEGIN PV */ /* USER CODE END PV */ /* Private function prototypes -----------------------------------------------*/ void SystemClock_Config(void); static void MX_GPIO_Init(void); static void MX_USART3_UART_Init(void); static void MX_USB_OTG_HS_USB_Init(void); static void MX_TIM2_Init(void); static void MX_TIM6_Init(void); static void MX_TIM7_Init(void); uint8_t prompt[] = "DO YOU WANT TO START THE SYSTEM (Y/N)?\r\n"; uint8_t tx1[] ="System power ON\r\n"; uint8_t tx2[] = "System is on standby mode. Respond with 'Y' to start the system\r\n"; uint8_t tx3[] = "Invalid command, please press Y or N\r\n"; uint8_t sb[] = "Is the seat belt fastened?(Y/N)\r\n"; uint8_t y[] = "Seat belt is securely fastened\r\n"; uint8_t n[] = "Warning: Please fasten the seat belt immediately\r\n"; uint8_t em[] = "Emergency Braking is Activated\r\n"; int speed = 0; char ch; char chh; char message[50]; /* 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_USART3_UART_Init(); MX_USB_OTG_HS_USB_Init(); MX_TIM2_Init(); MX_TIM6_Init(); MX_TIM7_Init(); /* USER CODE BEGIN 2 */ /* USER CODE END 2 */ /* Infinite loop */ /* USER CODE BEGIN WHILE */ HAL_UART_Transmit(&huart3, prompt, sizeof(prompt), HAL_MAX_DELAY); if(HAL_UART_Receive(&huart3, &ch, sizeof(ch), HAL_MAX_DELAY) == HAL_OK) { HAL_UART_Transmit(&huart3, &ch, sizeof(ch), HAL_MAX_DELAY); if(ch == 'Y') { HAL_UART_Transmit(&huart3, tx1, sizeof(tx1), HAL_MAX_DELAY); HAL_TIM_Base_Start_IT(&htim2); } else if (ch == 'N') { HAL_UART_Transmit(&huart3, tx2, sizeof(tx2), HAL_MAX_DELAY); } else { HAL_UART_Transmit(&huart3, tx3, sizeof(tx3), HAL_MAX_DELAY); } } while (1) { /* USER CODE END WHILE */ /* USER CODE BEGIN 3 */ } /* USER CODE END 3 */ } void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim) { if (htim == &htim2) { //HAL_UART_Transmit(&huart3, speed, sizeof(speed), HAL_MAX_DELAY); speed += 4; sprintf(message,"Current Speed : %d\r\n",speed); //to print the incremented speed HAL_UART_Transmit(&huart3,(uint8_t*)message,strlen(message),HAL_MAX_DELAY); if(speed == 20) { HAL_UART_Transmit(&huart3, sb, sizeof(sb), HAL_MAX_DELAY); if(HAL_UART_Receive(&huart3, &ch, sizeof(ch), HAL_MAX_DELAY) == HAL_OK) { HAL_UART_Transmit(&huart3, &ch, sizeof(ch), HAL_MAX_DELAY); if (ch == 'Y') { HAL_UART_Transmit(&huart3, y, sizeof(y), HAL_MAX_DELAY); //continue; } else if (ch == 'N') { HAL_UART_Transmit(&huart3, n, sizeof(n), HAL_MAX_DELAY); } else { HAL_UART_Transmit(&huart3, tx3, sizeof(tx3), HAL_MAX_DELAY); } } } if(speed == 40 && (ch == 'N')) { sprintf(message,"Current Speed : %d\r\n",speed); //to print the incremented speed HAL_UART_Transmit(&huart3,(uint8_t*)message,strlen(message),HAL_MAX_DELAY); HAL_GPIO_TogglePin(GPIOA, GPIO_PIN_5); HAL_UART_Transmit(&huart3, em, sizeof(em), HAL_MAX_DELAY); speed = 0; } } } /** * @brief System Clock Configuration * @retval None */ void SystemClock_Config(void) { RCC_OscInitTypeDef RCC_OscInitStruct = {0}; RCC_ClkInitTypeDef RCC_ClkInitStruct = {0}; /*AXI clock gating */ RCC->CKGAENR = 0xFFFFFFFF; /** Supply configuration update enable */ HAL_PWREx_ConfigSupply(PWR_DIRECT_SMPS_SUPPLY); /** Configure the main internal regulator output voltage */ __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE0); while(!__HAL_PWR_GET_FLAG(PWR_FLAG_VOSRDY)) {} /** Initializes the RCC Oscillators according to the specified parameters * in the RCC_OscInitTypeDef structure. */ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI48|RCC_OSCILLATORTYPE_HSE; RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS; RCC_OscInitStruct.HSI48State = RCC_HSI48_ON; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE; RCC_OscInitStruct.PLL.PLLM = 1; RCC_OscInitStruct.PLL.PLLN = 20; RCC_OscInitStruct.PLL.PLLP = 2; RCC_OscInitStruct.PLL.PLLQ = 4; RCC_OscInitStruct.PLL.PLLR = 2; RCC_OscInitStruct.PLL.PLLRGE = RCC_PLL1VCIRANGE_3; RCC_OscInitStruct.PLL.PLLVCOSEL = RCC_PLL1VCOWIDE; RCC_OscInitStruct.PLL.PLLFRACN = 0; 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_CLOCKTYPE_D3PCLK1|RCC_CLOCKTYPE_D1PCLK1; RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK; RCC_ClkInitStruct.SYSCLKDivider = RCC_SYSCLK_DIV1; RCC_ClkInitStruct.AHBCLKDivider = RCC_HCLK_DIV1; RCC_ClkInitStruct.APB3CLKDivider = RCC_APB3_DIV1; RCC_ClkInitStruct.APB1CLKDivider = RCC_APB1_DIV1; RCC_ClkInitStruct.APB2CLKDivider = RCC_APB2_DIV1; RCC_ClkInitStruct.APB4CLKDivider = RCC_APB4_DIV1; if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK) { Error_Handler(); } } /** * @brief TIM2 Initialization Function * @param None * @retval None */ static void MX_TIM2_Init(void) { /* USER CODE BEGIN TIM2_Init 0 */ /* USER CODE END TIM2_Init 0 */ TIM_ClockConfigTypeDef sClockSourceConfig = {0}; TIM_MasterConfigTypeDef sMasterConfig = {0}; /* USER CODE BEGIN TIM2_Init 1 */ /* USER CODE END TIM2_Init 1 */ htim2.Instance = TIM2; htim2.Init.Prescaler = 40000; htim2.Init.CounterMode = TIM_COUNTERMODE_UP; htim2.Init.Period = 2000; htim2.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1; htim2.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE; if (HAL_TIM_Base_Init(&htim2) != HAL_OK) { Error_Handler(); } sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL; if (HAL_TIM_ConfigClockSource(&htim2, &sClockSourceConfig) != HAL_OK) { Error_Handler(); } sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET; sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE; if (HAL_TIMEx_MasterConfigSynchronization(&htim2, &sMasterConfig) != HAL_OK) { Error_Handler(); } /* USER CODE BEGIN TIM2_Init 2 */ /* USER CODE END TIM2_Init 2 */ } /** * @brief TIM6 Initialization Function * @param None * @retval None */ static void MX_TIM6_Init(void) { /* USER CODE BEGIN TIM6_Init 0 */ /* USER CODE END TIM6_Init 0 */ TIM_MasterConfigTypeDef sMasterConfig = {0}; /* USER CODE BEGIN TIM6_Init 1 */ /* USER CODE END TIM6_Init 1 */ htim6.Instance = TIM6; htim6.Init.Prescaler = 40000; htim6.Init.CounterMode = TIM_COUNTERMODE_UP; htim6.Init.Period = 10000; htim6.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE; if (HAL_TIM_Base_Init(&htim6) != HAL_OK) { Error_Handler(); } sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET; sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE; if (HAL_TIMEx_MasterConfigSynchronization(&htim6, &sMasterConfig) != HAL_OK) { Error_Handler(); } /* USER CODE BEGIN TIM6_Init 2 */ /* USER CODE END TIM6_Init 2 */ } /** * @brief TIM7 Initialization Function * @param None * @retval None */ static void MX_TIM7_Init(void) { /* USER CODE BEGIN TIM7_Init 0 */ /* USER CODE END TIM7_Init 0 */ TIM_MasterConfigTypeDef sMasterConfig = {0}; /* USER CODE BEGIN TIM7_Init 1 */ /* USER CODE END TIM7_Init 1 */ htim7.Instance = TIM7; htim7.Init.Prescaler = 40000; htim7.Init.CounterMode = TIM_COUNTERMODE_UP; htim7.Init.Period = 20000; htim7.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE; if (HAL_TIM_Base_Init(&htim7) != HAL_OK) { Error_Handler(); } sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET; sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE; if (HAL_TIMEx_MasterConfigSynchronization(&htim7, &sMasterConfig) != HAL_OK) { Error_Handler(); } /* USER CODE BEGIN TIM7_Init 2 */ /* USER CODE END TIM7_Init 2 */ } /** * @brief USART3 Initialization Function * @param None * @retval None */ static void MX_USART3_UART_Init(void) { /* USER CODE BEGIN USART3_Init 0 */ /* USER CODE END USART3_Init 0 */ /* USER CODE BEGIN USART3_Init 1 */ /* USER CODE END USART3_Init 1 */ huart3.Instance = USART3; huart3.Init.BaudRate = 115200; huart3.Init.WordLength = UART_WORDLENGTH_8B; huart3.Init.StopBits = UART_STOPBITS_1; huart3.Init.Parity = UART_PARITY_NONE; huart3.Init.Mode = UART_MODE_TX_RX; huart3.Init.HwFlowCtl = UART_HWCONTROL_NONE; huart3.Init.OverSampling = UART_OVERSAMPLING_16; huart3.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE; huart3.Init.ClockPrescaler = UART_PRESCALER_DIV1; huart3.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT; if (HAL_UART_Init(&huart3) != HAL_OK) { Error_Handler(); } if (HAL_UARTEx_SetTxFifoThreshold(&huart3, UART_TXFIFO_THRESHOLD_1_8) != HAL_OK) { Error_Handler(); } if (HAL_UARTEx_SetRxFifoThreshold(&huart3, UART_RXFIFO_THRESHOLD_1_8) != HAL_OK) { Error_Handler(); } if (HAL_UARTEx_DisableFifoMode(&huart3) != HAL_OK) { Error_Handler(); } /* USER CODE BEGIN USART3_Init 2 */ /* USER CODE END USART3_Init 2 */ } /** * @brief USB_OTG_HS Initialization Function * @param None * @retval None */ static void MX_USB_OTG_HS_USB_Init(void) { /* USER CODE BEGIN USB_OTG_HS_Init 0 */ /* USER CODE END USB_OTG_HS_Init 0 */ /* USER CODE BEGIN USB_OTG_HS_Init 1 */ /* USER CODE END USB_OTG_HS_Init 1 */ /* USER CODE BEGIN USB_OTG_HS_Init 2 */ /* USER CODE END USB_OTG_HS_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_GPIOC_CLK_ENABLE(); __HAL_RCC_GPIOF_CLK_ENABLE(); __HAL_RCC_GPIOH_CLK_ENABLE(); __HAL_RCC_GPIOB_CLK_ENABLE(); __HAL_RCC_GPIOD_CLK_ENABLE(); __HAL_RCC_GPIOG_CLK_ENABLE(); __HAL_RCC_GPIOA_CLK_ENABLE(); __HAL_RCC_GPIOE_CLK_ENABLE(); /*Configure GPIO pin Output Level */ HAL_GPIO_WritePin(USB_FS_PWR_EN_GPIO_Port, USB_FS_PWR_EN_Pin, GPIO_PIN_RESET); /*Configure GPIO pin Output Level */ HAL_GPIO_WritePin(GPIOB, LD1_Pin|LD3_Pin, GPIO_PIN_RESET); /*Configure GPIO pin Output Level */ HAL_GPIO_WritePin(LD2_GPIO_Port, LD2_Pin, GPIO_PIN_RESET); /*Configure GPIO pin : B1_Pin */ GPIO_InitStruct.Pin = B1_Pin; GPIO_InitStruct.Mode = GPIO_MODE_INPUT; GPIO_InitStruct.Pull = GPIO_NOPULL; HAL_GPIO_Init(B1_GPIO_Port, &GPIO_InitStruct); /*Configure GPIO pin : USB_FS_PWR_EN_Pin */ GPIO_InitStruct.Pin = USB_FS_PWR_EN_Pin; GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; HAL_GPIO_Init(USB_FS_PWR_EN_GPIO_Port, &GPIO_InitStruct); /*Configure GPIO pins : LD1_Pin LD3_Pin */ GPIO_InitStruct.Pin = LD1_Pin|LD3_Pin; GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; HAL_GPIO_Init(GPIOB, &GPIO_InitStruct); /*Configure GPIO pin : USB_FS_OVCR_Pin */ GPIO_InitStruct.Pin = USB_FS_OVCR_Pin; GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING; GPIO_InitStruct.Pull = GPIO_NOPULL; HAL_GPIO_Init(USB_FS_OVCR_GPIO_Port, &GPIO_InitStruct); /*Configure GPIO pin : USB_FS_VBUS_Pin */ GPIO_InitStruct.Pin = USB_FS_VBUS_Pin; GPIO_InitStruct.Mode = GPIO_MODE_INPUT; GPIO_InitStruct.Pull = GPIO_NOPULL; HAL_GPIO_Init(USB_FS_VBUS_GPIO_Port, &GPIO_InitStruct); /*Configure GPIO pin : USB_FS_ID_Pin */ GPIO_InitStruct.Pin = USB_FS_ID_Pin; GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; GPIO_InitStruct.Alternate = GPIO_AF10_OTG1_HS; HAL_GPIO_Init(USB_FS_ID_GPIO_Port, &GPIO_InitStruct); /*Configure GPIO pins : USB_FS_N_Pin USB_FS_P_Pin */ GPIO_InitStruct.Pin = USB_FS_N_Pin|USB_FS_P_Pin; GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); /*Configure GPIO pin : LD2_Pin */ GPIO_InitStruct.Pin = LD2_Pin; GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; HAL_GPIO_Init(LD2_GPIO_Port, &GPIO_InitStruct); } /* 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 */
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