/* USER CODE BEGIN Header */ /** ****************************************************************************** * @file : main.c * @brief : Main program body ****************************************************************************** * @attention * * Copyright (c) 2023 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" /* Private includes ----------------------------------------------------------*/ /* USER CODE BEGIN Includes */ #include #include /* 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 ---------------------------------------------------------*/ UART_HandleTypeDef huart1; /* USER CODE BEGIN PV */ uint8_t Rxdata[1]; int flag=0; char result[2]; /* USER CODE END PV */ /* Private function prototypes -----------------------------------------------*/ void SystemClock_Config(void); static void MX_GPIO_Init(void); static void MX_USART1_UART_Init(void); /* 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_USART1_UART_Init(); /* USER CODE BEGIN 2 */ LCD_init(); HAL_UART_Receive_IT(&huart1, Rxdata, sizeof(Rxdata)); /* USER CODE END 2 */ /* Infinite loop */ /* USER CODE BEGIN WHILE */ while (1) { if(flag==1) { HAL_UART_Transmit(&huart1, Rxdata, sizeof(Rxdata), 1000); //itoa(Rxdata,result,10); HAL_Delay(100); } //itoa(Rxdata,result,10); // sprintf(result,"%d\n",Rxdata); LCD_Command(0x80); //show(result); LCD_data(Rxdata); HAL_Delay(100); /* 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}; /** 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_NONE; 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_HSI; 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_0) != HAL_OK) { Error_Handler(); } } /** * @brief USART1 Initialization Function * @param None * @retval None */ static void MX_USART1_UART_Init(void) { /* USER CODE BEGIN USART1_Init 0 */ /* USER CODE END USART1_Init 0 */ /* USER CODE BEGIN USART1_Init 1 */ /* USER CODE END USART1_Init 1 */ huart1.Instance = USART1; huart1.Init.BaudRate = 115200; huart1.Init.WordLength = UART_WORDLENGTH_8B; huart1.Init.StopBits = UART_STOPBITS_1; huart1.Init.Parity = UART_PARITY_NONE; huart1.Init.Mode = UART_MODE_TX_RX; huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE; huart1.Init.OverSampling = UART_OVERSAMPLING_16; if (HAL_UART_Init(&huart1) != HAL_OK) { Error_Handler(); } /* USER CODE BEGIN USART1_Init 2 */ /* USER CODE END USART1_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(); /*Configure GPIO pin Output Level */ HAL_GPIO_WritePin(GPIOB, GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_4|GPIO_PIN_5 |GPIO_PIN_6|GPIO_PIN_7, GPIO_PIN_RESET); /*Configure GPIO pins : PB0 PB1 PB4 PB5 PB6 PB7 */ GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_4|GPIO_PIN_5 |GPIO_PIN_6|GPIO_PIN_7; 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); } /* USER CODE BEGIN 4 */ void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart) { flag=1; } void LCD_Command(unsigned char cmd) { HAL_GPIO_WritePin(GPIOB,GPIO_PIN_0,GPIO_PIN_RESET); HAL_Delay(10); GPIOB -> ODR = (cmd); HAL_GPIO_WritePin(GPIOB,GPIO_PIN_1,GPIO_PIN_SET); HAL_Delay(10); HAL_GPIO_WritePin(GPIOB,GPIO_PIN_1,GPIO_PIN_RESET); HAL_Delay(10); GPIOB -> ODR = (cmd<<4); HAL_GPIO_WritePin(GPIOB,GPIO_PIN_0,GPIO_PIN_RESET); HAL_Delay(10); HAL_GPIO_WritePin(GPIOB,GPIO_PIN_1,GPIO_PIN_SET); HAL_Delay(10); HAL_GPIO_WritePin(GPIOB,GPIO_PIN_1,GPIO_PIN_RESET); HAL_Delay(10); } void LCD_data(unsigned char data) { HAL_GPIO_WritePin(GPIOB,GPIO_PIN_0,GPIO_PIN_SET); HAL_Delay(10); GPIOB -> ODR = (data); HAL_GPIO_WritePin(GPIOB,GPIO_PIN_1,GPIO_PIN_SET); HAL_Delay(10); HAL_GPIO_WritePin(GPIOB,GPIO_PIN_1,GPIO_PIN_RESET); HAL_Delay(10); GPIOB -> ODR = (data<<4); HAL_GPIO_WritePin(GPIOB,GPIO_PIN_0,GPIO_PIN_SET); HAL_Delay(10); HAL_GPIO_WritePin(GPIOB,GPIO_PIN_1,GPIO_PIN_SET); HAL_Delay(10); HAL_GPIO_WritePin(GPIOB,GPIO_PIN_1,GPIO_PIN_RESET); HAL_Delay(10); } void LCD_init() { LCD_Command(0X02); LCD_Command(0X28); LCD_Command(0X80); LCD_Command(0X0C); LCD_Command(0X06); } void show(unsigned char *s) { while(*s) { LCD_data(*s++); } } /* 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 */