/* USER CODE BEGIN Header */
/********************************************************************************* @file : main.h* @brief : Header for main.c file.* This file contains the common defines of the application.******************************************************************************* @attention** Copyright (c) 2025 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 *//* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __MAIN_H
#define __MAIN_H#ifdef __cplusplus
extern "C" {
#endif/* Includes ------------------------------------------------------------------*/
#include "stm32u5xx_hal.h"/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "stdio.h"
/* USER CODE END Includes *//* Exported types ------------------------------------------------------------*/
/* USER CODE BEGIN ET *//* USER CODE END ET *//* Exported constants --------------------------------------------------------*/
/* USER CODE BEGIN EC *//* USER CODE END EC *//* Exported macro ------------------------------------------------------------*/
/* USER CODE BEGIN EM *//* USER CODE END EM *//* Exported functions prototypes ---------------------------------------------*/
void Error_Handler(void);/* USER CODE BEGIN EFP *//* USER CODE END EFP *//* Private defines -----------------------------------------------------------*//* USER CODE BEGIN Private defines *//* USER CODE END Private defines */#ifdef __cplusplus
}
#endif#endif /* __MAIN_H */
4）main.c
/* USER CODE BEGIN Header */
/********************************************************************************* @file : main.c* @brief : Main program body******************************************************************************* @attention** Copyright (c) 2025 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 "i2c.h"
#include "usart.h"
#include "gpio.h"/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "sht20.h"
/* 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 ---------------------------------------------------------*//* USER CODE BEGIN PV */
int fputc(int ch, FILE* stream)
{HAL_UART_Transmit(&huart1, (uint8_t*)&ch, 1, 5);return ch;
}
/* USER CODE END PV *//* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void SystemPower_Config(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();/* Configure the System Power */SystemPower_Config();/* USER CODE BEGIN SysInit *//* USER CODE END SysInit *//* Initialize all configured peripherals */MX_GPIO_Init();MX_I2C1_Init();MX_USART1_UART_Init();/* USER CODE BEGIN 2 */uint16_t temp,hum;/* USER CODE END 2 *//* Infinite loop *//* USER CODE BEGIN WHILE */while (1){temp=SHT20_Get_Data(TEMP_CMD);hum=SHT20_Get_Data(HUM_CMD);SHT20_Digital_to_Analog(temp,hum);/* 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*/if (HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1) != HAL_OK){Error_Handler();}/** Initializes the CPU, AHB and APB buses clocks*/RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_MSI;RCC_OscInitStruct.MSIState = RCC_MSI_ON;RCC_OscInitStruct.MSICalibrationValue = RCC_MSICALIBRATION_DEFAULT;RCC_OscInitStruct.MSIClockRange = RCC_MSIRANGE_0;RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_MSI;RCC_OscInitStruct.PLL.PLLMBOOST = RCC_PLLMBOOST_DIV4;RCC_OscInitStruct.PLL.PLLM = 3;RCC_OscInitStruct.PLL.PLLN = 10;RCC_OscInitStruct.PLL.PLLP = 2;RCC_OscInitStruct.PLL.PLLQ = 2;RCC_OscInitStruct.PLL.PLLR = 1;RCC_OscInitStruct.PLL.PLLRGE = RCC_PLLVCIRANGE_1;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_PCLK3;RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;RCC_ClkInitStruct.APB3CLKDivider = RCC_HCLK_DIV1;if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4) != HAL_OK){Error_Handler();}
}/*** @brief Power Configuration* @retval None*/
static void SystemPower_Config(void)
{/** Disable the internal Pull-Up in Dead Battery pins of UCPD peripheral*/HAL_PWREx_DisableUCPDDeadBattery();
/* USER CODE BEGIN PWR */
/* USER CODE END PWR */
}/* 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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七层网络协议概述七层网络协议，即OSI（Open Systems Interconnection）模型，是由国际标准化组织（ISO）提出的网络通信框架。它将网络通信过程划分为七个层次，每一层负责特定的功能，并通…
创建新工程，如上图所示，找到 STM32U575RIT6 芯片，双击或者点击右上角的
按钮开始工程。
，设置时钟频率：
直接生成代码。
，选择 C / C++，按下图设置
