目录
1、简介
2、CubeMX初始化配置
2.1 基础配置
2.1.1 SYS配置
2.1.2 RCC配置
2.2 软件IIC引脚配置
2.3串口外设配置
2.4 项目生成
3、KEIL端程序整合
3.1 串口重映射
3.2 SHT30驱动添加
3.3 主函数代
3.4 效果展示
1、简介
本文通过STM32F103C8T6单片机通过HAL库方式对SHT30传感器进行数据的读取，并通过串口来进行显示。本次通过软件IIC对SHT30传感器进行数据读取。
2、CubeMX初始化配置
2.1 基础配置
2.1.1 SYS配置
2.1.2 RCC配置
2.2 软件IIC引脚配置
2.3串口外设配置
2.4 项目生成
3、KEIL端程序整合
3.1 串口重映射
具体步骤：stm32(HAL库)使用printf函数打印到串口
3.2 SHT30驱动添加
首先在建立Hardware文件，添加SHT30.c如下图所示：
接着对SHT30.H进行添加如下图所示：
SHT30驱动链接：
SHT30 /s/QrLwn5ACDLh 点击链接保存，或者复制本段内容，打开「阿里云盘」APP ，无需下载极速在线查看，视频原画倍速播放。
接着在adc.h中进行函数声明，如下图所示：
uint16_t ADC_IN_1(void);//ADC采集程序
3.3 主函数代
首先声明变量存放温湿度数据，如下图所示：
接着初始化SHT3x，如下图所示：
最后进行数据读取打印，如下图所示：
所用代码（便于复制）如下：
#include "SHT3x.h"float Temp,Hum;//声明变量存放温湿度数据SHT3x_Init(); //初始化SHT3xReadSHT3x(&Hum,&Temp);printf("%f\r\n",Hum);printf("%f\r\n",Temp);HAL_Delay(500);
main.c如下所示：
/* USER CODE BEGIN Header *//********************************************************************************* @file : main.c* @brief: Main program body******************************************************************************* @attention** Copyright (c) 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 "adc.h"#include "usart.h"#include "gpio.h"/* Private includes ----------------------------------------------------------*//* USER CODE BEGIN Includes */#include "OLED.h"#include "SHT3x.h"uint8_t adc_mq2;float Temp,Hum;//声明变量存放温湿度数据/* 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 *//* 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 *//* 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_ADC1_Init();MX_USART1_UART_Init();/* USER CODE BEGIN 2 */HAL_ADCEx_Calibration_Start(&hadc1);//ADC采样校准OLED_Init(); //初始化OLEDSHT3x_Init(); //初始化SHT3x/* USER CODE END 2 *//* Infinite loop *//* USER CODE BEGIN WHILE */while (1){ReadSHT3x(&Hum,&Temp);printf("%f\r\n",Hum);printf("%f\r\n",Temp);HAL_Delay(500);/* 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};RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};/** Initializes the RCC Oscillators according to the specified parameters* in the RCC_OscInitTypeDef structure.*/RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;RCC_OscInitStruct.HSEState = RCC_HSE_ON;RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;RCC_OscInitStruct.HSIState = RCC_HSI_ON;RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;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_2) != HAL_OK){Error_Handler();}PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_ADC;PeriphClkInit.AdcClockSelection = RCC_ADCPCLK2_DIV6;if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != 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 */
3.4 效果展示
上文如有错误，恳请各位大佬指正。
