网站建设费如何会计处理,常用的网页设计软件,软件技术开发合同,如何分析网站开发语言目录 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 ADC外设配置
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 ADC数据采集
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G…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 ADC外设配置
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 ADC数据采集
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GP2Y10AU气体检测模块进行数据的读取并通过串口来进行显示。
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 ADC外设配置 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
#include stdio.h
#ifdef __GNUC__#define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
#else#define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
#endifPUTCHAR_PROTOTYPE
{HAL_UART_Transmit(huart1,(uint8_t *)ch,1,0xFFFF);//阻塞方式打印return ch;
}
3.2 ADC数据采集
首先在adc.c最下方添加ADC采集程序如下所示
uint16_t ADC_IN_1(void) //ADC采集程序
{HAL_ADC_Start(hadc1);//开始ADC采集HAL_ADC_PollForConversion(hadc1,500);//等待采集结束if(HAL_IS_BIT_SET(HAL_ADC_GetState(hadc1), HAL_ADC_STATE_REG_EOC))//读取ADC完成标志位{return HAL_ADC_GetValue(hadc1);//读出ADC数值}return 0;
}
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 主函数代码整合
首先定义变量接受ADC_IN_1采集数据如下图所示
uint8_t adc_PM2.5;接着进行ADC采样校准如下图所示
HAL_ADCEx_Calibration_Start(hadc1);//ADC采样校准最后进行数据打印如下图所示
adc_mq2 ADC_IN_1();
printf(%d,adc_mq2);
HAL_Delay(500); 所用代码便于复制如下
uint8_t adc_mq2;HAL_ADCEx_Calibration_Start(hadc1);//ADC采样校准adc_mq2 ADC_IN_1();
printf(%d,adc_mq2);
HAL_Delay(200); main.c如下所示
/* 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
#include adc.h
#include usart.h
#include gpio.h/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
uint8_t adc_PM2_5;/* 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/* USER CODE END 2 *//* Infinite loop *//* USER CODE BEGIN WHILE */while (1){adc_PM2_5 ADC_IN_1();printf(%d,adc_PM2_5);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 */4 硬件连接 从左至右依次编号为1-6白色为1红色为6
1---- 5V
2---- GND
3----D0不接
4----GND
5----AO
6----5V 5 效果展示 上文如有错误恳请各位大佬指正。
