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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 GPIO配置 2.5 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 主函数代码整合
4 硬件连接
5 效果展示 1、简介
本文通过STM32…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 GPIO配置 2.5 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 主函数代码整合
4 硬件连接
5 效果展示 1、简介
本文通过STM32F103C8T6单片机通过HAL库方式对AD8232心率传感器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 GPIO配置 2.5 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 ADC数据采集
首先在adc.c最下方添加ADC采集程序如下所示
代码如下 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
首先在mian.h进行宏定义如下所示
#define LD0 HAL_GPIO_ReadPin(LD__GPIO_Port, LD__Pin)
#define LD1 HAL_GPIO_ReadPin(LD_B13_GPIO_Port, LD_B13_Pin)
首先定义变量接受ADC_IN_1采集数据如下所示
uint8_t adc_AD8232;
接着在主函数While循环上方进行ADC采样校准如下所示
HAL_ADCEx_Calibration_Start(hadc1);//ADC采样校准 最后while循环中进行数据打印如下所示
while (1){if(LD01||LD11){printf(error); }else{adc_AD8232 ADC_IN_1()/10;printf(%d,adc_AD8232);}HAL_Delay(500);/* USER CODE END WHILE *//* USER CODE BEGIN 3 */}
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_AD8232;
/* 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){if(LD01||LD11){printf(error); }else{adc_AD8232 ADC_IN_1()/10;printf(%d,adc_AD8232);}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
VCC ---- 3.3V
GND ---- GND
OUTPUT ---- PA1(ADC引脚)
LD ---- PB12(GPIO输入)
LD- ---- PB13(GPIO输入)
SDA ---- PB14(GPIO高电平输出)
注意
LOD-LOD接到身上的三个电极当接口脱落这两个口某一个口会变为高电平。
SDN 开启和关闭模块功能接到GPIO输出口给它高电平则模块工作给低电平则不工作。
5 效果展示
传感器接到身上效果如下 传感器接口脱落效果如下 上文如有错误恳请各位大佬指正。
