首页 > 其他分享 >嘉立创暑期训练营——温湿度检测仪

嘉立创暑期训练营——温湿度检测仪

时间：2024-07-18 08:58:50浏览次数：13  
标签：TIM3 CODE HAL 检测仪 温湿度 TIM 嘉立 USER GPIO

1.引言

        本次暑假参加了立创EDA的训练营，在备战电赛的同时完成了训练营的基本内容，在于锻炼自己的能力。

 2.原理图和PCB       

        闲话少续，直接上正片。

原理图 

PCB

 原理图和PCB都可以按照立创EDA的教程。

连接我就放在这了：https://www.bilibili.com/video/BV1k4421U7uh/?spm_id_from=333.999.0.0&vd_source=d3f507653efa4093bc0bacb0ea320b7a

3.焊接和试验 

         焊接没什么好说的，保持从小到大，从下到小的顺序焊接。

4.软件部分

         使用的HAL库，STM32cube进行配置。

1.IIC时序代码

        IIC.c

//SCL为高电平期间，SDA从高电平往低电平进行跳变
//延时时间根据期间不同需要进行对应的改变
void iic_start(void)
{
    IIC_SDA(1);
    IIC_SCL(1);
    iic_delay();
    IIC_SDA(0);
    iic_delay();
}
//SCL为高电平期间，SDA从低电平往高电平跳变
void iic_stop(void)
{
    IIC_SDA(0);
    IIC_SCL(1);
    iic_delay();
    IIC_SDA(1);
    iic_delay();
}
//有应答返回0，没有应答返回1
uint8_t iic_wait_ack(void)
{
    IIC_SDA(1);		//主机释放SDA总线
    iic_delay();
    IIC_SCL(1);		//拉高时钟线，等待从机返回ACK
    iic_delay();
    if(IIC_READ_SDA() == 1)	//如果数据线没有变化
    {
        iic_stop();
        return 1;
    }
    IIC_SCL(0);		//SCL低电平表示结束ACK检查
    iic_delay();
    return 0;
}
void iic_ack(void)
{
    IIC_SCL(0);		//先拉低时钟线
    iic_delay();
    IIC_SDA(0);		//数据线为低电平，表示应答
    iic_delay();
    IIC_SCL(1);		
    iic_delay();
}
void iic_nack(void)
{
    IIC_SCL(0);		//先拉低时钟线
    iic_delay();
    IIC_SDA(1);		//数据线为高电平，表示非应答
    iic_delay();
    IIC_SCL(1);		
    iic_delay();
}
void iic_send_byte(uint8_t data)
{
    uint8_t i = 0;
    for(i =0;i<8;i++)
    {
        IIC_SDA((data&0x80)>>7);
        iic_delay();
        IIC_SCL(1);
        iic_delay();
        IIC_SCL(0);
        data=data<<1;
    }
    IIC_SDA(1);
}
uint8_t iic_read_byte(uint8_t ack)
{
    uint8_t receive = 0;
    uint8_t i = 0;
    for(i=0;i<8;i++)
    {
        receive = receive<<1;
        IIC_SCL(1);
        iic_delay();
        if(IIC_READ_SDA()==1)
        {
            receive++;
        }
        IIC_SCL(0);
        iic_delay();
    }
    if(ack){
        iic_ack();
    }
    else{
        iic_nack();
    }
    return receive;
}

         IIC.h

#ifndef __I2C_H__
#define __I2C_H__

#ifdef __cplusplus
extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include "main.h"

/* USER CODE BEGIN Includes */

/* USER CODE END Includes */

extern I2C_HandleTypeDef hi2c1;

/* USER CODE BEGIN Private defines */

/* USER CODE END Private defines */

void MX_I2C1_Init(void);

/* USER CODE BEGIN Prototypes */

/* USER CODE END Prototypes */

#ifdef __cplusplus
}
#endif

#endif /* __I2C_H__ */

        这个句柄在i2c.h头文件中进行了声明，后续我们直接使用即可。

I2C_HandleTypeDef hi2c1;

2.gpio配置 

        gpio.c

/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file    gpio.c
  * @brief   This file provides code for the configuration
  *          of all used GPIO pins.
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2024 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 "gpio.h"

/* USER CODE BEGIN 0 */

/* USER CODE END 0 */

/*----------------------------------------------------------------------------*/
/* Configure GPIO                                                             */
/*----------------------------------------------------------------------------*/
/* USER CODE BEGIN 1 */
//0~9，外加一个小数点
uint16_t sgh_value[11]={0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F,0x80};

/* USER CODE END 1 */

/** Configure pins as
        * Analog
        * Input
        * Output
        * EVENT_OUT
        * EXTI
*/
void MX_GPIO_Init(void)
{

  GPIO_InitTypeDef GPIO_InitStruct = {0};

  /* GPIO Ports Clock Enable */
  __HAL_RCC_GPIOB_CLK_ENABLE();
  __HAL_RCC_GPIOC_CLK_ENABLE();
  __HAL_RCC_GPIOA_CLK_ENABLE();

  /*Configure GPIO pin Output Level */
  HAL_GPIO_WritePin(GPIOA, LED2_SER_Pin|LED2_RCLK_Pin|LED2_SCLK_Pin|DIG_SER_Pin
                          |DIG_RCLK_Pin|DIG_SCLK_Pin|LED1_RCLK_Pin|LED1_SCLK_Pin, GPIO_PIN_RESET);

  /*Configure GPIO pin Output Level */
  HAL_GPIO_WritePin(LED1_SER_GPIO_Port, LED1_SER_Pin, GPIO_PIN_RESET);

  /*Configure GPIO pins : PAPin PAPin PAPin PAPin
                           PAPin PAPin PAPin PAPin */
  GPIO_InitStruct.Pin = LED2_SER_Pin|LED2_RCLK_Pin|LED2_SCLK_Pin|DIG_SER_Pin
                          |DIG_RCLK_Pin|DIG_SCLK_Pin|LED1_RCLK_Pin|LED1_SCLK_Pin;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

  /*Configure GPIO pin : PtPin */
  GPIO_InitStruct.Pin = LED1_SER_Pin;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
  HAL_GPIO_Init(LED1_SER_GPIO_Port, &GPIO_InitStruct);

}

/* USER CODE BEGIN 2 */

void SN74HC595_Send_Data(unsigned char sn_num,unsigned int sendValue)
{
	uint8_t i = 0;
	if(sn_num == SN_LED1)	//第一个数码管
	{
		for(i = 0;i < 8;i++)
		{
			if(((sendValue << i)&0x80)!=0)	//如果数据第一位是1
			{
				HAL_GPIO_WritePin(LED1_SER_GPIO_Port,LED1_SER_Pin,GPIO_PIN_SET);		//高电平
			}
			else
			{
				HAL_GPIO_WritePin(LED1_SER_GPIO_Port,LED1_SER_Pin,GPIO_PIN_RESET);	//低电平
			}
			HAL_GPIO_WritePin(LED1_SCLK_GPIO_Port,LED1_SCLK_Pin,GPIO_PIN_RESET);	//产生一个SCLK上升沿
			HAL_GPIO_WritePin(LED1_SCLK_GPIO_Port,LED1_SCLK_Pin,GPIO_PIN_SET);
			}
		HAL_GPIO_WritePin(LED1_RCLK_GPIO_Port,LED1_RCLK_Pin,GPIO_PIN_RESET);	//产生一个RCLK上升沿
		HAL_GPIO_WritePin(LED1_RCLK_GPIO_Port,LED1_RCLK_Pin,GPIO_PIN_SET);
	}
	else if(sn_num == SN_LED2)
	{
		for(i = 0;i < 8;i++)
		{
			if(((sendValue << i)&0x80)!=0)
			{
				HAL_GPIO_WritePin(LED2_SER_GPIO_Port,LED2_SER_Pin,GPIO_PIN_SET);
			}
			else
			{
				HAL_GPIO_WritePin(LED2_SER_GPIO_Port,LED2_SER_Pin,GPIO_PIN_RESET);
			}
			HAL_GPIO_WritePin(LED2_SCLK_GPIO_Port,LED2_SCLK_Pin,GPIO_PIN_RESET);
			HAL_GPIO_WritePin(LED2_SCLK_GPIO_Port,LED2_SCLK_Pin,GPIO_PIN_SET);
		}
		HAL_GPIO_WritePin(LED2_RCLK_GPIO_Port,LED2_RCLK_Pin,GPIO_PIN_RESET);
		HAL_GPIO_WritePin(LED2_RCLK_GPIO_Port,LED2_RCLK_Pin,GPIO_PIN_SET);	
	}
	else if(sn_num == SN_DIG)
	{
		for(i = 0;i < 8;i++)
		{
			if(((sendValue << i)&0x80)!=0)
			{
				HAL_GPIO_WritePin(DIG_SER_GPIO_Port,DIG_SER_Pin,GPIO_PIN_SET);
			}
			else
			{
				HAL_GPIO_WritePin(DIG_SER_GPIO_Port,DIG_SER_Pin,GPIO_PIN_RESET);
			}
			HAL_GPIO_WritePin(DIG_SCLK_GPIO_Port,DIG_SCLK_Pin,GPIO_PIN_RESET);
			HAL_GPIO_WritePin(DIG_SCLK_GPIO_Port,DIG_SCLK_Pin,GPIO_PIN_SET);
		}
		HAL_GPIO_WritePin(DIG_RCLK_GPIO_Port,DIG_RCLK_Pin,GPIO_PIN_RESET);
		HAL_GPIO_WritePin(DIG_RCLK_GPIO_Port,DIG_RCLK_Pin,GPIO_PIN_SET);	
	}
}

void ShowNum(uint8_t row, uint8_t column, uint8_t value)
{
	if(row == 1)
	{
		switch(column)
		{
			case 1:	//如果是第一排第一个
					SN74HC595_Send_Data(SN_DIG,0xFE);
					SN74HC595_Send_Data(SN_LED1,sgh_value[value]);//显示值对应16进制数
				break;
			case 2:
					SN74HC595_Send_Data(SN_DIG,0xFD);
					SN74HC595_Send_Data(SN_LED1,(sgh_value[value]|0x80));
				break;
			case 3:
					SN74HC595_Send_Data(SN_DIG,0xFB);
					SN74HC595_Send_Data(SN_LED1,sgh_value[value]);
				break;
			default:
				break;
		}
		SN74HC595_Send_Data(SN_LED1,0x00);	//消影，防止错位
	}
	else
	{
		switch(column)
		{
			case 1:
					SN74HC595_Send_Data(SN_DIG,0xF7);
					SN74HC595_Send_Data(SN_LED2,sgh_value[value]);
				break;
			case 2:
					SN74HC595_Send_Data(SN_DIG,0xEF);
					SN74HC595_Send_Data(SN_LED2,(sgh_value[value]|0x80));
				break;
			case 3:
					SN74HC595_Send_Data(SN_DIG,0xDF);
					SN74HC595_Send_Data(SN_LED2,sgh_value[value]);
				break;
			default:
				break;
		}
		SN74HC595_Send_Data(SN_LED2,0x00);
	}
}
/* USER CODE END 2 */

        gpio.h

#ifndef __GPIO_H__
#define __GPIO_H__

#ifdef __cplusplus
extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include "main.h"

/* USER CODE BEGIN Includes */

/* USER CODE END Includes */

/* USER CODE BEGIN Private defines */
#define SN_LED1 0x01
#define SN_LED2 0x02
#define SN_DIG  0x03
/* USER CODE END Private defines */

void MX_GPIO_Init(void);

/* USER CODE BEGIN Prototypes */
void SN74HC595_Send_Data(unsigned char sn_num,unsigned int sendValue);
void ShowNum(uint8_t row, uint8_t column, uint8_t value);
/* USER CODE END Prototypes */

#ifdef __cplusplus
}
#endif
#endif /*__ GPIO_H__ */

3.定时器 

定时器部分：

        tim.h

        这里是为了数码管的显示。

/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file    tim.c
  * @brief   This file provides code for the configuration
  *          of the TIM instances.
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2024 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 "tim.h"

/* USER CODE BEGIN 0 */

/* USER CODE END 0 */

TIM_HandleTypeDef htim3;

/* TIM3 init function */
void MX_TIM3_Init(void)
{

  /* USER CODE BEGIN TIM3_Init 0 */

  /* USER CODE END TIM3_Init 0 */

  TIM_ClockConfigTypeDef sClockSourceConfig = {0};
  TIM_SlaveConfigTypeDef sSlaveConfig = {0};
  TIM_MasterConfigTypeDef sMasterConfig = {0};
  TIM_OC_InitTypeDef sConfigOC = {0};

  /* USER CODE BEGIN TIM3_Init 1 */

  /* USER CODE END TIM3_Init 1 */
  htim3.Instance = TIM3;
  htim3.Init.Prescaler = 64-1;
  htim3.Init.CounterMode = TIM_COUNTERMODE_UP;
  htim3.Init.Period = 100-1;
  htim3.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
  htim3.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_ENABLE;
  if (HAL_TIM_Base_Init(&htim3) != HAL_OK)
  {
    Error_Handler();
  }
  sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
  if (HAL_TIM_ConfigClockSource(&htim3, &sClockSourceConfig) != HAL_OK)
  {
    Error_Handler();
  }
  if (HAL_TIM_OC_Init(&htim3) != HAL_OK)
  {
    Error_Handler();
  }
  sSlaveConfig.SlaveMode = TIM_SLAVEMODE_RESET;
  sSlaveConfig.InputTrigger = TIM_TS_ITR0;
  if (HAL_TIM_SlaveConfigSynchro(&htim3, &sSlaveConfig) != HAL_OK)
  {
    Error_Handler();
  }
  sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
  sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
  if (HAL_TIMEx_MasterConfigSynchronization(&htim3, &sMasterConfig) != HAL_OK)
  {
    Error_Handler();
  }
  sConfigOC.OCMode = TIM_OCMODE_TIMING;
  sConfigOC.Pulse = 0;
  sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
  sConfigOC.OCFastMode = TIM_OCFAST_DISABLE;
  if (HAL_TIM_OC_ConfigChannel(&htim3, &sConfigOC, TIM_CHANNEL_1) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN TIM3_Init 2 */

  /* USER CODE END TIM3_Init 2 */
  HAL_TIM_MspPostInit(&htim3);

}

void HAL_TIM_Base_MspInit(TIM_HandleTypeDef* tim_baseHandle)
{

  if(tim_baseHandle->Instance==TIM3)
  {
  /* USER CODE BEGIN TIM3_MspInit 0 */

  /* USER CODE END TIM3_MspInit 0 */
    /* TIM3 clock enable */
    __HAL_RCC_TIM3_CLK_ENABLE();

    /* TIM3 interrupt Init */
    HAL_NVIC_SetPriority(TIM3_IRQn, 0, 0);
    HAL_NVIC_EnableIRQ(TIM3_IRQn);
  /* USER CODE BEGIN TIM3_MspInit 1 */

  /* USER CODE END TIM3_MspInit 1 */
  }
}
void HAL_TIM_MspPostInit(TIM_HandleTypeDef* timHandle)
{

  GPIO_InitTypeDef GPIO_InitStruct = {0};
  if(timHandle->Instance==TIM3)
  {
  /* USER CODE BEGIN TIM3_MspPostInit 0 */

  /* USER CODE END TIM3_MspPostInit 0 */

    __HAL_RCC_GPIOB_CLK_ENABLE();
    /**TIM3 GPIO Configuration
    PB4     ------> TIM3_CH1
    */
    GPIO_InitStruct.Pin = GPIO_PIN_4;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
    GPIO_InitStruct.Alternate = GPIO_AF1_TIM3;
    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

  /* USER CODE BEGIN TIM3_MspPostInit 1 */

  /* USER CODE END TIM3_MspPostInit 1 */
  }

}

void HAL_TIM_Base_MspDeInit(TIM_HandleTypeDef* tim_baseHandle)
{

  if(tim_baseHandle->Instance==TIM3)
  {
  /* USER CODE BEGIN TIM3_MspDeInit 0 */

  /* USER CODE END TIM3_MspDeInit 0 */
    /* Peripheral clock disable */
    __HAL_RCC_TIM3_CLK_DISABLE();

    /* TIM3 interrupt Deinit */
    HAL_NVIC_DisableIRQ(TIM3_IRQn);
  /* USER CODE BEGIN TIM3_MspDeInit 1 */

  /* USER CODE END TIM3_MspDeInit 1 */
  }
}

/* USER CODE BEGIN 1 */

/* USER CODE END 1 */

        tim.h

#ifndef __TIM_H__
#define __TIM_H__

#ifdef __cplusplus
extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include "main.h"

/* USER CODE BEGIN Includes */

/* USER CODE END Includes */

extern TIM_HandleTypeDef htim3;

/* USER CODE BEGIN Private defines */

/* USER CODE END Private defines */

void MX_TIM3_Init(void);

void HAL_TIM_MspPostInit(TIM_HandleTypeDef *htim);

/* USER CODE BEGIN Prototypes */

/* USER CODE END Prototypes */

#ifdef __cplusplus
}
#endif

#endif /* __TIM_H__ */

4.主函数  

      main.h

/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2024 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 "tim.h"
#include "gpio.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */

/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
#define SHT40_Write (0x44<<1)   		//写入地址
#define SHT40_Read  ((0x44<<1)+1)   //读出地址
/* 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 */
  	uint16_t num = 0;
	uint8_t writeData[1] = {0xFD};
	uint8_t readData[6] = {0};
	uint16_t Temp = 0,Humi = 0;
	double Temperature = 0;
	double Humidity = 0;

void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim){
	if(htim == &htim3){
		num++;
		if(num < 100)
		{

    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */

			ShowNum(1,1,Temp/100);
			ShowNum(1,2,Temp/ 10 % 10);
			ShowNum(1,3,Temp%10);
	
		}
		else if(num < 200)
		{
			ShowNum(2,1,Humi/100);
			ShowNum(2,2,Humi/ 10 % 10);
			ShowNum(2,3,Humi%10);
		}
		else{
			num = 0;
			ShowNum(1,1,Temp/100);
			ShowNum(1,2,Temp/ 10 % 10);
			ShowNum(1,3,Temp%10);
		}

	}
}

/**
  * @brief  The application entry point.
  * @retval int
  */
  
int main(void)
{
  /* USER CODE BEGIN 1 */
//	uint16_t num = 0;
//	uint8_t writeData[1] = {0xFD};
//	uint8_t readData[6] = {0};
//	uint16_t Temp = 0,Humi = 0;
//	double Temperature = 0;
//	double Humidity = 0;
  /* 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 */
	HAL_DeInit();
  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_I2C1_Init();
  MX_TIM3_Init();
  HAL_TIM_Base_Start_IT(&htim3);
  /* USER CODE BEGIN 2 */
	HAL_TIM_PeriodElapsedCallback(&htim3);
	//使数码管全部熄灭
  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
	  SN74HC595_Send_Data(SN_DIG,0x00);
	  SN74HC595_Send_Data(SN_LED1,0x00);
      SN74HC595_Send_Data(SN_LED2,0x00);
	HAL_Delay(100);
	HAL_I2C_Master_Transmit(&hi2c1, (uint16_t)SHT40_Write, (uint8_t *)writeData, 1, HAL_MAX_DELAY);
		HAL_Delay(10);
	HAL_I2C_Master_Receive(&hi2c1, (uint16_t)SHT40_Read, (uint8_t *)readData, 6, HAL_MAX_DELAY);
	
	Temperature = (1.0 * 175 * (readData[0] * 256 + readData[1])) / 65535.0 - 45;
	Humidity = (1.0 * 125 * (readData[3] * 256 + readData[4])) / 65535.0 - 6.0;
	
	Temp = (uint16_t)(Temperature * 10);
	Humi = (uint16_t)(Humidity * 10);
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */

//		if(num < 100)
//		{
//			ShowNum(1,1,Temp/100);
//			ShowNum(1,2,Temp/ 10 % 10);
//			ShowNum(1,3,Temp%10);
//	
//		}
//		else if(num < 200)
//		{
//			ShowNum(2,1,Humi/100);
//			ShowNum(2,2,Humi/ 10 % 10);
//			ShowNum(2,3,Humi%10);
//		}
//		else{
//			num = 0;
//			ShowNum(1,1,Temp/100);
//			ShowNum(1,2,Temp/ 10 % 10);
//			ShowNum(1,3,Temp%10);
//		}

  }
  /* 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
  */
  HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1);

  /** 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.HSIDiv = RCC_HSI_DIV1;
  RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
  RCC_OscInitStruct.PLL.PLLM = RCC_PLLM_DIV1;
  RCC_OscInitStruct.PLL.PLLN = 8;
  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
  RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2;
  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_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != 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 */

5.实物验证

6.程序文件 

链接：https://pan.baidu.com/s/1ykD0cl5duxzqGEhDIVcoSg?pwd=1234 
提取码：1234

7.总结

        跟随立创EDA的教程，完成了本次训练营的任务，也学习了stm32cube的使用，对于陌生的芯片确实能够加快学习的速度。

望诸君前途似锦

标签：TIM3,CODE,HAL,检测仪,温湿度,TIM,嘉立,USER,GPIO
From： https://blog.csdn.net/m0_74245657/article/details/140500764

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