第十届蓝桥杯嵌入式国赛(STM32G4及HAL库)

Posted ORI2333

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前言

本程序基于STM32G431RB开发,使用工具为STM32CubeMX + Keil MDK 5 + HAL库。

题目说明

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实现程序

为了方便提交,或者说不容易遗漏,本工程将绝大部分实现代码写在main.c文件中.

/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2021 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under BSD 3-Clause license,
  * the "License"; You may not use this file except in compliance with the
  * License. You may obtain a copy of the License at:
  *                        opensource.org/licenses/BSD-3-Clause
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"

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

#include "stdio.h"
#include "string.h"
#include "ds18b20.h"
#include "i2c - hal.h"
/* USER CODE END Includes */

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

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
#define RCLK_PIN	GPIO_PIN_2
#define SER_PIN		GPIO_PIN_1
#define SCK_PIN		GPIO_PIN_3

#define RCLK_H	HAL_GPIO_WritePin(GPIOA, RCLK_PIN, GPIO_PIN_SET)
#define RCLK_L	HAL_GPIO_WritePin(GPIOA, RCLK_PIN, GPIO_PIN_RESET)

#define SER_H		HAL_GPIO_WritePin(GPIOA, SER_PIN, GPIO_PIN_SET)
#define SER_L		HAL_GPIO_WritePin(GPIOA, SER_PIN, GPIO_PIN_RESET)

#define SCK_H		HAL_GPIO_WritePin(GPIOA, SCK_PIN, GPIO_PIN_SET)
#define SCK_L		HAL_GPIO_WritePin(GPIOA, SCK_PIN, GPIO_PIN_RESET)


/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/
ADC_HandleTypeDef hadc2;

TIM_HandleTypeDef htim3;
TIM_HandleTypeDef htim4;

UART_HandleTypeDef huart1;

/* USER CODE BEGIN PV */
char Text_buff[30]; //显示用
double AO1_Val = 0;	//AO1电压值
double AO2_Val = 0;
uint8_t PWM2_zkb = 0;
double Temp_Val = 0;
uint16_t G_num = 0;

uint8_t Key1_Flag = 0;
uint8_t Key2_Flag = 0;
uint8_t Key3_Flag = 0;
uint8_t Key4_Flag = 0;

uint16_t IC3ReadValue1 = 0, IC3ReadValue2 = 0;
uint16_t CaptureNumber = 0;

uint32_t TIM3Freq = 0;
double TIM3Duty = 0;

uint32_t Capture_High = 0;
uint32_t Capture_Low = 0;

uint8_t Temp_Para = 30;
uint8_t X_Para = 0;

uint32_t Time = 0;
uint8_t mode = 0;

uc8 Seg7[17] = { 0x3f, 0x06, 0x5b, 0x4f, 0x66, 0x6d, 0x7d, 0x07, 0x7f,
							0x6f, 0x77, 0x7c, 0x39, 0x5e, 0x79, 0x71, 0x00};
uint8_t SEG_Flag = 0;
							
uint16_t ch = 0;

char rxbuff[30];
char RxBuff[30];
							
uint8_t Print_Flag = 0;

uint8_t N_Flag = 0;
							
uint8_t LED_8_Flag = 0;
/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_ADC2_Init(void);
static void MX_TIM3_Init(void);
static void MX_TIM4_Init(void);
static void MX_USART1_UART_Init(void);
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */

//获取ADC
double GetADC(uint32_t ch)
{
	ADC_ChannelConfTypeDef sConfig = {0};
	
	sConfig.Channel = ch;
  sConfig.Rank = ADC_REGULAR_RANK_1;
  sConfig.SamplingTime = ADC_SAMPLETIME_247CYCLES_5;
  sConfig.SingleDiff = ADC_SINGLE_ENDED;
  sConfig.OffsetNumber = ADC_OFFSET_NONE;
  sConfig.Offset = 0;
  if (HAL_ADC_ConfigChannel(&hadc2, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }
	HAL_ADC_Start(&hadc2);
	
	HAL_ADC_PollForConversion(&hadc2,10);
	
	uint16_t adc = HAL_ADC_GetValue(&hadc2);
	
	return (adc*3.3/4096);
	
}

均值滤波
//u16 ADC_Average(u32 ch, u8 times)
//{
//	u32 temp_val = 0;
//	u8 t;
//	for(t = 0; t < times; t++){
//		temp_val += GetADC(ch);
//		HAL_Delay(5);
//	}
//	
//	return temp_val/times;
//	
//}


void HAL_TIM_IC_CaptureCallback(TIM_HandleTypeDef *htim)
{
	if(htim -> Instance == TIM3)
	{
		if(htim->Channel == HAL_TIM_ACTIVE_CHANNEL_2)
		{
			if(CaptureNumber == 0)
			{
				IC3ReadValue1 = TIM3->CCR2;
				CaptureNumber = 1;
				__HAL_TIM_SET_CAPTUREPOLARITY(htim,TIM_CHANNEL_2,TIM_INPUTCHANNELPOLARITY_FALLING);
			}
			else if(CaptureNumber == 1)
			{
				IC3ReadValue2 = TIM3->CCR2;
				CaptureNumber = 2;
				__HAL_TIM_SET_CAPTUREPOLARITY(htim,TIM_CHANNEL_2,TIM_INPUTCHANNELPOLARITY_RISING);
				if (IC3ReadValue2 > IC3ReadValue1)
				{
					Capture_High = (IC3ReadValue2 - IC3ReadValue1); 
				}
				else
				{
					Capture_High = ((0xFFFF - IC3ReadValue1) + IC3ReadValue2); 
				}
				IC3ReadValue1 = IC3ReadValue2;
			}
			else if(CaptureNumber == 2)
			{
				IC3ReadValue2 = TIM3->CCR2;
				CaptureNumber = 0;
				if (IC3ReadValue2 > IC3ReadValue1)
				{
					Capture_Low = (IC3ReadValue2 - IC3ReadValue1); 
				}
				else
				{
					Capture_Low = ((0xFFFF - IC3ReadValue1) + IC3ReadValue2); 
				}
				TIM3Freq = (uint32_t) 1000000 / (Capture_Low + Capture_High);
				TIM3Duty = Capture_High * 1.0 / (Capture_Low + Capture_High);
			}
		}
	}
}


double GetTemp()
{
	u16 read = (ds18b20_read() & 0x07FF);
	
	return (read/16.);
	
}



//主界面
void MainDisplay()
{
	
	//赋值
	AO1_Val = GetADC(ADC_CHANNEL_17);
	AO2_Val = GetADC(ADC_CHANNEL_13);
	PWM2_zkb = 	TIM3Duty * 100 ;
	Temp_Val = GetTemp();
	
	
	//显示部分
	LCD_DisplayStringLine(Line1,(uint8_t *)"        Main    ");
	
	sprintf(Text_buff," AO1:%.2f V           ",AO1_Val);
	LCD_DisplayStringLine(Line2,(uint8_t *)Text_buff);
	
	sprintf(Text_buff," AO2:%.2f V          ",AO2_Val);
	LCD_DisplayStringLine(Line3,(uint8_t *)Text_buff);
	
	sprintf(Text_buff," PWM2:%d %% ",PWM2_zkb);
	LCD_DisplayStringLine(Line4,(uint8_t *)Text_buff);
	
	sprintf(Text_buff," Temp:%.2f 'C ",Temp_Val);
	LCD_DisplayStringLine(Line5,(uint8_t *)Text_buff);
	
	sprintf(Text_buff," N:%d  ",G_num);
	LCD_DisplayStringLine(Line7,(uint8_t *)Text_buff);
	
}

//参数配置界面
void ParaDisply()
{
	LCD_DisplayStringLine(Line1,(uint8_t *)"        Para    ");
	
	
	sprintf(Text_buff," T:%d               ",Temp_Para);
	if(Key2_Flag == 1){
	LCD_SetBackColor(Yellow);
	LCD_DisplayStringLine(Line2,(uint8_t *)Text_buff);
	LCD_SetBackColor(Blue);
	}else{
	LCD_DisplayStringLine(Line2,(uint8_t *)Text_buff);
	}
	
	sprintf(Text_buff," X:AO%d             ",X_Para+1);
	
	if(Key2_Flag == 2){
	LCD_SetBackColor(Yellow);
	LCD_DisplayStringLine(Line3,(uint8_t *)Text_buff);
	LCD_SetBackColor(Blue);
	}else{
	LCD_DisplayStringLine(Line3,(uint8_t *)Text_buff);
	}

	LCD_DisplayStringLine(Line4,(uint8_t *)"                       ");
	LCD_DisplayStringLine(Line5,(uint8_t *)"                       ");
	LCD_DisplayStringLine(Line7,(uint8_t *)"                       ");
	
}

//定时1ms
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
	static uint16_t TIM4_Cnt1 = 0;
	static uint16_t SEG_Cnt1 = 0;
	static uint16_t Print_Cnt1 = 0;
	static uint16_t LED_Cnt1 = 0;
	
	if(htim->Instance == TIM4){
		TIM4_Cnt1++;
		
		if(TIM4_Cnt1 >= 100){
			TIM4_Cnt1 = 0;
			SEG_Cnt1++;
			Print_Cnt1++;
			LED_Cnt1++;
			
			
			if(LED_Cnt1 >= 8){
				LED_Cnt1 = 0;
				LED_8_Flag = !LED_8_Flag;
			}
			
			if(Print_Cnt1 >= 10){
				Print_Cnt1 = 0;
				Print_Flag = 1;
			}
			
			if(SEG_Cnt1 >= 20){
				SEG_Cnt1 = 0;
				SEG_Flag = !SEG_Flag;
			}
			
			Time++;
		}	
	}
}

void KeyScan(){
	static u8 key_up=1;     //按键松开标志
	static u8 key_ups=1; 
	
	
	if(key_ups && (HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_0) == RESET
								|| HAL_GPIO_ReadPin(GPIOB, GPIO_PIN_2) == RESET )){
		Time = 0;	
		key_ups = 0;
		N_Flag = 1;
			
									
	}else if(HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_0) == SET
								&& HAL_GPIO_ReadPin(GPIOB, GPIO_PIN_2) == SET){
		key_ups = 1;
		
	}
								
		
		if(Time >= 8) mode = 1;
		else mode = 0;			
		
		if(Time > 5000) Time = 0;
	
	if(mode == 1) key_up = 1;
	
	if(key_up && (HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_0) == RESET
								|| HAL_GPIO_ReadPin(GPIOB, GPIO_PIN_2) == RESET)){
		key_up = 0;
		
									
	if(HAL_GPIO_ReadPin(GPIOB, GPIO_PIN_2) == RESET){
			
		
			if(Key2_Flag == 1){
				Temp_Para++;
				if(Temp_Para > 40){
					Temp_Para = 40;
				}
			}
			
			if(Key2_Flag == 2){
				X_Para = !X_Para;
			}
			
		}
	
		if(HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_0) == RESET){
			if(Key2_Flag == 1){
				Temp_Para--;
				if(Temp_Para < 20){
					Temp_Para = 20;
				}
			}
			if(Key2_Flag == 2){
				X_Para = !X_Para;
			}
			
		}
		
	}
	else if(HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_0) == SET
								&& HAL_GPIO_ReadPin(GPIOB, GPIO_PIN_2) == SET){
		key_up = 1;
		
	}
	
	}

void SEG_Display(u8 Bit1, u8 Bit2, u8 Bit3)
{
	u8 i = 0;
	u8 code_tmp = 0;
	RCLK_L;
	
	code_tmp = Seg7[Bit3];
	for(i = 0; i < 8; i++){
		SCK_L;
		if(code_tmp & 0x80){
			SER_H;
		}
		else{
			SER_L;
		}
		code_tmp = code_tmp << 1;
		SCK_L;
		SCK_H;
		
	}
	
	code_tmp = Seg7[Bit2];
	for(i = 0; i < 8; i++){
		SCK_L;
		if(code_tmp & 0x80){
			SER_H;
		}
		else{
			SER_L;
		}
		code_tmp = code_tmp << 1;
		SCK_L;
		SCK_H;
		
	}
	
	code_tmp = Seg7[Bit1];
	for(i = 0; i < 8; i++){
		SCK_L;
		if(code_tmp & 0x80){
			SER_H;
		}
		else{
			SER_L;
		}
		code_tmp = code_tmp << 1;
		SCK_L;
		SCK_H;
		
	}
	
	RCLK_L;
	RCLK_H;
	
}

void SEG()
{
	
	if(SEG_Flag == 0){
	u8 SEG_temp_1 = Temp_Para/10;
	u8 SEG_temp_2 = Temp_Para%10;
	SEG_Display(12, SEG_temp_1, SEG_temp_2);
	}
	else{
		
	SEG_Display(10, 0, X_Para+1);
	}
}

void My_Printf()
{
		if(X_Para == 0 && (AO1_Val > (TIM3Duty * 3.3)) ){
			
				HAL_GPIO_WritePin(GPIOC, GPIO_PIN_13 | GPIO_PIN_14 | GPIO_PIN_15
										| GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_12, GPIO_PIN_SET);
			HAL_GPIO_WritePin(GPIOC, GPIO_PIN_8, GPIO_PIN_RESET);
			HAL_GPIO_WritePin(GPIOD, GPIO_PIN_2, GPIO_PIN_SET);
			HAL_GPIO_WritePin(GPIOD, GPIO_PIN_2, GPIO_PIN_RESET);
			
			if(Print_Flag == 1){
			printf("$%.2f\\r\\n",Temp_Val);
			Print_Flag = 0;
			}
		}
			if(X_Para == 1 && (AO2_Val > (TIM3Duty * 3.3))){
				
				HAL_GPIO_WritePin(GPIOC, GPIO_PIN_13 | GPIO_PIN_14 | GPIO_PIN_15
										| GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_12, GPIO_PIN_SET);
			HAL_GPIO_WritePin(GPIOC, GPIO_PIN_8, GPIO_PIN_RESET);
			HAL_GPIO_WritePin(GPIOD, GPIO_PIN_2, GPIO_PIN_SET);
			HAL_GPIO_WritePin(GPIOD, GPIO_PIN_2, GPIO_PIN_RESET);
				
			第十届蓝桥杯嵌入式国赛(STM32G4及HAL库)

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