前言

无

一、题目

二、模块初始化

1.LCD这里不用配置，直接使用提供的资源包就行
2.ADC:开启ADCsingle-ended
3.LED:开启PC8-15,PD2输出模式就行了。
4.定时器:TIM3(按键消抖定时器):PSC:80-1,ARR:10000-1，TIM17(比较输出定时器):PSC:80,ARR:65535
5.i2c:设置PB6,PB7为GPIO_Output模式即可

三、代码实现

bsp组中共有:

interrupt.h:

#ifndef __INTERRUPT_H__
#define __INTERRUPT_H__

#include "main.h"
#include "stdbool.h"

struct keys
{
	bool key_sta;
	unsigned char key_judge;
	bool single_flag;
	unsigned int key_time;
	bool long_flag;
};

#endif

interrupt.c:

#include "interrupt.h"

struct keys key[4] = {0, 0, 0, 0, 0};

void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef * htim)
{
	if(htim->Instance == TIM3)
	{
		key[0].key_sta = HAL_GPIO_ReadPin(GPIOB, GPIO_PIN_0);
		key[1].key_sta = HAL_GPIO_ReadPin(GPIOB, GPIO_PIN_1);
		key[2].key_sta = HAL_GPIO_ReadPin(GPIOB, GPIO_PIN_2);
		key[3].key_sta = HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_0);
		for(unsigned char i = 0; i < 4; i++)
		{
			switch(key[i].key_judge)
			{
				case 0:
				{
					if(key[i].key_sta == 0)
					{
						key[i].key_judge = 1;
						key[i].key_time = 0;
					}
					break;
				}
				case 1:
				{
					if(key[i].key_sta == 0)
					{
						key[i].key_judge = 2;
					}
					else
					{
						key[i].key_judge = 0;
					}
					break;
				}
				case 2:
				{
					if(key[i].key_sta == 1)
					{
						key[i].key_judge = 0;
						if(key[i].key_time < 80)
						{
							key[i].single_flag = 1;
						}
					}
					else
					{
						key[i].key_time++;
						if(key[i].key_time >= 80)
						{
							key[i].long_flag = 1;
						}
					}
					break;
				}
			}
		}
	}
}

unsigned int Period = 0;
unsigned int HighTime = 0;
unsigned char OC1_Duty = 75;
unsigned char OC2_Duty = 60;
unsigned short OC1_Pulse = 4000;
unsigned short OC2_Pulse = 1000;


void HAL_TIM_OC_DelayElapsedCallback(TIM_HandleTypeDef *htim)
{
	if(htim->Instance == TIM15)
	{
		unsigned short CapVal = 0;
		if(htim->Channel == HAL_TIM_ACTIVE_CHANNEL_1)
		{
			CapVal = __HAL_TIM_GetCompare(htim, TIM_CHANNEL_1);
			if(HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_2) == GPIO_PIN_RESET)
			{
				__HAL_TIM_SET_COMPARE(htim, TIM_CHANNEL_1, CapVal + OC1_Pulse - OC1_Duty / 100.0 * OC1_Pulse);
			}
			else
			{
				__HAL_TIM_SET_COMPARE(htim, TIM_CHANNEL_1, CapVal + OC1_Duty / 100.0 * OC1_Pulse);
			}
				
		}
	}
}

main.h:

/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.h
  * @brief          : Header for main.c file.
  *                   This file contains the common defines of the application.
  ******************************************************************************
  * @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 */

/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __MAIN_H
#define __MAIN_H

#ifdef __cplusplus
extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include "stm32g4xx_hal.h"

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

/* USER CODE END Includes */

/* Exported types ------------------------------------------------------------*/
/* USER CODE BEGIN ET */

/* USER CODE END ET */

/* Exported constants --------------------------------------------------------*/
/* USER CODE BEGIN EC */

/* USER CODE END EC */

/* Exported macro ------------------------------------------------------------*/
/* USER CODE BEGIN EM */

/* USER CODE END EM */

/* Exported functions prototypes ---------------------------------------------*/
void Error_Handler(void);

/* USER CODE BEGIN EFP */

/* USER CODE END EFP */

/* Private defines -----------------------------------------------------------*/

/* USER CODE BEGIN Private defines */
#define PARA 0
#define SETTING 1
#define STOP 0
#define START 1
/* USER CODE END Private defines */

#ifdef __cplusplus
}
#endif

#endif /* __MAIN_H */

main.c:

/* 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 "tim.h"
#include "gpio.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "interrupt.h"
#include "lcd.h"
#include "stdio.h"
#include "badc.h"
#include "i2c.h"
#include "led.h"
/* 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 */
extern struct keys key[4];
unsigned int adc2;
char text[30];
unsigned char eeprom_readData;
unsigned char eeprom_writeData;
unsigned char DisplayMode;
unsigned char outMode;
extern unsigned char OC1_Duty;
extern unsigned short OC1_Pulse;
unsigned int nowFre = 1000;
/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */
void DisposeKey(void);
void LCD_Disp(void);
/* 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_ADC2_Init();
  MX_TIM3_Init();
  MX_TIM15_Init();
  /* USER CODE BEGIN 2 */
	LCD_Init();
	LCD_Clear(Black);
	LCD_SetBackColor(Black);
	LCD_SetTextColor(White);
	adc2 = getADC(&hadc2);
	HAL_Delay(2);
	adc2 = getADC(&hadc2);
	OC1_Duty = adc2 / 4096.0 * 100;
	nowFre = eeprom_read(0) * 1000;
	OC1_Pulse = 1000000 / nowFre;
	HAL_TIM_Base_Start_IT(&htim3);
//	HAL_TIM_OC_Start_IT(&htim15, TIM_CHANNEL_1);
//	HAL_TIM_OC_Start_IT(&htim15, TIM_CHANNEL_2);
	LED_Disp(0x00);
  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
		adc2 = getADC(&hadc2);
		OC1_Duty = adc2 / 4096.0 * 100;
		DisposeKey();
		LCD_Disp();
		if(outMode == START)
			LED_Disp(0x01);
		else
			LED_Disp(0x00);
  }
  /* 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_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLM = RCC_PLLM_DIV3;
  RCC_OscInitStruct.PLL.PLLN = 20;
  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
  RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_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_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
  {
    Error_Handler();
  }
}

/* USER CODE BEGIN 4 */
void DisposeKey(void)
{
	if(key[0].single_flag)
	{
		outMode = !outMode;
		if(outMode == START)
		{
			HAL_TIM_OC_Start_IT(&htim15, TIM_CHANNEL_1);
		}
		else
		{
			HAL_TIM_OC_Stop_IT(&htim15, TIM_CHANNEL_1);
		}
		key[0].single_flag = 0;
	}
	if(key[1].single_flag)
	{
		DisplayMode = !DisplayMode;
		LCD_Clear(Black);
		if(DisplayMode == PARA)
		{
			eeprom_write(0, nowFre / 1000);
		}
		else
		{
			;
		}
		key[1].single_flag = 0;
	}
	if(key[2].single_flag)
	{
		if(DisplayMode == SETTING)
		{
			nowFre += 1000;
			if(nowFre == 11000)
				nowFre = 1000;
			OC1_Pulse = 1000000 / nowFre;
		}
		key[2].single_flag = 0;
	}
}

void LCD_Disp(void)
{
	if(DisplayMode == PARA)
	{
		LCD_DisplayStringLine(Line1, "        PARA");
		sprintf(text, "volt:%.2fV", adc2 * 3.3 / 4096);
		LCD_DisplayStringLine(Line2, text);
		if(outMode == STOP)
			sprintf(text, "outMode:Stop ");
		else
			sprintf(text, "outMode:Start");
		LCD_DisplayStringLine(Line3, text);
		sprintf(text, "Para:PA2:%d%% ", OC1_Duty);
		LCD_DisplayStringLine(Line4, text);
		sprintf(text, "     PB*:%d%% ", 100 - OC1_Duty);
		LCD_DisplayStringLine(Line5, text);
		sprintf(text, "     Frequency:%dKhz ", nowFre / 1000);
		LCD_DisplayStringLine(Line6, text);
	}
	else if(DisplayMode == SETTING)
	{
		LCD_DisplayStringLine(Line1, "       SETTING");
		sprintf(text, "  Frequency:%dKHz ", nowFre / 1000);
		LCD_DisplayStringLine(Line3, text);
	}
}
/* 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 */

四、完成效果

五、总结

反相输出两个引脚在GA31上没有同时引出来，就用PA2输出比较模式凑合了，本篇文章只是为了存放我的代码，所以看不懂很正常，如果需要代码可以找我私信。