我是用hal库 和 stm32cubemax

在我坚持不懈和GITHUB的范例帮助下 1天半时间 总算解决所有BUG

#ifndef __I2C_HandleTypeDef_H
#define __I2C_HandleTypeDef_H

#include "stm32f1xx_hal.h"
extern I2C_HandleTypeDef hi2c1;
extern DMA_HandleTypeDef hdma_i2c1_tx;
extern  void MX_I2C1_Init(void);
#endif

/* 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"

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

/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
#include "ext1.h"
#include "u8g2.h"
#include "u8x8.h"
#include "oled.h"
#include <stdio.h>
#include <string.h>

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
I2C_HandleTypeDef hi2c1;
DMA_HandleTypeDef hdma_i2c1_tx;

TIM_HandleTypeDef htim2;

void OLEDdisplay(int CountSensor_Count) {
    u8g2_ClearBuffer(&u8g2);
    uint8_t aTxBuffer[10] = "address\r\n";
    sprintf((char*) aTxBuffer, "count %d \n", CountSensor_Count);

    u8g2_DrawUTF8(&u8g2, 10, 14, aTxBuffer);

    u8g2_SendBuffer(&u8g2);

}
/* USER CODE END PD */

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

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/
I2C_HandleTypeDef hi2c1;
DMA_HandleTypeDef hdma_i2c1_tx;

TIM_HandleTypeDef htim3;

/* USER CODE BEGIN PV */

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_DMA_Init(void);

static void MX_TIM3_Init(void);
/* USER CODE BEGIN PFP */

void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
    /* Prevent unused argument(s) compilation warning */
    int Direction = __HAL_TIM_IS_TIM_COUNTING_DOWN(&htim2);
    OLEDdisplay(Direction);

    /* NOTE : This function should not be modified, when the callback is needed,
              the HAL_TIM_PeriodElapsedCallback could be implemented in the user file
     */
}
/* 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_DMA_Init();
    MX_I2C1_Init();
    MX_TIM3_Init();
    /* USER CODE BEGIN 2 */
    OLED_Init();
    u8g2_ClearBuffer(&u8g2);
    u8g2_SetFont(&u8g2, u8g2_font_8x13_tf); // u8g2_font_wqy16_t_chinese1
    uint8_t Tx_str1[] = "Scanning I2C bus:\r\n";


    HAL_Delay(20);

    u8g2_DrawUTF8(&u8g2, 10, 14, "HelloWorld");
    u8g2_DrawUTF8(&u8g2, 10, 50, "Perseverance");
    u8g2_SendBuffer(&u8g2);
    HAL_Delay(1000);
    u8g2_ClearBuffer(&u8g2);
    u8g2_DrawCircle(&u8g2, 20, 25, 10, U8G2_DRAW_ALL);
    u8g2_SendBuffer(&u8g2);
    HAL_Delay(1000);
    u8g2_ClearBuffer(&u8g2);

    int16_t i;
    int16_t width = 128;
    int16_t height = 64;

    for (i = 0; i < width; i += 4) {
        u8g2_DrawLine(&u8g2, 0, 0, i, height - 1);
        u8g2_SendBuffer(&u8g2);
        HAL_Delay(1);
    }

    HAL_Delay(1000);

    width = 128;
    height = 64;
    for (i = 0; i < height; i += 4) {
        u8g2_DrawLine(&u8g2, 0, 0, width - 1, i);
        u8g2_SendBuffer(&u8g2);
        HAL_Delay(1);
    }
    HAL_Delay(1000);
    __HAL_TIM_CLEAR_IT(&htim3,TIM_IT_UPDATE);
    HAL_TIM_Encoder_Start(&htim3,TIM_CHANNEL_ALL );
    __HAL_TIM_ENABLE_IT(&htim3,TIM_IT_UPDATE);
    /* USER CODE END 2 */

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

        HAL_GPIO_TogglePin(GPIOA, GPIO_PIN_0);
        HAL_Delay(500);
        int val= __HAL_TIM_GET_COUNTER(&htim3) / 2;
        OLEDdisplay(val);
        /* 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};

    /** 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();
    }
}

/**
  * @brief I2C1 Initialization Function
  * @param None
  * @retval None
  */
void MX_I2C1_Init(void)
{

    /* USER CODE BEGIN I2C1_Init 0 */

    /* USER CODE END I2C1_Init 0 */

    /* USER CODE BEGIN I2C1_Init 1 */

    /* USER CODE END I2C1_Init 1 */
    hi2c1.Instance = I2C1;
    hi2c1.Init.ClockSpeed = 400000;
    hi2c1.Init.DutyCycle = I2C_DUTYCYCLE_2;
    hi2c1.Init.OwnAddress1 = 0;
    hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
    hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
    hi2c1.Init.OwnAddress2 = 0;
    hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
    hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
    if (HAL_I2C_Init(&hi2c1) != HAL_OK)
    {
        Error_Handler();
    }
    /* USER CODE BEGIN I2C1_Init 2 */

    /* USER CODE END I2C1_Init 2 */

}

/**
  * @brief TIM3 Initialization Function
  * @param None
  * @retval None
  */
static void MX_TIM3_Init(void)
{

    /* USER CODE BEGIN TIM3_Init 0 */

    /* USER CODE END TIM3_Init 0 */

    TIM_Encoder_InitTypeDef sConfig = {0};
    TIM_MasterConfigTypeDef sMasterConfig = {0};

    /* USER CODE BEGIN TIM3_Init 1 */

    /* USER CODE END TIM3_Init 1 */
    htim3.Instance = TIM3;
    htim3.Init.Prescaler = 0;
    htim3.Init.CounterMode = TIM_COUNTERMODE_UP;
    htim3.Init.Period = 65535;
    htim3.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
    htim3.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_ENABLE;
    sConfig.EncoderMode = TIM_ENCODERMODE_TI1;
    sConfig.IC1Polarity = TIM_ICPOLARITY_RISING;
    sConfig.IC1Selection = TIM_ICSELECTION_DIRECTTI;
    sConfig.IC1Prescaler = TIM_ICPSC_DIV1;
    sConfig.IC1Filter = 6;
    sConfig.IC2Polarity = TIM_ICPOLARITY_RISING;
    sConfig.IC2Selection = TIM_ICSELECTION_DIRECTTI;
    sConfig.IC2Prescaler = TIM_ICPSC_DIV1;
    sConfig.IC2Filter = 6;
    if (HAL_TIM_Encoder_Init(&htim3, &sConfig) != HAL_OK)
    {
        Error_Handler();
    }
    sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
    sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
    if (HAL_TIMEx_MasterConfigSynchronization(&htim3, &sMasterConfig) != HAL_OK)
    {
        Error_Handler();
    }
    /* USER CODE BEGIN TIM3_Init 2 */

    /* USER CODE END TIM3_Init 2 */

}

/**
  * Enable DMA controller clock
  */
static void MX_DMA_Init(void)
{

    /* DMA controller clock enable */
    __HAL_RCC_DMA1_CLK_ENABLE();

    /* DMA interrupt init */
    /* DMA1_Channel6_IRQn interrupt configuration */
    HAL_NVIC_SetPriority(DMA1_Channel6_IRQn, 0, 0);
    HAL_NVIC_EnableIRQ(DMA1_Channel6_IRQn);

}

/**
  * @brief GPIO Initialization Function
  * @param None
  * @retval None
  */
static void MX_GPIO_Init(void)
{
    GPIO_InitTypeDef GPIO_InitStruct = {0};
    /* USER CODE BEGIN MX_GPIO_Init_1 */
    /* USER CODE END MX_GPIO_Init_1 */

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

    /*Configure GPIO pin Output Level */
    HAL_GPIO_WritePin(GPIOA, GPIO_PIN_0, GPIO_PIN_RESET);

    /*Configure GPIO pin : PA0 */
    GPIO_InitStruct.Pin = GPIO_PIN_0;
    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

    /* USER CODE BEGIN MX_GPIO_Init_2 */
    /* USER CODE END MX_GPIO_Init_2 */
}

/* 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 */