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开箱测评NUCLEO-F722ZET6 菜鸟上手日记 Part3 [复制链接]

<div class='showpostmsg'># 开箱测评NUCLEO-F722ZET6 菜鸟上手日记 Part3

按照上个帖子的继续，原本是打算用Arduino来编写项目的代码的，奈何玩的不6，感觉外设能调的参数太少了，又懒得自己在写一遍驱动，遂又投奔了Keil5和CubeMX的怀抱。。。。。。捣鼓了一段时间终于弄好了无刷电机的驱动，太菜了。。。。。

# CubeMX配置

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<img style="cursor:pointer;" id="aimg_734838" aid="734838" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202309/23/195648mg0pgdm73ng86qr6.png" file="data/attachment/forum/202309/23/195648mg0pgdm73ng86qr6.png.thumb.jpg" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" />

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<p class="xg1 y">2023-9-23 19:56 上传</p>

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首先配置RCC，调整为外部晶振

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<img style="cursor:pointer;" id="aimg_734839" aid="734839" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202309/23/195649binyouyctzmuucpc.png" file="data/attachment/forum/202309/23/195649binyouyctzmuucpc.png.thumb.jpg" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" />

<div class="tip tip_4 aimg_tip" id="aimg_734839_menu" style="position: absolute; display: none" disautofocus="true">
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配置Tim2作为PWM的输出，这里选用了CH3作为输出口，接的是PB10口

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<img style="cursor:pointer;" id="aimg_734840" aid="734840" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202309/23/195649ucvuvdavsvxdiaa9.png" file="data/attachment/forum/202309/23/195649ucvuvdavsvxdiaa9.png.thumb.jpg" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" />

<div class="tip tip_4 aimg_tip" id="aimg_734840_menu" style="position: absolute; display: none" disautofocus="true">
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<p><strong>tim2.png</strong> <em class="xg1">(70.51 KB, 下载次数: 0)</em></p>
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<p class="xg1 y">2023-9-23 19:56 上传</p>

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由于计时器的是中原位108MHz，这里ARR设为19999，也就是20000，PSC为99，也就是100，预分频为4，打开自动预重装，PWM模式为PWM1,Plus先给个0，后面进软件后再调整。

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<img style="cursor:pointer;" id="aimg_734837" aid="734837" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202309/23/195648nrrox9fnmfj5ybnm.png" file="data/attachment/forum/202309/23/195648nrrox9fnmfj5ybnm.png.thumb.jpg" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" />

<div class="tip tip_4 aimg_tip" id="aimg_734837_menu" style="position: absolute; display: none" disautofocus="true">
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<img style="cursor:pointer;" id="aimg_734836" aid="734836" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202309/23/195648vkkwlko66l4owke9.png" file="data/attachment/forum/202309/23/195648vkkwlko66l4owke9.png.thumb.jpg" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" />

<div class="tip tip_4 aimg_tip" id="aimg_734836_menu" style="position: absolute; display: none" disautofocus="true">
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<p><strong>I2C1.png</strong> <em class="xg1">(31.39 KB, 下载次数: 0)</em></p>
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再打开一个I2C接口用来驱动oled屏幕，配置就不细说了，基本默认就好

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<img style="cursor:pointer;" id="aimg_734835" aid="734835" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202309/23/195647ejjkqchyfi6djkfh.png" file="data/attachment/forum/202309/23/195647ejjkqchyfi6djkfh.png.thumb.jpg" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" />

<div class="tip tip_4 aimg_tip" id="aimg_734835_menu" style="position: absolute; display: none" disautofocus="true">
<div class="xs0">
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<p>
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再打开一个ADC用来采集旋钮电位器的数值来控制电机的速度
以上就是CubeMX里面的配置了，然后生成代码
# 代码编写
####  I2C代码 
```html
#include "i2c.h"

I2C_HandleTypeDef hi2c1;

/* I2C1 init function */
void MX_I2C1_Init(void)
{
  hi2c1.Instance = I2C1;
  hi2c1.Init.Timing = 0x20404768;
  hi2c1.Init.OwnAddress1 = 0;
  hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
  hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
  hi2c1.Init.OwnAddress2 = 0;
  hi2c1.Init.OwnAddress2Masks = I2C_OA2_NOMASK;
  hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
  hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
  if (HAL_I2C_Init(&hi2c1) != HAL_OK)
  {
    Error_Handler();
  }
  /** Configure Analogue filter*/
  if (HAL_I2CEx_ConfigAnalogFilter(&hi2c1, I2C_ANALOGFILTER_ENABLE) != HAL_OK)
  {
    Error_Handler();
  }
  /** Configure Digital filter*/
  if (HAL_I2CEx_ConfigDigitalFilter(&hi2c1, 0) != HAL_OK)
  {
    Error_Handler();
  }
}

void HAL_I2C_MspInit(I2C_HandleTypeDef* i2cHandle)
{
  GPIO_InitTypeDef GPIO_InitStruct = {0};
  RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};
  if(i2cHandle->Instance==I2C1)
  {
  	/** Initializes the peripherals clock*/
    PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_I2C1;
    PeriphClkInitStruct.I2c1ClockSelection = RCC_I2C1CLKSOURCE_PCLK1;
    if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
    {
      Error_Handler();
    }
    __HAL_RCC_GPIOB_CLK_ENABLE();
    /**I2C1 GPIO Configuration
    PB8     ------> I2C1_SCL
    PB9     ------> I2C1_SDA*/
    GPIO_InitStruct.Pin = GPIO_PIN_8|GPIO_PIN_9;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF4_I2C1;
    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
    /* I2C1 clock enable */
    __HAL_RCC_I2C1_CLK_ENABLE();
  }
}

void HAL_I2C_MspDeInit(I2C_HandleTypeDef* i2cHandle)
{
  if(i2cHandle->Instance==I2C1)
  {
    /* Peripheral clock disable */
    __HAL_RCC_I2C1_CLK_DISABLE();
    /**I2C1 GPIO Configuration
    PB8     ------> I2C1_SCL
    PB9     ------> I2C1_SDA*/
    HAL_GPIO_DeInit(GPIOB, GPIO_PIN_8);
    HAL_GPIO_DeInit(GPIOB, GPIO_PIN_9);
  }
}
```
####  ADC代码
```html
#include "adc.h"
/* USER CODE BEGIN 0 */
#include "stm32f7xx_hal.h"
/* USER CODE END 0 */
ADC_HandleTypeDef hadc1;
/* ADC1 init function */
void MX_ADC1_Init(void)
{
  ADC_ChannelConfTypeDef sConfig = {0};
  /** Configure the global features of the ADC (Clock, Resolution, Data Alignment and number of conversion)*/
  hadc1.Instance = ADC1;
  hadc1.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV4;
  hadc1.Init.Resolution = ADC_RESOLUTION_12B;
  hadc1.Init.ScanConvMode = ADC_SCAN_DISABLE;
  hadc1.Init.ContinuousConvMode = DISABLE;
  hadc1.Init.DiscontinuousConvMode = DISABLE;
  hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
  hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START;
  hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
  hadc1.Init.NbrOfConversion = 1;
  hadc1.Init.DMAContinuousRequests = DISABLE;
  hadc1.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
  if (HAL_ADC_Init(&hadc1) != HAL_OK)
  {
    Error_Handler();
  }
  /** Configure for the selected ADC regular channel its corresponding rank in the sequencer and its sample time.*/
  sConfig.Channel = ADC_CHANNEL_4;
  sConfig.Rank = ADC_REGULAR_RANK_1;
  sConfig.SamplingTime = ADC_SAMPLETIME_3CYCLES;
  if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }
}

void HAL_ADC_MspInit(ADC_HandleTypeDef* adcHandle)
{
  GPIO_InitTypeDef GPIO_InitStruct = {0};
  if(adcHandle->Instance==ADC1)
  {
    /* ADC1 clock enable */
    __HAL_RCC_ADC1_CLK_ENABLE();
    __HAL_RCC_GPIOA_CLK_ENABLE();
    /**ADC1 GPIO Configuration
    PA4     ------> ADC1_IN4*/
    GPIO_InitStruct.Pin = GPIO_PIN_4;
    GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
  }
}

void HAL_ADC_MspDeInit(ADC_HandleTypeDef* adcHandle)
{
  if(adcHandle->Instance==ADC1)
  {
    /* Peripheral clock disable */
    __HAL_RCC_ADC1_CLK_DISABLE();
    /**ADC1 GPIO Configuration
    PA4     ------> ADC1_IN4*/
    HAL_GPIO_DeInit(GPIOA, GPIO_PIN_4);
  }
}
/* USER CODE BEGIN 1 */
uint16_t ADC_Get_Value(void)
{
	uint16_t temp;
	HAL_ADC_Start(&hadc1);
	temp = HAL_ADC_GetValue(&hadc1);
	return temp;
}
/* USER CODE END 1 */
```
####  TIM2代码
```html
#include "tim.h"

/* USER CODE BEGIN 0 */
#include "stm32f7xx_hal.h"
TIM_OC_InitTypeDef sConfigOC = {0};
/* USER CODE END 0 */

TIM_HandleTypeDef htim2;

/* TIM2 init function */
void MX_TIM2_Init(void)
{
  TIM_ClockConfigTypeDef sClockSourceConfig = {0};
  TIM_MasterConfigTypeDef sMasterConfig = {0};
  TIM_OC_InitTypeDef sConfigOC = {0};
  htim2.Instance = TIM2;
  htim2.Init.Prescaler = 99;
  htim2.Init.CounterMode = TIM_COUNTERMODE_UP;
  htim2.Init.Period = 19999;
  htim2.Init.ClockDivision = TIM_CLOCKDIVISION_DIV4;
  htim2.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_ENABLE;
  if (HAL_TIM_Base_Init(&htim2) != HAL_OK)
  {
    Error_Handler();
  }
  sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
  if (HAL_TIM_ConfigClockSource(&htim2, &sClockSourceConfig) != HAL_OK)
  {
    Error_Handler();
  }
  if (HAL_TIM_PWM_Init(&htim2) != HAL_OK)
  {
    Error_Handler();
  }
  sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
  sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
  if (HAL_TIMEx_MasterConfigSynchronization(&htim2, &sMasterConfig) != HAL_OK)
  {
    Error_Handler();
  }
  sConfigOC.OCMode = TIM_OCMODE_PWM1;
  sConfigOC.Pulse = 0;
  sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
  sConfigOC.OCFastMode = TIM_OCFAST_ENABLE;
  if (HAL_TIM_PWM_ConfigChannel(&htim2, &sConfigOC, TIM_CHANNEL_3) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN TIM2_Init 2 */
  HAL_TIM_GetActiveChannel(&htim2);
  /* USER CODE END TIM2_Init 2 */
  HAL_TIM_MspPostInit(&htim2);
}
void HAL_TIM_Base_MspInit(TIM_HandleTypeDef* tim_baseHandle)
{
  if(tim_baseHandle->Instance==TIM2)
  {
   /* TIM2 clock enable */
   __HAL_RCC_TIM2_CLK_ENABLE();
  }
}
void HAL_TIM_MspPostInit(TIM_HandleTypeDef* timHandle)
{
  GPIO_InitTypeDef GPIO_InitStruct = {0};
  if(timHandle->Instance==TIM2)
  {
    __HAL_RCC_GPIOB_CLK_ENABLE();
    /**TIM2 GPIO Configuration
    PB10     ------> TIM2_CH3*/
    GPIO_InitStruct.Pin = GPIO_PIN_10;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_PULLDOWN;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF1_TIM2;
    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
  }
}
void HAL_TIM_Base_MspDeInit(TIM_HandleTypeDef* tim_baseHandle)
{
  if(tim_baseHandle->Instance==TIM2)
  {
   /* Peripheral clock disable */
   __HAL_RCC_TIM2_CLK_DISABLE();
  }
}
/* USER CODE BEGIN 1 */
void Pwm_Start(void)
{
	HAL_TIM_PWM_Start(&htim2,TIM_CHANNEL_3);
}
void Pwm_Set_CCR(uint16_t ccr)
{
	htim2.Instance->CCR3 = ccr;
}
/* USER CODE END 1 */
```
####  Main.c代码
```html
#include "main.h"
#include "adc.h"
#include "i2c.h"
#include "tim.h"
#include "gpio.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "stm32f7xx_hal_adc.h"
#include "OLED.h"
/* USER CODE END Includes */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);

/* Private user code ---------------------------------------------------------*/

int main(void)
{
  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

/* Configure the system clock */
  SystemClock_Config();

/* USER CODE BEGIN SysInit */
	uint16_t speed;
	uint16_t value;
  /* USER CODE END SysInit */

/* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_TIM2_Init();
  MX_ADC1_Init();
  MX_I2C1_Init();
  /* USER CODE BEGIN 2 */
	OLED_Init();
	HAL_ADC_MspInit(&hadc1);
	MX_ADC1_Init();
	Pwm_Start();
	Pwm_Set_CCR(3000);
	OLED_Clear();
  /* USER CODE END 2 */

/* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
	value = ADC_Get_Value();
	OLED_ShowNum(1,1,value,5);
	speed = (uint16_t)((float)value / 4096 * 800);
	Pwm_Set_CCR(speed+1000);
    /* USER CODE END WHILE */
  }
}
```
# 效果展示
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学习了，谢谢分享~~~ 详情回复发表于 2023-9-25 18:50

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980 帖子	0 TA的资源

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非常不错，学习了，感谢分享～～～

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学习了，谢谢分享~~~

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