我想要写一段stm32代码显示要素包括界面名称（DATA）、PWM 输出模式（M）、实时占空比（P）、实 时速度（V

）和实时电流（I），应该如何写？

这个问题属于技术问题，我可以回答。您可以按照以下步骤编写代码：

1. 首先，您需要在STM32上配置PWM输出模式和管脚。您可以参考STM32的手册和数据表来完成这个步骤。

2. 接下来，您需要编写代码来读取实时速度和电流的传感器数据。可以通过ADC模块读取电流传感器，通过编码器模块读取速度传感器。

3. 然后，您需要计算实时占空比，这是通过测量PWM周期和占空比来完成的。可以通过定时器模块实现。

4. 最后，您可以在LCD或OLED上显示要素，包括界面名称（DATA）、PWM输出模式（M）、实时占空比（P）、实时速度（V）和实时电流（I）的数值。

希望这个回答能够帮到您！

相关问题

stm32配置生成波特率500K 标准帧，定时器1通道1生成的频率500HZ的PWM，当收到ID：110 数据：00 00 00 00 00 00 11时PWM输出10%的占空比，当收到ID：110 数据：00 00 00 00 00 00 12时PWM输出20%的占空比，当收到ID：110 数据：00 00 00 00 00 00 13时PWM输出30%的占空比，当收到ID：110 数据：00 00 00 00 00 00 14时PWM输出40%的占空比，当收到ID：110 数据：00 00 00 00 00 00 15时PWM输出50%的占空比，当收到ID：110 数据：00 00 00 00 00 00 16时PWM输出60%的占空比，当收到ID：110 数据：00 00 00 00 00 00 17时PWM输出70%的占空比，当收到ID：110 数据：00 00 00 00 00 00 18时PWM输出80%的占空比，当收到ID：110 数据：00 00 00 00 00 00 19时PWM输出90%的占空比，当收到ID：110 数据：00 00 00 00 00 00 10时PWM输出0%的占空比，当收到ID：110 数据：00 00 00 00 00 00 20时PWM输出100%的占空比的代码

以下是一个示例代码，用于在STM32上配置CAN总线和定时器1通道1生成PWM，并根据接收到的ID和数据来控制PWM的占空比。

#include "stm32f4xx.h"
#include "stm32f4xx_hal.h"

CAN_HandleTypeDef hcan1;
TIM_HandleTypeDef htim1;

void SystemClock_Config(void);
void MX_GPIO_Init(void);
void MX_CAN1_Init(void);
void MX_TIM1_Init(void);

uint32_t pwm_duty_cycle = 0;

int main(void)
{
  HAL_Init();
  SystemClock_Config();
  MX_GPIO_Init();
  MX_CAN1_Init();
  MX_TIM1_Init();

  while (1)
  {
    if (HAL_CAN_GetRxFifoFillLevel(&hcan1, CAN_RX_FIFO0))
    {
      CAN_RxHeaderTypeDef rx_header;
      uint8_t rx_data[8];
      HAL_CAN_GetRxMessage(&hcan1, CAN_RX_FIFO0, &rx_header, rx_data);
      
      if (rx_header.StdId == 110)
      {
        if (rx_data[6] == 0x11)
          pwm_duty_cycle = 10;
        else if (rx_data[6] == 0x12)
          pwm_duty_cycle = 20;
        else if (rx_data[6] == 0x13)
          pwm_duty_cycle = 30;
        else if (rx_data[6] == 0x14)
          pwm_duty_cycle = 40;
        else if (rx_data[6] == 0x15)
          pwm_duty_cycle = 50;
        else if (rx_data[6] == 0x16)
          pwm_duty_cycle = 60;
        else if (rx_data[6] == 0x17)
          pwm_duty_cycle = 70;
        else if (rx_data[6] == 0x18)
          pwm_duty_cycle = 80;
        else if (rx_data[6] == 0x19)
          pwm_duty_cycle = 90;
        else if (rx_data[6] == 0x10)
          pwm_duty_cycle = 0;
        else if (rx_data[6] == 0x20)
          pwm_duty_cycle = 100;
          
        __HAL_TIM_SET_COMPARE(&htim1, TIM_CHANNEL_1, (pwm_duty_cycle * __HAL_TIM_GET_AUTORELOAD(&htim1)) / 100);
      }
    }
  }
}

void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct;
  RCC_ClkInitTypeDef RCC_ClkInitStruct;
  HAL_StatusTypeDef ret = HAL_OK;
  
  __HAL_RCC_PWR_CLK_ENABLE();
  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
  
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
  
  ret = HAL_RCC_OscConfig(&RCC_OscInitStruct);
  
  if (ret != HAL_OK)
    while(1);
  
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
  
  ret = HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0);
  
  if (ret != HAL_OK)
    while(1);
}

void MX_GPIO_Init(void)
{
  GPIO_InitTypeDef GPIO_InitStruct;
  
  __HAL_RCC_GPIOA_CLK_ENABLE();
  
  GPIO_InitStruct.Pin = GPIO_PIN_8;
  GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  GPIO_InitStruct.Alternate = GPIO_AF1_TIM1;
  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
}

void MX_CAN1_Init(void)
{
  hcan1.Instance = CAN1;
  hcan1.Init.Prescaler = 4;    // 配置波特率500K
  hcan1.Init.Mode = CAN_MODE_NORMAL;
  hcan1.Init.SyncJumpWidth = CAN_SJW_1TQ;
  hcan1.Init.TimeSeg1 = CAN_BS1_11TQ;
  hcan1.Init.TimeSeg2 = CAN_BS2_2TQ;
  hcan1.Init.TimeTriggeredMode = DISABLE;
  hcan1.Init.AutoBusOff = DISABLE;
  hcan1.Init.AutoWakeUp = DISABLE;
  hcan1.Init.AutoRetransmission = ENABLE;
  hcan1.Init.ReceiveFifoLocked = DISABLE;
  hcan1.Init.TransmitFifoPriority = DISABLE;
  
  if (HAL_CAN_Init(&hcan1) != HAL_OK)
    while(1);
  
  CAN_FilterTypeDef can_filter;
  
  can_filter.FilterBank = 0;
  can_filter.FilterMode = CAN_FILTERMODE_IDMASK;
  can_filter.FilterScale = CAN_FILTERSCALE_32BIT;
  can_filter.FilterIdHigh = 0x0000;
  can_filter.FilterIdLow = 0x0000;
  can_filter.FilterMaskIdHigh = 0x0000;
  can_filter.FilterMaskIdLow = 0x0000;
  can_filter.FilterFIFOAssignment = CAN_RX_FIFO0;
  can_filter.FilterActivation = ENABLE;
  
  if (HAL_CAN_ConfigFilter(&hcan1, &can_filter) != HAL_OK)
    while(1);
  
  if (HAL_CAN_Start(&hcan1) != HAL_OK)
    while(1);
  
  if (HAL_CAN_ActivateNotification(&hcan1, CAN_IT_RX_FIFO0_MSG_PENDING) != HAL_OK)
    while(1);
}

void MX_TIM1_Init(void)
{
  TIM_MasterConfigTypeDef sMasterConfig;
  TIM_OC_InitTypeDef sConfigOC;
  
  __HAL_RCC_TIM1_CLK_ENABLE();
  
  htim1.Instance = TIM1;
  htim1.Init.Prescaler = (SystemCoreClock / 1000000) - 1;    // 设置频率为500Hz
  htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
  htim1.Init.Period = 10000;    // 设置计数器为10000，即PWM周期为500Hz
  htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
  
  if (HAL_TIM_PWM_Init(&htim1) != HAL_OK)
    while(1);
  
  sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
  sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
  
  if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig) != HAL_OK)
    while(1);
  
  sConfigOC.OCMode = TIM_OCMODE_PWM1;
  sConfigOC.Pulse = 0;
  sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
  sConfigOC.OCFastMode = TIM_OCFAST_DISABLE;
  
  if (HAL_TIM_PWM_ConfigChannel(&htim1, &sConfigOC, TIM_CHANNEL_1) != HAL_OK)
    while(1);
  
  if (HAL_TIM_PWM_Start(&htim1, TIM_CHANNEL_1) != HAL_OK)
    while(1);
}

请注意，以上代码是一个简单的示例，仅供参考。您可能需要根据您的具体硬件和应用程序需求进行适当的修改。确保正确配置引脚、时钟和其他相关参数。

stm32发送串口改变pwm占空比代码

以下是实现该功能的示例代码：

#include "stm32f4xx.h"

void UART_Config(void);
void PWM_Config(void);

int main(void)
{
    UART_Config();
    PWM_Config();

    while(1)
    {
        uint8_t data;
        if(USART_GetFlagStatus(USART1, USART_FLAG_RXNE) == SET)
        {
            data = USART_ReceiveData(USART1);
            TIM_SetCompare1(TIM4, data);
        }
    }
}

void UART_Config(void)
{
    GPIO_InitTypeDef  GPIO_InitStructure;
    USART_InitTypeDef USART_InitStructure;

    RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB, ENABLE);
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);

    GPIO_PinAFConfig(GPIOB, GPIO_PinSource6, GPIO_AF_USART1);
    GPIO_PinAFConfig(GPIOB, GPIO_PinSource7, GPIO_AF_USART1);

    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
    GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
    GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOB, &GPIO_InitStructure);

    USART_InitStructure.USART_BaudRate = 9600;
    USART_InitStructure.USART_WordLength = USART_WordLength_8b;
    USART_InitStructure.USART_StopBits = USART_StopBits_1;
    USART_InitStructure.USART_Parity = USART_Parity_No;
    USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
    USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
    USART_Init(USART1, &USART_InitStructure);

    USART_Cmd(USART1, ENABLE);
}

void PWM_Config(void)
{
    GPIO_InitTypeDef GPIO_InitStructure;
    TIM_TimeBaseInitTypeDef TIM_TimeBase_InitStructure;
    TIM_OCInitTypeDef TIM_OC_InitStructure;

    RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4,ENABLE);
    RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB,ENABLE);

    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
    GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
    GPIO_Init(GPIOB, &GPIO_InitStructure);

    GPIO_PinAFConfig(GPIOB, GPIO_PinSource6, GPIO_AF_TIM4);

    TIM_TimeBase_InitStructure.TIM_Prescaler = 83; // =84-1, 84MHz/84=1MHz
    TIM_TimeBase_InitStructure.TIM_CounterMode = TIM_CounterMode_Up;
    TIM_TimeBase_InitStructure.TIM_Period = 999; // PWM frequency = 1MHz/(999+1) = 1kHz
    TIM_TimeBase_InitStructure.TIM_ClockDivision = TIM_CKD_DIV1;
    TIM_TimeBaseInit(TIM4,&TIM_TimeBase_InitStructure);

    TIM_OC_InitStructure.TIM_OCMode = TIM_OCMode_PWM1;
    TIM_OC_InitStructure.TIM_OutputState = TIM_OutputState_Enable;
    TIM_OC_InitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
    TIM_OC_InitStructure.TIM_Pulse = 500; // initial PWM duty cycle = 50%
    TIM_OC1Init(TIM4, &TIM_OC_InitStructure);

    TIM_Cmd(TIM4, ENABLE);
}

这段代码实现了一个基于STM32的串口控制PWM的功能。用户可以通过串口发送值来改变PWM的占空比。具体实现方式是，每当串口接收到一个字节时，就将该字节的值设为PWM的占空比。例如，如果用户发送的字节为 128，则PWM的占空比就会被设置为 50%。另外，为了方便起见，本代码假设用户是以 9600bps 的波特率通过USART1发送数据的。