STM32F407 步进电机复位找原点

/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2022 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 "bsp_delay.h"
#include "bsp_key.h"
#include "bsp_motor.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 ---------------------------------------------------------*/
TIM_HandleTypeDef htim8;

UART_HandleTypeDef huart1;

/* USER CODE BEGIN PV */

uint8_t motor_pos_init_ing = 0;	/* 电机正在复位标志 */

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_TIM8_Init(void);
static void MX_USART1_UART_Init(void);
/* USER CODE BEGIN PFP */

/* 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_TIM8_Init();
  MX_USART1_UART_Init();
  /* USER CODE BEGIN 2 */
	
	delay_init(168);
	
	HAL_GPIO_WritePin(GPIOD, GPIO_PIN_3, GPIO_PIN_RESET);		/* 设置方向 */
	HAL_GPIO_WritePin(GPIOD, GPIO_PIN_7, GPIO_PIN_RESET);	/* 使能ENABLE */
	
	g_motor_state = MOTOR_STOP;
	
	uint32_t tick_start_run;	/* 开始运行时刻 */
	uint32_t tick;
	uint8_t buffer_usart_send[16];
	uint8_t i;
	uint16_t sum;
	uint32_t speed_step_per_second;
	
	
  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
		if((KEY1_StateRead()==KEY_DOWN) && (motor_pos_init_ing == 0))
    {
			motor_s_shape_acceleration_init(300, 100, 10);
			tick_start_run = HAL_GetTick();
    }
		if ((KEY2_StateRead() == KEY_DOWN) && (motor_pos_init_ing == 0))
		{
			motor_s_shape_acceleration_init(-300, 100, 10);
			tick_start_run = HAL_GetTick();
		}
		if (KEY3_StateRead() == KEY_DOWN)	/* 电机复位 */
		{
			HAL_TIM_PWM_Stop_IT(&htim8, TIM_CHANNEL_1);
			motor_pos_init_ing = 1;
		}
		
		if (motor_pos_init_ing)
		{
			motor_pos_init(100, 10);
		}
		
		tick = HAL_GetTick();
		
		if (MOTOR_STOP != g_motor_state)
		{
			speed_step_per_second = TIM_CLK / g_step_timer_pulse_num;
			
			buffer_usart_send[0] = 0x01;	/* 帧头 */
			buffer_usart_send[1] = 0x67;	/* 帧头 */	
			buffer_usart_send[2] = 0x42;	/* 帧头 */
			buffer_usart_send[3] = 0xc0;	/* 帧头 */
			buffer_usart_send[4] = (tick - tick_start_run) >> 8;		/* 时刻 */
			buffer_usart_send[5] = (tick - tick_start_run) & 0xff;	/* 时刻 */
			buffer_usart_send[6] = speed_step_per_second >> 24;		/* 电机运行一步需要定时器的脉冲数 */
			buffer_usart_send[7] = speed_step_per_second >> 16;		/* 电机运行一步需要定时器的脉冲数 */
			buffer_usart_send[8] = speed_step_per_second >> 8;			/* 电机运行一步需要定时器的脉冲数 */
			buffer_usart_send[9] = speed_step_per_second & 0xff;		/* 电机运行一步需要定时器的脉冲数 */
			buffer_usart_send[10] = g_steps_done_total >> 24;							/* 电机已经运行的总步数 */
			buffer_usart_send[11] = g_steps_done_total >> 16;							/* 电机已经运行的总步数 */
			buffer_usart_send[12] = g_steps_done_total >> 8;							/* 电机已经运行的总步数 */
			buffer_usart_send[13] = g_steps_done_total & 0xff;						/* 电机已经运行的总步数 */
			
			sum = 0;
			for (i = 4; i < 14; i++)
			{
				sum += buffer_usart_send[i];
			}
			buffer_usart_send[14] = sum >> 8;
			buffer_usart_send[15] = sum & 0xff;
			
			HAL_UART_Transmit(&huart1, buffer_usart_send, 16, 1000);
			
			//delay_ms(10);
		}
		else 
		{
			tick_start_run = HAL_GetTick();
		}
		
    /* 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};

  /** Configure the main internal regulator output voltage
  */
  __HAL_RCC_PWR_CLK_ENABLE();
  __HAL_PWR_VOLTAGESCALING_CONFIG(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 = 8;
  RCC_OscInitStruct.PLL.PLLN = 336;
  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
  RCC_OscInitStruct.PLL.PLLQ = 4;
  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_DIV