写一个stm32f103rct6做MCU步进电机驱动芯片A3982pwm控制步进电机速度的驱动程序的h文件和c文件定时器TIM2 CH1pwm引脚PB0DIR引脚PB10ENABLE引脚PB11A3982的A相输出引脚P1和P24B相输出引脚P4和P21接上电源后电机直接转动PB11输出高电平

由于题目中没有具体的要求和参数，以下是一个简单的驱动程序示例，仅供参考：

步进电机驱动程序的h文件：

#ifndef __STEPPER_H #define __STEPPER_H

#include "stm32f10x.h"

#define STEPPER_PWM_PIN GPIO_Pin_0 #define STEPPER_PWM_PORT GPIOB #define STEPPER_PWM_CLK RCC_APB2Periph_GPIOB

#define STEPPER_DIR_PIN GPIO_Pin_10 #define STEPPER_DIR_PORT GPIOB #define STEPPER_DIR_CLK RCC_APB2Periph_GPIOB

#define STEPPER_EN_PIN GPIO_Pin_11 #define STEPPER_EN_PORT GPIOB #define STEPPER_EN_CLK RCC_APB2Periph_GPIOB

#define STEPPER_A1_PIN GPIO_Pin_1 #define STEPPER_A1_PORT GPIOA #define STEPPER_A1_CLK RCC_APB2Periph_GPIOA

#define STEPPER_A2_PIN GPIO_Pin_4 #define STEPPER_A2_PORT GPIOA #define STEPPER_A2_CLK RCC_APB2Periph_GPIOA

#define STEPPER_B1_PIN GPIO_Pin_2 #define STEPPER_B1_PORT GPIOB #define STEPPER_B1_CLK RCC_APB2Periph_GPIOB

#define STEPPER_B2_PIN GPIO_Pin_5 #define STEPPER_B2_PORT GPIOB #define STEPPER_B2_CLK RCC_APB2Periph_GPIOB

void STEPPER_Init(void); void STEPPER_SetSpeed(uint16_t speed); void STEPPER_SetDirection(uint8_t dir); void STEPPER_Enable(void); void STEPPER_Disable(void);

#endif

步进电机驱动程序的c文件：

#include "stepper.h"

void STEPPER_Init(void) { GPIO_InitTypeDef GPIO_InitStruct; TIM_TimeBaseInitTypeDef TIM_InitStruct; TIM_OCInitTypeDef TIM_OC_InitStruct;

RCC_APB2PeriphClockCmd(STEPPER_PWM_CLK | STEPPER_DIR_CLK | STEPPER_EN_CLK, ENABLE);

GPIO_InitStruct.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStruct.GPIO_Pin = STEPPER_PWM_PIN;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(STEPPER_PWM_PORT, &GPIO_InitStruct);

GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStruct.GPIO_Pin = STEPPER_DIR_PIN | STEPPER_EN_PIN;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(STEPPER_DIR_PORT, &GPIO_InitStruct);
GPIO_SetBits(STEPPER_EN_PORT, STEPPER_EN_PIN);

GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IPU;
GPIO_InitStruct.GPIO_Pin = STEPPER_A1_PIN | STEPPER_A2_PIN | STEPPER_B1_PIN | STEPPER_B2_PIN;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(STEPPER_A1_PORT, &GPIO_InitStruct);
GPIO_Init(STEPPER_B1_PORT, &GPIO_InitStruct);

TIM_InitStruct.TIM_ClockDivision = TIM_CKD_DIV1;
TIM_InitStruct.TIM_CounterMode = TIM_CounterMode_Up;
TIM_InitStruct.TIM_Period = 1000;
TIM_InitStruct.TIM_Prescaler = 72 - 1;
TIM_TimeBaseInit(TIM2, &TIM_InitStruct);

TIM_OC_InitStruct.TIM_OCMode = TIM_OCMode_PWM1;
TIM_OC_InitStruct.TIM_OutputState = TIM_OutputState_Enable;
TIM_OC_InitStruct.TIM_Pulse = 500;
TIM_OC_InitStruct.TIM_OCPolarity = TIM_OCPolarity_High;
TIM_OC1Init(TIM2, &TIM_OC_InitStruct);

TIM_Cmd(TIM2, ENABLE);

}

void STEPPER_SetSpeed(uint16_t speed) { TIM_SetCompare1(TIM2, speed); }

void STEPPER_SetDirection(uint8_t dir) { if (dir == 0) { GPIO_ResetBits(STEPPER_DIR_PORT, STEPPER_DIR_PIN); } else { GPIO_SetBits(STEPPER_DIR_PORT, STEPPER_DIR_PIN); } }

void STEPPER_Enable(void) { GPIO_ResetBits(STEPPER_EN_PORT, STEPPER_EN_PIN); }

void STEPPER_Disable(void) { GPIO_SetBits(STEPPER_EN_PORT, STEPPER_EN_PIN); }