stm32f103输出6个开 /关交替的PWM波通过自举电路驱动无刷直流电机，代码

以下是一个简单的示例代码，用于在STM32F103上驱动6个PWM信号以控制无刷直流电机：

#include "stm32f10x.h"
#include "stm32f10x_tim.h"
#include "stm32f10x_gpio.h"
#include "stm32f10x_rcc.h"

int main(void)
{
    // 初始化GPIO引脚
    GPIO_InitTypeDef GPIO_InitStructure;
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB | RCC_APB2Periph_AFIO, ENABLE);

    // 配置PWM输出引脚
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOA, &GPIO_InitStructure);

    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOB, &GPIO_InitStructure);

    // 初始化定时器
    TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
    TIM_OCInitTypeDef TIM_OCInitStructure;
    RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1 | RCC_APB2Periph_TIM8, ENABLE);

    // 配置定时器3作为PWM输出
    TIM_TimeBaseStructure.TIM_Period = 999;
    TIM_TimeBaseStructure.TIM_Prescaler = 71;
    TIM_TimeBaseStructure.TIM_ClockDivision = 0;
    TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
    TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure);

    TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
    TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
    TIM_OCInitStructure.TIM_Pulse = 500;
    TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;

    TIM_OC1Init(TIM3, &TIM_OCInitStructure);
    TIM_OC2Init(TIM3, &TIM_OCInitStructure);
    TIM_OC3Init(TIM3, &TIM_OCInitStructure);
    TIM_OC4Init(TIM3, &TIM_OCInitStructure);

    // 配置定时器1和8作为自举电路
    TIM_TimeBaseStructure.TIM_Period = 999;
    TIM_TimeBaseStructure.TIM_Prescaler = 71;
    TIM_TimeBaseStructure.TIM_ClockDivision = 0;
    TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
    TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure);
    TIM_TimeBaseInit(TIM8, &TIM_TimeBaseStructure);

    TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
    TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
    TIM_OCInitStructure.TIM_Pulse = 500;
    TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;

    TIM_OC1Init(TIM1, &TIM_OCInitStructure);
    TIM_OC2Init(TIM1, &TIM_OCInitStructure);
    TIM_OC3Init(TIM1, &TIM_OCInitStructure);
    TIM_OC4Init(TIM1, &TIM_OCInitStructure);

    TIM_OC1Init(TIM8, &TIM_OCInitStructure);
    TIM_OC2Init(TIM8, &TIM_OCInitStructure);
    TIM_OC3Init(TIM8, &TIM_OCInitStructure);
    TIM_OC4Init(TIM8, &TIM_OCInitStructure);

    // 启动定时器
    TIM_Cmd(TIM3, ENABLE);
    TIM_Cmd(TIM1, ENABLE);
    TIM_Cmd(TIM8, ENABLE);

    while (1)
    {
        TIM_SetCompare1(TIM1, 500);
        TIM_SetCompare2(TIM8, 0);
        TIM_SetCompare3(TIM8, 500);
        TIM_SetCompare4(TIM8, 0);
        TIM_SetCompare1(TIM3, 0);
        TIM_SetCompare2(TIM3, 500);
        TIM_SetCompare3(TIM3, 0);
        TIM_SetCompare4(TIM3, 500);
        Delay(1000);
        TIM_SetCompare1(TIM1, 0);
        TIM_SetCompare2(TIM8, 500);
        TIM_SetCompare3(TIM8, 0);
        TIM_SetCompare4(TIM8, 500);
        TIM_SetCompare1(TIM3, 500);
        TIM_SetCompare2(TIM3, 0);
        TIM_SetCompare3(TIM3, 500);
        TIM_SetCompare4(TIM3, 0);
        Delay(1000);
    }
}

// 简单的延时函数
void Delay(__IO uint32_t nCount)
{
    for (; nCount != 0; nCount--);
}

该代码将使用定时器1、8和3来生成6个PWM信号，分别连接到无刷直流电机的6个引脚上。在while循环中，交替设置PWM信号的占空比以控制电机的转速。在实际应用中需要根据具体的电机参数进行调整。