stm32高级定时器pwm互补输出及死区设置驱动

在STM32的高级定时器中，可以通过配置定时器的输出比较模式来实现PWM输出。而互补输出则是指使用两个定时器通道来实现互补输出，其中一个通道输出PWM波的高电平部分，另一个通道输出PWM波的低电平部分，从而实现互补输出的效果。同时，为了避免MOS管同时导通，可以设置死区时间来控制两个通道的输出时间间隔。

以下是一个简单的代码示例，实现了使用TIM1作为高级定时器，PA8和PA9作为互补输出通道，同时设置了死区时间为100个时钟周期：

#include "stm32f4xx.h"

void TIM1_PWM_Init(void)
{
    TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
    TIM_OCInitTypeDef TIM_OCInitStructure;
    GPIO_InitTypeDef GPIO_InitStructure;

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE);
    RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);

    GPIO_PinAFConfig(GPIOA, GPIO_PinSource8, GPIO_AF_TIM1);
    GPIO_PinAFConfig(GPIOA, GPIO_PinSource9, GPIO_AF_TIM1);

    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9;
    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_100MHz;
    GPIO_Init(GPIOA, &GPIO_InitStructure);

    TIM_TimeBaseStructure.TIM_Period = 8399;
    TIM_TimeBaseStructure.TIM_Prescaler = 0;
    TIM_TimeBaseStructure.TIM_ClockDivision = 0;
    TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
    TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure);

    TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
    TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
    TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
    TIM_OCInitStructure.TIM_Pulse = 4199;
    TIM_OC1Init(TIM1, &TIM_OCInitStructure);

    TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2;
    TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
    TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
    TIM_OCInitStructure.TIM_Pulse = 4199;
    TIM_OC2Init(TIM1, &TIM_OCInitStructure);

    TIM_BDTRInitTypeDef TIM_BDTRInitStructure;
    TIM_BDTRInitStructure.TIM_OSSRState = TIM_OSSRState_Disable;
    TIM_BDTRInitStructure.TIM_OSSIState = TIM_OSSIState_Disable;
    TIM_BDTRInitStructure.TIM_LOCKLevel = TIM_LOCKLevel_OFF;
    TIM_BDTRInitStructure.TIM_DeadTime = 100;
    TIM_BDTRInitStructure.TIM_Break = TIM_Break_Disable;
    TIM_BDTRInitStructure.TIM_BreakPolarity = TIM_BreakPolarity_Low;
    TIM_BDTRInitStructure.TIM_AutomaticOutput = TIM_AutomaticOutput_Enable;
    TIM_BDTRConfig(TIM1, &TIM_BDTRInitStructure);

    TIM_Cmd(TIM1, ENABLE);
}

在该代码中，首先开启了TIM1和GPIOA的时钟，然后配置了PA8和PA9为复用输出模式，并将它们的复用引脚分别与TIM1的通道1和通道2相连。接着，配置了TIM1的计数器周期为8399，即定时器频率为84MHz/8400=10kHz。通道1和通道2都选择了PWM模式1，输出极性为高电平，占空比均为50%。最后，通过TIM_BDTRInitStructure结构体设置了死区时间为100个时钟周期，并启用了自动输出功能。

需要注意的是，该例程中使用的是STM32F407VG开发板，所以使用的是TIM1定时器。如果使用其他型号的开发板，需要根据具体情况修改代码中使用的定时器和GPIO引脚。