普通定时器实现两路pwm任意相位差的程序

以下是使用单片机STM32F4的TIM2和TIM3定时器实现两路PWM信号并调整任意相位差的程序示例：

#include "stm32f4xx.h"

void TIM2_Configuration(void);
void TIM3_Configuration(void);
void GPIO_Configuration(void);

int main(void)
{
    TIM2_Configuration();
    TIM3_Configuration();
    GPIO_Configuration();

    while (1) {
        // 可以在此处调整两路PWM信号的占空比和相位差
        TIM2->CCR1 = 100; // TIM2_CH1的占空比为50%
        TIM2->CCR2 = 200; // TIM2_CH2的占空比为66.7%
        TIM3->CCR1 = 300; // TIM3_CH1的占空比为75%
        TIM3->CCR2 = 400; // TIM3_CH2的占空比为80%
        TIM3->CNT = 100; // TIM3计数器初始值为100
    }
}

void TIM2_Configuration(void)
{
    TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
    TIM_OCInitTypeDef TIM_OCInitStructure;

    RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);

    TIM_TimeBaseStructure.TIM_Period = 8399; // PWM信号频率为10KHz
    TIM_TimeBaseStructure.TIM_Prescaler = 0;
    TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
    TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
    TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);

    TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
    TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
    TIM_OCInitStructure.TIM_Pulse = 0;
    TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
    TIM_OC1Init(TIM2, &TIM_OCInitStructure);
    TIM_OC2Init(TIM2, &TIM_OCInitStructure);

    TIM_Cmd(TIM2, ENABLE);
}

void TIM3_Configuration(void)
{
    TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
    TIM_OCInitTypeDef TIM_OCInitStructure;

    RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);

    TIM_TimeBaseStructure.TIM_Period = 8399; // PWM信号频率为10KHz
    TIM_TimeBaseStructure.TIM_Prescaler = 0;
    TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
    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 = 0;
    TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
    TIM_OC1Init(TIM3, &TIM_OCInitStructure);
    TIM_OC2Init(TIM3, &TIM_OCInitStructure);

    TIM_Cmd(TIM3, ENABLE);
}

void GPIO_Configuration(void)
{
    GPIO_InitTypeDef GPIO_InitStructure;

    // 配置TIM2_CH1和TIM2_CH2的GPIO引脚
    RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
    GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
    GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
    GPIO_Init(GPIOA, &GPIO_InitStructure);
    GPIO_PinAFConfig(GPIOA, GPIO_PinSource0, GPIO_AF_TIM2);
    GPIO_PinAFConfig(GPIOA, GPIO_PinSource1, GPIO_AF_TIM2);

    // 配置TIM3_CH1和TIM3_CH2的GPIO引脚
    RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOC, ENABLE);
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
    GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
    GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
    GPIO_Init(GPIOC, &GPIO_InitStructure);
    GPIO_PinAFConfig(GPIOC, GPIO_PinSource6, GPIO_AF_TIM3);
    GPIO_PinAFConfig(GPIOC, GPIO_PinSource7, GPIO_AF_TIM3);
}

上述程序中，TIM2和TIM3定时器都被配置为PWM模式，输出的频率为10KHz，占空比和相位差可以在主函数中进行调节。具体调节的方法可以根据需要进行修改。