假设使用的是MM32SPIN05 MCU，可以参考以下代码进行PWM初始化
#include "MM32SPIN05.h" // 根据实际的头文件名称修改
void PWM_Init(void) {
// 假设使用TIM1作为PWM输出定时器
RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
GPIO_InitTypeDef GPIO_InitStructure;
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
// 配置PWM输出引脚 (PA8 对应 TIM1 CH1)
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
// 配置定时器
TIM_TimeBaseStructure.TIM_Period = 1000 - 1; // PWM周期
TIM_TimeBaseStructure.TIM_Prescaler = 72 - 1; // 时钟预分频
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure);
// 配置PWM模式
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_Pulse = 0; // 初始占空比
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
TIM_OC1Init(TIM1, &TIM_OCInitStructure);
TIM_CtrlPWMOutputs(TIM1, ENABLE); // 使能PWM输出
TIM_Cmd(TIM1, ENABLE); // 使能定时器
}
void Set_PWM_Duty(uint16_t duty) {
TIM_SetCompare1(TIM1, duty); // 设置比较值，调整占空比
}
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