本人在尝试使用定时器1来驱动舵机时，发现通道2无法输出正确的信号来驱动舵机，通道1、3、4均可以正常使用；

附上舵机驱动程序

#include?"Server.h"
#include?"ch32v30x_rcc.h"

static?void?TIM1_PWMOut_Init(u16?arr,?u16?psc,?u16?ccp)?{
????GPIO_InitTypeDef?GPIO_InitStructure?=?{?0?};
????TIM_OCInitTypeDef?TIM_OCInitStructure?=?{?0?};
????TIM_TimeBaseInitTypeDef?TIM_TimeBaseInitStructure?=?{?0?};

????RCC_APB2PeriphClockCmd(?RCC_APB2Periph_GPIOA?|?RCC_APB2Periph_TIM1,?ENABLE);

????GPIO_InitStructure.GPIO_Pin?=?GPIO_Pin_8?|?GPIO_Pin_9?|?GPIO_Pin_10?|?GPIO_Pin_11;
????GPIO_InitStructure.GPIO_Mode?=?GPIO_Mode_AF_PP;
????GPIO_InitStructure.GPIO_Speed?=?GPIO_Speed_50MHz;
????GPIO_Init(?GPIOA,?&GPIO_InitStructure);

????TIM_TimeBaseInitStructure.TIM_Period?=?arr;
????TIM_TimeBaseInitStructure.TIM_Prescaler?=?psc;
????TIM_TimeBaseInitStructure.TIM_ClockDivision?=?TIM_CKD_DIV1;
????TIM_TimeBaseInitStructure.TIM_CounterMode?=?TIM_CounterMode_Up;
????TIM_TimeBaseInit(?TIM1,?&TIM_TimeBaseInitStructure);

#if?(PWM_MODE?==?PWM_MODE1)
????TIM_OCInitStructure.TIM_OCMode?=?TIM_OCMode_PWM1;

#elif?(PWM_MODE?==?PWM_MODE2)
????TIM_OCInitStructure.TIM_OCMode?=?TIM_OCMode_PWM2;
#endif

????TIM_OCInitStructure.TIM_OutputState?=?TIM_OutputState_Enable;
????TIM_OCInitStructure.TIM_Pulse?=?ccp;
????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_CtrlPWMOutputs(TIM1,?ENABLE);

????TIM_OC1PreloadConfig(?TIM1,?TIM_OCPreload_Disable);
????TIM_OC2PreloadConfig(?TIM1,?TIM_OCPreload_Disable);
????TIM_OC3PreloadConfig(?TIM1,?TIM_OCPreload_Disable);
????TIM_OC4PreloadConfig(?TIM1,?TIM_OCPreload_Disable);
????TIM_ARRPreloadConfig(?TIM1,?ENABLE);

????TIM_Cmd(?TIM1,?ENABLE);
}

void?server_init()?{
????TIM1_PWMOut_Init(20000,?96?-?1,?20000?-?2500);
}

void?SetServerAnger(int?angle)?{
????TIM_SetCompare1(TIM1,?20000?-?(angle?*?ANGLE)?-?500);
????TIM_SetCompare2(TIM1,?20000?-?(angle?*?ANGLE)?-?500);
????TIM_SetCompare3(TIM1,?20000?-?(angle?*?ANGLE)?-?500);
????TIM_SetCompare4(TIM1,?20000?-?(angle?*?ANGLE)?-?500);
}

您好，可以检查一下该通道所用PA9是不是和串口打印的TX引脚冲突了。例程应该默认串口1打印，Tx引脚用的也是PA9引脚，打印串口可以通过相关宏定义改为串口2试一下，如下图

谢谢，这个问题得到了完美的解决！再次感谢你的帮助