STM32 output comparison error and solution

Program 1: TIM2 output comparison, generating a square wave with a frequency of 366.2Hz

#include "stm32f10x.h"
void RCC_configuration(void)
{
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_AFIO,ENABLE); //Turn on the GPIO clock
  RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2,ENABLE);
}

void Led_Init(void)      
{
   GPIO_InitTypeDef GPIO_InitStruct; //Define the structure for GPIO initialization
  
   GPIO_InitStruct.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3; //Select pin 1, channel 2 of TIM2
   GPIO_InitStruct.GPIO_Speed ​​= GPIO_Speed_50MHz; //Select speed 50MHZ
   GPIO_InitStruct.GPIO_Mode = GPIO_Mode_AF_PP; //Multiplex push-pull output
   GPIO_Init(GPIOA,&GPIO_InitStruct); //Initialize IO port A
}

void NVIC_Configuration(void) //NVIC configuration
{
  NVIC_InitTypeDef NVIC_InitStruct;

  NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0); //Interrupt group 0
  NVIC_SetVectorTable(NVIC_VectTab_FLASH,0x0); //Interrupt vector FLASH
 
  NVIC_InitStruct.NVIC_IRQChannel = TIM2_IRQn;
  NVIC_InitStruct.NVIC_IRQChannelPreemptionPriority = 0; //Preempt priority 0 
     NVIC_InitStruct.NVIC_IRQChannelSubPriority = 0; //Sub priority 0
   NVIC_InitStruct.NVIC_IRQChannelCmd = ENABLE; //Interrupt vector enable
  NVIC_Init(&NVIC_InitStruct);  
}

void TIM2_Configuration(void)  
{
  TIM_TimeBaseInitTypeDef TIM_BaseInitStruct;
  TIM_OCInitTypeDef TIM_OCInitStruct;

  TIM_BaseInitStruct.TIM_Period = 65535; //Reload value
  TIM_BaseInitStruct.TIM_Prescaler = 2; //Prescaler value
  TIM_BaseInitStruct.TIM_ClockDivision = 0; 
  TIM_BaseInitStruct.TIM_CounterMode = TIM_CounterMode_Up; //Count up 0 ~ Period
  TIM_TimeBaseInit(TIM2,&TIM_BaseInitStruct); //Timer register initialization
  /************************Channel 1, the generated frequency is 366HZ************/
  TIM_OCInitStruct.TIM_OCMode = TIM_OCMode_Toggle; //Select timer mode: TIM pulse width modulation mode 2
  TIM_OCInitStruct.TIM_OutputState = TIM_OutputState_Enable; //Comparison output enable
  TIM_OCInitStruct.TIM_Pulse = 32768; //Set the pulse value to be loaded into the capture compare
  registerTIM_OCInitStruct.TIM_OCPolarity = TIM_OCPolarity_Low; //Output polarity: TIM output compare polarity highTIM_OC1Init
  (TIM2, &TIM_OCInitStruct); //Initialize the peripheral TIMx according to the parameters specified in TIM_OCInitStruct
  TIM_OC1PreloadConfig(TIM2, TIM_OCPreload_Enable); //Enable TIMx preload register on CCR2TIM_ITConfig
  (TIM2,TIM_IT_CC1,ENABLE); //TIM interrupt  
  enableTIM_ARRPreloadConfig(TIM2, ENABLE); //Enable TIMx preload register on
  ARRTIM_Cmd(TIM2,ENABLE); //Timer enable
}

int main(void)
{
  /* Setup STM32 system (clock, PLL and Flash configuration) */
  SystemInit();
  RCC_configuration();
  Led_Init();
  NVIC_Configuration();
  TIM2_Configuration();
 
  while (1)
  {
  }
}
/* *******************Interrupt function************************/
void TIM2_IRQHandler( void)
{
 uint16_t capture = 0;
        /**************Channel 1,366.2HZ************************/
 if(TIM_GetITStatus( TIM2,TIM_IT_CC1) != RESET)
 {
  TIM_ClearITPendingBit(TIM2,TIM_IT_CC1);
    capture = TIM_GetCapture1(TIM2);
   TIM_SetCompare1(TIM2,capture + 32767);
 }

}


 

Question 1: Why is my output not a 1:1 square wave, but a square wave with a duty cycle of 1:3?
Question 2: Why is my output frequency 183.1, that is, TIM2CLK = 36M, but when I change to PWM mode, the measured TIM2CLK = 72M? Is it because the TIM multiplier does not work in output comparison mode?

The problem is: TIM_OC1PreloadConfig(TIM2, TIM_OCPreload_Enable); //Enable TIMx preload register on CCR2
Because I am using comparison output and setting the frequency in the interrupt, I use the function TIM_SetCompare1(TIM2,capture + 32767) to change the value of the comparison register.
Therefore, when the preload register is enabled, the value of the compare register is reassigned every time an interrupt occurs, which conflicts with the frequency set in the interrupt.
So the solution is TIM_OC1PreloadConfig(TIM3, TIM_OCPreload_Disable).
In this way, one timer can be used to generate 4 square waves with different frequencies and different duty cycles. If there is anything wrong, I hope you can point it out.