现在我需要4路PWM波，现在我是这样设置的，但是，只有一路可以输出，求大神帮忙看一下，这样设置2路PWM波，为什么只有F9有输出，F6没有输出？

void TIM14_PWM_Init(u32 arr,u32 psc)
{  

GPIO_InitTypeDef GPIO_InitStructure;
TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
TIM_OCInitTypeDef  TIM_OCInitStructure;

RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM14,ENABLE);   //TIM14?±??????    
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOF, ENABLE); //????PORTF?±??

GPIO_PinAFConfig(GPIOF,GPIO_PinSource9,GPIO_AF_TIM14); //GPIOF9???????¨?±?÷14

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;           //GPIOF9
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;        //????????
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz; //????100MHz
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;      //???ì????????
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;        //????
GPIO_Init(GPIOF,&GPIO_InitStructure);              //??????PF9
 
TIM_TimeBaseStructure.TIM_Prescaler=psc;  //?¨?±?÷·???
TIM_TimeBaseStructure.TIM_CounterMode=TIM_CounterMode_Up; //?ò??????????
TIM_TimeBaseStructure.TIM_Period=arr;   //×?????×°????
TIM_TimeBaseStructure.TIM_ClockDivision=TIM_CKD_DIV1; 

TIM_TimeBaseInit(TIM14,&TIM_TimeBaseStructure);//???????¨?±?÷14

//??????TIM14 Channel1 PWM????  
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; //?????¨?±?÷????:TIM?????í???÷??????2
  TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //±???????????
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low; //????????:TIM????±?????????
TIM_OC1Init(TIM14, &TIM_OCInitStructure);  //?ù??T???¨???????????????èTIM1 4OC1

TIM_OC1PreloadConfig(TIM14, TIM_OCPreload_Enable);  //????TIM14??CCR1?????¤×°???????÷
 
  TIM_ARRPreloadConfig(TIM14,ENABLE);//ARPE???? 

TIM_Cmd(TIM14, ENABLE);  //????TIM14
 
 
}  

void TIM10_PWM_Init(u32 arr,u32 psc)
{  
//????·??è????????IO???è??

GPIO_InitTypeDef GPIO_InitStructure;
TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
TIM_OCInitTypeDef  TIM_OCInitStructure;

RCC_APB1PeriphClockCmd(RCC_APB2Periph_TIM10,ENABLE);   //TIM14?±??????    
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOF, ENABLE); //????PORTF?±??

GPIO_PinAFConfig(GPIOF,GPIO_PinSource6,GPIO_AF_TIM10); //GPIOF9???????¨?±?÷14

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;           //GPIOF9
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;        //????????
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz; //????100MHz
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;      //???ì????????
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;        //????
GPIO_Init(GPIOF,&GPIO_InitStructure);              //??????PF9
 
TIM_TimeBaseStructure.TIM_Prescaler=psc;  //?¨?±?÷·???
TIM_TimeBaseStructure.TIM_CounterMode=TIM_CounterMode_Up; //?ò??????????
TIM_TimeBaseStructure.TIM_Period=arr;   //×?????×°????
TIM_TimeBaseStructure.TIM_ClockDivision=TIM_CKD_DIV1; 

TIM_TimeBaseInit(TIM10,&TIM_TimeBaseStructure);//???????¨?±?÷14

//??????TIM14 Channel1 PWM????  
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; //?????¨?±?÷????:TIM?????í???÷??????2
  TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //±???????????
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low; //????????:TIM????±?????????
TIM_OC1Init(TIM10, &TIM_OCInitStructure);  //?ù??T???¨???????????????èTIM1 4OC1

TIM_OC1PreloadConfig(TIM10, TIM_OCPreload_Enable);  //????TIM14??CCR1?????¤×°???????÷
 
  TIM_ARRPreloadConfig(TIM10,ENABLE);//ARPE???? 

TIM_Cmd(TIM10, ENABLE);  //????TIM14
 
 
}