STM32F407ZGT6如何设置多路PWM波输出

我心永恒 · 发表于 2015-8-12 13:24:02

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

}