梦月之心 发表于 2017-9-21 13:34:26

请大神帮我分析一下，这段程序没错误但是引脚没输出

void TIM1_GPIO_Config(void)
{
//PE 8 9 10 11 12 13 14??
GPIO_InitTypeDef GPIO_InitStructure;
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOE,ENABLE);
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11
                              | GPIO_Pin_12 | GPIO_Pin_13 | GPIO_Pin_14;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_Init(GPIOE,&GPIO_InitStructure);

GPIO_PinAFConfig(GPIOE,GPIO_PinSource8,GPIO_AF_TIM1);
GPIO_PinAFConfig(GPIOE,GPIO_PinSource9,GPIO_AF_TIM1);
GPIO_PinAFConfig(GPIOE,GPIO_PinSource10,GPIO_AF_TIM1);
GPIO_PinAFConfig(GPIOE,GPIO_PinSource11,GPIO_AF_TIM1);
GPIO_PinAFConfig(GPIOE,GPIO_PinSource12,GPIO_AF_TIM1);
GPIO_PinAFConfig(GPIOE,GPIO_PinSource13,GPIO_AF_TIM1);
GPIO_PinAFConfig(GPIOE,GPIO_PinSource14,GPIO_AF_TIM1);
}
void Tim1_Config(void)
{
        //TIM_TimeBaseInitTypeDefTIM_TimeBaseStructure;
        TIM_TimeBaseInitTypeDefTIM_TimeBaseInitStructure;
TIM_OCInitTypeDefTIM_OCInitStructure;
        //TIM_BDTRInitTypeDef TIM_BDTRInitStructure;
       
uint16_t TimerPeriod,ccr1,ccr2,ccr3,ccr4;
        TimerPeriod =(SystemCoreClock / 20000 ) - 1;
ccr1 = TimerPeriod / 2;//???1/2 = 50%
ccr2 = TimerPeriod / 3;//???1/3 = 33%
ccr3 = TimerPeriod / 4;//???1/4 = 25%
ccr4 = TimerPeriod / 5;//???1/5 = 20%

RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1,ENABLE);
//?????
TIM_TimeBaseInitStructure.TIM_ClockDivision = TIM_CKD_DIV1;
TIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up;//?????
TIM_TimeBaseInitStructure.TIM_Prescaler = 0;   //Timer clock = sysclock /(TIM_Prescaler+1) = 168M
TIM_TimeBaseInitStructure.TIM_RepetitionCounter = 0;
TIM_TimeBaseInitStructure.TIM_Period = TimerPeriod - 1;    //Period = (TIM counter clock / TIM output clock) - 1 = 20K
TIM_TimeBaseInit(TIM1,&TIM_TimeBaseInitStructure);


TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable;
TIM_OCInitStructure.TIM_Pulse = ccr1;
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCPolarity_High;
TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Set;
TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCNIdleState_Reset;

TIM_OC1Init(TIM1,&TIM_OCInitStructure);

TIM_OCInitStructure.TIM_Pulse = ccr2;
TIM_OC2Init(TIM1,&TIM_OCInitStructure);

TIM_OCInitStructure.TIM_Pulse = ccr3;
TIM_OC3Init(TIM1,&TIM_OCInitStructure);

TIM_OCInitStructure.TIM_Pulse = ccr4;
TIM_OC4Init(TIM1,&TIM_OCInitStructure);

TIM_Cmd(TIM1,ENABLE);
TIM_CtrlPWMOutputs(TIM1,ENABLE);
}
/*********************************************END OF FILE**********************/
int main(void)
{
        TIM1_GPIO_Config();
        Tim1_Config();
}



党国特派员 发表于 2017-9-21 15:26:28

没有写while(1),程序就一直复位。。。

斜阳__ 发表于 2017-9-21 15:59:26

遇到萌新了:lol:lol:lol:lol

梦月之心 发表于 2017-9-21 16:36:13

党国特派员 发表于 2017-9-21 15:26
没有写while(1),程序就一直复位。。。

好的，我试试

梦月之心 发表于 2017-9-21 16:36:30

斜阳__ 发表于 2017-9-21 15:59
遇到萌新了

求解

梦月之心 发表于 2017-9-21 16:42:55

党国特派员 发表于 2017-9-21 15:26
没有写while(1),程序就一直复位。。。

不是这里的问题

斜阳__ 发表于 2017-9-21 19:02:19

梦月之心 发表于 2017-9-21 16:36
求解

TIM时钟启动了么？

梦月之心 发表于 2017-9-22 13:00:28

斜阳__ 发表于 2017-9-21 19:02
TIM时钟启动了么？

弄好了，谢谢
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