TIM_ITConfig(TIM3,TIM_IT_Update,ENABLE ); //使能指定的TIM3中断,允许更新中断 //初始化PWM模式 INITTIM_.TIM_OCMode = TIM_OCMode_PWM2; //模式为模式2 INITTIM_.TIM_OCPolarity = TIM_OCPolarity_High; //有效电平模式,此次为高电平 INITTIM_.TIM_OutputState = TIM_OutputState_Enable; INITTIM_.T...
STMx中PWM1和PWM2模式是时钟输出PWM波形控制的一个必选参数,使用库函数原型如下: void TIMx_OC2Init(TIM2_OCMode_TypeDef TIM2_OCMode, TIM2_OutputState_TypeDef TIM2_OutputState, uint16_t TIM2_Pulse, TIM2_OCPolarity_TypeDef TIM2_OCPolarity) 函数中的第一个参数TIM2_OCMode_TypeDef就是指定当前的 P...
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2; 那么TIM_OCMode_PWM1和TIM_OCMode_PWM2有什么区别呢? TIM_OCMode_PWM1PWM模式1 在向上计数时,一旦TIMx_CNT<TIMx_CCR1时通道1为有效电平,否则为无效电平 在向下计数时,一旦TIMx_CNT>TIMx_CCR1时通道1为无效电平(OC1REF=0),否则为有效 电平(OC1RE...
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2;//选择定时器模式,TIM脉冲宽度调制模式2 TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;//比较输出使能 TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low;//输出比较极性低 TIM_OC2Init(TIM3, TIM_OCInitStructure);//根据结构体信息进行...
uint16_t TIM_OCNPolarity; uint16_t TIM_OCIdleState; uint16_t TIM_OCNIdleState; 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 它有8个成员,而在我们PWM输出的实验中,我们只需要去配置它的4个成员: TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2; ...
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; TIM_OCInitStructure.TIM_Pulse = 0;//CCR TIM_OC1Init(TIM2, &TIM_OCInitStructure);通道已初始化;借用了GPIOA PA0口(见stm32f103...
TIM_OC_InitTypeDef sConfigOC = {0}; sConfigOC.OCMode = TIM_OCMODE_PWM2; // 选择PWM2模式 sConfigOC.Pulse = CCRx_Value; // 设置比较值 sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH; // 有效电平为高 sConfigOC.OCFastMode = TIM_OCFAST_DISABLE; ...
TIM_OCInitTypeStrue.TIM_OCMode=TIM_OCMode_PWM1;//PWM模式1,PWM模式2TIM_OC1Init(TIM3,&TIM_OCInitTypeStrue);//通道1初始化//预装载TIM_OC1PreloadConfig(TIM3,ENABLE);TIM_SetCompare1(TIM3,led0pwm);//每个端口的通道不一样 1 PWM通道 ...
TIM_OCMODE_PWM1 PWM输出模式1 TIM_OCMODE_PWM2 PWM输出模式2 TIM_OCMODE_FORCED_ACTIVE 不进行匹配,强制通道输出为有效电平 TIM_OCMODE_FORCED_INACTIVE 不进行匹配,强制通道输出为无效电平 PWM模式1:递增计数时,当TIMx_CNT (当前计数值) <TIMx_CCR (捕获/比较值) 时,通道输出为有效电平,否则为无效电平。
TIM_OCMode=TIM_OCMode_PWM1; //配置输出比较模式TIM_OCInitStructure.TIM_OCPolarity=TIM_OCPolarity_High; //指定输出极性TIM_OCInitStructure.TIM_OutputState=TIM_OutputState_Enable;//输出比较状态TIM_OCInitStructure.TIM_Pulse=0; //指定要捕获的脉冲值CCRTIM_OC1Init(TIM2,&TIM_OCInitStructure);//启用TIM2...