TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable; TIM_OCInitStructure.TIM_Pulse = ccr1; TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_Low;//输出同相,TIM_OCNPolarity_High时输出反相 TIM_OCInitStructure.TIM_OCIdleState = TI...
TIM_OCMODE_PWM1; sConfigOC.Pulse = 1; sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH; sConfigOC.OCNPolarity= TIM_OCNPOLARITY_HIGH; sConfigOC.OCFastMode = TIMOCFAST_DISABLE; sConfigOC.OCIdleState = TIM_OCIDLESTATE_RESET; sConfigOC.OCNIdleState = TIM_OCNIDLESTATE_RESET; /* 配置PWM...
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; // 互补输出通道电平极性配置 TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_High; // 输出通道空闲电平极性配置 TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Set; // 互补输出通道空闲电平极性配置 TIM_OCInitStructure.TIM_OCNIdleState...
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...
//启动TIM1 RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE); //GPIO做相应设置,为AF输出 //PA8,PB13一组互补输出 A9,PB14一组互补输出 //PA.8/9口设置为TIM1的OC1输出口 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9; ...
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_OCIdleState = TIM_OCIdleState_Reset ; TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low ; //输出极性...
”空闲状态“是指CR2寄存器中对应位所规定的0(低电平)和1(高电平)。这里所谓的空闲(idle)的意思,就是指MOE = 0 时的状态; 顺便看看这个CR2寄存器中OIS1N位的描述 图5 ”经过死区时间后OC1N= 0/1",为何这里要强调经过死区时间后OC1N才变为他的“空闲电平”呢?我们可以从中文参考手册14.3.11互补输出和死区...
TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCIdleState_Reset;//先不管 TIM_OC1Init(TIM1,&TIM_OCInitStructure); //数初始化外设TIMx通道1这里2.0库为TIM_OCInit /* TIM1 counter enable开定时器 */ TIM_Cmd(TIM1,ENABLE); /* TIM1 Main Output Enable 使能TIM1外设的主输出*/ ...
uint16_t TIM_OCNPolarity; /*比较互补输出极性, 可选OCxN为高电平有效或低电平有效。 设定TIMx_CCER寄存器的CCxNP位的值。*/ uint16_t TIM_OCIdleState; /*空闲状态时,通道输出电平设置, 可选输出1或输出0, 即在空闲状态(BDTR_MOE位为0)时, ...
高级控制定时器(TIM1和TIM8)和通用定时器在基本定时器的基础上引入了外部引脚,可以实现输入捕获和输出比较功能。高级控制定时器比通用定时器增加了可编程死区互补输出、重复计数器、带刹车(断路)功能,这些功能都是针对工业电机控制方面。这几个功能在本书不做详细的介绍,主要介绍常用的输入捕获和输出比较功能。