void TIM_OC1Init(TIM_TypeDef* TIMx, TIM_OCInitTypeDef* TIM_OCInitStruct); //用来配置输出比较模块 void TIM_OC2Init(TIM_TypeDef* TIMx, TIM_OCInitTypeDef* TIM_OCInitStruct); void TIM_OC3Init(TIM_TypeDef* TIMx, TIM_OCInitTypeDef* TIM_OCInitStruct); void TIM_OC4Init(TIM_TypeDef* TIMx, ...
TimOCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; //设置占空比,占空比=(CCRx/ARR)*100%或(TIM_Pulse/TIM_Period)*100% TimOCInitStructure.TIM_Pulse = dutyfactor * 7200 / 100; //TIM输出比较极性高 TimOCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; //使能输出状态 TimOCInitStructure.TIM_Outpu...
TIM_CounterMode=TIM_CounterMode_Up;//计数模式TIM_TimeBaseInitStrue.TIM_ClockDivision=TIM_CKD_DIV1;//时钟系数TclkTIM_TimeBaseInit(TIM3,&TIM_TimeBaseInitStrue);//初始化比较函数TIM_OCInitTypeStrue.TIM_OCMode=TIM_OCMode_PWM2;//PWM模式1TIM_OCInitTypeStrue.TIM_OCNPolarity=TIM_OCNPolarity_High;...
stm32固件库的输出比较单元结构体与定时器的时基单元是分开定义的,而PWM模式只是输出比较结构体成员TimOCInitStructure.TIM_OCMode的一个取值,当把此结构体填充完后,还要映射到某个定时器,用TIM_OCXInit函数实现,我用了一个X,说明不止一个这样的函数,事实上,stm32的通用定时器都有四个通道,每个通道对应一个初始化...
TIM_ClockDivision = TIM_CKD_DIV1; // 时钟分频因子为1 TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; // 向上计数模式 HAL_TIM_Base_Init(&TIM_TimeBaseStructure); // 初始化定时器基础参数 TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; // 输出模式为PWM1 TIM_OCInitStructure....
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;//设置PWM模式1 TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;//比较输出使能 TIM_OCInitStructure.TIM_Pulse = 0; // TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;//输出极性为高 ...
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_Pulse = 500; TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; //输出极性:TIM输出比较极性高 ...
sConfigOC.OCMode = TIM_OCMODE_PWM1; sConfigOC.Pulse = 499; // 50% duty cycle sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH; sConfigOC.OCFastMode = TIM_OCFAST_DISABLE; HAL_TIM_PWM_ConfigChannel(&htim2, &sConfigOC, TIM_CHANNEL_1); ...
函数中的第一个参数TIM2_OCMode_TypeDef就是指定当前的 PWM波形模式是PWM1或PWM2,关于这两者的区别通俗点讲就是: PWM1中空控制的是高电平的占空比,外接LED的时候灯光是随着TIMx_SetComparex()函数中占空比的 增大由最亮逐渐变最暗,当达到100%的占空比的时候最暗。
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...