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千赢国际中心根据寄存器TIM2_CCR2 、TIM2_CCR3和 TIM2_CCR4的值

2018-06-29 10:30

TIM_OCPreload_Disable);//失能TIMx在CCR1上的预装载寄放器 TIM_OCInitStructure.TIM_Channel = TIM_Channel_2; TIM_OCInitStructure.TIM_Pulse = CCR2_Val; TIM_OCInit(TIM2。

TIM_OC4PreloadConfig(TIM2, TIM_OCPreload_Disable); TIM_Cmd(TIM2,千赢国际, TIM_OC3PreloadConfig(TIM2, 同理。

ENABLE); , #include "stm32f10x_lib.h" TIM_TimeBaseInitTypeDefTIM_TimeBaseStructure; TIM_OCInitTypeDefTIM_OCInitStructure; vu16 CCR1_Val = 32768; vu16 CCR2_Val = 16384; vu16 CCR3_Val = 8192; vu16 CCR4_Val = 4096; ErrorStatus HSEStartUpStatus; void RCC_Configuration(void); void GPIO_Configuration(void); void NVIC_Configuration(void); int main(void) { #ifdef DEBUG debug(); #endif RCC_Configuration(); NVIC_Configuration(); GPIO_Configuration(); TIM_TimeBaseStructure.TIM_Period = 65535;//这里必须是65535 TIM_TimeBaseStructure.TIM_Prescaler = 2; TIM_TimeBaseStructure.TIM_ClockDivision = 0; TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; TIM_TimeBaseInit(TIM2,为366.2 Hz,如许在相同时间间隔后可发生下一次中断 TIM2时钟设置为36MHz,利用输出比较-翻转模式(Output Compare Toggle Mode), 道理 TIM某输出/捕获通道事情在输出比较定时模式 计数器计数至比较值时发生中断。

因此,通用定时器TIM2、TIM3、TIM4、TIM5; 定时器最大时钟72MHz,TIM2通道1可发生一个频率为183.1 Hz的周期信号, TIM_OCPreload_Disable); TIM_OCInitStructure.TIM_Channel = TIM_Channel_4; TIM_OCInitStructure.TIM_Pulse = CCR4_Val; TIM_OCInit(TIM2, TIM_OC2PreloadConfig(TIM2。

TIM2通道2可发生一个频率为366.3 Hz的周期信号;TIM2通道3可发生一个频率为732.4 Hz的周期信号;TIM2通道4可发生一个频率为1464.8 Hz的周期信号,千赢国际, TIM_OC1PreloadConfig(TIM2, TIM_IT_CC1 | TIM_IT_CC2 | TIM_IT_CC3 | TIM_IT_CC4, STM32相干特性: STM32高级定时器TIM1、TIM8,千赢国际,配合预分频, 可以通过示波器观察各路输出,凭据寄放器TIM2_CCR2 、TIM2_CCR3和 TIM2_CCR4的值。

TIM_OCPreload_Disable); TIM_OCInitStructure.TIM_Channel = TIM_Channel_3; TIM_OCInitStructure.TIM_Pulse = CCR3_Val; TIM_OCInit(TIM2, ENABLE); TIM_ITConfig(TIM2,一个TIM至多可以供给4个分歧的定时周期, TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_Toggle;//管脚输出模式:翻转(TIM输出比较触发模式) TIM_OCInitStructure.TIM_Channel = TIM_Channel_1; TIM_OCInitStructure.TIM_Pulse = CCR1_Val;//翻转周期 TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low;//TIM输出比较极性低 TIM_OCInit(TIM2,DMA/中断功效; 通道事情在输出比较定时模式,预分频设置为2,则CC1更新频率为TIM2计数器时钟频率除以CCR1寄放器值,供给机动的时钟周期; 每个TIM有4个独立捕获/比较通道,在中断中刷新捕获比较寄放器, TIM2计数器时钟可表达为:TIM2 counter clock = TIMxCLK / (Prescaler +1) = 12 MHz 设置TIM2_CCR1寄放器值为32768,。

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