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/* 基础设置*/
TIM_TimeBaseStructure.TIM_Period = 65535;
TIM_TimeBaseStructure.TIM_Prescaler = 36-1;
TIM_TimeBaseStructure.TIM_ClockDivision = 0x0;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM4, &TIM_TimeBaseStructure);
/* 比较通道1*/
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_Toggle ; //翻转模式
TIM_OCInitStructure.TIM_OutputState=TIM_OutputState_Disable; //失能管脚输出
TIM_OCInitStructure.TIM_Pulse = CCR1_Val;
TIM_OCInitStructure.TIM_OCPolarity =TIM_OCPolarity_High; //极性
TIM_OC1Init(TIM4, &TIM_OCInitStructure);
TIM_OC1PreloadConfig(TIM4, TIM_OCPreload_Disable); //禁止OC1重装载,其实可以省掉这句,因为默认是4路都不重装的.
/*比较通道2 */
TIM_OCInitStructure.TIM_Pulse = CCR2_Val;
TIM_OC2Init(TIM4, &TIM_OCInitStructure);
TIM_OC2PreloadConfig(TIM4, TIM_OCPreload_Disable);
/*预先清除所有中断位*/
TIM_ClearITPendingBit(TIM4, TIM_IT_CC1 | TIM_IT_CC2 | TIM_IT_CC3 | TIM_IT_CC4);
/* 4个通道和溢出都配置中断*/
TIM_ITConfig(TIM4, TIM_IT_CC1 | TIM_IT_CC2 | TIM_IT_CC3 | TIM_IT_CC4, DISABLE);
/* 允许TIM4开始计数 */
TIM_Cmd(TIM4, ENABLE);
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