STM32定时器输出比较模式完全解读，毫秒级定时器配置

/* 定时器配置: 1.设置定时器最大计数值 50000 2.设置时钟分频系数：TIM_CKD_DIV1 3. 设置预分频： 1Mhz/50000= 1hz 4.定时器计数模式 向上计数模式 */ TIM_TimeBaseStructure.TIM_Period = 0xffff; TIM_TimeBaseStructure.TIM_Prescaler = 72; //1M 的时钟 TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1; TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; //应用配置到TIM3 TIM_TimeBaseInit(TIM3, &TIM;_TimeBaseStructure); // 使能TIM3重载寄存器ARR TIM_ARRPreloadConfig(TIM3, ENABLE);