TIMER输出PWM基本概念

脉冲宽度调制(PWM)，是英文“Pulse Width Modulation”的缩写，简称脉宽调制，是利用微处理器的数字输出来对模拟电路进行控制的一种非常有效的技术。简单一点，就是对脉冲宽度的控制。一般用来控制步进电机的速度等等。STM32的定时器除了TIM6和TIM7之外，其他的定时器都可以用来产生PWM输出，其中高级定时器TIM1和TIM8可以同时产生7路的PWM输出，而通用定时器也能同时产生4路的PWM输出。

-Timer output PWM basic concept of pulse width modulation (PWM), is the abbreviation of the English " Pulse Width Modulation" , referred to as pulse width modulation, is a very effective technique to the analog circuitry for controlling the use of the digital output of the microprocessor. Simple point, that is, the pulse width control. Generally used to control the speed of the stepper motor, and so on. STM32 timer addition to outside TIM6 and TIM7, other timers can be used to generate the PWM output Senior timer TIM1 and TIM8 7 road PWM output, general purpose timers can simultaneously produce 4-way PWM output.