STM32定时器PWM
时间: 2023-10-23 09:04:34 浏览: 90
STM32定时器可以用来产生PWM输出。除了基本定时器TIM6和TIM7外,其他定时器都支持PWM输出。每个通用定时器(TIM2、TIM3、TIM4、TIM5)可以同时产生4路PWM,而高级定时器(TIM1、TIM8)可以同时产生多达7路PWM。 PWM是脉冲宽度调制的缩写,通过对一系列脉冲的宽度进行调制,等效出所需要的波形,对模拟信号电平进行数字编码。 STM32定时器产生的PWM输出是方波信号,可以调整脉冲的宽度(占空比)和频率。占空比由比较寄存器CCR的值决定,而频率由自动重装寄存器ARR的值决定。 总结来说,通过配置STM32定时器的计数值和比较寄存器的值,可以实现所需的PWM波形输出。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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