51.4. PWM波移相

51.4.1. 概述

pwm 支持输出波形相位移动功能。该实例展示了在接收到外部触发输入时，对pwm波进行移相的操作。

51.4.2. 配置

• 示波器

• 安装串口终端，查看 板子信息 并配置串口终端参数

• PWM_P0,PWM_P2 根据板子型号查看具体信息

51.4.3. 运行

• 上电后，P0和P2输出同相位的波形，每3秒钟，P2的相位会移动10度，第一次变化相差60度

• 串口打印如下信息:

pwmv2 two pwm submodule phase sync example
choose PWM output channel [P0 P2]


>> P0 and P2 generate same phase firstly
Two waveforms will be generated
Please press trigger pin, P2 phase will shift
P0 is a reference

P0 and P2 now have a phase difference of 60 degrees

P0 and P2 now have a phase difference of 70 degrees

P0 and P2 now have a phase difference of 80 degrees

P0 and P2 now have a phase difference of 90 degrees

P0 and P2 now have a phase difference of 100 degrees
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