关于定时器

myc123-187315

问一个很菜的问题，怎么使定时器输出口为普通I/O口，因为我发现关闭定时器后输出口为高电平

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Each TPM channel is associated with an I/O pin on the MCU. The function of this pin depends on the
configuration of the channel. In some cases, no pin function is needed so the pin reverts to being controlled
by general-purpose I/O controls. When a timer has control of a port pin, the port data and data direction
registers do not affect the related pin(s). See the Pins and Connections chapter for additional information
about shared pin functions.
这个是手册上说明的，大概意思是定时器不影响普通IO口的功能，可以设置IO口的方向和电平状态。