very goooooooooood!

https://github.com/RT-Thread/rt-thread/blob/master/components/drivers/include/drivers/rt_inputcapture.h

Please pay attention to the red box.

This components TAB only adds our driver framework to it.the actual underlying driver implementation is in the Hardware TAB.

If not, then you need to implement the underlying driver yourself.

Very good! RT-Thread is an IoT operating system that allows you to quickly connect to the Internet using our open source software package.you can check out our package center.

enter link description here

The only available packages for RT-Thread are https://github.com/RT-Thread-packages/nimble .Currently only NODIC NRF52832 MCU is supported.