update boards doc

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hathach 2019-10-24 12:07:37 +07:00
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# Boards
The board support code is only used for self-contained examples and testing. It is not used when TinyUSB is part of a larger project. It is responsible for getting the MCU started and the USB peripheral clocked with minimal of on-board devices
- One LED for status
- One Button to get input from user
- One UART optionally, mostly for host examples
- One LED : for status
- One Button : to get input from user
- One UART : optional for device, but required for host examples
## Supported Boards