添加说明

.gitignore

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+*~
+build

LICENSE

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+MIT License
+
+Copyright (c) 2024 何亚红
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

ReadMe.md

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+# 说明
+
+扩展模块为电路设计的模板，对于基于MCU的模块，主要预定义一些引脚功能，作用与开发板类似。
+
+本扩展模块主要采用使用芯片:
+
+- [PY32F002BF15U6](https://www.puyasemi.com/py32_xilie/2712.html)
+
+注意:本扩展模块一般不直接使用，一般直接嵌入实际电路设计中
+
+# 目录结构
+
+- [HW](HW):硬件设计。