V1.0c - race-condition bug fixies, small optimization

What's Changed

• Small optimization of code & Fix of memset_v by @rinscr3003 in #2
• bug fixes & memory optimization by @rinscr3003 in #3

Full Changelog: V1.0b...V1.0c

V1.0b - Adaptation for 5V level, License changed

Due to some license issues, we changed the license of code in this project which were developed by ourselves from previous GPLv3 to current MPL-2.0. See README for more information.

由于一些许可证问题，我们将此项目中由我们开发的代码的许可证由GPLv3变更为MPL-2.0。详情请参见README。

About binary file distribution

The precompiled firmware files we provide (CheapLink_X033.hex and CheapLink_X033.bin) are a combination of multiple code sections. Therefore, the use of this binary file must comply with the license terms of MPL-2.0, Apache License 2.0, MIT License, and WCH simultaneously. The most important point is that this firmware can only be used to run on microcontrollers produced by WCH.

关于二进制文件分发

我们提供的预编译固件文件 (CheapLink_X033.hex 和 CheapLink_X033.bin) 是多部分代码的组合。因此，使用此二进制文件必须同时遵守MPL-2.0、Apache License 2.0、MIT License和WCH的许可证条款。最重要的一点是，此固件仅可用于在WCH生产的微控制器上运行。

V1.0a - First release, supports CMSIS-DAP & CDC serial

This version had not been fully, widely, constantly tested, so use at your own risk.

Full Changelog: V0.1a...V1.0a

V0.1a - Preliminary version, supports CMSIS-DAP interface only

Full Changelog: https://github.com/WuxiProject-offical/CheapLink_X033/commits/V0.1a

This version does not contain CDC support.
This version had not been fully, widely, constantly tested, so use at your own risk.