序列号，用于对vmware workstations 12Pro的激活(Serial number for activation of VMware workstations 12Pro)

利用51单片机实现与电脑串口通信，同时利用偶校验(Using 51 single-chip microcomputer to communicate with the computer serial port, while using parity check)

成功移植了contiki操作系统的代码，编译在keil5下编译生成HEX文件下载到STM32即可实现LED闪烁与串口打印功能。(The code of Contiki operation system is successfully transplanted, compiled and compiled under keil5, and HEX files are downloaded to STM32 to achieve LED scintillation and serial port p