串口通信，建了两个线程，一个线程接受，一个线程发送，能够发送10M以上的大文件-Built two threads, serial port communication, a thread, a thread to send, can send more than 10 m large files

此文件是关于串口通信的内容，能实现DSP、单片机等SCI串口的通信。-This material is related to seria port communication. It can used on DSP or Single chip microcomputer.