RS232

说明：  串口通信简单的，易懂适合小白，底层开始做(serial communication)

计算机通过串口向开发板发送数据，开发板将数据原样送回。(The computer through the serial port to send data to the development board, development board will be sent back to the data as is.)

QT串口通信中用到第三方库实现串口编程的例子(QT third-party libraries used in serial communication serial programming examples)

通过读取PLC的opcserver中的数据并将数据上传至服务器，通过串口发给GPRS模块(By reading the PLC opcserver data and upload the data to the server, through the serial port to the GPRS module)

串口发送接收数据，初学者可以参考参考， - - ~(串口发送接收数据，初学者可以参考参考，-- ~)

8155扩展程序，可以进新键盘和数码显示的扩展，是一个不错的源代码(8155 expansion procedures, can enter the new keyboard and the expansion of the digital display, is a good source)

标准串口和模拟串口4位164动态数码管显示程序 1.CPU ：89C51 晶振2MHz 2.在proteus上仿真通过 3. 测试时将部分语句屏蔽 (Standard serial and analog serial 4 164 dynamic digital tube display program 1.CPU: 89C51 crystal 2MHz 2. The proteus simulation through 3 will be part of the statement shield test)

说明：  很多下位机程序员都有这样的经历，在交付工程的时候对方要求提供源程序，而大多数下位机程序员都知道交出源程序是意味着什么，所以为了保护各位下位机程序员的合法利益.这个工具，伪装过后的源程序可以编译通过。(many lower computer programmers have the same experience that the delivery of the other works on the request source, and most of the next crew to surrender programmers are aware of what it means to the source, Therefore, in order to protect you and lower computer programmer's legitimate interests. this tool, camouflage after the source compile.)

ofdm系统模型,包含信道估计 FFT变换 QPSK 16QAM调制 插入导频等,非常全面,(The ofdm system model, including channel estimation, FFT transform, QPSK 16QAM modulation, insertion pilot, etc., is very comprehensive.)

CPU于MCU通过串口传输，增加IO辅助，避免漏传数据(CPU to MCU serial transmission through increased IO assistance, to prevent leakage of data transfer)