可以用于各种并口方式(SPP,EPP,ECP)的读写测试。-can be used in various ways parallel port (SPP, EPP, and ECP) literacy test.

包含调制和解调：1、可输入数字基带信号进行各种参数、各种方式的调制程序，也可读入调制数据。2、对自调制数据或读入的文件调制数据进行调制方式和调制方式的分析，适合正在学习调制解调的人员使用，通过单步运行，详细了解各种调制与解调的原理及工程实现-Include modulation and demodulation: 1, enter the digital baseband signal parameters, the modulation process in various ways, but

The .m file simulates a Spread-Spectrum Modulation Trx/Rcx system, in which, the phase of the pseudo-random sequence generated in the transmitter and used to encode the data stream is unknown a priory at the receiver.A parallel search strategy is emp

USB的控制台代码，可以方便的理解USB传输的各种方式，以及ioctl的用法-USB console code, you can easily understand the various ways in USB transfer, and use the ioctl