it is a new describng system for it field

i2c core : i2c master top

开源的ULPI IP核，可用于USB3300芯片的开发(openSource ULPI IP core which could be used for USB3300 chip development)

E1成帧器和解帧器的FPGA实现源码，测试可用(E1 Framer deframer)

de2 vga控制器，也可用于其他板子开发-de2 vga controller board can also be used for other development

multisim 程序 使用教程 详细明了清楚(multisim tutorial program uses more clearly understand)

The use of FPGAs for cryptographic applications is highly attractive for a variety of reasons but at the same time there are many open issues related to the general security of FPGAs. This contribution attempts to provide a state-of-the-art description of this topic. First, the advantages of reconfigurable hardware for cryptographic applications are discussed from a systems perspective. Second, potential security problems of FPGAs are described in detail, followed by a proposal of a some countermeasure. Third, a list of open research problems is provided. Even though there have been many contributions dealing with the algorithmic aspects of cryptographic schemes implemented on FPGAs, this contribution appears to be the first comprehensive treatment of system and security aspects.

通过UART从PC主机读取图片数据，并完成图片在VGA显示器上的显示-through UART from the host PC to read image data, and complete picture of the VGA display on the show

程序在报告中，要　用QuartusII运行，注意从word到运行环境中，可能有个别符号不兼容，重新在运行环境中输入那些符号就可以了-procedures in the report, with QuartusII operations, the attention to word from the operating environment, Some individual symbols are not compatible, the operating environment to re-enter those symbols on the

基于VHDL语言的波形发生器编程设计，能够实现常用波形的产生。(Waveform generator design based on VHDL programming, to achieve common waveform generated.)