protel fpga library a popular package is very difficult to find the

FPGA控制RS232来实现串口通信，非常好的串口程序。(FPGA control RS232 serial communication to achieve very good serial procedures.)

NiosII_Exercises_Ver3,this niosII 3.o for cyclone

VHDL上机手册（基于Xilinx ISE） ___________________________________________________ 1 ISE 软件的运行 2 创建一个新工程 3 创建一个VHDL源文件框架 4 输入VHDL程序 *5 仿真 6 创建Testbench波形源文件 7 设置输入仿真波形 -eda

bpsk qpsk 16qam 64qam的constellation(bpsk qpsk 16qam 64qam constellation)

xilinx ddr3最新VHDL代码,通过调试(xilinx ddr3 latest VHDL code through debugging)

潘松编写的EDA书籍！学习FPGA的好帮手！-Pinson prepared by the EDA books! Learning FPGA a good helper!

The Hilbert Transform is an important component in communication systems, e.g. for single sideband modulation/demodulation, amplitude and phase detection, etc. It can be formulated as filtering operation which makes it possible to approximate the Hilbert Transform with a digital filter. Due to the non-causal and infinite impulse response of that filter, it is not that easy to get a good approximation with low hardware resource usage. Therefore, different filters with different complexities have been implemented. The detailed discussion can be found in "Digital Hilbert Transformers or FPGA-based Phase-Locked Loops" (http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4629940). The design is fully pipelined for maximum throughput.

A BLIF to VHDL converter (51K compressed tar, with SunOS, Solaris, and Linux binaries. Source code (C++) included).

一个用VHDL编程基于CPLD的EDA实验板开发可以实现顺计时和倒计时的秒表。要求计时的范围为00.0S~99.9S，用三位数码管显示。 （1） 倒计时：通过小键盘可以实现设定计时时间（以秒为单位，最大计时时间为99.9秒）。通过键盘实现计时开始、计时结束。当所设定的倒计时间到达00.0S后，自动停止倒计时，同时响铃。 （2） 顺计时：初始值为00.0S，通过键盘实现开始计时和结束计时功能。计时结束后，显示记录的时间。 （3） 用三个发光二极管正确显示以下状态：倒计时状态、顺计时状态、待机状态。 （4） 每当接收到有效按键时，蜂鸣器发出提示声。 顺计时在一次计时中可以记录三个不同的结束时间，并能通过按键显示三次所记录的时间。 -err

VHDL学习手册-VHDL study manual