本设计可直接用作时钟计数器

本程序是锁相环的仿真程序，具有接收端载波同步的功能。注释详尽，程序规范。发端的调制方式有单载波调制，BPSK调制，QPSK调制可供选择。程序中有星座图，锁相环的频差、相差图，以及解调后的基带波形。(This program is a phase-locked loop simulation program, the with carrier synchronization receiving end function. Notes detailed program specifications. The originator of the modulation scheme to choose a single carrier modulation, BPSK modulation, QPSK modulation. Program constellation diagram, the PLL frequency difference, a difference of FIG, and the demodulated baseband waveform.)

本verilog代码通过IIC总线实现了对 PCF8591AD、DA转换芯片的控制。适用于FPGA，亲测可用。(this is used for FPGA to control PCF8591(AD/DA) chip by verilog.)

电子密码锁的vhdl编程实现，不知以前有没有人做过的。-electronic locks VHDL programming, I wonder if the past is not done.

一个32位元的浮点数加法器，可将两IEEE 754格式内的值进行相加(A 32-bit floating-point adder can be both within the IEEE 754 format to add value)

本程序是在Quartus7.2环境下编译的一个简单的(2,1,3)卷积码，能够成功地编译和仿真。(This procedure is in circumstances Quartus7.2 compile a simple (2,1,3) convolutional code, can successfully compile and simulation.)

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

FPGA编写的三角波发生器，可以产生100HZ～500KHZ以上的三角波，波形稳定(FPGA prepared triangular wave generator, can produce more than 100HZ ~ 500KHZ triangle wave, waveform stability)

一个简单的用verilog实现的售货机状态机设计，内有word介绍设计的原理(A simple realization of a vending machine with verilog state machine design, there are design principles introduced word)

用于实现上位机与下位机之间通过RS232协议来进行通讯。(It is used to realize communication between upper computer and lower computer through RS232 protocol.)

低频数字式相位测量仪 使用的VHDL语言，在MUXPLUS2环境下使用！ (digit hpase detecter use for low-frequence)