电梯控制 记忆，上升下降停站 超载报警故障.....。

FPGA verilog 实现任意位宽的移位相乘法，有符号小数或者有符号整数相乘。函数调用方式(FPGA verilog achieve any bit-wide shift multiplication , signed or signed decimal integer multiplication . Function call )

基于CPLD的签到器的设计，用三维数组队人名进行储存-Based on the attendance CPLD design, a few team names with three-dimensional storage

cpld/fpga RS(204,188)译码器的verilog程序-cpld/fpga RS (204,188) decoder of the Verilog program

使用Verilog编写的时间同步模块，解决位同步问题，ISE12.2下编译通过(Time synchronization module written in Verilog, bit synchronization issues under ISE12.2 compiled by)

VHDL数字系统设计和工程实践2，包含原理，真值表和原理图，以及VHDL源代码.-VHDL digital system design and engineering practice, one that contains principles, truth table and schematic, as well as VHDL source code.

这是用verilog硬件描述语言编的5分频代码-This is verilog hardware description language code is compiled by five divider

本例程位于 VMD642_CPLD目录中。 使用 CPLD 实现辅助译码、LED 指示灯控制、看门狗等各种逻辑控制电路。源程序使 用 Verilog HDL书写，编译开发系统使用 Cypress公司的 Warp 6.3。(This routine is located VMD642_CPLD directory. Using CPLD implementation auxiliary decoding, LED indicator control, watchdog, and other logic control circuitry. Written using Verilog HDL source code, the compiler development system using Cypress' s Warp 6.3.)

任意数据发生器的源代码-arbitrary data source code generator

verilog program for real time clock.. select the .v file to view the code.

根据软件无线电的思想，提出了一种新颖的数字信号处理算法，对QPSK信号的相位进行数字化处理，从而实现对QPSK信号的解调.该算法允许收发两端载波存在频差，用数字锁相实现收发端载波的同步，在频偏较大的情况下，估算频偏的大小，自适应设置环路的带宽，实现较短的捕获时间和较好的信噪性能。整个设计基于XILINX公司的ISE开发平台，并用Virtex-II系列FPGA实现。用FPGA实现调制解调器具有体积小、功耗低、集成度高、可软件升级、扰干扰能力强的特点，符合未来通信技术发展的方向。(According to the idea of software radio, a novel digital signal processing algorithm, the phase of QPSK digital signal processing, enabling the demodulation of QPSK signals. This algorithm allows the sending and receiving ends of the carrier frequency difference exists, using digital phase-locked to achieve synchronization of sending and receiving end of the carrier, in the case of large frequency offset, frequency offset estimation of the size, adaptive set the loop bandwidth to achieve shorter acquisition time and better noise performance. The whole design is based on the company XILINX ISE development platform, and Virtex-II series with the FPGA. FPGA realization of a modem with a small size, low power consumption, high integration, software upgrades available, the characteristics of strong interference interference, in line with the future direction of ICT development.)