Examples of VHDL language, including a variety of logic gate structure.

HART 官方资料-HART协议采用基于Bell202标准的FSK频移键控信号，在低频的4-20mA模拟信号上叠加幅度为0.5mA的音频数字信号进行双向数字通讯，数据传输率为1.2kbps。(Official information-HART HART protocol based Bell202 standard frequency shift keying FSK signal at low frequencies 4-20mA analog signal amplitude is 0.5mA superimposed on the two-way audio digital signal digital communication, data transfer rate of 1.2kbps.)

PCI Arbitor by VHDL -PCI Arbitor by VHDL

shift register. vhdl verilog

简单的单周期CPU设计，实现的指令有：算术运算指令、逻辑运算指令、移位指令、比较指令、存储器读/写指令、分支指令、跳转指令、停机指令。(Simple single-cycle CPU design,The instructions implemented are as follows:Arithmetic operation instruction, logical operation instruction, shift instruction, comparison instruction, memory read/write instruction, branch instruction, jump instruction, stop instruction.)

说明：  实现了QPSK的调制，使用了ise自带的dds的IP核(QPSK is modulated and the IP core of DDS is used in ise.)

开发工具是quartus II 7.0以上版本，这是一个verilog语言的分频器设计，个人作业设计，供参考学习(verilog，quartus II 7.0)

用vhdl实现24小时计数器，方法简单实用。 仿真环境MAXPLUS--use VHDL to achieve 24-hour counter, simple and practical method. Simulation environment Segments-

this program performs multiplexing and demultiplexing

FPGA讲义适合中等以上读者，主要是FPGA的一些高级应用-FPGA notes for readers more than moderate, mainly a number of advanced applications FPGA

基于Xilinx FPGA实现PS2键盘鼠标接口。版本1.0-Based on Xilinx FPGA realize PS2 keyboard and mouse interface. Version 1.0