用于fpga学习，共同分享学习经验和交流学习心得

agilex fpga description

直接频率合成，Quicklogic提供,部分源文件是Quicklogic 专用文件-direct frequency synthesis, pioneered provide some source document is dedicated ESP

设计制作一个可容纳4组参赛者的数字智力抢答器，每组设置一个抢答按键； 电路具有一第一抢答信号的鉴别和锁存的功能。在主持人将系统复位并发出抢答指令后，若参加者按抢答键，则该组指示灯亮并用组别显示抢答者的组别。此时，电路具有自锁功能，使别组的抢答开关不起作用。 设置计分电路。每组在开始时预置成6分，抢答后主持人计分，答对一次加1分。(The design can accommodate a the Entrants digital intellectual Responder, each set answer in a key circuit has a first answer in the signal to identify and latch functions. Host to the system reset and sent the answer in instruction, participants answer in key, the group of the group light and display the answer in the group. At this point, the circuit has a self-locking function does not work in other groups to answer switch. Set Scoring circuit. Preset six points each at the beginning of the answer in scoring after the host, answer time, add 1 point.)

This rar files contains the presentation about FPGA and CPLD .

New files for pudn website

说明：  altera发布的开源8b10b源代码，vhdl语言描述(altera released the source code open source 8b10b, vhdl language description)

LTE上行链路使用的DFT-S-OFDM系统的仿真，其中包括QPSK星座映射、串并转换、N点DFT、子载波映射等。(LTE uplink using the DFT-S-OFDM system simulation, including QPSK constellation mapping, string and conversion, N-point DFT, subcarrier mapping, etc..)

这是一个项目，设计一个计数器和 vhdl 语言文本液晶屏上显示。为了文本液晶屏上显示我们都用 vhdl 语言设计了液晶显示控制器。

基于单片机的DDS信号发生器，具有DDS思想的单片机编程。。。(Sunplus based DDS signal generator with DDS thinking microcontrollers. . .)

这段代码是用来实现二维高斯滤波器的。