主要介绍了ＦＰＧＡ设计的基本原则、基本设计思想、基本操作技巧、常用模块。...

《精彩51单片机教程》适合初学者，很难得(" Discover the 51 SCM Guide" for beginners, very rare)

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.)

FPGA的SRAM存储器的控制程序，包括时序测试-FPGA

说明：  基于fpga的计数器模块 分频 可移植 完美实现(Perfect realization of frequency division and portability of counter module based on FPGA)

芯片ad0809与da0832的实现程序-ad0809 chip with the realization procedures da0832

design and implement a digital system on the Altera NIOS board which will read an analogue input using MicroChip’s SPI MCP3202 12-Bit A/D converter. The 8 most significant bits of the converted data will be displayed on two seven segments of the NIOS development board. The sampling frequency is 20kHZ. Use a potentiometer.(design and implement a digital system on the Altera NIOS board which will read an analogue input using MicroChip' s SPI MCP3202 12-Bit A/D converter. The 8 most significant bits of the converted data will be displayed on two seven segments of the NIOS development board . The sampling frequency is 20kHZ. Use a potentiometer.)

本代码为简单AXI接口控制模块，具备数据的读写等传输功能，对总线传输学习者来说是很好的学习资料，可在此代码基础上进行更复杂功能接口的模块的开发。

应用背景此应用程序是用Xilinx ISE 12.4，使用VHDL语言进行。本程序的目的是提供一个显示的接口方法的七段显示。用户将可以看到从0到9999的一个计数器，它运行在利用FPGA内部的时钟实时。享受它。关键技术现场可编程门阵列（FPGA）是半导体器件是基于一个可配置逻辑块（CLB）连接矩阵通过可编程互连。FPGA可编程所需的应用或功能要求后制造。这功能区分FPGA从特定应用集成电路（ASIC），这是制造的特定设计定制任务。虽然一次性可编程（OTP）FPGA，这主要类型是基于SRAM的可重新编程的设计演变。

HDB3 encoder and decoder(HDB3 decoer)

该PPT是一个内部教学资料，想学习EDA技术的朋友可以看看这个教学资料。-The PPT is an internal teaching materials, want to learn EDA technologies friends can look at the teaching and learning materials.