I2C的VHDL源码，从机模式，编译通过。

The aim of the ECG simulator is to produce the typical ECG waveforms of different leads and as many arrhythmias as possible. My ECG simulator is a matlab based simulator and is able to produce normal lead II ECG waveform.

4个7段lcd同时显示的程序，已经在digilent的nexy2板上通过验证，非常好用易懂，适合初学者学习-display 4 leds

用FPGA实现pwm调制波，通过单片机软核控制输入量来实现任意占空比方波的产生-wave

用于ATmega128的一些通讯程序，包含I2C　UART，SPI等接口，用ICCAVR编译(for ATmega128 some communications procedures, including UART I2C, SPI interfaces with ICCAVR compiler)

This is a divider, which is depicted as well. It is a programming language Vhdl.

控制电话信令 完成忙碌 等待 回铃音振铃等(Signaling complete control over telephone ring so busy waiting ringback tone)

xilinx ise开发环境中fft IP核调用，仿真(Xilinx ise development environment FFT IP core call, simulation)

说明：  这是8位CPU的CVDL代码。CPU 的主要功能是执行指令，控制完成计算机的各项操作，包括运算操作、传送操作、输入/输出操作等。作为模型计算机设计，将重点放在寄存器级，采取较简单的组成模式，以尽量简洁的设计帮助学生掌握CPU 的基本原理。 此次设计CPU就是为了了解CPU运行的原理，从而完成从指令系统到CPU的设计，并且通过仿真对CPU设计进行正确性评定。(The main function of CPU is to execute instructions, control and complete various operations of computer, including operation, transfer operation, input / output operation, etc. As a model computer design, it focuses on register level and adopts a simpler composition mode to help students master the basic principles of CPU with a concise design as far as possible. This design of CPU is to understand the principle of CPU operation, so as to complete the design from instruction system to CPU, and evaluate the correctness of CPU design through simulation.)

说明：  formality2016 userguide

说明：  I2C 从设备通讯应用示范程序，用于I2C设计验证(I2C slave communication application demo program, used to for I2C design verification )