program vending machine at the core function, with three kinds of commodity pric...

DAC VHDL code using SPI method

实现多路可变时分复用，包括复接器，解复接，比特同步，帧同步，分频器(Implement multi-channel variable time division multiplexing, including multiplexer, demultiplexing, bit synchronization, frame synchronization, frequency divider)

一般网站上都有i2c master模块的代码,但很少有slave的代码,这里就是slave的代码,非常有用.-general website have i2c master module of code, but very few slave code, This is the slave code, very useful.

Paint for SPARTAN 3E

由VHDL 语言实现的数控分频 利用的是QUARTUES环境已经得到验证-By the NC VHDL language is the use of sub-frequency QUARTUES environment has been tested

一款在Verilog实现的吃豆人游戏，采用VGA接口，在Nexys3开发板上运行无误。(A pac-man game implemented via Verilog, using VGA interface, perfectly run on Nexys 3)

FPGA实现的LCD接口，VHDL编程,FPGA芯片为ALtera公司的EP2c35-FPGA realization of the LCD interface, VHDL programming, FPGA chips for Altera

Spartan 3 Digilent Demo:This demo drives the perphrials on the Spartan 3 board. This drives a simple pattern to the VGA port, connects the switches to the LEDs, buttons to each anode of the seven segment decoder. The seven segment decoder has a simple counter running on it, and when SW0 is in the up position the seven segment decoder will display scan codes from the PS2 port. This demo how ever does not drive the RS-232 port or the memory. This is a simple design done entirely VHDL not microblaze.

基于vhdl的按键检测程序。可以有效消除抖动(vhdl key dectect program)

WM8731芯片的音效处理verilog代码， WM8731芯片是音频ADCDAC芯片(WM8731 audio processing chip verilog code, WM8731 chip audio ADC DAC chip)