cycloneII ep2c5 ep2c8

VCP201_CODE is a FPGA source code.

VHDL实现了IIS接口程序，在Quartus II 6.0上编译通过，在板子上可以读取IIS数据-IIS VHDL interface procedures, the Quartus II 6.0 compiled by the board can read data IIS

一个实用的uart协议模块，使用verilog 实现(A practical uart protocol modules, use verilog to achieve)

说明：  该资料是用vhdl编写的按键消抖程序，按键消抖在使用按键的数字电路中非常重要，如果不对按键信号进行处理，有可能会出现大量错误的按键信号。文件key_xd.vhd是按键消抖程序，文件key_xd.vwf是仿真波形文件。该程序已经通过仿真测试，并且在电路板上调试通过，效果理想。(The information is written in the key consumer vhdl shaking procedures, key consumer shaking in digital circuits using the buttons is very important, if not key signal processing, there may be a lot of the wrong button signal. File key_xd.vhd is key consumer shake procedure is the simulation waveform file key_xd.vwf file. The program has been tested by simulation and debugging in circuit board by, the results are satisfactory.)

AHB to Wishbone memory interface VHDL source code

Vhdl design z80 for altera users

这是一个基于可编程逻辑器件的程序，用来实现自动转换量程频率计控制器，该程序在可以再仿真器上仿真实现-This is a programmable logic device based on the procedures used to automatically convert the frequency range of the controller, the program can be in the simulation simulator

fsk调制与解调，此程序经过验证，可以运用，通讯方面的同学可以用-FSK modulation and demodulation, this procedure has been verified and can use communications students can use

VGA显示控制：时序控制+像素点的颜色处理显示十字光标（vorilog）(VGA Display Control: Timing Control+ pixel color processing and display cross cursor (vorilog))

xillinx Spartan6 FPGA DDR 接口设计指南(xillinx Spartan6 FPGA DDR Interface Design Guidelines)