DDR (double rate) SDRAM controller reference design Verilog code, can be directl...

使用Xilinx3S400开发的钢板检测算法中心化算法，通过测试。(a vhdl-program use Xilinx3S400)

通过vga通讯控制显示器显示七彩条文，通过quartus编译的程序，可用-Communication and Control through the vga display colorful provisions quartus compiled through the procedures that can be used

主要介绍，I2C总线主设备发送数据给从设备，代码实现是用Verilog语言实现的，对硬件设计者有很大好处(Introduces, I2C bus master to send data to the slave device, code is implemented in Verilog language, the hardware designer of great benefit)

该代码使用 FSM 3 线串行 eeprom 与 fpga 的接口。它是由微芯片定义的接口。 该代码在串行 EPROM 中存储来自 ADC 的偏移量的错误。

4位的超前进位加法器，门级电路连接得到，verilog代码实现(4-bit look-ahead adder, gate-level circuit)

实现basys3板子的串口通信，内容非常纤细，还带有数码管显示(Realization of serial communication of basys3 board)

AMBA总线apb总线的verilog代码以及相关的中断控制。(AMBA bus apb bus verilog code and associated interrupt control.)

自己写的位同步实验程序参考，该算法需要发送和接收方的频率比较稳定时，可以很快地达到位同步，且十分稳定。位同步是通信技术的基础之一，希望对大家学习有所帮助。(The program is a reference used for bitsynchro writed by myself.When the both send s and receive s frequency are stable,the program can reach bitsynchro fastly.)

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.)

反应速度测试小游戏，最小外设cpld游戏，带设计说明书(Reaction speed test games, the minimum peripheral cpld game, with design specifications)