波形产生器：用VHDL编写的波形产生器程序

说明：  FPGA核心板EP4CE10F17C8电路原理图(Circuit schematic diagram of EP4CE10F17C8 core board of FPGA)

VHDL经典设计，值得参考。压缩包里面文件直接用记事本打开即可。-VHDL design classic, it is also useful.

利用VHDL语言实现并串转换过程。利用VHDL语言实现并串转换过程。利用VHDL语言实现并串转换过程。利用VHDL语言实现并串转换过程。利用VHDL语言实现并串转换过程。

LS165移位寄存器的verilog语言编写(The writing of the Verilog language of LS165 shift register)

verilog编写的ds18b20温度传感器程序，可综合(ds18b20 program written in verilog)

使用VHDL语言实现了FPGA与DAC5688进行SPI通信更改寄存器值(The FPGA using VHDL language with the DAC5688 SPI communication to change the register value)

实现千兆以太网数据发送，通过GMII接口向PHY写数据，控制PHY发送数据。(Implementation of Gigabit Ethernet data transmission, write data to the PHY through the GMII interface, control PHY data.)

实现QPSK系统的调制解调仿真，基带成形滤波器采用升余弦滚降滤波器，将仿真的误码率与理论误码率作了比较(Implement QPSK modulation and demodulation simulation system, the baseband shaping filter using Raised Cosine filter will BER simulation were compared with the theoretical BER)

由avalen总线转接i2c总线的vhdl程序 可应用于nios嵌入式系统-By avalen bus adapter i2c bus VHDL program can be applied to Nios Embedded Systems

定时器加数码管显示源码，以及test bench测试模块源码，经modelsim仿真结果正确(Timer plus digital display source code, and test bench test module source code, by modelsim simulation results are correct)