USB 1.1 PHY的代码，verilog语言 USB 1.1 PHY的代码，verilog语言

说明：  fpga配置锁相环完整程序，使用quartus IP核，Verilog语言。(FPGA configuration PLL complete program, Verilog language.)

学习xilinxVHDL语言的一本好书，为官方资料，可方便读者熟悉xilinx的代码风格(A good VHDL,it s fittable for the reader to be familiar with the style of xilinx)

vhdl数字电路设计经典教程，入门必备，非扫描版，非常清晰(vhdl digital circuit design classic handbook, entry-essential, non-scan version, very clear)

实用Verilog编写的SVPWM程序，产生出SVPWM波形，可用于实现同步电机或者异步电机的空间矢量控制算法。(Practical Verilog of SVPWM written procedures, resulting in the SVPWM waveform can be used to implement the space vector control algorithm of the synchronous motor or induction motor.)

DDs直接数字频率合成器的源代码，其中包括采用IP核和普通两种方式-DDS Direct Digital Synthesizer source code, including the use of IP core and the general two ways

8051的vhdl源代码，主要针对初学者-8051 VHDL source code, mainly for beginners

DDS在现在运用月来越广泛，在相对带宽、频率转换时间、相位连续性、正交输出、高分辨力以及集成化等方面都远远超过了传统频率合成技术所能达到的水平，为系统提供了优于模拟信号源的性能。利用DDS技术可以很方便地实现多种信号。在FPGA上实现的DDS-DDS now to the use of more extensive relative bandwidth, frequency conversion time, phase continuity, quadrature output, high-resolution and integration, and other aspects far more than the traditional frequency synthesizer technology can achieve the level To provide a superior analog signal source performance. DDS technology can be used very easily to a variety of signal. FPGA Implementation of DDS

说明：  难得的soc设计用的ddr3 verilog，可用于学习！！！！！有datasheet ，可仿真(soc ddr3 verilog for study !!)

EP2C35开发板官方原理图,是altera的官方资料。是fpga电路设计的很好参考典范。-EP2C35 official development board schematics, is altera of official information. Fpga circuit design is a good reference model.

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