VHDL实现二维DCT变换

提供了利用 GPIF 对 FX2LP 与同步 FIFO CY7C4625-15AC 之间的接口进行设计的源代码(Provides for the use of GPIF FX2LP and synchronization FIFO CY7C4625-15AC to design the interface between the source code)

说明：  risc 8 by coonan compatible with PIC16C57

代码实现了一个由32位寄存器组成的寄存器组，并有多个控制输入和两个输出，方便使用。(The code implements a 32-bit register consisting of registers, and there are multiple control inputs and two outputs, easy to use.)

本代码为简单AXI接口控制模块，具备数据的读写等传输功能，对总线传输学习者来说是很好的学习资料，可在此代码基础上进行更复杂功能接口的模块的开发。

按键控制LED流水灯；按键1按下前8个灯从左到右依次点亮，按键2按下中间前8个灯从左到右依次点亮，按键3按下所有灯全亮(Water control button LED lights sequentially lit buttons the eight lights left to right 1 Press button 2 press from left to right is lit in the middle eight lights, key 3 Press All full bright light)

WCDMA数字频域干扰抵消器，绝对的高手写的文档和代码，里面资料齐全方便自学，是很好的学习FPGA实现无线通信模块的资料。(WCDMA Frequency Domain Interference Cancellation figures, the absolute master of written documentation and code, which complete information to facilitate self-learning, is a very good learning FPGA implementation of wireless communications and information.)

usb读取，仅供参考，在实际应用中要更改以下数据。(Read usb data)

海德汉绝对式编码器代码，VHDL语言编写(Heidenhain absolute encoder code, VHDL language)

QPSK调制的载波频偏估计，是一个可以调用的函数。接收端进行了一系列的处理。经典的Kay法(QPSK-carrier frequence offset estimation_ kay )

说明：  基于FPGA 黑金ALINX 515的 ADDA采样模块源码（需调试）(ADDA Sampling Module Source Code Based on FPGA Heijin ALINX 515)