改进的DCT算法设计，veriloghdl实现

基于FPGA的频率测量，能测量方波信号的频率、占空比、相位差。范围100mHz~200MHz，精度0.0001Hz(The frequency measurement based on FPGA can measure the frequency, duty cycle and phase difference of the square wave signal. Range 100mHz~200MHz, precision 0.0001Hz)

FPGA SPI 主要模块全部涵盖 时序解释 与DSP通信(FPGA SPI Timing interpretation covering all main modules communicate with the DSP)

非常好的verilog书 国际牛人写的 适合各个阶段学习的人(Very good Verilog books were written in the international cattle suitable for the various stages of learning)

2. You may use this core in any way, be it academic, commercial, or -- military. Modified or not.-2. You may use this core in any way, be it academic, commercial, or-- military. Modified or not.

说明：  用于实现上位机与下位机之间通过RS232协议来进行通讯。(It is used to realize communication between upper computer and lower computer through RS232 protocol.)

基于VHDL语言的汉明码的译码，含有校正子跟纠错检错功能-Based on the VHDL language decoding Hamming Code, which contains sub-calibration error with error correction function

UMC 90nm design kit. please read before using thee models.

1、ps/2键盘输入，通过led显示ascii码 2、稍等1s可以在lcd上显示输入的字符 3、其中键盘上的backspce键是用来清屏的 4、当lcd上显示满字符时，在按下按键自动清屏，从第一行显示。-1, ps/2 keyboard input, through the led display ascii code 2, wait 1s in the lcd display characters input 3, which backspce keys on the keyboard was required to settle the screen 4, when the lcd display full of characters, the press the button automatically Qing-ping, from the first line of display.

基于FPGA的1602时钟显示,驱动1602显示时钟,矩阵键盘调时(1602 FPGA-based clock display, clock display driver 1602, when the transfer matrix keyboard)

基于FPGA的任意波形信号发生器,可实现频率、幅度、相位的调节，输出方波、正弦波、锯齿波(Arbitrary waveform generator based on FPGA)