高密度脂蛋白示例源代码5 / 1

library ieee; use ieee.std_logic_1164.all; use ieee.std_logic_unsigned.all; entity song is    port(clk_4MHz,clk_4Hz:in std_logic;      ----预置计数器和乐谱产生器的时钟         digit:buffer std_logic_vector(6 downto 0);  ----高、中、低音数码管指示         zero:out std_logic_vector(4 downto 0);     ----用于数码管高位置低  

Xilinx picoBlaze explained

说明：  学习vhdl硬件描述语言的一些例子的原代码(VHDL hardware description language to learn some examples of the original code)

说明：  按键消抖,避免按键抖动造成信号误触发，增大按键输入的可靠性(Key jitter elimination, avoid key jitter caused by signal error trigger, increase the reliability of key input)

利用cordic实现三角函数的计算，用vhdl实现-use cordic achieve trigonometry calculations, using achieve vhdl

基于FPGA的DM9000A芯片的网络数据采集系统，基于NIOS架构，c语言编程，资料齐全，包含不止5个源程序，绝对受用！(FPGA-based the DM9000A chip network data acquisition system based on NIOS architecture, c programming language, the information is complete, contains more than 5 source code is absolutely good enough!)

Documentation Of Digital Electronic Systems With VHDL from US DOD.

Run-Length Encoder Example: Input Sequence (hexadecimal format): 0A, 14, 14, 14, 14, 14, 14, 14, 56, 56, 56, 56, 56, 32, 32, 07 Output Sequence (hexadecimal format): 0A, 14, 87, 56, 85, 32, 32, 07

四位拨妞开关作为输入，当输入值变化时将其转化成两位输出(The four DIP Niu switch as an input, when the input value changes, be converted into two output)

基于PCF8591数模转换和DDS技术的信号发生器系统设计(Design of Signal Generator System Based on PCF8591 Digital-to-Analog Conversion and DDS Technology)