Universal Shift Register

actel公司用于1553总线的1553BRT-EBR核心代码 包括文档和代码非常有用(Actel company for the 1553 bus 1553BRT-EBR core code, including documentation and code is very useful)

VHDL实现国家SM4加密算法（ECB）模式 (VHDL to achieve national SM4 encryption algorithm (ECB) mode)

HDL example source code 3/5 jkff_a

altera mvb fpga sopc 设计参考文档，有一定价值(mvb fpga sopc Design scheme)

/功 能：1.实现与CPLD的通信,从而控制PWM的占空比. 2.实现LCD显示相关信息. // 3.实现对键盘按键的判断和确定相应的操作. 4.实现对电压电流的检测. // 5.实现过载保护功能,电流过大时,切断PWM输出,当排除过流故障后,自动恢复供电 // 6.实现用PID算法跟踪电压,实现稳压输出(/ Function: 1. Achieve communication with the CPLD to control the PWM duty cycle. 2 LCD Display relevant information.// 3. Realize the keyboard keys judgment and determine the appropriate action. 4. Achieve the voltage and current Detection// 5. achieve overload protection, current is too large, cut off the PWM output, when excluding overcurrent fault, automatically restore power// 6. achieve tracking voltage with PID algorithm to achieve the regulated output)

说明：  8位大小比较器的VHDL源代码，Magnitude Comparator VHDL description of a 4-bit magnitude comparator with expansion inputs(eight compared with the size of the VHDL source code, Magnitude Comparator VHDL description of a 4-bit magnitude comparator inputs with expansion)

verilog code for bus controller

采用VHDL编写的一个简单的UART-using VHDL prepared a simple UART

基于单片机显示原理的IO和LED显示原理(Based on the principle of IO chip and LED display shows the principle)