8051 VHDL核心，内有说明，很详细，值得下载…

try this for pq improvmnett

针对32位MIPS微处理器中CLZ指令（对单个字高位连零进行计数）的实现电路，使用了类似于超前进位的逻辑结构。包含测试文档，以及Design Compile所用的环境和脚本。(The CLZ instruction counts the number of leading zeros in a word. The 32-bit word in the GPR rs is scanned from most-significant to least-significant bit.The number of leading zeros is counted and the result is written to the GPR rd. If all 32 bits are cleared in the GPR rs, the result written to the GPR rd is 32. )

Vhdl实现计算exp功能 在apex20k上经过验证-Vhdl achieve in terms exp function on proven apex20k

基于FPGA的神经网络硬件实现中的关键问题研究，适合用fpga研究神经网络的工程人员参考(FPGA-based hardware implementation of neural networks in the study of key issues for research with neural networks fpga reference works)

黑金动力原创nios ii教程，介绍了硬件、软件开发流程，提供了led、中断、串口、rtc、spi、iic、定时器等十多个实验的详细介绍(Alinx original nios ii tutorial, this paper introduces the hardware and software development process, and provides led, interrupt, a serial port, the RTC, spi, iic, timer and so on more than a dozen experiments in detail)

其中包括AD9226的原理图和应用程序，可以参考完成其他编程(Including AD9226 schematics and applications, you can refer to complete other programming)

这是我准备电子设计大赛时，用VHDL写的一个自动打铃系统，很好的学习资料。-This is when I am going to Electronic Design Contest, use VHDL to write an automatic bell playing system, a very good learning materials.

说明：  xilinx 平台的SPI从接口实现源码，供参考学习(used xilinx,slave-spi interface.)

温度控制系统.运用ds18b20温度传感器将实时温度送入FPGA中，再将温度显示出来(Temperature control systems. Use ds18b20 temperature sensor into the FPGA in real-time temperature, then the temperature is displayed)

An odd parity checker as an FSM using VHDL