本文介绍了乐曲演奏电路的设计与实现中涉及的CPLD／FPGA可编程逻辑控件,开发环境MAX+PLUSⅡ,硬件描述语言HDL以及介绍了在MAX+PLUSⅡ的EDA 软件平台上, 一种基于FPGA 的乐曲发生器的设计方法, 并给出了设计的顶层电路图和底层模块的VHDL（或AHDL）源程序。该设计的正确性已通过硬件实验得到验证。 -The musical performance circuit’s design and implement Abstract: This paper introd

高科技的发展使芯片设计不再是半导体工业的领域，现场可编程逻辑阵列（FPGA）的出现使通过软件来快速实现芯片设计成为可能。本系统是广泛面向全球的工程技术人员和大专院校学生，使您能够在最短的时间内掌握FPGA的应用与VHDL/AHDL/Verilog HDL这一电子逻辑设计利器，迅速的加入高级电子设计人才行列。-The development of high-tech chip design is no longer the field of semiconductor industry, fiel

求平方根的ip核，Altera提供，可以用在FPGA上，是AHDL语言写的，不开放源码-Square root of the ip seeking nuclear, Altera provides, can be used in FPGA, is written in AHDL, not open source

Quartus II was a development tool of CPLD / FPGA by Altera Company. Quartus II provides a fully integrated circuit structure and has nothing with the development package environment, it has all the features of digital logic design, it is including: a