这是一个基于VHDL语言编程的电子琴源代码程序，希望可以帮到大家...

说明：  自己收集的quartus2 教程以及vhdl语言教程，和如何在quartus中使用modism仿真 ，希望对大家有用(Tutorial quartus2 own collection, as well as language tutorials vhdl and quartus how to use modism, useful for all of us hope)

四选一编程语言，可以自动生成四选一器件。-First elected four programming languages, you can automatically generate a four selected devices.

ISE7.1，采用VIRTEX-II芯片。实现adc数据采样，平均，通道选择，采样时钟选择，数据格式调整，内含fifo,uart等模块。-ISE7.1, using VIRTEX-II chip. Adc realize data sampling, on average, channel selection, the sampling clock select, adjust data formats, including fifo, uart modules.

用VERILOG实现自动售货机功能，运行正确，希望有帮助(Use VERILOG implementation vending machine function, correct operation, hope to have help)

this project is about FIR FIlter By VHdl codes in the ISE.

FPGA做VGA视频显示的详细资料，我找了很久才收集起的，有四篇文章，很有用(FPGA do VGA video display detailed information, I found a long time before they start collecting, with four articles, very useful)

KDP晶体二倍频与三倍频；基于耦合波方程组；已于实验结果校核 (Sum Frequency in KDP)

说明：  串口操作源代码，本代码采用veilog hdl语言编写，并经过本人多次验证。(source code, the code used veilog HDL language, and after I repeatedly verified.)

可编程逻辑器件cpld与单片机双向通信的源程序-Programmable logic device CPLD and MCU for two-way communication of the source

非常有用的IP核资源，里面包含了JTAG,MEMORY,PCI，SDRAM和USB1.1等内容，期望对大家有用-A very useful IP core resources, which includes the JTAG, MEMORY, PCI, SDRAM, and USB1.1 and other content, expectations for all of us