vhdl数据通路

用verilog语言写的简单的键盘扫描代码，适合初学者，用alter的软件编写的程序代码。(Using verilog language to write simple keyboard scan code, suitable for beginners, with alter software program written code.)

des code source vhdl sur fpga

verilog source code for SD card SLAVE DEVICE IP-Core

The Hilbert Transform is an important component in communication systems, e.g. for single sideband modulation/demodulation, amplitude and phase detection, etc. It can be formulated as filtering operation which makes it possible to approximate the Hilbert Transform with a digital filter. Due to the non-causal and infinite impulse response of that filter, it is not that easy to get a good approximation with low hardware resource usage. Therefore, different filters with different complexities have been implemented. The detailed discussion can be found in "Digital Hilbert Transformers or FPGA-based Phase-Locked Loops" (http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4629940). The design is fully pipelined for maximum throughput.

频率计，ＶＥＲＩＬＯＧ代码，含详细　中文注释．-Cymometer, VERILOG code, containing a detailed Chinese Notes.

Laplace可以应用于图像的锐化，根据其原理，对于Laplace后的图像同样可以进行边缘检测。(Laplace can be applied to image sharpening. According to its principle, edge detection can also be performed for images after Laplace.)

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VHDL写的8051内核,可用的,好用,有兴趣可下载,在外国网站下载的-write VHDL 8051 kernel, available, convenient, can be downloaded interested in the foreign website

VHDL code for converting BCD to Decimal

1、固定红色显示一个汉字或图形，显示亮度4 级可调，用一个btn 按钮实现亮度调节，亮度变化视觉效果要尽量明显。2、用从红到绿 8 级渐变色显示一个固定汉字或图形。3、分别用单字循环显示、左右滚动显示、上下滚动显示三种显示方式单色显示四个汉字或图形，显示过程中，显示方式用一个btn 按键进行切换。4、显示的图形或汉字要尽量饱满美观。