最完整最实用的8051软

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

yuv444 与yuv422相互转换verilog语言(yuv444 to yuv422)

QAM调制，基于FPGA的实现，包含有乘法器模块、升降余弦滤波器模块、QAM序列生成模块(QAM modulator,the implementation based on FPGA,include MUL、FIRCOS and QAM generate)

海德汉绝对式编码器代码，VHDL语言编写(Heidenhain absolute encoder code, VHDL language)

An universal shift register performs the following tasks load, right shift ,left shift and parallel load as the selection inputs are 00,01,10,11 respectively. Such a register is implemented here in Quartus.

轴系测试程序，多通道输入输出，实现时域、频域、轴心轨迹、瀑布图等功能。(Shafting test program, multi-channel input and output, to achieve time domain, frequency domain, orbit, waterfall and other functions.)

说明：  4位数码扫描显示电路,我们控制一个七段LED需要8个输出端口；如果要输出四位十进制数，就需要32的输出端口，这将占用大量的端口资源。采用串行扫描显示，我们只需要8+4共12个端口即可。其原理是：用一个四位的输出端控制，某一时刻只选中其中的一个LED（输出为‘1’表示选中），八位的输出端将该LED所需要显示的值输出；然后四位的输出端值改变，选中下一个LED。这样依次类推。如果选择的频率很快，达到50Hz以上，由于人眼的视觉暂留效应，看起来就像4个LED同时显示。 设计一个程序，输入四个一位十进制数，用4个LED显示出来。CLK采用频率可调信号发生器，逐渐改变频率，观察扫描频率的改变对输出效果的影响。 输入：连续脉冲，逻辑开关；输出：七段LED。 (4 digital scanning display circuit, we need to control a seven-segment LED output port 8 If you want to output four decimal numbers, you need the output port 32, which will take up a lot of ports. Serial scans showed, we need only 8 of 12 ports can be+4. The principle is: the output of four with a control, a time to select only one LED (output 1 is selected), 8 output of the LED by the need to show the value of the output then The output value of the four changes, select the next LED. This and so on. If you select the frequency rapidly, reaching more than 50Hz, as the human eye s persistence of vision effect, looks like a 4 LED display simultaneously. Design a program, enter a decimal number four, with four LED display. CLK signal generator with adjustable frequency, gradually changing the frequency of observed changes in scan frequency effect on the output. Input: Continuous pulse, logic switches output: seven-segment LED.)

基于VHDL语言编写，可下载到FPGA板子上实现的cordic算法实现的设计，并用该算法实现sin和cos的计算，计算结果显示在数码显示管上，已包含按键防抖动功能的实现。(Based on VHDL language, can be downloaded to the the cordic algorithm implemented in the FPGA board to achieve the design and calculation of sin and cos using this algorithm, the results displayed on the digital display tube is included on the function of the realization of the button shake.)

调制解调器是在发送端通过调制将数字信号转换成模拟信号，而在接收端通过解调将模拟信号转换为数字信号的一种装置。这个程序用VHDL语言编写，实现了二进制振幅键控（2ASK）的调制与解调；二进制频移键控（2FSK）的调制与解调，二进制相位键控（2PSK）的调制与解调过程。

2004 SNUG of systemverilog