airthmatic & logic unit

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.)

VHDL参考手册，从事FPGA的好帮手，FPGA学院的终身伴侣！-VHDL Reference Manual, in FPGA a good helper, FPGA college life companion!

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

有单极倍频功能的matlab spwm逆变器(Unipolar multiplication function the the matlab spwm of inverter)

主要通过频率分配 实现不同时间的变化 达到呼吸一闪一闪的效果

我用VHDL写的正弦，用FPGA内部ROM，有仿真testbench,在quartus里可以运行。在板子里已经验证-I used to write VHDL sinusoidal, using FPGA internal ROM, has simulation testbench, you can run in Quartus. Yard has already been verified in the plates

一个具有置位、复位、左移和右移功能的八位移位寄存器/“01011010”序列检测器。移位寄存器电路端口为：异步清零输入端口rst，输入时钟clk，置数判断输入端口load，移位类型判断输入端口m，数据输入端口data[7:0]，输出端口q[7:0]。序列检测器电路端口为：异步清零输入端口rst，输入时钟clk，串行数据输入端口d，输出标志端口s。(A eight bit shift register / 01011010 sequence detector with set, reset, left shift, and right shift function. Shift register circuit port is: Asynchronous Clear input port rst, input clock CLK, set the number to determine the input port load, shift type to determine the input port m, data input port data[7:0], output port q[7:0]. The sequence detector circuit port is: Asynchronous Clear input port rst, input clock CLK, serial data input port D, output flag port s.)

0-99记数VHDL的源程序,综合实验指导书上的,可以用的 大家下载哦 -0-99 notation VHDL source, comprehensive guide book on the experiment can be used by everyone to download Oh

电子打铃器 在max plus 2 下编译通过-electronic bell playing for the max plus 2 under through compiler

《Verilog HDL 程序设计教程》5-"Verilog HDL Design Guide" 5