VHDL呼吸灯程序，VHDL学习例程

如上图所示， Rst是低电平有效的系统复位信号，Clk是时钟信号。AB[5：0]是地址信号，DB[7：0]是数据信号，wr是低电平有效的写信号。start是启动信号。 模块中有一个64x8的双端口的存储器。系统复位结束后，可以通过AB、DB和wr信号向同步存储器写入数据。当写入64个数据后，给出一个Clk周期宽度的脉冲信号start，则系统从存储器0地址处开始读出数据，读出的8位数据从低位开始以3位为一组，每个时钟周期输出一组，即第一个时钟周期输出[2：0]位，第二个时钟周期输出[5：3]位，第三个周期输出1地址的[0]位和0地址的[7：6]位，直至将存储器中64x8数据全部输出。若最后一组不足三位，则高位补0。 (As shown above, Rst is an active-low system reset signal, Clk is a clock signal. AB [5: 0] is the address signal, DB [7: 0] is the data signal, wr write signal is active low. start is the start signal. Module in a dual port memory of 64x8. After the reset, you can write data to the synchronous memory by AB, DB and wr signals. When data is written to 64, given the width of a pulse signal Clk cycle start, the system begins to read the memory address 0, 8 data read out a low starting with three as a group, each clock outputs a set period, which is the first clock cycle of the output [2: 0] bits, the second clock cycle output [5: 3] position, the third cycle of the output of an address [0] and 0 address [7 : 6] bit, until all the data in memory 64x8 output. If the last group of less than three, the high 0s.)

A counter that starts from 0 and increments mod 16 on each rising edge of the clock

七段数码管显示数字时 使用VHDL语言编写(VHDL The seven-segment LED display digital clock)

verilog实现misp架构，并且支持modelsim仿真(Verilog implements MISP architecture and supports Modelsim simulation)

LCD例程 altera官方Verilog代码 详尽简单实用-LCD routines altera official Verilog code is simple and practical details

采用骏龙科技这个13.1新版本破解器.对于已经用了老版本破解器的网友，请把bin和bin64下的sys_cpt.dll删除，然后把sys_cpt.dll.bak名字改成sys_cpt.dll，也就是先恢复正版，然后用这个破解器破解。注意老的license文件也要删除，改用这个新版本破解器附带的license(Cytech Technology 13.1 using the new version of this cracker. Has been used for the old version cracker users, please sys_cpt.dll bin and bin64 under Delete, and then changed the name of the sys_cpt.dll.bak sys_cpt.dll, which is first restore genuine, then use this cracker to crack. Note that the old license file should be deleted in favor of this new version of the license that came with crack)

基于FPGA的1553B总线编码解码器的设计-1553B Bus FPGA-based codec design

应用背景关键技术本书采用“做中学”介绍VHDL和FPGA技术的概念和设计人员通过一系列的实验方法。

Encryption has become a part and parcel of our lives and we have accepted the fact that data is going to encrypted and decrypted at various stages. However, there is not a single encryption algorithm followed everywhere. There are a number of algorithms existing, and I feel there is a need to understand how they work. So this text explains a number of popular encryption algorithms and makes you look at them as mathematical formulas.

完成一个FIR数字滤波器的设计。要求： 1、 基于直接型和分布式两种算法。 2、 输入数据宽度为8位，输出数据宽度为16位。 3、 滤波器的阶数为16阶，抽头系数分别为h[0]=h[15]=0000，h[1]=h[14]=0065，h[2]=h[13]=018F，h[3]=h[12]=035A，h[4]=h[11]=0579，h[5]=h[10]=078E，h[6]=h[9]=0935，h[7]=h[8]=0A1F。 -Completion of a FIR digital filter design. Requirements: one, based on the direct type and distributed two algorithms. 2, input data width of 8, the output data width of 16. 3, filter order of 16 bands, tap coefficients for h [0] = h [15] = 0000, h [1] = h [14] = 0065, h [2] = h [13] = 018F , h [3] = h [12] = 035A, h [4] = h [11] = 0579, h [5] = h [10] = 078E, h [6] = h [9] = 0935, h [7] = h [8] = 0A1F.