基于FPGA的AD_DA驱动

音乐计算器的设计与实现。完成加减与或比较计算，能显示进位借位零位，能根据结果的正负发出两首不同的音乐。(Design and implementation of music calculator. Complete addition and subtraction and comparison calculation, can display carry and borrow zero, can send out two different music according to the positive and negative results.)

说明：  这里是apb总线设计代码。这个源程序是基于verilog语言设计的(Here is the APB bus design code. This source program is designed based on Verilog language)

利用SCCB和FPGA实现视频采集的论文，对相关开发人员具有很强的参考价值！ (FPGA implementation using the SCCB and video collection of the papers, the relevant developer has a strong reference value ! )

基于FPGA实现蜂鸣器播放音乐的功能 使用芯片为EP2C8Q208C8N,使用普通蜂鸣器，由于频率不同可实现放歌功能，本例设计的是《友谊地久天长》，使用Verilog语言编程，本例子有工程文件、仿真、波形，经过测试可以使用。(Play music based on FPGA buzzer functions using chip EP2C8Q208C8N, using ordinary buzzer, since the frequency of different functions can be realized sing, in this case the design is " Auld Lang Syne" , using Verilog language programming, this project examples files, simulation, waveform, tested can be used.)

Blessing_3_v3_9_6稳定盈利set，仅限AUDNZD货币对，周期M1。 使用本压缩包内的SET，LAF默认是15，根据历史测试来看具有较大的风险，需要手动规避数据。 合理设置为LAF=8，请自行设置和调试，找到自己合适的风险值。 (Blessing_3_v3_9_6 stable profit set, only AUDNZD currency pairs, cycle M1. Use this package in the SET, the default is 15 fans, according to the angles of history test has great risk, need to avoid data manually. Reasonable set to fans = 8, please make your own setting and debugging, find their proper risk value.)

应用背景Project: A Wishbone Controlled Real--time Clock Core Purpose: Implement a real time clock, including alarm, count--down timer, stopwatch, variable time frequency, and more.关键技术基于FPGA的用verilog编写的时钟模块，具有时间计数，闹铃，以及计数器功能！具有很好的学习和使用价值。基于FPGA的用verilog编写的时钟模块，具有时间计数，闹铃，以及计数器功能！具有很好的学习和使用价值。

将VHDL程序下载到DE2开发板，引脚分配时需要知道的芯片每个引脚功能(VHDL program will be downloaded to the DE2 development board, you need to know when the pin assignments for each pin of the chip functions)

完整的GMSK调制及维特比译码，程序中包括了高斯滤波器的设计，调制相位的计算，并采用了维特比译码算法解调出原始码元，最后计算了其误码率。(Complete GMSK modulation and Viterbi decoding, the program includes a Gaussian filter design, the calculation of the phase modulation, and uses the Viterbi algorithm demodulates the source element, the final calculation of the bit error rate.)

八位串行乘法器 缺点：乘法功能是正确的，但计算一次乘法需要8个周期，因此可以看出串行乘法器速度比较慢、时延大。 优点：该乘法器所占用的资源是所有类型乘法器中最少的，在低速的信号处理中有广泛的使用。(Eight bit serial multiplierDisadvantages: the multiplication function is correct, but the computation of one multiplication requires 8 cycles, so it can be seen that the serial multiplier is slow and time-consuming. Advantages: the multiplier occupies the smallest number of resources in all types of multipliers, and is widely used in low speed signal processing.)