SHA1算法

代码文件夹： ARVI_FSM.v为顶层文件，用于模拟时用。 dataHex.dat 为模拟输入文件（只有10行，象征的意思。实际我们模拟时，dataHex.dat文件足有1个多GB） dataFormat.dat为输入文件对应的带格式的文件 使用modelsim模拟时，将dataHex.dat名字改为CPUContext.txt 结果: result.txt (Code folder: ARVI_FSM.v for top-level documents used for the simulation. dataHex.dat for analog input files (only 10 line, the meaning of the symbol. actual simulation we, dataHex.dat documents have more than one full GB) dataFormat.dat for the input file the corresponding file with modelsim simulation used to dataHex.dat name to CPUContext.txt results: result.txt)

vhdl编写的FPGA与DSP接口程序，在FPGA内分配了两块双BUFFER与DSP进行通信(vhdl prepared FPGA and DSP interface program, the FPGA within the allocated 2 pairs of BUFFER to communicate with the DSP)

基于verilog语言的差分曼彻斯特编码，内包含数据的采集，CRC校验（8位），和编码，输出。附有完整的工程文件。可直接调用modelsim仿真。(Based on differential Manchester encoding verilog language, and contains data collection, CRC check (8), and coding. With complete project file. Modelsim simulation can be called directly.)

低频数字式相位测量仪，数码管显示相位差，精度为0.1(Low frequency digital phase measuring instrument, digital pipe display phase difference )

DE2-70开发板中附带的控制面板，可以读取存储器中的数据，这个可以正常连接和读取，有好几版本的，有的不能用，而这个经过我亲自测试。(DE2-70 development board comes with a control panel, you can read the data in the memory, this can be properly connected and read, there are several versions, and some can not be used, and this after I personally tested.)

说明：  配置GTH ip的例子工程，选用7 series 芯片的GTH 113quad的四个通道，在程序中每个链路利用自己的恢复时钟进行数据解码，所以四个通道可以各自独立运行；成功工作在2.54Gb/s的链路状态，长时间（>24小时）的测试，误码率一直为0.(The GTH ip example project is configured with four channels of the GTH 113quad of the 7 series chip. Each link in the program uses its own recovery clock for data decoding, so the four channels can operate independently; the successful operation is at 2.54Gb/ The link state of s, long time (>24 hours) test, the bit error rate has been 0.)

本程序调试了TI的高精度模数转换芯片ADS1115,此模数转换器采用双积分型，16位，为IIC通信方式，调试较复杂，在对直流采集方面有着广泛的应用(This program debugging TI s high-precision analog-digital conversion chip ADS1115)

利用VHDL 硬件描述语言设计一个0~9999 的加法计数器。根据一定频率的触发 时钟，计数器进行加计数，并利用数码管进行显示，当计数到9999 时，从0 开始重新计数(Use of VHDL hardware description language design a 0 ~ 9999 addition counter. According to a certain frequency of the trigger The clock, counter add count, and use digital pipes to show that when the count to 9999, starting from 0 to count )

hash加速器的verilog实现，也用于fpga或asic(hash verilog rtl )

VHDL code of a counter Code VHDL d un compteur