Verilog languages with four arithmetic logic unit ALU, functional reference to 7...

说明：  实现AXI,AXI-Lite乒乓地址的传输，AXI,AXI-Lite已经封装成内核，可直接修改后使用(Realize the transmission of table tennis address of Axi and Axi Lite. Axi and Axi Lite have been encapsulated into a kernel, which can be directly modified and used)

频率计VHDL编程。设计一个4位数字显示的十进制频率计，其测量范围为1MHz，测量值通过4个数码管显示以8421BCD码形式输出，可通过开关实现量程控制，量程分10kHz、100kHz、1MHz三档(最大读数分别为9.999kHz、99.99kHz、999.9kHz)； 当输入信号的频率大于相应量程时，有溢出显示。 -Cymometer VHDL programming. Design of a 4-digit decimal display frequency, the measurement range of 1MHz, the measured value through the four LED 8421BCD code shows the form of output can be controlled through the switch range, range at 10kHz, 100kHz, 1MHz Three (maximum reading were 9.999kHz, 99.99kHz, 999.9kHz) when the input signal is greater than the corresponding frequency range, it shows overflow.

给予QPSK调制的OFDM例程，简单明了的表述了OFDM的通信原理(Given OFDM QPSK modulation routine, simple expressions of OFDM communication theory)

线性反馈移位寄存器的最右侧位称为输出位。水龙头是 XOR 按顺序和输出位，然后反馈到最左边的位。在最右边的位置的位序列的叫做输出流。双边投资条约中的线性反馈移位寄存器状态影响输入被称为水龙头 （在图中的白色）

根据软件无线电的思想，提出了一种新颖的数字信号处理算法，对QPSK信号的相位进行数字化处理，从而实现对QPSK信号的解调.该算法允许收发两端载波存在频差，用数字锁相实现收发端载波的同步，在频偏较大的情况下，估算频偏的大小，自适应设置环路的带宽，实现较短的捕获时间和较好的信噪性能。整个设计基于XILINX公司的ISE开发平台，并用Virtex-II系列FPGA实现。用FPGA实现调制解调器具有体积小、功耗低、集成度高、可软件升级、扰干扰能力强的特点，符合未来通信技术发展的方向。(According to the idea of software radio, a novel digital signal processing algorithm, the phase of QPSK digital signal processing, enabling the demodulation of QPSK signals. This algorithm allows the sending and receiving ends of the carrier frequency difference exists, using digital phase-locked to achieve synchronization of sending and receiving end of the carrier, in the case of large frequency offset, frequency offset estimation of the size, adaptive set the loop bandwidth to achieve shorter acquisition time and better noise performance. The whole design is based on the company XILINX ISE development platform, and Virtex-II series with the FPGA. FPGA realization of a modem with a small size, low power consumption, high integration, software upgrades available, the characteristics of strong interference interference, in line with the future direction of ICT development.)

由avalen总线转接i2c总线的vhdl程序 可应用于nios嵌入式系统-By avalen bus adapter i2c bus VHDL program can be applied to Nios Embedded Systems

串口控制器，基于vivado软件下开发，包含代码及管脚分配文件(Serial port controller)

我上期做的VHDL设计方案，用于在FPGA或CPLD中实现HDB3的编码-I do view on the VHDL design options for the CPLD or FPGA to achieve HDB3 code

实现任意整数倍的信号分频，可调，不存在毛刺，波形完整，可运于信号的分析与检测(Arbitrary integer multiple of the signal frequency, adjustable, there is no glitch, waveform integrity, and can transport the analysis and the detection signal)

CAN驱动器MCP2515驱动，verilog编写，实测可用(CAN driver MCP2515 driver, Verilog written, measured available)