selfmade UART HDL code

密码锁verilog源代码，包括四个七段数码管显示模块，设置密码以及输入密码校验模块(Password lock Verilog source code, including four of seven digital tube display module, set the password and password verification module)

verilog 模糊PID 通过修改MIF文件 可以完成单个参数整定(FUZZY pid by verilog HDL)

主要编写了一组二进制数据通过根升余弦滤波器后的波形，但并没有使用ISE内部的FIR滤波器内核，该程序相当于编写了一个根升余弦滤波器。(Mainly prepared a set of binary data through the root raised cosine filter waveform after, but did not use the ISE internal FIR filter kernel, the program is equivalent to the preparation of a root raised cosine filter.)

verilog编写的并行256点fft代码(Verilog prepared parallel 256 points fft code)

基于verilog hdl编写的FPGA正弦信号发生器，已测试。(FPGA sine signal generator)

键盘计算器，可实现加减乘数运算 基于fpga nios2(Keyboard, calculator, addition and subtraction can be realized based on fpga nios2 multiplier operator)

用于ATmega128的一些通讯程序，包含I2C　UART，SPI等接口，用ICCAVR编译(for ATmega128 some communications procedures, including UART I2C, SPI interfaces with ICCAVR compiler)

Multiplication in Verilog code

IT IS THE DP MEMORY MODULE. IT CONTROLS THE DP MEMORY

本文介绍了在数字下变频(DDC) 中的抽取滤波器系统设计方法和具体实现方案。采用CIC 滤波器、HB 滤波器、FIR 滤波器三级级联的方式来降低采样率。通过实际验证,证明了设计的可行性(This article describes the digital down conversion (DDC) of the decimation filter system design methods and concrete realization of the program. Using CIC filter, HB filter, FIR filter cascade three-level approach to reduce the sampling rate. Through the actual authentication, to prove the feasibility of the design)