VHDL的循环冗余校验发生器和接收器

此RS232通信协议用VHDL语言实现，基于Altium Designer公司的Protel DXP开发平台。本人是基于Nanaboard开发板编写的程序，其他用户只需要对配置文件进行修改即可用于其他电路板。-RS232 communication protocol with the VHDL language, based on the Altium Designer

说明：  FPGA控制AD7321的模块，是本人亲自试验过的。有Verilog源码，和简单文档。(FPGA control module of the AD7321 is personally tested. There Verilog source code, and simple document.)

program send sms by sim900 module

CPLD LATTICE1032测试模式代码-CPLD LATTICE1032 test model code

使用VHDL编写语言，巧妙的利用计数器和循环输出一个坐标系，由于VHDL出现负数比较麻烦，全部由正数代替，输出一个原点在中心，半径128的256×256的坐标。方便坐标变换以及用此坐标做算法。(Use of VHDL language, clever use of counter and loop outputs a coordinate system, because VHDL negative too much trouble, all replaced by a positive number, the output an origin at the center, radius 128 256 256 coordinates. Convenient coordinate transformation and coordinate to do with this algorithm.)

从零开始的Xilinx DDR3 控制程序编写教程，利用MIS IP核通过自编逻辑实现对DDR3的读写，强烈推荐(This is a zero to start Xilinx DDR3 control program written tutorial, the use of MIS IP kernel through the self compiled logic to achieve DDR3 reading and writing, strongly recommended.)

Module for filtering input digital signal

qpsk的fpga实现，包含调制和解调部分，使用verilog语言(FPGA implementation of QPSK)

This Book description about LCD in Board DE2

lattice的串口仿真的程序- serial port simulated programme of lattice