这是我最近买的一套CPLD开发板VHDL源程序并附上开发板的原理图,希望对你是一个很好的帮助!其中内容为:8位优先编码器,乘法器,多路选择器,二进制转BCD码,加法器,减法器,简单状态机,四位比较器,7段数码管,i2c总线,lcd液晶显示,拨码开关,串口,蜂鸣器,矩阵键盘,跑马灯,交通灯,数字时钟.-which I have recently bought a CPLD Development Board VHDL source code accompanied the development

首先介绍了LDPC码的校验矩阵和其因子表示方法，然后利用二分图对和积解码算法进行了详细的描述，最后给出了信度传播概率译码算法详细步骤，并对关键公式作了证明-This paper,first introduces the check matrix and the factor graph of LDPC,then describes the sum-product algorithm by using the factor graph,and finally presents the deta

普通交通灯，可以设置初始倒计时时间，用矩阵键盘设置。内涵原理图。请用proteus 7.7或者更高版本打开-Ordinary traffic lights, can set the initial countdown time, using matrix keyboard Settings. Connotation principle diagram. Please use proteus 7.7 or higher version open

基于FPGA，在quartus上，用WHDL语言和原理图设计的矩阵键盘显示电路。完整项目。-Based on FPGA, quartus, with WHDL language and principles of map design matrix keyboard display circuit. Complete the project.