vhdl编写的硬件乘法器

介绍了如何用vhdl语言实现处理器的spi接口-Describes how to use VHDL language processor spi interface

对用开发板上开关产生的信息做汉明编码并通过串口发送至电脑(The Hamming code is generated from the switch on the development board and sent to the computer through the serial port.)

用VHDL语言编程完成数码管0-255数字的显示-VHDL language programming with the 0-255 number to complete the display of the digital control

交通灯控制系统VHDL源码，用VHDL语言、MAXPLUS2环境设计实现(VHDL core)

4x4键盘模块。这个文件包括普通的键盘设计方案说明和相关的原程序。-4x4 keyboard module. The documents include ordinary keyboard design program descriptions and procedures related to the original.

本源码为Nios II的开发示例,主要演示Nios II的I2C总线设计。开发环境QuartusII。 本示例十分经典，对基于SOPC开发的FPGA初学者有很大帮助。-The source code for the Nios II development of an example, the main demonstration Nios II I2C-bus design. Development environment QuartusII. This example is very classic, FPGA-based SOPC development of great help for beginners.

EP2C35开发板官方原理图,是altera的官方资料。是fpga电路设计的很好参考典范。-EP2C35 official development board schematics, is altera of official information. Fpga circuit design is a good reference model.

basic verilog code on siso, piso, sipo

说明：  反应力测试 利用图片的变换根据用户点击的反应时间判断(Reaction force measurement using the picture of the transformation reaction time based on user clicks judgment)

基于FPGA的数字钟的设计，外部时钟32MHz，通过分频器得到秒脉冲，用于正常工作时的计数脉冲。通过分频还得到一个5ms的脉冲，用于按键的消抖（具体原理可见程序）。输入的信号有三个：1.时钟信号2.校时模式设置按键3.校时调整按键，输出通道6位数码管。共有：校时模块，24计数的小时计数模块，60计数的分钟计数模块，60计数的秒钟计数模块。