sm4 vhdl

说明：  TI公司的DAC5578驱动程序，经测试过的，CSDN资源分享(DAC5578 Driver of TI Company Tested and CSDN Resource Sharing)

基于fpga和dsp架构的gps接收机的设计和实现(Design and Implementation of gps Receiver Based on fpga)

I2C控制核设计,由VHDL语言编写,使普通I/O端口实现I2C性能-I2C control of nuclear design, VHDL language, I/O ports I2C Performance

设计制作一个可容纳4组参赛者的数字智力抢答器，每组设置一个抢答按键； 电路具有一第一抢答信号的鉴别和锁存的功能。在主持人将系统复位并发出抢答指令后，若参加者按抢答键，则该组指示灯亮并用组别显示抢答者的组别。此时，电路具有自锁功能，使别组的抢答开关不起作用。 设置计分电路。每组在开始时预置成6分，抢答后主持人计分，答对一次加1分。(The design can accommodate a the Entrants digital intellectual Responder, each set answer in a key circuit has a first answer in the signal to identify and latch functions. Host to the system reset and sent the answer in instruction, participants answer in key, the group of the group light and display the answer in the group. At this point, the circuit has a self-locking function does not work in other groups to answer switch. Set Scoring circuit. Preset six points each at the beginning of the answer in scoring after the host, answer time, add 1 point.)

在学习verilog 中与遇到一些列问题的整理。(this Documentation is about the problem about verilog which is meeted when i was learn FPGA)

Universal Shift Register

Protocol Buffers - Google s data interchange format.

this is code verilog

在一些系统中，经常用到对触发信号延时一段时 间后，再对某些目标信号进行采集，通常这段延时要求 非常精确，还要做到范围可调，一般这种延时的最小时 间单位小于100ns。如果选用普通微控制器，延时系统的操作界面比较容易实现，但是靠软件延时得到结果的准确性较低。考虑到芯片功能、开发环境以及接口方便等问题，最终选用一片常用的AlteraSVCPLD EPM7128SLC3411]作为系统的核心控制部分，来实现 信号延时、输人设定、运行显示的功能。应用Veril- o苦2〕语言，在Altera的Quartus11WebEditio详3〕软件 环境下进行编程仿真，最后烧写芯片进行系统硬件测试 -err

本章介绍了两个EDA技术的综合应用设计实例:数字闹钟和直接数字频率合成器DDS。-EDA chapter describes the two technologies integrated application design example: digital alarm clock and direct digital synthesizer DDS.