VHDL版的C51核(MC8051)

maxplus2为开发环境 vhdl编写的 键盘 程序-maxplus2 VHDL development environment for the preparation of the keyboard procedures

A multiplier unit in VHDL

数字时钟，可以实现(1) 显示日期功能（年、月、日、时、分、秒以及） (2) 可通过按键切换年、月、日及时、分、秒的显示状态 (3) 可随时调校年、月、日或时、分、秒 (4) 可每次增减一进行时间调节 (5) 可动态完整显示年份，实现真正的万年历显示 (6) 可显示温度 (Digital clock, can be achieved (1) the date function (year, month, day, hour, minute, seconds as well) (2) through the key switch the year, month, day in a timely manner, minute, second display state (3) at any time adjust the year, month, day or time, minutes, seconds (4) can be added or deleted, a time adjustment (5) can be dynamically complete display Year, the real calendar display (6) to display temperature)

使用vhdl语言实现对led的控制，还有电路仿真-Using vhdl language implementation of the led control, as well as circuit simulation

出租车的计费系统，通过这个文件可以清楚地了解出租车的计费原理。-Taxi billing system, the adoption of the document can be a clear understanding of the accounting principle of a taxi.

这是一个JPEG的编解码的VHDL程序代码-This is a JPEG codec the VHDL code

用verilong hdl语言编写的数据采样程序，A/D采用的是TLC5260-Verilong hdl language used data sampling procedures, A/D using the TLC5260

主要论述了基于FPGA的末制导雷达伺服系统设计。结合末制导雷达讨论其电机控制、二阶伺服系统性能和PID校正算法,利用VHDL语言设计,实现基于FPGA的方位步进电机开环定位控制和俯仰直流电机闭环速度控制的伺服系统。结合实际应用中遇到的问题,提出了基于"反馈控制"理论的有效的补偿算法,该算法提高了伺服系统的稳定性、快速性和精度。(Mainly discusses the design of terminal guidance radar servo system based on Field Programmable Gates Array(FPGA).It includes the system’s electric machine control,second-order servo system performance and PID correction algorithm based on Virtual Hardware Description Language(VHDL) on azimuth stepping motor open loop positioning control and pitch direct current electric machine closed loop speed control of the FPGA servo system.In allusion to some factual problems during its application,presents corresponding effective solutions based on traditional control theory "Feedback Control".The fact proves that these methods can greatly improve the stability,speediness and precision of the original servo system.Additionally,a basic algorithm which can be realized in a terminal guidance radar servo system is given)

基于FPGA的温度控制系统 VHDL 数码管显示温度 ds1820 温度报警(The temperature control system based on FPGA VHDL digital display temperature ds1820 temperature alarm)

说明：  ds1302时钟驱动程序，已在quartus上验证可以是直接使用(DS1302 clock driver, which has been verified on quartus, can be used directly)