我过龙芯二号的开发，龙芯二号的技术指标。

基于AD89S52的计算器的实现源程序。-Calculator based on the realization of AD89S52 source.

PDA上的CF CARD 文件系统的建立程式-PDA CARD CF File System to establish programs

/// /////主机发送调试程序/// //// C8051F040 Smbus_M_T.c-/// ///// Host debugger////////// C8051F040 Smbus_M_T.c

P89LPC900系列单片机 P89LPC922单片机的ISP下载功能的相关方法-P89LPC900 MCU P89LPC922 MCU ISP download the relevant methods

由"晓风"编写的PLD入门的好教材：pld.rar（中文PDF文档）-from "feng" prepared by the entry PLD good material : pld.rar (Chinese PDF)

9054开发-9054 Development

本设计主要是运用单片机设计一个最小系统――电子时钟，它具有24小时计时功能，能够对时间进行调整，并且能实现时、分、秒的显示，同时还有内设闹钟，时间到时候会响铃，响铃时可以通过按键控制延时再启动或关断。与此同时还设置了整点报时功能；并采用采用了软件去抖的方法扫描键盘，动态刷新显示数码管，并通过查表实现译码输出时间等编程方法；-This design is the use of single-chip design of a minimum system- Electronic clock, it has a 24-hour timer function, capable of time to adjust, and can achieve the hours, minutes and seconds display, but also equipped with alarm clocks, time to When ringing the bell to ring when the button control can delay re-start or shutdown. At the same time also set up the whole point timekeeping function and adopt the use of the software to scan the keyboard shaking method, dynamic refresh display digital tube, and through the realization of decoding look-up table output time programming method

用于测试步进电机，也用于控制步进电机来测试传感器等

51单片机的FIFO(先入先出)循环队列实现-51 SCM FIFO (first-in-first out) Revolving Queuing

采集数据经pcf8591的A/D转换由89S52处理在LCD显示出来的代码 C语言编写-Collecting data pcf8591 the A/D conversion by the 89S52 handle LCD display language of the code C