由"晓风"编写的PLD入门的好教材：pld.rar（中文PDF文档）

80c51f020，i2c管理时钟芯片PCF8583,-80c51f020, i2c management clock chip PCF8583,

motorola 16 mcu的EEPROM程序-16 mcu EEPROM process

ch451键盘LED管理芯片的驱动程序,很好用的,设计很标准的代码-ch451 keyboard LED chip management of the driver, the good design is the standard code

MSP430系列 RTC源程序下载 使用430实现闹钟程序，可以显示年月日；时分秒，到达闹钟时间蜂鸣器报警。-MSP430 Series RTC source download alarm clock to achieve the use of 430 procedures, can show date when minutes and seconds, time to reach the alarm clock buzzer alarm.

超声波测距,包括有pcb原理图，用c写的程序，还有详细的说明-Ultrasonic ranging, including schematics pcb with c written procedures, detailed instructions have

I-WIRE协议的DS18B20程序,用于温度测量-I-WIRE Agreement DS18B20 procedure for temperature measurement

VC++下与C8051F340单片机的USB通信程序,采用批量传输协议! 可作为C8051F340开发USB的例程.

max7219显示程序，用C语言编写，可用keil运行-max7219 display program

亲测：基于51单片机的八路抢答器，与其他同类源码比，功能强大，有查询，设置，抢答，答题等所有实用功能。-Pro-test: Based on 51 single-chip eight-way of the Answer, and with other source than the powerful, a query, settings, Answer, answer all practical function.

USB转lpt 68013 驱动方案 USB转lpt 68013 驱动方案-Lpt 68013 Driver USB to USB transfer program lpt 68013 driver program