80C51F020 SPI interface FOSS

用ADC0809做成的数字电压表 内部带有完整的原理图 仿真图 程序-ADC0809 made with digital voltage meter with a complete internal schematic diagram simulation procedures

基于80C51的一个例子程序,实现了流水灯操作-an example of the process and realized the water lights operation

此程序为cstn_lcd液晶驱动，目前市面上的许多彩屏手机都是CSTN-This procedure for cstn_lcd LCD driver, the current market, many are CSTN color screen mobile phone

EEPROM仿真器有原理图，源代码等详细说明，是硬件调试的好帮手

NE5532+TDA2030 原理图及PCB-NE5532+ TDA2030 Schematic and PCB

计算CRC16/CRC8/CRC32的程序，可获得CRC-CCITT/CRC-16/CRC-8/CRC-32的计算结果。 提供Delphi源代码和MCS51单片机的汇编源代码，分别采用两至三种不同算法实现。有比较详细的调用和使用说明。 更新历史: 2003/05/04 新增CRC-8算法的实现。 2004/02/02 修改CRC-8算法，新增CRC-32算法，增加比较详细的调用和使用说明。-CRC16/CRC8/CRC32 calculation procedures available CRC-CCITT/CRC-16/CRC-8/CRC-32 the calculated results. Delphi provide source code and compile the MCS51 source code, adopted two to three different algorithm. A more detailed calls and use. Update History : 2003/05/02 new CRC-8 algorithm implementation. 2004/02/02 changes CRC-8 algorithm, the new CRC-32 algorithm, adding more detailed calls and use.

at89s51的中文资料，方便单片机初学者学习参考，并且翻译质量基本上可以。-English at89s51 of information for beginners to study single-chip reference, and basically the quality of translation.

单片机最小系统，使用液晶显示，能够读取键盘值，具有综合扩展功能-The smallest single-chip system, the use of liquid crystal display, the keyboard can read the value of a comprehensive expansion of functions

_传感器的理论与设计基础及其应用.详细介绍了各种常用传感器的特性与基本的应用-_ sensor design and the theory and its application. A detailed description of the various sensors used with the basic characteristics of the application

接上级主管部门通知，为了保障奥运会的网络信息安全，净化网络环境，促进互联网信息服务健康有序发展，从即日起至2008年9月20日，我司将对所有接入的网站进行网络信息安全的彻底排查。-Then the competent authorities to inform their superiors, in order to protect the Olympic Games in network information security, clean up the network environment and the promotion of the Internet Information Service healthy and orderly development, and from now until September 20, 2008, I will have all access to the Division