C8051F350单片机24位AD采样程序。

atm89的键盘中断方式控制 附带proteus仿真 -atm89 keyboard interrupt control incidental Proteus Simulation

简易数字电压表的设计,利用单片机AT89S51与ADC0809设计一个数字电压表，能够测量0－5V之间的直流电压值，四位数码显示，但要求使用的元器件数目最少。-Simple digital voltage meter design, the use of single-chip AT89S51 with ADC0809 to design a digital voltage meter, capable of measuring between 0-5V DC voltage value, four digital display, but requires the use of minimum number of components.

通信电源中，整流器模块控制器程序。ATmega16L，8M晶振，使用USART通信中断，使用ADC采集模块数据，使用部分通用I/O口控制模块开关机。-communication power, the rectifier module controller program. Indicator, 8M crystal use USARTs communications interruptions, and the use of ADC data acquisition module, the use of part of general-purpose I/O control module switching machines.

因需要，单片机的键盘扫描和数码管显示共用一口，用定时器实现，原创-Due to the needs of single-chip microcomputer keyboard scanning and sharing a digital tube display with a timer to achieve the original

用51引脚模拟SPI，进行ad7706读写操作。-the source code which use 51 MCU read and write ad7706

Elan EM78P458 AD转换。

The New Computerised Transit System (NCTS) is a European wide system, based upon electronic declaration and processing that was designed to replace the paper based CT system and to provide better management and control of both Community and Common Transit. It involves all EU Member States and the EFTA. The NCTS in each country is connected through a central domain Brussels, to all of the other countries. This provides links between some 3000 European customs offices and replaced the paper based system. In order to connect on-line with NCTS, traders need the facility to generate electronic Transit messages, and the facility to send/receive these messages to/from the IRL - NCTS. Connected traders receive electronic responses advising of key decisions during the procedure, such as acceptance of declaration, release of goods, notification of discharge. It is not be possible for Traders to interface directly with NCTS. They will simply be able to exchange defined structured m

avr 的入门教程 超好 包括初级入门，及avr各种开发工具的介绍及使用说明 -avr super good introductory tutorial, including the primary entry and avr introduce a variety of development tools and use

RS422 RS485技术标准-RS422 RS485 technical standards

用于C51上的modbus协议，经测试可运行，但还不完善-C51 for the Modbus protocol, the tests will be run, but still not perfect