com编程需要的一个delphi控件

南京邮电大学现代信号处理课程 郑宝玉老师的上课课件,非常实用-Nanjing University of Posts and Telecommunications of modern signal processing courses ZHENG Bao-yu of the class teacher courseware, very useful

本代码可以帮助程序员模拟实现简单的串口编程-The simulation code can help programmers realize simple serial programming

AVR实现软USB转RS232的全部资料-AVR USB to achieve soft RS232 all the information

性能不错，大家一起学习一下！可以用到window mobile 6-GOOD

/*CHECKED * Function: time.c Project: DNP * * * * DESCRIPTION: * * This file contains functions for converting between * DNP time format and RTU time format (rtc counter type). * * DNP format is to express the time in the number of milliseconds * since the start of 1970. * * * REVISION HISTORY: * * Num Modified by Date Reason * --- ----------------------- --------- ------------------------------- * * */ -/*CHECKED * Function: time.c Project: DNP * * * * DESCRIPTION: * * This file contains functions for converting between * DNP time format and RTU time format (rtc counter type). * * DNP format is to express the time in the number of milliseconds * since the start of 1970. * * * REVISION HISTORY: * * Num Modified by Date Reason * --- ----------------------- --------- ------------------------------- * * */

利用vc直接对打印机进行控制，输入一行就停止，单行依次打印-use vc directly to the printer to control the importation and his entourage stopped, followed by single Print

VC6请使用 LsCommDemo(for vc6).zip VC7请使用 LsCommDemo(for vc7).zip 作者：Liu_sir VC知识库 http://www.VCKBASE.com 多线程,多接收模式串口类LsComm相关文档 多线程,多接收模式串口类LsComm 作者:Liu_sir 所以参照Delphi中的SpComm设计了一个类CComPort,对CSerialPort进行了2次封装,主要目的是简化串口的使用.使其用简单的代码就可以完成串口通讯的过程.并提供了一个Demo程序演示了CComPort的使用 多线程，多接收模式串口类 LsComm 之二 作者:liu_sir 实现了一个简洁易用的多线程串行通讯接口,可以切换查询和自动接收模式,进行对串口数据收发-err

射频卡读卡程序,射频IC卡识别技术，通常由载有密码的射频IC卡来代替传统的键盘密码。读卡模块读出密码后，即产生输出电信号，继而驱动执行机构动作，或将密码（如卡号）送给外围对接设备（如电脑或单片机等）。采用射频卡读卡模块及感应体构成的特定系统中，因射频卡内码信号唯一且不可复制，因此射频卡不仅杜绝了非法复制密码，还为各种控制采用信息化管理创造了条件。-RF card reader procedure, radio frequency identification technology IC cards, usually containing the password from the RF IC cards to replace the traditional keyboard password. Reader module read out a password, as a result, the output signal, and then drive the implementation agency action, or passwords (such as logging) gave the external docking equipment (such as computer or microcontroller, etc.). RF card reader module consisting of sensors and the specific system, RF signal code card but not the only copy, RF Card not only prevents illegal copying passwords, but also controls the use of information management to create the conditions.

对原始的 ALOHA 协议的改进是"时隙 ALOHA"，介绍了离散的时隙，并增加最大的吞吐量。一个站可以发送只有初时隙和因而减少碰撞事故。在这种情况下，我们只需要对传输尝试 1 帧时间内不连续 2 帧-次，担心，因为在每个时隙期间只能发生碰撞。

中文RFC文件，无需翻译，对学习很有帮助！