about serial communication programming, vc achieve! Multi

串口控制程序一般分为查询和中断两者方式。查询方式适用于简单的应用，简单可靠，但是缺点是需要占用处理器资源，在发送或者接收数据的时候不能做其它的事情，处理器利用率低。中断方式下，在发送或者接受数据的时候处理器还可以做其它的工作，效率较高。-Serial control procedures will generally be divided into two way query and interruption. Query applied to simple applications, simple and reliable, but the drawback is the need to occupy processor resources to send or receive data at the time should not make other things, the processor utilization rate. Interrupt mode, the send or accept data when the processor can do other work, more efficient.

《PC数据采集》源代码-"PC Data Acquisition" source code

windows CE下的串口调试助手, 对做串口相关程序的工程师有用-debug serial port for windows ce

串口通信PC机应用程序-PC serial communication applications

串口通信与工程实践7.1,ModemConnet.dsp,ModemConnet.h-Serial communication with the engineering practice 7.1, ModemConnet.dsp, ModemConnet.h

Visual C++ 串口通信技术与工程实践配套（代码）5.4节-Visual C++ Serial communication technology and engineering practice of matching (Code) 5.4

vb演示Mscomm各种通信功能-vb demonstration of various communications functions Mscomm

一个队串口进行操作的程序，可以作为学习串口编程的资料-A team to carry out the operation of serial procedures, can serve as a learning serial programming data

本串行通信程序利用汇编语言通过BIOS中断调用和DOS功能调用实现PC机双机串行通信。其中，上位机和下位机串行口均为辅串口COM2（口地址为2FXH），对外用9针连接器与令一台PC机连接；BIOS通过“INT 14H”4个中断服务子程序，分别完成串口初始化编程、发送一帧数据、接受一帧数据以及测试通信线状态。本程序分为PC机串口自动测试程序（目的是测试串口好坏）和PC机全双工双机通信程序两个部分。-the serial communications procedures through the use of assembly language BIOS interrupt calls and function calls DOS PC Dual Serial Communication. Among them, PC and the next crew will be supplemented by serial port Serial COM2 (I address 2FXH) external with 9-pin connectors and enable a PC connection; through the BIOS "INT 14H," four interrupt service routines, complete serial port initialization programming, Send a data receiving a data communications test and the state line. The procedures are divided into PC serial automatic test procedure (for the purpose of testing Serial good or bad) and full-duplex PC-machine communication program two parts.

华中科技大学计算机学院接口课程设计.vc制作,上位机下位机模拟商场贵宾卡系统.使用access数据库.-Huazhong University of Science and Technology School of Computer Interface Design courses. Vc production, PC lower computer simulation malls VIP system. The use of database access.