这是我做的关于考勤机的一些测试程序，请大家积极下载，很有帮助。...

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.

这是一个对modem编程的一个小程序, 对串口操作并发AT指令集.-this is a modem programming of a small program on serial operation with AT command set.

一个串口通信的软件，需要spcomm组件，请注意-a serial communication software, the need spcomm components, please note

简单的串口通信程序!通过按键来实验是否将主机中相应缓冲区中的内容传送给从机!主机状态改变,按键传输时,从机状态也将改变!-Simple serial communication program! Through the keys to the experiment whether or not to host the corresponding buffer content transmitted to the slave! Host state changes, button transmission, from the state machine will change!

Wince串口源码,源码简单不过很实用哦-source, the source code is very simple but practical oh

学院系统，源代码详细描述，如有疑问，请与我联系。

51单片击串口中断接收程序-51 single blow interrupt reception procedures

本源码采用spcomm串口控件，接受数据采用线程方式，这是一个串口测试工具，可以用来做串口监听等。非常适合使用delphi开发串口程序的程序员做参考！-the source used spcomm Serial Control and accept data using threads, it is a serial testing tools can be used to do Serial wiretapping. Delphi is very suitable for the development of Serial procedures programmers refer!

串口通讯使用说明 在两台机器运行serealcom.exe， 但必须保证用串口线连接， 选择串口时如出现error, 表明此串口正被其它设备使用。-serial communications for use of the two machines running serealcom.exe, but must ensure that the use serial link, choose when and if there Serial error, the expression of this Serial other equipment is being used.

原来利用nec的Uart功能，做一个全双工的Uart信息传输。是nec的样本程序。