此程序可以帮助你在没有串口的单片机上,实现串口功能,用C51编程,有利于移植!...

下载工具源代码，用于串口RS232下载，二次下载-download source code

GPIB 控制Agilent 34401A-GPIB control the Agilent 34401A

C++Builde上位机测试程序-C Builde PC testing procedures

这是通过COM口对声波触摸屏控制卡进行仿真测试的程序的源码. BCB-through COM ports on acoustic touch screen control card for simulation testing procedures for the source. BCB

金卡（gold card),俗称84卡，即采用pic16c84芯片的智能卡，读写编程程序。用vb4写的。-gold card (gold card), commonly known as 84 cards, the chips used pic16c84 smart card reader programming procedures. With vb4 writes.

使用RS232串口2，通过Copley电机控制卡控制电机运转的VB程序。文件夹中包含有程序开发手册。 Using RS232 2 port, a VB program is developed for Copley motor control card, by which motors can move precisely. A handbook for program develpoment is involved in the rar file.-The use of RS232 serial port 2, through Copley cards to control motor control motor running VB program. Folder contains a program development manual. Using RS232 2 port, a VB program is developed for Copley motor control card, by which motors can move precisely. A handbook for program develpoment is involved in the rar file.

用于在线仪表的 modbus,仅供参考，-online instrument for modbus connection, for information purposes only, thank you

Zebra 热传打印机控制 串口ActiveX控件 My email: richardlzl@163.com -Zebra thermal printer-control serial ActiveX My email : richardlzl@163.com

485通讯是工业现场用的很广泛的通讯方式，现在仍然在应用-485 communications industry is the scene of extensive means of communication, still in the application

SPCE061A 利用C语言进行软件端口位操作范例-SPCE061A C language for the use of port-operating software paradigm