一个比较简单的BCB串口源代码，稍微加以改变就可以进行串口的应用了...

自编的串口通信程序，支持一些简单命令-self serial communication program to support some simple orders

这是一个西门子 ModBus 协议的通讯调试软件。（原码）-This is a Siemens ModBus Protocol communications software debugging. (Original code)

我个人收集的C++builder 多线程串口通信方面的-my personal collection of multi-threaded C builder of serial communication Wanton

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

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.

C51下的 485通讯程序. 包括 主机 和从机的程序. 测试通过了的-C51 under the 485 communications procedures. Including mainframe and from the plane procedures. Pass the test

这是通过COM口对声波触摸屏控制卡直接进行数据包解读的程序源码. BCB-through COM ports on acoustic touch screen control card data packets directly interpret the procedures source. BCB

用于编程的通信控件 该通信控件有助于你的编程 有利于拓展思路-Communication control for modbus

45db081的读写程序，应用于spi总线的读写，在keil c环境下编译通过-45db081 read and write procedures for the 20 bus to read and write, the c51 c compiler environment through

实现串口的数据收发，设置串口的打开，波特率设置，收发进制转换-Serial data transceiver, set to open the serial port, baud rate settings, send and receive hexadecimal conversion