多通道串口通信的测试程序，简单实用，适合初学者。

SIEMENS西门子S7-200PPI通讯协议-SIEMENS Siemens S7-200PPI communication protocol

此例为单片机串口的应用!将串口外接一个串入并出的数字芯片,可实现在单片机的串口扩展成并口输出功能!-This case the application for the single-chip serial! Will add a string to the serial port and a digital chip can be realized in the single-chip serial port expansion into a parallel port output function!

TC中的串口编程基础-the TC basis Serial Programming

MSComm32.ocx串口通信程序。测试时不要用虚拟串口，直接将串口2引脚与3引脚短接。-MSComm32.ocx serial communication program. Not to test with virtual serial port, serial port directly to 2-pin and 3 pin shorted.

串行数据标准选用之我见 RS-232、RS-422与RS-485标准及应用 转换器的构成 -Selection of serial data standards, I see the RS-232, RS-422 and RS-485 standards and the application of the composition of converter

上位机和单片机进行串口通信的调试VB源码-PC and MCU for serial port communications VB source code debugging

AVR单片机ATmega128的串口通讯程序，根据输入的数据，点亮不同的指示灯，可以验证串口通讯的正确性。-AVR ATmega128 serial communications procedures, data entry, lit the lights come on, can verify the correctness of serial communications.

可以控制串口RTS DTR引脚电压分布的小程序

一个用8255的串口编程-8255 with a Serial Programming

获取当前机器的COM口的数量，包括usb转换的串口-access to the current machinery of the number of COM ports, including USB Serial Conversion