This program was designed as a utility tool to allow the user to send and recieve data from a serial com port while monitory the byte data. If a loopback ciruit is made on the com port(jumper send to recieve DB9 pins 2 & 3) a developer can also monit

USB开发源代码 值得参考 程序很小 但很实用-USB developer source code should refer to a small but very useful program

基于wince的串口驱动程序，是每个wince开发者必须会的-Based wince serial driver, is that each developer must be able to wince。