Introduction to the comms server

This section aims to provide all the information you need in order to use RS232 serial ports on Symbian OS. The comms server RCommServ, together with the RComm client class, contain the recommended methods for doing this. A glass teletype terminal application is used as the sample project to illustrate how all this works.

Port configuration and handshaking are largely responsible for the way that serial communication devices behave, and a significant section is devoted to setting ports up. Since communications is a real-time activity, we also cover the issues involved in writing efficient code, and because such code can behave differently on various hardware platforms, we also discuss the problems that can occur when developing communications software.