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LCM-100 User’s Manual

Chapter 1 General Information

1.1 - Introduction

The major purpose of this module is to provide an easier

man-machine interface for those computing systems in which

applications friendly operation is a “must”. In traditional computing

system design, proprietary keypad and LCD display interfaces are

implemented and these interfaces are usually different from

system to system. The design goals of this interface are:

A. A single interface fore both LCD display and keypad is

required.

B. This interface should be available in every computing system

C. The communication implementation should be OS

independent.

Our solution is to use “Serial port” as the interface for both LCD

display and keypad. A simple protocol is further defined so that

applications can directly communicate with this module no matter

what the operating system is.

There are only two connectors in this module, as shown in Fig 1;

power connector and serial port connector.

Figure1.

Power connector

Serial port

connector

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