Component-based Embedded Systems Development And Application

With the increasingly widespread use of the embedded system, It has more and more application programmers. According to the characteristics of embedded system that have limited resources. Therefore ,speed and scale application programmers are limited. One of methods of settling to above problem ,To use cutted middleware development flat of client and component technology will developed in application programmers.CORBA is analyzed in depth , and designed and implemented middleware model of client on QPE, Due to characteristics of development flat of QPE , Two kinds of work method of CORBA .namely static invocation is compared with dynamic invocation.thus, QORB is applied static invocation . middleware model of client in QPE flat is designed and implemented .according to QPE development flat,using static invation , we must cut down strongly MICO System .implementing the least of ORB of client and according with CORBA Specification , we solve the problem of limited resource . using the protocol of GIOP/IIOP, application programmers of client invocate object of remote trough middleware development flat .Because of requiring of system's resource ?server is usually desktop computer .There are two better popular method of programmer's design, Object and Component Technology .Through deeply studying them , applying component method of designing programmers in designing middleware flat of client and CORBA Interface Definition Language are designed component interface of Personal Information Management .implemented application programmer of client and server. Through QORB application programmer of client invoke object object of server, and it implement this request, through QORB the result of implement send application programmer of client. The speed of application system is better .The same code is frequency applied. The time of development shorten . The stability and reliability of system are advanced . Because the definition of component interface is invariability , the upgrade of application programmer is easier.