LPM e LCM: linguagens para programação e configuração de aplicações de tempo-real.

Abstract

This work presents the implementation of an environment oriented the development of real-time control software. The environment seeks to meet essential requirements for systems programming distributed Process Control and basically consists of a methodology and two languages: the Module Programming Language - LPM and the Module Configuration Language - LCM. In the model adopted for the environment, the development of an application and constituted in two stages: the LPM programming of the modules that implement the system functions and the LCM configuration of the application from the available modules. This feature makes it possible to incorporate dynamic reconfiguration mechanisms and fault tolerance. The communication between modules is done through the exchange of messages through a interface consisting of logical input and output ports. The configuration of an application corresponds to an LCM program that specifies the component modules of the application and the interconnection of their ports. The implementation of languages ​​was performed on a PCS computer CADMUS-9200 through the use of the YACC and LEX tools and is available to execute in an IBM-PC compatible environment. Languages ​​are supported by a real-time core whose interface is presented in the dissertation. Currently the environment only supports static configuration and processing centralized. A consequent evolution of the work and the extension of the environment in order to enable the distributed execution of applications.