Homologação do protocolo L3: uma aplicação para verificar o uso correto do protocolo em um periferico

Abstract

The L3 protocol is responsible for defining a data packet which will serve for communication between a peripheral and a master. It is a protocol used internally by the LMI (Laboratory of Measurements and Instrumentation) of the UFPB (Universidade Federal da Paraíba), thus already having its documentation specified. The idea of ​​a protocol homologator is to validate the sending of the packet in order to clarify whether the instruction was executed correctly or not. Thus the uses of these instructions vary according to the peripheral to be used. It is intended to register the peripherals, emphasizing the codes they implement and the fixed value fields of the package. From the documentation of the protocol and the domain that will be applied, it will be useful to register in the database for each peripheral attesting how it should receive and respond to a packages; to test it, and validate it by the application. It will also need: a peripheral to test the homologation, and the generation of a textual report by the homologador. In order to develop the application of the homologator, it will be necessary to specify its operation, structure the database, define the man-machine interfaces and the hardware interface, and use a peripheral to test the homologation. For this purpose, it is essential to use the use-case diagram, Entity- Relationship model, Model-View-Controller model in the application, to design the graphical interfaces, to draw up the application flowcharts and to define the development process. As a result, it is expected to reach the functional and non-functional requirements of the application, ranging from its desired operation, the characteristics and internal aspects of the system, to the manipulation of input and output data to the user. It is expected that the approval system will be used in future projects that use the L3 protocol, in order to verify that such projects have actually made the correct use of the protocol in their peripherals. Improvements to the approval system are still think, and future maintenance is welcome.