6533b826fe1ef96bd1283afd

RESEARCH PRODUCT

FPGA-based embedded Logic Controllers

Marek WegrzynAndrei KaratkevichAlfredo Rosado MuñozMarian Adamski

subject

Finite-state machineSequential logicTheoretical computer scienceComputer scienceProgramming languageHardware description languageLogic familycomputer.software_genreProgrammable logic deviceLogic synthesiscomputerHardware_LOGICDESIGNRegister-transfer levelcomputer.programming_languageLogic optimization

description

In general case, reconfigurable logic controllers (RLC) are included into reactive digital embedded systems, carrying out control for several processes proceeding concurrently. The paper presents a practical application of a formal, rule-based specification language in Gentzen sequent logic, which is used as an intermediate textual description of a control interpreted Petri net. On the other hand exactly the same description serves also as logic design expressions, related with different versions of functionally equivalent concurrent state machine models, considered on Register Transfer Level. The symbolic rule-based specification of Petri net-based embedded Logic Controllers (LCs) can be step-by step formally transformed into the final specification of concurrent state machine model, closely related with VHDL description, suitable for a direct mapping in reconfigurable logic devices. In this paper it is proposed novel compact form of logic descriptions, directly based on event-oriented specification, where it is assumed that macrocells can be implicitly formed by synthesis tool as containing virtual T flip-flops.

https://doi.org/10.1109/hsi.2014.6860484