
Dariusz PolokSilesian University of Technology
Dariusz Polok
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Publications (7)
The paper deals with a number of problems related to implementation of embedded systems that use single-board computers. These considerations are carried out on a specific model of such a computer, namely DIMM-PC. Actually, this computer is a power-saving and a comprehensive implementation of a typical PC computer, equipped with a `hard disk' emula...
The paper presents an idea of a Programmable Logic Controller for binary control implemented in an FPGA device with use of custom designed implementation tools. It is an extension of previously proposed architecture that is mainly limited by hardwired connection. Based on connection resources available in FPGA the new architecture is proposed. Poss...
In pace with the technical progress in controllability of mechatronic systems including machines and industrial equipment, the systems of industrial controllers (both PLC and microprocessor ones) more and more frequently use Ethernet-based networks for communication with supervising centres and surveillance systems. The Internet offers unsurpassed...
The paper presents a comparative approach to development of industrial type controllers by means of two methods: using factory-made Programmable Logic Controllers and designing the controllers on the basis of one-chi p microcontrollers. Advantages and shortages of the both methods are presented, although the authors prove that microcontrollers shou...
The paper presents new approach to design and implementation of an arithmetic calculation unit within FPGA devices. The unit is purposefully designed and takes advantage of specific architectural enhancements. Optimal implementation result and high speed of operation is achieved by direct event driven architecture that allows to branch the process...
The paper reviews basic digital programmable structures and discusses feasibility of practical utilization of macro-cells that are basic components thereof. A number ofdisadvantages and flaws ofthe mentioned macro-cells are pointed out and such modifications are proposed that improve effectiveness of their implementation. The proposed alterations c...
The paper presents the idea and practical solution how to implement the well-known and widely used VME bus for the need of the ISA bus that is used by the module of the single-board computer DIMM-PC. Such a solution was imposed by the desire to take advantag e of perfectly developed and tuned hardware layer of the VME bus for the needs of the both...