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Design and Implementation of a Multitask Operating System Kernel Running on HC08
Damborský, Roman ; Růžička, Richard (referee) ; Strnadel, Josef (advisor)
Software for embedded systems is usually designed for performing one particular task. If there is need to serve more tasks at once, solution is used to be dedicated without potential reusability for another application. That is why I've designed an interface which allows simultaneous execution of single tasks independently of their character. Kernel is implemented in consideration of reusability. I analyse individual approaches to solution. I~used Round--Robin algorithm for implementing tasks management. Multitasking is achieved by periodical switching of single tasks. Interrupt subsystem is being used for this. As a target architecture, Motorola HC08 microcontrollers were chosen.
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Real-Time Operating System with Fixed Task Priority for Raspberry Pi
Kolář, Josef ; Peringer, Petr (referee) ; Janoušek, Vladimír (advisor)
The main goal of this work is to create a support for an open-source real-time operating system on the computer Raspberry Pi 3B+. The project FreeRTOS is selected as a great candidate for further work. The runtime environment and support for user-space applications are presented. Two demonstration applications serve as proofs of support, the first one uses two periodic tasks and reports their state to the serial interface. The second demonstration application runds the same periodic tasks, but reporting the state is done using the CAN bus, for which is the driver realised. The result of this thesis is a working system FreeRTOS for Raspberry Pi 3B+ computer with support for time-critical usages.
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Real-Time Operating System with Fixed Task Priority for Raspberry Pi
Kolář, Josef ; Peringer, Petr (referee) ; Janoušek, Vladimír (advisor)
The main goal of this work is to create a support for an open-source real-time operating system on the computer Raspberry Pi 3B+. The project FreeRTOS is selected as a great candidate for further work. The runtime environment and support for user-space applications are presented. Two demonstration applications serve as proofs of support, the first one uses two periodic tasks and reports their state to the serial interface. The second demonstration application runds the same periodic tasks, but reporting the state is done using the CAN bus, for which is the driver realised. The result of this thesis is a working system FreeRTOS for Raspberry Pi 3B+ computer with support for time-critical usages.
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Normality of the exception? Crisis Governance in reforming the Asylum and Migration Policy of the European Union
Kaleta, Ondřej ; Střítecký, Vít (advisor) ; Braun, Mats Rickard (referee) ; Lupták, Ľubomír (referee)
This doctoral thesis examines the issue of crisis governance of the European Union in the context of migration developments after 2015. The author investigates how relevant EU institutions (European Commission, Council of the EU, and European Council) construct exceptionality within the common asylum and migration policy and what might be its impacts on the functionality of this policy. Theoretically, the research is based on the concept of "state of exception" originally introduced in the works of Carl Schmitt and Giorgio Agamben. The main objective of the thesis is to analyze and interpret the extraordinary migration measures from 2015 to 2018, which were proposed and implemented by the EU political actors to address the migration situation. The institutional level is further broadened and contextualized by including three EU Member State governments - Hungary, Austria, and Germany - and their involvement in the interactive shaping of emergency policies. The author studies how the exception is constructed in the EU official discourse, the relationship between exception and normality, and the exercise of power to create a state of exception at supranational/intergovernmental level of the EU as an international organization. The thesis approaches the topic using critical discourse analysis. It...
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The Causes of Iraqi War: Why the US Administration decided to invade Iraq in 2003
Bartková Sodomová, Renáta ; Karásek, Tomáš (advisor) ; Karlas, Jan (referee)
The thesis: "The Causes of Iraqi War: Why the US Administration decided to invade Iraq in 2003" focuses on explanation why the administration of the USA made that step. The specification of the roots of war is based on five causes and seventeen subcauses according to the essay of Stephen Van Evera and other scholars, and the paper trough the methodology of text's analyzes investigates behavior, decision-making process and motivations of the US administration (the level of units) and some steps of the US president G. W. Bush (individual level) in the process leading to the war in Iraq. Concerning the causes of war, the paper introduces different concepts of the offense-defense balance and analyzes whether the balance was disrupted. Secondly, it examines the role of cumulative resources in Iraq like oil, territory and state structures and it shows how they influenced the decision. Third, it searches for the linkage among an emergence of a new threat and responses to it which mouthed to the acceptance of the concept of the first move advantage. Fourth, the thesis accounts for the roots of misperception, where they originate and how they operated in perception of the US administration of the Iraqi threat. Finally, the investigation of the last root of conflict explains why and how windows of...
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National Security Strategy of the United States of America 2002: Imperial Grand Strategy?
Ludvík, Jan ; Raška, Francis (advisor) ; Anděl, Petr (referee)
This paper offers a thorough examination of the United States 2002 National Security Strategy. The document is explored in its broader context, which allows us to understand it in its uniqueness and therefore offer sufficient interpretation. Special attention is devoted to the decision making process of the U.S. National Security Council due to primary responsibility of NSC for coordination of American security policy. Further attention is paid to three particular problem- related parts that are often considered to be the most revolutionary issues of this document. Preemption, unilateralism and U.S. support for the spread of democracy are examined in the broader context of the U.S. foreign policy tradition, American identity and historical development. On the basis of thorough research, the paper supposes that all major parts of this particular document are rather compatible with the development of U.S. security policy and they represent rather the outcome of developments than a fundamental change or reformulation of the strategy. The role of strategic documents is implicitly examined as well, while the study suggests that it should be perceived as a product of bureaucratic politics as summarized in a model by Graham Allison.
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Normality of the exception? Crisis Governance in reforming the Asylum and Migration Policy of the European Union
Kaleta, Ondřej ; Střítecký, Vít (advisor) ; Braun, Mats Rickard (referee) ; Lupták, Ľubomír (referee)
This doctoral thesis examines the issue of crisis governance of the European Union in the context of migration developments after 2015. The author investigates how relevant EU institutions (European Commission, Council of the EU, and European Council) construct exceptionality within the common asylum and migration policy and what might be its impacts on the functionality of this policy. Theoretically, the research is based on the concept of "state of exception" originally introduced in the works of Carl Schmitt and Giorgio Agamben. The main objective of the thesis is to analyze and interpret the extraordinary migration measures from 2015 to 2018, which were proposed and implemented by the EU political actors to address the migration situation. The institutional level is further broadened and contextualized by including three EU Member State governments - Hungary, Austria, and Germany - and their involvement in the interactive shaping of emergency policies. The author studies how the exception is constructed in the EU official discourse, the relationship between exception and normality, and the exercise of power to create a state of exception at supranational/intergovernmental level of the EU as an international organization. The thesis approaches the topic using critical discourse analysis. It...
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Online scheduling of multiprocessor jobs with preemption
Šimsa, Štěpán ; Sgall, Jiří (advisor) ; Kolman, Petr (referee)
Abstract. The thesis is devoted to the problem of online preemptive scheduling of mul- tiprocessor jobs. It gives a summary of previous work on this problem. For some special variants of the problem, especially if we restrict the sizes of jobs to one and two, new results are given, both in the terms of lower bounds and in the terms of competitive al- gorithms. A previously published lower bound is showed to be computed incorrectly and it is replaced by a correct lower bound in this thesis. An algorithm is presented for the special case of four processors and sizes of jobs one and two that is conjectured to achieve the best possible competitive ratio.
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Design and Implementation of a Multitask Operating System Kernel Running on HC08
Damborský, Roman ; Růžička, Richard (referee) ; Strnadel, Josef (advisor)
Software for embedded systems is usually designed for performing one particular task. If there is need to serve more tasks at once, solution is used to be dedicated without potential reusability for another application. That is why I've designed an interface which allows simultaneous execution of single tasks independently of their character. Kernel is implemented in consideration of reusability. I analyse individual approaches to solution. I~used Round--Robin algorithm for implementing tasks management. Multitasking is achieved by periodical switching of single tasks. Interrupt subsystem is being used for this. As a target architecture, Motorola HC08 microcontrollers were chosen.
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