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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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Programming of processors in 32- or 64-bit operation systems
Rášo, Ondřej ; Kyselý, František (referee) ; Balík, Miroslav (advisor)
Main topic of this thesis is Win32 application programming interface and symbolic instructions programming language. It can be divided into four parts. First part sums the basics of 32-bit programming in symbolic instructions language in Windows. Second part describes the Win32 resources for computer intercommunication. Third part presents, describes and comments selected problems in symbolic instructions language.Last part covers a creation of an example application. This application and its parts will be the content of computer exercises in VUT Brno FEEC subject Počítače a jejich periferie.
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Communication protocol implementation into signal processors
Červenec, Radek ; Daněček, Vít (referee) ; Herman, Ivo (advisor)
Práce se zabývá studují, modifikací a návrhem komunikačních protokolů a jejich implementací v digitálních signálových procesorech v jazyku instrukčních adres. Také zkoumá strukturu elektro-akustické jednotky EPIS 2.45. Popis jednotky je zaměřen na její softwarovou část a to zejména na operační systém založený na kooperativním multitaskingu. Pro dosažení úspěšného návrhu a implementace komunikačních protokolů se práce zaměřuje také na základy vícevrstvé síťové architektury. Poté je již zkoumána skutečná síť (Koris Net) společně s jejími, ale i dalšími komunikačními protokoly, jako například protokol Modus. Popis je doplněn o příklady zdrojového kódu jejich implementace v digitálním signálovém procesoru (ADSP 2191M). V práci je mimo jiné prezentován navržený komunikační protokol pro vyčtení souboru z palubního počítače připojeného k jednotce na sběrnici Modus. Společně s tím je také obsažena navržená úprava protokolu, tak aby bylo možné předávat stažené soubory přes radiové rozhraní do centrálního počítače.
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Operating System for Embedded Applications Control
Kolarík, Tomáš ; Strnadel, Josef (referee) ; Šimek, Václav (advisor)
This thesis deals with selection of operating system for embedded control unit of steam sterilizer with color touch screen. Theoretical part of the thesis deals with the architecture of embedded systems and operating systems with focus on process management. In addition, the thesis deals with a device for which the operating system is selected, the reason for its implementation, advantages and disadvantages in the control system. The thesis also contains categorization of operating systems by way of use. Of these, two open source operating systems eCos and FreeRTOS are described more thoroughly. The code of FreeRTOS was modified from GCC compiler to IAR compiler. The last part of the thesis describes architecture and functionality of the created demo application. Using the touch screen and color display, the application enables drawing of color schemes, which can be transferred to a computer using serial communication.
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Operating System for Embedded Applications Control
Kolarík, Tomáš ; Strnadel, Josef (referee) ; Šimek, Václav (advisor)
This thesis deals with selection of operating system for embedded control unit of steam sterilizer with color touch screen. Theoretical part of the thesis deals with the architecture of embedded systems and operating systems with focus on process management. In addition, the thesis deals with a device for which the operating system is selected, the reason for its implementation, advantages and disadvantages in the control system. The thesis also contains categorization of operating systems by way of use. Of these, two open source operating systems eCos and FreeRTOS are described more thoroughly. The code of FreeRTOS was modified from GCC compiler to IAR compiler. The last part of the thesis describes architecture and functionality of the created demo application. Using the touch screen and color display, the application enables drawing of color schemes, which can be transferred to a computer using serial communication.
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Multitasking as a result of audiovisual media convergence
Mičke, David ; Moravec, Václav (advisor) ; Kasík, Pavel (referee)
The primary objective of this work is to determine the extent of media multitasking, as an increasing phenomenon in receptioning media content in the last 20 years; on news channels broadcast. The research sample consists of Czech station CT24, BBC and international version of the American CNN. In the theoretical section, the media convergence is explained in the basic terms and concepts; Following to this section, the thesis includes also a part dedicated to particular consequences of convergence in audiovisual media, which is associated with the multitasking. Moreover, the thesis also reflects multitasking's origin, reasons of its development and its impacts on human cognitive perception. On account of multitasking as a developing form of media reception, news channels react. In image analysis of technical codes associated with multitasking, which was undertaken at all channels for one week, are highlighted multitasking specifics of those channels. Included is a comparison of the differences between those news channels.
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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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Communication protocol implementation into signal processors
Červenec, Radek ; Daněček, Vít (referee) ; Herman, Ivo (advisor)
Práce se zabývá studují, modifikací a návrhem komunikačních protokolů a jejich implementací v digitálních signálových procesorech v jazyku instrukčních adres. Také zkoumá strukturu elektro-akustické jednotky EPIS 2.45. Popis jednotky je zaměřen na její softwarovou část a to zejména na operační systém založený na kooperativním multitaskingu. Pro dosažení úspěšného návrhu a implementace komunikačních protokolů se práce zaměřuje také na základy vícevrstvé síťové architektury. Poté je již zkoumána skutečná síť (Koris Net) společně s jejími, ale i dalšími komunikačními protokoly, jako například protokol Modus. Popis je doplněn o příklady zdrojového kódu jejich implementace v digitálním signálovém procesoru (ADSP 2191M). V práci je mimo jiné prezentován navržený komunikační protokol pro vyčtení souboru z palubního počítače připojeného k jednotce na sběrnici Modus. Společně s tím je také obsažena navržená úprava protokolu, tak aby bylo možné předávat stažené soubory přes radiové rozhraní do centrálního počítače.
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