Global ETD Search

1	Interface pro diagnostickou sběrnici (SMBus/I2C) pro akumulátory / Interface for diagnostic busbar (SMBus/12C) for accumulators Pintér, Zoltán January 2013 (has links) The first chapter of the master´s thesis deals with the analysis of problems indesigning of devices, which include individual steps of the designing of the device and the choice of the most suitable option. It deals with the analysis of the proposed assignment and requirements for this device, analysis of battery management chip that the device should be able to communicate with, analysis of the I2C/SMBus communication protocol which is used for communication between the device with the battery management chips and possibilities of communication of the device with computer. The second chapter deals with the communications via USB bus and the description of this communication. The next step is dedicated to the selection of a programmable microprocessor Atmel AT90USB1287, describes his pin configuration, the possibilities, describes the way of USB interface connection, the method of the I2C/SMBus interface connection and its protection. In the last part of the this chapter the thesis describes Atmel microcontroller programming, specifically describes how to program I2C/SMBus communication, USB communication and how to write a program to the microprocessor. The third chapter of the thesis deals with the design of a single device, and components like a scheme of the connection and the concept of functional realization of the communication with device. The fourth chapter deals with the development of the device itself. Describes the parts of final involvement and describes the parts of the final program for microprocessor, such as communication with SMBus device and communication through the USB bus. The fifth chapter is devoted to the development of communication applications in Java. This section describes the different elements of applications such as communication with USB devices, data storage and open for viewing. The last chapter presents the final device and the final communication application.
2	Univerzální analyzátor sériových sběrnic / Universal Analyzer of Serial Buses Gajdoš, Matúš January 2009 (has links) The purpose of this master’s thesis is to design and to realize the universal analyzer of serial buses. At the beginning there are described in detail specifications and properties of buses IC, SMBus, PMBus and of the UART interface. The second part is targeted especially to design and to realize the control unit, which is the main part of the whole analyzer. It provides connecting to the unknown bus, to buses IC, SMBus, PMBus and SPI and to the UART interface. The main part of the control unit is the microcontroller PIC24HJ128GP204, which partially analyses connected bus. In the next part there is created the user application for PC, which controls and sets the control unit and receives from it partially analyzed data through the USB port. These data are used for the rest of the analysis that is done by the user application. Results may be presented to user in graphical or text form. The user application provides export of results into some of image formats. Supported formats are PS, SVG, PDF, PNG and BMP. In case of the control unit is not available, the user may choose the simulator to simulate some functions that the application provides. It supports simulation of the analysis of the unknown bus and the IC bus. The user application also contains the function of the generating own signals. Signals can be created interactively by using the mouse in the graphical representation of this signal. They can be sent to the control unit and after that it applies them to output. This function is not supported in current version of the control unit software. The user application includes some items, which do not have implemented any methods and they are prepared for the future upgrading of the analyzer. It means especially user controls and components for signal conversions between any buses.
3	Interface diagnostické sběrnice pro akumulátory / Accumulator diagnostic bus interface Chytka, František January 2013 (has links) The thesis deals with design and construction of diagnostic device for batteries. In the analysis I described and compared well known I2C bus and quite similar SMBus. The latter bus is used in the laptop batteries called Smart Battery. The design includes the USB bus, which I described briefly in analysis too. I suggested a several designs, discuss them and build the best one of them. The realization of the diagnostic device includes construction aspect and programing aspect. Both aspects are described in the thesis. At last, the results of test diagnostic of several batteries carried out by designed device are introduced.
4	Design and implementation of a high-speed PCI-Express bridge Börjesson, Mandus, Gerner, Håkan January 2019 (has links) This master thesis will cover the prestudy, hardware selection, design and implementation of a PCI Express bridge in the M.2 form factor. The thesis subject was proposed by WISI Norden who wished to extend the functionality of their hardware using an M.2 module. The bridge fits an M-Key M.2 slot and has the dimensions 80x22 mm. It is able to communicate at speeds up to 8 Gb/s over PCI Express and 200 Mbit/s on any of the 20 LVDS/CMOS pins. The prestudy determined that an FPGA should be used and a Xilinx Artix-7 device was chosen. A PCB was designed that hosts the FPGA as well as any power, debugging and other required systems. Associated proof-of-concept software was designed to verify that the bridge operated as expected. The software proves that the bridge works but requires improvement before the bridge can be used to translate sophisticated protocols. The bridge works, with minor hardware modifications, as expected. It fulfills all design requirements set in the master thesis and the FPGA firmware uses a well-established protocol, making further development easier. FPGA PCI Express M.2 High-speed PCB Design LVDS CMOS Bridge Protocol Artix-7 VHDL SMBus Embedded Systems Inbäddad systemteknik
5	OpenBSD Hardware Sensors — Environmental Monitoring and Fan Control Murenin, Constantine Aleksandrovich 18 May 2010 (has links) This thesis discusses the motivation, origin, history, design guidelines, API, the device drivers and userland utilities of the hardware sensors framework available in OpenBSD. The framework spans multiple utilities in the base system and the ports tree, is utilised by over 75 drivers, and is considered to be a distinctive and ready-to-use feature that sets OpenBSD apart from many other operating systems, and in its root is inseparable from the OpenBSD experience. The present framework, however, is missing the functionality that would allow the user to interface with the fan-controlling part of the hardware monitors. We therefore discuss the topic of fan control and introduce sysctl-based interfacing with the fan-controlling capabilities of microprocessor system hardware monitors. The discussed prototype implementation reduces the noise and power-consumption characteristics in fans of personal computers, especially of those PCs that are designed from off-the-shelf components. We further argue that our prototype is easier, more intuitive and robust compared to solutions available elsewhere. OpenBSD BSD DragonFly DragonFly BSD FreeBSD NetBSD sensors hw.sensors sysctl fanctl fan control hardware sensors SMBus I2C hardware monitor microprocessor system hardware monitors lm lm_sensors sysmon envsys ACPI BIOS drivers device drivers open source I²C thermal temperature framework monitoring kernel Computer Science
6	OpenBSD Hardware Sensors — Environmental Monitoring and Fan Control Murenin, Constantine Aleksandrovich 18 May 2010 (has links) This thesis discusses the motivation, origin, history, design guidelines, API, the device drivers and userland utilities of the hardware sensors framework available in OpenBSD. The framework spans multiple utilities in the base system and the ports tree, is utilised by over 75 drivers, and is considered to be a distinctive and ready-to-use feature that sets OpenBSD apart from many other operating systems, and in its root is inseparable from the OpenBSD experience. The present framework, however, is missing the functionality that would allow the user to interface with the fan-controlling part of the hardware monitors. We therefore discuss the topic of fan control and introduce sysctl-based interfacing with the fan-controlling capabilities of microprocessor system hardware monitors. The discussed prototype implementation reduces the noise and power-consumption characteristics in fans of personal computers, especially of those PCs that are designed from off-the-shelf components. We further argue that our prototype is easier, more intuitive and robust compared to solutions available elsewhere. OpenBSD BSD DragonFly DragonFly BSD FreeBSD NetBSD sensors hw.sensors sysctl fanctl fan control hardware sensors SMBus I2C hardware monitor microprocessor system hardware monitors lm lm_sensors sysmon envsys ACPI BIOS drivers device drivers open source I²C thermal temperature framework monitoring kernel Computer Science

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