This text is a treatise on microcontroller programming. It introduces the major peripherals found on most microcontrollers, including the usage of them, focusing on the ATmega644p in the AVR family produced by Atmel. General information and background knowledge on several topics is also presented. These topics include information regarding the hardware of a microcontroller and assembly code as well as instructions regarding good program structure and coding practices. Examples with code and discussion are presented throughout. This is intended for hobbyists and students desiring knowledge on programming microcontrollers, and is written at a level that students entering the junior level core robotics classes would find useful.

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.

The concept proposal of the RFID security terminal is described in this Master Thesis. The RFID identification and its usage are analyzed at first. The description of the selected fitting circuits, communication bus as well as its parameters follows. The practical realization, proposed module design and designed printed circuit board is described afterwards. Several problems found during activation phase are analyzed in the chapter describing the practical module realization. The problem resolution is mentioned as well. The practical prove of the real module parameters and differences compared to the designed values are described at the end of this Master Thesis.

Today, more and more embedded hardware devices are reaching the market and consumers with a demand for smaller and better devices than yesterday. Increasing the performance of a device decreases the operating time since more power is consumed, still, decreasing the size of the device also decreases operating time as the battery size decreases.To allow the performance to increase and the size of the device to decrease, the designer must nd techniques allowing the hardware to consume less power during normal usage of a device than during the peak usage.In this thesis an implementation of an ARM based microprocessor system is presented and used for measuring and evaluation of the power consumption possibilities of the system.

This report describes the development of a sample loader for my diploma work at Q-linea AB in Uppsala. The sample loader will replace the process of loading fluid samples into Q-linea’s instrument for biomolecule analysis. The earlier process was done by hand and was a time consuming and inefficient task. The work was initiated with a design phase where an overview of the system was created. The sample loader will be receiving text commands from a PC that coordinates all the subsystems like pumps and lasers on the analysis instrument. The commands will be translated by a microcontroller into the correct movement of the samples needed to load them. Most of the work was put down into developing the software responsible for handling communications and actuation of a couple of stepper motors. Lastly a circuit board was designed and manufactured, ready to be mounted into the existing instrument. The result was a working prototype which now is used in the daily work at Q-linea. It is subject for further development and in the future it will be shipped as a part of the finished biomolecular analysis instrument from Q-linea.

<p>I detta projekt undersöker vi om man kan bygga en maskinaktivitetssensor med</p><p>hjälp av en enkretsdator som genom en accelerometer mäter en maskins</p><p>vibrationer. Sensorn skall generera en statussignal. Accelerometern ger en</p><p>mätbar signal baserad på maskinens vibrationer. Enkretsdatorn används för att</p><p>sampla, transformera och analysera signalen och generera statusinformation.</p><p>Med LabView kan vi spara, studera och analysera olika signaler och olika</p><p>transformer. Vi studerar maskinvibrationer i LabView och beslutar att 5 kHz</p><p>sampling räcker för att fånga intressanta vibrationer. Vi jämför transformers</p><p>egenskaper och beräkningskrav och väljer Fouriertransform som analysmetod.</p><p>Vi beräknar att en Atmel ARM SAM7S256 kan utföra uppgiften och</p><p>implementerar interruptbaserad signalsampling, frekvensanalys och en</p><p>beslutsrutin som resulterar i en utsignal med statusinformation.</p> / <p>In this project we examine the possibility to create a machine activity sensor by</p><p>a one-chip computer that measures a machines vibrations through an</p><p>accelerometer. The sensor shall generate a status signal. The accelerometer is</p><p>used to give a measurable signal of a machines vibrations. The one-chip</p><p>computer is used to sampel, transform and analyze this signal and generate a</p><p>status signal. With LabView we can save, study and analyze different signals</p><p>and their different transforms. By studying machine vibrations in LabView we</p><p>decide that sampling at 5 kHz is sufficient. By comparing different</p><p>transformations in regards to performance and calculation needs we choose</p><p>Fast Fourier Transform as analyzing tool. We calculate that a ARM</p><p>SAM7S256 can manage the task and implement an interrupt based sampling,</p><p>frequency analysis and decision making routine which results in a status signal.</p>

I detta projekt undersöker vi om man kan bygga en maskinaktivitetssensor med hjälp av en enkretsdator som genom en accelerometer mäter en maskins vibrationer. Sensorn skall generera en statussignal. Accelerometern ger en mätbar signal baserad på maskinens vibrationer. Enkretsdatorn används för att sampla, transformera och analysera signalen och generera statusinformation. Med LabView kan vi spara, studera och analysera olika signaler och olika transformer. Vi studerar maskinvibrationer i LabView och beslutar att 5 kHz sampling räcker för att fånga intressanta vibrationer. Vi jämför transformers egenskaper och beräkningskrav och väljer Fouriertransform som analysmetod. Vi beräknar att en Atmel ARM SAM7S256 kan utföra uppgiften och implementerar interruptbaserad signalsampling, frekvensanalys och en beslutsrutin som resulterar i en utsignal med statusinformation. / In this project we examine the possibility to create a machine activity sensor by a one-chip computer that measures a machines vibrations through an accelerometer. The sensor shall generate a status signal. The accelerometer is used to give a measurable signal of a machines vibrations. The one-chip computer is used to sampel, transform and analyze this signal and generate a status signal. With LabView we can save, study and analyze different signals and their different transforms. By studying machine vibrations in LabView we decide that sampling at 5 kHz is sufficient. By comparing different transformations in regards to performance and calculation needs we choose Fast Fourier Transform as analyzing tool. We calculate that a ARM SAM7S256 can manage the task and implement an interrupt based sampling, frequency analysis and decision making routine which results in a status signal.

This study describes the platform Atmel FPSLIC, which is created by means of the logic arrays FPGA and the micro-sequencer controller AVR. The developmental kit STK594 is described here as well, with its programming possibilities, as for the logic arrays FPGA, as for the micro-sequencers AVR. Also the separate circuit AT94K is described there. This circuit can be programmed by the language VHDL (the field FPGA), or by means of the assembler and language C for the micro-sequencer. All this can be integrated into the one output file by means of program System Designer, comprising a set of software tools for given programming languages and for generation of the whole circuit. Furthermore, the study describes a simple application for the both platform parts. Also the description of the dynamic reconfiguration of the circuit gate part is included.

The diploma thesis provides a brief overview of the architecture Atmel AVR32 UC. Project deals mainly AVR32 processor UC3A and processor AVR32 UC microarchitecture. From The Microarchitecture AVR32 UC3A was derived processor AT32UC3A0512. This processor is used for the development board EVK1100. Options of this plate are also investigated. Basic information about programming and AVR32 Studio development environment for these processors are given. After the acquisition of control of the IDE and study the attached sample application a simple program was created. This program was integrated as a task operating system FreeRTOS along with several another tasks.

The purpose of this thesis is to design FSK modem for Packet communication. In accordance with accessible literature was constructed functioning circuit schema and subsequently there was constructed a motherboard which is mainly assembled from SMD technology. It makes this modem mobile and very easy usable in terrain. Modem communicates with PC via USB bus. Also this bus is used as power source for this device. Communication between modem and PC is realized by KISS protocol and connection with tranciever is realized by AX.25 protocol.