Στην παρούσα διπλωματική εργασία ακολουθήθηκαν τα περισσότερα βήματα που απαιτεί η τεχνική διαδικασία για την δημιουργία ενός προϊόντος που έχει ως στόχο την εκμάθηση προγραμματισμού πάνω σε ARM πυρήνα. Το κομμάτι της εργασίας μου αφορούσε την δημιουργία της πλακέτας καθώς και την συγκόλληση των στοιχείων πάνω σε αυτή, δημιουργία τρόπου διεπαφής με τον υπολογιστή για τo φόρτωμα του κώδικα λειτουργίας του, την εύρεση πλατφόρμας προγραμματισμού, αλλά και την δημιουργία εκπαιδευτικών ασκήσεων πάνω στο συγκεκριμένο επεξεργαστή. Σκοπός των ασκήσεων είναι η εισαγωγή του αναγνώστη στην λογική και τον προγραμματισμού του ARM Cortex-M3. / Most of the steps required during the technical procedure of producing an Arm core based evaluation board were followed in the current diploma thesis. My personal assignment included the design of the printed circuit board, soldering of the components on the board, establishing a way of communication between a personal computer and the board for downloading the source code, finding a programming platform and the creation of exercises for the specific processor used on the board. The purpose of the exercises is the introduction of the reader in the programming logic of ARM Cortex-M3.

The work deals with the design of a USB floppy drive driver. It describes the theory needed to design your own floppy drive driver and the output of individual components. The following is a schematic of the floppy drive driver design. The functions for controlling the floppy drive are described, as well as the pitfalls of the ATSAMD21J18A-AU processor used.

In this work I have evaluated a method to model, measure and analyze the power consumption of embedded systems. The method combines current measurement with debug trace data telling which parts of the systems that are enabled. This makes it possible to compute the individual current consumption of the parts in the system from a single measurement point. The method allows an embedded systems engineer to determine the power consumption of individual parts in a system to either get an overview or to compare several revisions of hardware and/or software with each other. The method also captures the system dynamics of the power delivery route. This makes the model consumption behave more like the actual system around state transitions. The case study is focused on the Arm-based microcontroller CC2650 from Texas Instruments and uses the I-scope/I-jet probe from IAR Systems to measure current consumption and collect trace data.

Asymmetric multiprocessing (AMP) is a way of distributing computer system load toheterogeneous hardware and software environment. This thesis describes the principles of the AMP focusing on the ARM Cortex--A9 processor and Altera Cyclone V hardware platform. Development of a OpenAMP framework based AMP system showing communication among the processor cores, documentation and future work suggestion are the products of this thesis.

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This thesis deals with an electronic circuit and a PCB of a modular RGB LED display with the Ehernet interface. Firstly, author describes a RGB colour model, features of RGB LED displays, ways of control them. The next chapter contains a short description of the Ethernet interface, UDP and TCP protocols and a lwIP TCP/IP stack. The last theoretical chapter is an introduction to ARM Cortex-M3 and Cortex-M4 based microcontrollers. The next chaper is deals with a hardware design of the modular RGB LED display. The device is designed to be modular. Individual devices can be combosed together and create a larger display. Data from the Ethernet interface will be displayed on the RGB LED matrix, resolution of the matrix is 32 × 32 (1024 diodes). A refresh frequency is 100 Hz, a color depth is High color (16 bits) and a scanning 1/16 (two rows is driven at the same time). The next chapter describes the firmware for the RGB LED display, all its logical parts including a web page. Author also created the PC application, which sends pictures using UDP protocol to individual modules.

Abstract This bachelor thesis discusses existing performance analysis techniques for ARM based architecture processors. This includes a comparison between couple of performance analysis applications installed on two Android test devices. Each application monitored CPU performance of the device in three test scenarios. Each test was done in five iterations. The results were compared for each test and for each application. The results of these iterations were compared to find the most stable application among the rest.

The diploma thesis deals with creating the Ethernet converter protocol UDP of the CAN bus with the used application layer CANopen. The converter is executed by means of the microcontroller ARM Cortex-M3, namely by STM32F107VC by STMicroelectronics. The project is designed for the purpose of serving as the main motor controlling card of the mobile advertising robot FektBot. In the theoretical part you can find a brief analysis of the ARM microcotrollers problematics, particularly the STM32F107VC. Then the thesis introduces the Ethernet technology including the UDP protocol. Finally, the CAN bus and its application layer CANopen is described. The practical part shows first of all the scheme of converter hardware. You can find there the design of printed circuits including all components for proper functioning, i.e. especially the microcontroller STM32F107VC, Ethernet PHY, the CAN bus transceiver and switched stabilized supply. Next chapter describes software creating for the given converter. Firstly there are analyzed possible ways of STM32F107VC programming, and then there is the main conception of resolving the programming part shown. The thesis then deals with the concrete implementation of the UDP Ethernet protocol. For that, the lwIP stack is used, over which the application layer of the FektBot robot works. Then there is analyzed the implementation of the CAN bus and CANopen. At the end of the practical part, the final execution of the converter software and the ways of its testing are described.

This masters's thesis deals with choice and implementation of two free real-time operating systems into powerful 32-bit microcontroller with ARM Cortex-M4F core. First, there is shortly described the ARM architecture in general, its programmer's model, instruction set and Cortex-M4F core in brief. Next is description of the architecture of used microcontroller STM32F407VGT6 from ST Microelectronics, description of its integrated memories and their organization and functions of its integrated A/D and D/A converters. Next part of this thesis deals with searching real-time operating systems with ARM Cortex-M4F core support and then choose two of these systems for the implementation. The chosen operating systems are more closely described in two following chapters. Next chapter analyses possible implementations of the digital PSD controller and more complex system of such controllers using real-time operating system. Following chapter describes implementation of chosen operating systems and designed controllers. Last chapter deals with evaluation of features and qualities of the chosen real-time operating systems for implementation of embedded control system.

Main accomplishment of this master’s thesis is to make a module for verification of the function binary and analog inputs (analog inputs only for current loop between 0-20mA) on data logger MODAS DataPoint. Hardware testing device will be made on development kit STM32F3-Discovery from STMicroelecronics Company. Device generates testing signals for confirmation of the function MODAS DataPoint device. Testing device communicates with MODAS DataPoint device via Ethernet, communication between PC application and hardware of the testing device is realized by USB interface in DFU mode. Solution included PC application, where you can connect to the tester device and tested Modas DP device. Furtheremore, the test starts here and application inform user about during a test, processed measured data and generate output protocols.