<p>The increasing complexity and decreasing technology feature sizes of electronic designs has caused the challenge of testing to grow over the last decades. The purpose of this thesis was to evaluate different hardware test methods/approaches based on their applicability in a complex SoC design. Among the aspects that were investigated are test implementation effort, test efficiency and the performance penalties implicated by the test.</p><p>This report starts out by presenting a general introduction to the basics of hardware testing. It then moves on to review available standards and methodologies. In the end one of the more interesting methods is investigated through a case study. The method that was chosen for the case study has been implemented on a DSP, and is rather new and not as prolific as many of the standards discussed in the report. This type of method appears to show promising results when compared to more traditional ones.</p>

<p>This thesis evaluates the possibility to replace the manufacturer dependent JTAG device used in the production tests of IPTV set-top boxes for storing the boot loader in the main memory in order to start the box for the first time. An FPGA based prototype was built in order to see if it is possible to record the JTAG signals, to an external DDR SDRAM, without understanding them and be able to perform a delayed playback resulting in the same bahavoir as with the original JTAG device.Overall the thesis was succesful and it shows that it is infact feasible to create a JTAG recorder based on an FPGA. A lot of data is used for storing the sequence though so the use of a fast memory is cruicial. However in this thesis the speed of both the recording and the delayed playback was reduced in order to work properly.</p>

The increasing complexity and decreasing technology feature sizes of electronic designs has caused the challenge of testing to grow over the last decades. The purpose of this thesis was to evaluate different hardware test methods/approaches based on their applicability in a complex SoC design. Among the aspects that were investigated are test implementation effort, test efficiency and the performance penalties implicated by the test. This report starts out by presenting a general introduction to the basics of hardware testing. It then moves on to review available standards and methodologies. In the end one of the more interesting methods is investigated through a case study. The method that was chosen for the case study has been implemented on a DSP, and is rather new and not as prolific as many of the standards discussed in the report. This type of method appears to show promising results when compared to more traditional ones.

The BeagleBoard-xM, manufactured by Texas Instruments, is a small, low cost, open source development platform for the ARM® Cortex-A8 processor. This paper implements a hardware and software combination to connect to the ARM® processor via a JTAG connection for debugging. A FlySwatter interface board is utilized to connect the JTAG port to a host computer and a combination of software tools are implemented to demonstrate the capability for debugging the Linux kernel. The necessary files for booting the Linux 3.0 kernel were compiled and loaded on the BeagleBoard-xM and the host computer. Installation and selection of the components that make up the software tool chain are described. All the hardware and software used for this project are open source designs. / text

This thesis evaluates the possibility to replace the manufacturer dependent JTAG device used in the production tests of IPTV set-top boxes for storing the boot loader in the main memory in order to start the box for the first time. An FPGA based prototype was built in order to see if it is possible to record the JTAG signals, to an external DDR SDRAM, without understanding them and be able to perform a delayed playback resulting in the same bahavoir as with the original JTAG device.Overall the thesis was succesful and it shows that it is infact feasible to create a JTAG recorder based on an FPGA. A lot of data is used for storing the sequence though so the use of a fast memory is cruicial. However in this thesis the speed of both the recording and the delayed playback was reduced in order to work properly.

The primary objective of this master’s thesis is to discuss a design and development of proximity touch control panel, which contains two simulated buttons and one rotary slider simulating functions of the potentiometer using specialized sensor controllers. The first part is describing functions and different technologies used to create touch sensors. It also introduces its usage in practice, advantages and disadvantages of different technologies which provides the readers with basic theoretical knowledge and introduction into the touch sensors. The second part as follows describes the definition of Integrated Circuits MPR083 and MPR084, outline of the features and methods of their functions. Displays internal connection of these circuits and describes forms of the serial communication with microcontroller connected to I2C bus. In these part there are in details described individual internal registers of these Integrated Circuits and theirs typical setups. It shows how it is possible to use the external interrupts and examples of their practical application. In the last chapter of these thesis is described the layout of the individual modules and construction of the whole designed device. The work is introducing two different concepts of programming the microcontrollers and consequently also construction of the appropriate ISP and JTAG programmers. It also introduces construction of the display units for visual feedback with the user and approach of the communication for the control LED matrix and graphical LCD display. The main part of this thesis is the construction of the control circuit, which includes key part, microcontroller ATmega16. It also presents the description of the program written in development environment AVR Studio in programming language C and his specific functions. In conclusion of the thesis are listed real measured behavior of the communication on I2C bus and their description.

The aim of master thesis was to investigate a simple camera and processor Atmel AVR unit implementation. Thesis describes how to get image from C3088 module and management over the bank of camera registers. Work includes limitation draft for this way of processing the information. Thesis also solves an exemplary model for object recognition using this implementation.

The aim of this thesis is to design and implement an industrial programmer AVR microcontrollers from Atmel. The first section provides the theoretical knowledge of the AVR microcontroller. Furthermore, comparison of methods for programming the microcontroller and the selected method is an analysis of the speed of programming. The following is the entire design of industrial programmer which is implemented in the programming environment Eagle. In the penultimate part of the proposal is designed PCB. The final section is devoted to the revival of the programmer and programming.

Företag kan ha produktionsanläggningar på ett antal olika platser runt om i världen. Den industriella utrustningen som används i anläggningarna innehåller ofta någon form av inbyggt system som kräver underhåll eller övervakning vid jämna mellanrum. Utrustningen kan vara tekniskt avancerad och därför måste underhållet skötas av en servicetekniker. Mindre leverantörer av industriella utrustningar har inte alltid möjlighet att ha serviceorganisationer i varje land då detta innebär en extra kostnad. Det hade därför varit fördelaktigt med ett kompletterande kommunikationssystem som fungerar som en mellanhand mellan servicetekniker och målsystem som kan befinna sig på skilda platser.Kommunikationssystemet som tagits fram i detta projekt fungerar som en typ av fjärrövervakning där det är möjligt att utföra fjärravläsning samt ändra inställningar på distans. Syftet med examensarbetet är därför att utveckla en enkel och kostnadseffektiv enhet avsedd för fjärrövervakning av utrustningar innehållande inbyggda system.Examensarbetet resulterade i en kostnadseffektiv prototyp av en övervakningsenhet, baserad på enkortsdatorn Raspberry Pi, som kan kopplas in till ett målsystem när service behövs. I projektet testades kommunikationssystemet mot ett målsystem baserat på enkortsdatorn Arduino Uno. Övervakningsenheten har möjlighet att kommunicera med målsystemet via tre olika sätt: RS-232, JTAG samt kommunikation via GPIO-pinnar. Dessa kommunikationssätt kan användas till olika ändamål då kommunikationssätten är användbara för olika tillämpningar och kan därmed möjliggöra implementering av många olika funktioner. Kommunikationssätten är dessutom välanvända och passar till många olika målsystem. Servicetekniker har två tillgängliga användargränssnitt för att interagera med övervakningsenheten. Det primära användargränssnittet är ett webbgränssnitt där utdata från målsystemet kan övervakas samt att det finns möjlighet att ställa in olika inställningar. Det andra användargränssnittet består av fjärrstyrning av övervakningsenheten där funktioner finns för att utföra felsökning (eng. debugging) samt möjlighet att ladda in ett nytt program på målsystemet. / Companies can have production plants in a variety of locations around the world. The industrial equipment used in facilities often includes some form of built-in systems which require maintenance or monitoring at regular intervals. The equipment can be technologically advanced and therefore maintenance must be performed by a service technician. Smaller suppliers of industrial equipment are not always able to have service departments in each country, which often means an additional cost. It would therefore be advantageous with an additional communication system that acts as an intermediary between the service technician and the target system that can be located in different places.The communication system developed in this project acts as a kind of remote monitoring where it is possible to perform remote reading, and change different settings remotely. The purpose of this study is therefore to develop a simple and cost effective device designed for remote monitoring of equipment containing embedded systems.The study resulted in a cost-effective prototype, based on the single board computer Raspberry Pi, of a monitoring device that can be connected to a target system when service is needed. The communication system was tested throughout the project on a target system based on the single board computer Arduino Uno. The monitoring unit is able to communicate with the target system via three different ways: RS-232, JTAG and communication via GPIO-pins. These communication methods can be used for different purposes as these communication methods are useful for various applications and can thus enable implementation of many different functions. The communication methods are also widely used and suitable for many different target systems. Service technicians have two available user interfaces for interacting with the monitoring unit. The primary user interface is a web interface where the output of the target system can be monitored and that there is the possibility to set different settings. The second interface is remote controlling of the monitoring device which has functions to perform debugging and the ability to flash a new program into the target system.

Rapporten beskriver ett examensarbete som har genomförts hos Scania R&amp;D. Målet har varit att testa om det är möjligt att använda JTAG för kontroll av Ball Grid Array på komponenter som sitter på kretskort. Vanliga mätmetoder kan inte användas med mindre än att man separerar komponenten från kretskortet. Det som framkommer är att JTAG kan användas för att kontrollera Ball Grid Array samtidigt som kretskortet finns i ett så kallat temperaturchockskåp (som används för att testa hur utrustning och komponenter reagerar vid snabba temperaturändringar). Svårigheten består att den flatkabel som för över signaler mellan dator och kretskort är så lång att arrangemanget blir störningskänsligt. Detta kan lösas med en Extender som förstärker signalen så att kabeln kan vara längre än 0,5 meter. Resultat visar att JTAG kan användas med kretskort som befinner sig i temperaturchockskåpet. Målet har även varit att utveckla en kontrollmetod för att kontrollera att det kretskort som levereras till Scania uppfyller kraven i ISO 26262. För att kunna kontrollera om en leverantör uppfyller ISO 26262 behövs dokumentation som verifierar att produkten utvecklats i enlighet med ISO 26262. I ISO standarden finns det tolv delar som beskriver kraven på produkten. I rapporten har fokus lagts på delen som handlar om hårdvara. Ingen kontrollmetod har kunnat utvecklats då ISO standarden var mer omfattade än väntat.