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The ROBSY approach is able to autonomously generate highly flexible FPGA-based test instruments for structural testing of printed circuit boards (PCBs). This paper deals with the development of an essential part of ROBSY: the test-processor. It is specialized for board-level testing and includes configuration parameters for the adaptation to the specific test case. The level of adaptation is essential...
This paper describes a new method to model timing constraints for the generation of basic control functions for embedded test instruments in the area of structural testing of printed circuit boards. It describes how the timing information is extracted from data sheets, modeled in a domain specific language and processed to obtain the shortest possible test time for the automatically generated embedded...
The Ilmenau Interactive Hybrid Online Lab offers several fields of application. In this article an enhancement of the existing Online Lab will be described to provide additional functionalities for a Web-based rapid prototyping of digital systems as well as the Web-based verification of such systems. For this new operation mode of the online lab a special rapid-prototyping board for digital systems...
This paper presents a study of FPGA test-processor configurability at the instruction set architecture (ISA) level used for board-level interconnection testing. The ISA configurability is used as adaptation mechanism to the test requirements, the FPGA properties, and the devices under test (DUTs). The aim is to show the advantages and limitations of processor configurability at this level, and demonstrate...
Based on a grid concept of an interactive hybrid online laboratory we will describe different fields of applications in different learning scenarios. The infrastructure is based on a universal grid concept which guaranties a reliable, flexible as well as robust usage of this online lab. By using the REAL online lab, students are able to design control algorithms with different specification techniques...
Within this paper, we will describe a grid concept to realize a universal remote lab infrastructure as well as different operation modes based on this concept. This new infrastructure consists of three parts: an internal serial remote lab bus, a bus protection unit to interface the remote lab bus and to protect it from misuse and damage as well as a protection unit, which protects the physical systems...
This paper describes an FPGA based embedded test system, designed for testing of printed circuit boards during the manufacturing process. The test system architecture is automatically generated based on a layer description, which provides the required flexibility for the generation of the test system, and for the abstraction of the test functions. The test system is composed of a software and a hardware...
The paper describes a new approach of boundary scan emulation based testing for adaptive failure diagnostics using programmable logic. The motivation to speed up boundary scan based testing as well as the approach taken for this new concept and architecture are presented. With this approach the possibilities of boundary scan testing can be extended by using the available on-board resources for a faster...
In this work, we propose a multifunctional remote e-learning environment for teaching research by learning and investigating the problems of fault diagnosis in electronic systems. It is a collection of software tools which allow to simulate a system under diagnosis, emulate a pool of different methods and algorithms of fault location, analyze the efficiency of different embedded self-diagnosing architectures,...
In this work, we propose a multifunctional e-learning environment with remote access for learning, getting hands-on experience, and carrying out laboratory research in developing optimized procedures for locating faults in complex electronic systems. It is a combination of a collection of software tools which simulate a system under diagnosis, emulate a pool of different strategies, methods, and algorithms...
The content, provided in Learning Management Systems (LMS), is often text oriented as in a usual textbook. We have added interactive components, such as smart design tools and online laboratories, in an LMS that allow exploring the learned content additionally to text parts interactively. The objective of our teaching concept is to empower the students to solve complex design tasks for digital systems...
The efficiency of test generation (quality, speed) for digital systems like microprocessors is highly depending on the methods for diagnostic modeling of systems. For systems with high logic complexity higher level methods are unavoidable.A method is discussed for modeling microprocessors with high level Decision Diagrams (DD). DDs can be used for developing a general theory for diagnosis of systems...
A lot of learning management systems (LMS) were developed in the last ten years since e-learning opens new possibilities in learning scenarios. They offer the possibility to watch any of the students action on the computer, but possibilities to verify the level of knowledge, a student has reached (accordingly to Bloompsilas taxonomy), are very poor. Multiple choice questions and the like can only...
This paper describes a new software tool for high quality training/learning in the field of digital microelectronics. Its main purpose is to give insight into reliability and quality assurance technologies based on linear feedback shift registers (LFSR) and other pseudo-random pattern generators (PRPG). Various PRPG types are becoming the mainstream test generation solution used in built-in self-test...
Linear feedback shift registers (LFSR) and other pseudo-random pattern generators (PRPG) have become one of the central elements used in testing and self testing of contemporary complex electronic systems like processors, controllers, and high-performance integrated circuits. The current paper describes a training and research tool for learning basic and advanced issues related to PRPG-based test...
The production of high quality, media supported learning objects is a very cost and time-consuming process. Companies are searching for strategies and policies to reuse such valuable content in different scenarios and to get so-called reusable learning objects (RLOs). In the paper, we will give a new classification of learning objects, delivered from the system-on-a-chip design process, and specify...
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