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. True-random number generators (TRNGs) are being recently defined, designed and prototyped on digital electronic circuits, like part of encryption and decryption algorithms. They provide very interesting results in terms of security and cost. In harsh environments, like aerospace applications, Single Event Upsets (SEUs) are a main concern. TRNGs are currently used in satellite communications to enhance...
Digital electronic systems in automotive applications are in charge of different tasks, ranging from very critical control functions (e.g., airbag, ABS, ESP) to comfort services (e.g., handling of mirrors, seats, windows, wipers). Hardening these systems involves suitably trading off cost and reliability. Due to standards and regulations in the area, the reliability of subsystems involved even in...
Partial Reconfiguration is one of the most attractive features of FPGAs. This feature provides new computing possibilities, for instance we can change a part of the initial functionality after its deployment, where a complete configuration is not needed, and the total area required is reduced. However, the design of partially reconfigurable systems has been a complex task yet. This work try to facilitate...
In this work, a method is proposed for obtaining comparable measurements of the SEU sensitivity in reprogrammable devices that present different characteristics like internal architecture, technology, amount of available resources, etc. A specific minority checker is developed for reporting the presence of SEUs or MBUs which will help in this comparing task during dynamic tests.
Lately, the use of GPUs is dominant in the field of high performance computing systems for computer graphics. However, since there is "not good for everything" solution, GPUs have also some drawbacks that make them not the best choice in certain scenarios: poor performance per watt ratio, difficulty to rewrite code to explode the parallelism and synchronization issues between computing cores,...
Current trend on FPGAs is to increase the number of inputs of the LUT up to six inputs to improve resource utilization. In this work we have analyzed the impact of the inputs expansion in two different architectures, memory-based and multiplexer-based, considering area, performance and power. A new memory-based architecture is presented based on the use of a 7-transistor cell and dedicated reading...
Turbo Codes are used in satellites and deep-space exploration as an innovative solution for error control codes. Radiation effects could add noise levels above the correction capability of the wireless communication modules, even though turbo codes were assuring low Bit Error Rates. SEU effects in the BER of a Turbo Decoder intended for space applications has been analyzed in detail, injecting millions...
The extended use of LEDs is emerging in many areas traditionally restricted to different solutions. Not only simple lighting electronic controlled systems are demanded by industry and consumers, but light jockey user controlled solutions have become more important in theatrical and entertainment data distribution systems. This paper presents a complete FPGA-based hardware and software solution for...
In this paper a tool aimed at generating fast Fourier transform (FFT) cores targeting FPGA platforms was presented. The tool is able to generate different pipelined architectures of the FFT that provide different points of the design space: from high performance to low area implementations. The user can select the most suitable architecture based on a broad set of configuration parameters, as they...
In this paper two different experiments of fast prototyping of control circuit for power electronics converters based on FPGA are described. In both cases digital circuits are used for generating switching pulses with relatively complex patterns, difficult to generate with analogue circuits. Specific hardware provides in these two cases great flexibility
FPGA emulation has proven to be a performance effective method to analyse the behaviour of digital circuits in the presence of soft errors due to SEU effects. In particular, the recently developed autonomous emulation techniques allow the classification of thousands and even millions of faults per second. In this paper, an approach to extend the autonomous emulation techniques to circuits with embedded...
Systems-on-programmable-chip (SoPCs) include processors, memories and programmable logic that allow to catch multiple application requirements such as high performance, reconfigurability and low-costs. Due to these characteristics, they are also becoming very attractive for safety-critical applications. However, the issue of assessing the reliability they can provide and debugging the possible safety-related...
Fault injection is commonly used for evaluation of fault tolerance of safety-critical systems. Among the possible fault injection techniques, FPGA-based emulation is very attractive because of its superior performance. In particular, autonomous emulation technique can provide emulation speeds in the order of millions of faults per second. In this paper FPGA-based emulation is extended to circuits...
Correlation based methods are gaining attention in the biometric field due to the extremely good results achieved for pattern matching recognition in authentication and verification processes. In particular, a high matching accuracy can be obtained with these methods in the fingerprint field. However, they cannot be used in many applications because of the large computational effort required. On the...
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