The effects of proton irradiation on coolrunner-II - CPID technology

García-Valderas, M.; Portela-García, M.; López-Ongil, C.; Entrena, Luis; Martín-Ortega, Alberto; Mingo, J. de; Álvarez, M.; Esteve, Sergio; Rodríguez, Santiago

doi:10.1109/radecs.2008.5944064

Cited by 7 publications

(3 citation statements)

References 4 publications

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“…In 2007, during the feasibility phases of the OPTOS program, a series of irradiation test campaigns were conducted [29] with the aim of characterizing the SEE sensibility of the CoolRunner-II devices to high-energy proton particles. Six CPLDs were tested (DUT 1 to DUT 6), four of them (DUT 1, DUT 7, DUT 2, and DUT 3) were in static mode to study SEU susceptibility, DUT 1 and DUT 7 irradiated while powered on to test SRAM memory, and finally DUT 2 and DUT 3 also powered on and off, respectively, to test flash configuration memory in different conditions.…”

Section: Experimental Irradiation Testmentioning

confidence: 99%

Data Analysis and Results of the Radiation-Tolerant Collaborative Computer On-Board OPTOS CubeSat

Martín-Ortega

Rodríguez

Mingo

et al. 2019

International Journal of Aerospace Engineering

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The current evolution of the space missions demands to increase the computing capacities of the on-board computer while reducing its power consumption. This requirement evolves faster than the ability of the manufacturers to develop better space-qualified processors. To meet the strong requirements, the National Institute of Aerospace Technology has developed a distributed on-board computer based on commercial off-the-shelf (COTS). This computer, named OPTOS, provides enhanced computational capacities with respect to what computers of other small satellites typically provide. To maintain the reliability needed to perform typical critical activities such as real-time maintenance or current surveillance, authors have conceived a set of collaborative hardening techniques, taking advantage of the distributed architecture of the OPTOS On-Board Computer. The 3-year mission data analysis shows the feasibility of the collaborative hardening techniques implemented, despite using SEU sensitive devices. The authors describe the processes and tools used to analyse the data and clearly expose the functional errors found at unit level, while the system remains unfaulty and reliable thanks to the collaborative techniques.

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Section: Experimental Irradiation Testmentioning

confidence: 99%

Data Analysis and Results of the Radiation-Tolerant Collaborative Computer On-Board OPTOS CubeSat

Martín-Ortega

Rodríguez

Mingo

et al. 2019

International Journal of Aerospace Engineering

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“…T be carefully analyzed, especially if the SR technology (which is particularly prone to tra is chosen and the final application will b unfriendly environment. [9].…”

Section: A the Lin Standardmentioning

confidence: 99%

“…This is one of the cheapest and most effective techniques in relation with area overhead and fault tolerance achieved. In the next subsection a comparison of the implementation of this technique with previous work presented in [9] is detailed. The FSM has eight reachable states: by coding them with a One-hot method, 5 extra FFs are required, introducing a negligible overhead in the combinational area (7%).…”

Section: ) Error Detection Mechanisms Addedmentioning

confidence: 99%

Reducing SEU sensitivity in LIN networks: Selective and collaborative hardening techniques

Vaskova

Fabregat

Portela-García

et al. 2014

2014 15th Latin American Test Workshop - LATW

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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 the least critical applications has to be evaluated, and in most cases hardening has to be performed with very low extra cost. In this work, two approaches are proposed for hardening the LIN bus, which implements a serial communication network typically used in low-throughput and low-cost sub-systems in automotive applications. First, critical elements in LIN nodes are identified and some techniques to harden them are proposed following a selective hardening approach. Secondly, collaborative hardening techniques are proposed for reducing global sensitivity in a LIN network built with commercial devices, trying to achieve a high degree of robustness in the network with low cost solutions. We report some experimental results allowing evaluating the hardware cost and the robustness of the proposed techniques.

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