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- Robust Configurable System Design with Built- In Self-HealingPublication . Gericota, Manuel G.; Alves, Gustavo R.; Ferreira, Jose M.The new generations of SRAM-based FPGA (Field Programmable Gate Array) devices, built on nanometre technology, are the preferred choice for the implementation of reconfigurable computing platforms. However, their vulnerability to hard and soft errors is a major weakness to robust system design based on FPGAs. In this paper, a novel Built-In Self-Healing (BISH) methodology, based on modular redundancy and on self- reconfiguration, is proposed. A soft microprocessor core implemented in the FPGA is responsible for the management and execution of all the BISH procedures. Fault detection and diagnosis is followed by repairing actions, taking advantage of the self-configuration features. Meanwhile, modular redundancy assures that the system still works correctly. This approach leads to a robust system design able to assure high reliability, availability and data integrity.
- Sistema Modular para o Teste de Cartas de Circuito Impresso com BSTPublication . Alves, Gustavo R.; Gericota, Manuel; Ramalho, Jose L.; Ferreira, Jose M.Esta comunicação apresenta a arquitectura física de um sistema modular para o teste e validação de Cartas de Circuito Impresso (CCI) que disponham de uma infraestrutura compatível com a norma IEEE 1149.1, vulgarmente designada por Boundary Scan Test (BST). A arquitectura global do sistema compreende ainda um nível lógico constituído por um pacote de apoio informático para a geração automática de programas de teste.