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Reverse problem-based learning - a case study with a Braille machine
Felgueiras, Manuel C.; Fidalgo, André V.; Alves, Gustavo R.Engineering Education includes not only teaching theoretical fundamental concepts but also its verification during practical lessons in laboratories. The usual strategies to carry out this action are frequently based on Problem Based Learning, starting from a given state and proceeding forward to a target state. The possibility or the effectiveness of this procedure depends on previous states and if the present...
An embedded 1149.4 extension to support mixed-signal debugging
Felgueiras, Manuel C.; Alves, Gustavo R.; Ferreira, José M.Debugging electronic circuits is traditionally done with bench equipment directly connected to the circuit under debug. In the digital domain, the difficulties associated with the direct physical access to circuit nodes led to the inclusion of resources providing support to that activity, first at the printed circuit level, and then at the integrated circuit level. The experience acquired with those solutions l...
Using test infrastructures for (remote) online evaluation of the sensitivity to...
Fidalgo, André V.; Alves, Gustavo R.; Felgueiras, Manuel C.; Gericota, Manuel G.This paper proposes an online mechanism that can evaluate the sensitivity of single event upsets (SEUs) of field programmable gate arrays (FPGAs). The online detection mechanism cyclically reads and compares the values form the external and internal configuration memories, taking into account the mask information. This remote detection method also signals any mismatch as a result of a SEU that affects both used...
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