Title :
Transparent structural online test for reconfigurable systems
Author :
Abdelfattah, Mohamed S. ; Bauer, Lars ; Braun, Claus ; Imhof, Michael E. ; Kochte, Michael A. ; Zhang, Hongyan ; Henkel, Jörg ; Wunderlich, Hans-Joachim
Author_Institution :
Inst. of Comput. Archit. & Comput. Eng., Univ. of Stuttgart, Stuttgart, Germany
Abstract :
FPGA-based reconfigurable systems allow the online adaptation to dynamically changing runtime requirements. However, the reliability of modern FPGAs is threatened by latent defects and aging effects. Hence, it is mandatory to ensure the reliable operation of the FPGA´s reconfigurable fabric. This can be achieved by periodic or on-demand online testing. In this paper, a system-integrated, transparent structural online test method for runtime reconfigurable systems is proposed. The required tests are scheduled like functional workloads, and thorough optimizations of the test overhead reduce the performance impact. The proposed scheme has been implemented on a reconfigurable system. The results demonstrate that thorough testing of the reconfigurable fabric can be achieved at negligible performance impact on the application.
Keywords :
ageing; field programmable gate arrays; integrated circuit testing; reconfigurable architectures; FPGA reconfigurable fabric; FPGA reliability; FPGA-based reconfigurable systems; functional workloads; latent defects; performance impact; runtime reconfigurable systems; system-integrated transparent structural online test method; Containers; Fabrics; Field programmable gate arrays; Random access memory; Runtime; Table lookup; Testing; FPGA; Online Test; Reconfigurable Architectures;
Conference_Titel :
On-Line Testing Symposium (IOLTS), 2012 IEEE 18th International
Conference_Location :
Sitges
Print_ISBN :
978-1-4673-2082-5
DOI :
10.1109/IOLTS.2012.6313838
