A System Level Boundary Scan Controller Board for VME Applications

Abstract

This work is the result of collaboration between INESC and LIP in the CMS experiment being conducted at CERN. The collaboration addresses the application of boundary scans test at system level namely the development of a VME boundary scan controller (BSC) board prototype and the corresponding software. This prototype uses the MTM bus existing in the VME64x backplane to apply the 1149.1 test vectors to a system composed of nineteen boards, called here units under test (UUTs). A top-down approach is used to describe our work. The paper begins with some insights about the experiment being conducted at CERN; proceed with system level considerations concerning our work and with some details about the BSC board. The results obtained so far and the proposed work is reviewed in the end of this contribution.