The implementing complicated digital bus device test using general purpose digital instrument

For the complicated digital bus device testing, there are two approaches: dedicated bus instrument and general-purpose digital IO instrument. The dedicated bus testers provide more advanced capability including exercising the bus, injecting errors, fully characterizing specification compliance for design validating and verification phase. This paper presents a modular solution based on the general-purpose digital IO instrument. By using built-in architectural elements such as the deep onboard memory, hardware handshaking, and an algorithmic engine, test engineers can increase the performance, modularity and simplification of test system.