High-level synthesis of data paths with concurrent error detection

Abstract

High-level synthesis of data paths with concurrent self-checking abilities is discussed to balance redundancy, latency, and checking effectiveness. The nominal and the checking computations are scheduled and allocated contemporaneously by using a force-directed approach to limit the number of redundant units required to achieve detection within the latency of the nominal computation only. Resource sharing between the nominal and the checking computation is used to minimise the redundancy, while keeping error aliasing as reduced as possible.