Real-Time BIST for Fault Detection in FPGA

Real-time fault detections are needed in systems which require high reliability. Some methods like online BIST can detect fault on runtime, but it cannot real-time detect the fault. In this article, three online self-checking methods for built-in fault detection will be presented. These detection methods not only can real-time detect the fault, but can also locate the fault where logic blocks have undergone an SEU by comparing their configuration data. The testing result shows that the method proposed in this article have better performance than that of online BIST Keywords-fault detection; real-time; BIST; self-checking; FPGA