Characterizing WDT subsystem of a Wi-Fi controller in an Automobile based on MIPS32 CPU platform across PVT

Currently due to increase in stress in present lifestyle, there is a need for people to choose automated cars for transportation purpose. As a result the controllers incorporated in the automobiles must be critically characterized to ensure safety, security and confront of the users. The whole SoC consists of various Sub-modules among which WDT is one of the crucial and most common block found in all silicones. Yet validation of this module has to be done so as to guard the system from going into an hang-over due to some malfunction in hardware devices in the real-time environment or some software faults. This paper emphasizes the characterization of the watch dog timer in a Wi-Fi controller based on MIPS32 CPU platform across PVT. Hence the watchdog timer module is critically characterized across PVT to stress test the system and the obtained data logs are analyzed to form a comprehensive report.