Abstract
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.
References
- S.Shilpa, Ch.Umashankar, S V S Prasad, “Design of Watchdog Timer for Real Time Applications”, IJITEE, Volume-8, Issue- 9S2, July 2019.
- Robert Regensburger, “High-Voltage Watchdog Timers Enhance Automotive System Safety”, Automotive Product Definitions, Maxim Integrated Products, Germany Jan 05, 2012.
- “TPS3813-Q1 Processor Supervisory Circuits With Window-Watchdog”, Texas Instruments, October 2019.
- Xinyun Liu, Shihang Chen, Wenqiang Song, “A Design and Implementation of Watchdog Based on Observer Pattern and Finite State Machine”, IEEE International Conference on Reliability, Maintainability and Safety (ICRMS), pp-407 – 411, 20014.
- A.RAJANI, Assistant Professor, JNTUK P.Vijitha, “Connectivity verification of Zynq UltraScale+ MPSoC With TTC and WDT Interrupts”, International Conference on Electronics, Communication and Aerospace Technology, ICECA 2017.
- A.M. El-Attar and G. Fahmy, “An improved watchdog timer to enhance imaging system reliability in the presence of soft errors,” in Signal Processing and Information Technology, 2007 IEEE International Symposium on. IEEE, Dec. 2007, pp. 1100–1104.
- M. Pohronska and T. Kraj covic, “FPGA implementation of multiple hardware watchdog timers for enhancing real-time systems security,” in EUROCON-International Conference on Computer as a Tool (EUROCON),2011 IEEE. IEEE, Apr. 2011, pp. 1–4.
- Xinyun Liu, Wenqiang Song, Shihang Chen, “A Design and Implementation of Watchdog Based on Observer Pattern and Finite State Machine”, International Conference on Reliability, Maintainability and Safety (ICRMS), 2014.
- Xi Chen, Juejing Feng et.all, “Application of Software Watchdog as a Dependability Software Service for Automotive Safety Relevant Systems”, 37th Annual IEEE/IFIP International Conference on Dependable Systems and Networks, 2007.
- Kochan, R.Kopylchak, Korkishko, “Improved watchdog timer for control the IBM PC based autonomous computer systems”, in Modern Problems of Radio Engineering, Telecommunications and Computer Science, 2002.', pp. 181-182.
- Giaconia.G, Di.Stefano et.al “FPGA-based concurrent watchdog for real-time control systems”, 2003, Electronics Letters 39(10), pp. 769-770.
- Pohronska.M and Krajcovic, “Embedded Systems with Increased Reliability Using the Multiple Watchdog Timers Approach,” 2010 International Conference of Applied Electronics Proceedings, J. Pinker, ed., University of West Bohemia in Pilsen, 2010, pp. 273-276
- Microchip Technology Internal Documents.
