Tracking Automotive Electronics Related Sensory and Their Traceability by Boundary Scan Technology

This is the authors' abstract. We don't add key points for this paper.

This paper proposes several Python-based test methods to study a series of MCU-associated sensors. In light of today's automotive electronics, many electric systems are involved in modularized bare dies such as power management ICs along with embedded programming. As to the application of autonomous driving like the ADAS system, having many Multiple-Chips Modules (MCM) which are popular in SoC related functional boards. It is necessary to have these electrical systems follow stringent safety standards and regulations by the International Electrotechnical Commission (IEC). That is to ensure the electronic systems to be designed, implemented, operated within safety range. That is traceable according to the prerequisite Safety Integrity Level (SIL) besides the Automotive Safety Integrity Level (ASIL) towards five classes. These classes further evolved into higher requirements such as IEC-61508 and more recently the ISO-26262. All of these, have driven many companies to research and develop a suite of methods and strategies to solve some of the “reliability” associated issues, especially in the area of autonomous driving. This paper proposes the boundary scan based test methodology to cop with government’s regulations by tracking some of the major sensors in responses to motion, temperature and dynamic forces based on a JTAG’s sensor board in case study A. Thereafter, using an NXP’s automotive board to trace on board electronics, mainly the CPU and MCU via the MODBUS is made possible to log and record test results through VB.XML.NET. These languages speak uniformly to the relational data base in one “DataSet” by in-memory cache of the data retrieved from a database, in case study B. Both are realized by the JTAG’s Functional Test (JFT) system, to log the “pass or fail” results in a sequential execution. This paper illustrates how-to reach this goal through the process in use of the public-domain based open frame-ware, and to demonstrate them on a JTAG’s Provision platform throughout the development stages.