Currently, the electronic and electrical architecture of automobiles is becoming increasingly complex, and the safety requirements for automotive electronics are also rising. To meet the safety requirements of automobiles, functional safety is gaining more attention. When it comes to functional safety, the first thing that comes to mind is the functional safety standard ISO 26262. In particular, ISO 26262-5(2018) Clause 8 introduces two metrics: Single-point fault metric (single-point fault metric) and Latent-fault metric (latent fault metric). Depending on the required ASIL level, the single-point fault metric and latent fault metric must meet the corresponding levels.

For microcontrollers (MCU, referred to as MCU below), within the electronic and electrical system, they are designed and developed as SEooC (safety element out of context). To meet the aforementioned metric requirements, MCUs need to implement corresponding safety mechanisms. These safety mechanisms can be allocated to both hardware and software modules. The Safety Frame safety library for MCUs is the implementation of safety mechanisms allocated to software.

Product Feature

Ø  Can be integrated as a complex driver into AUTOSAR .

Ø  Meet the ASIL-D requirements of the controller.

Ø  Can be integrated into non-AUTOSAR software architecture.

Ø  High scalability: Each module is configurable to meet different customer requirements.

Ø  Internal Program Flow Monitoring of the Safety Library.

Configuration Tool

To meet the diverse project requirements of customers and enhance the scalability of the Safety Library, the SPC58NH Safety Library has implemented the configurability of each module and has developed a configuration tool for the Safety Library. Customers can complete the configuration of various modules of the Safety Library using the configuration tool according to different needs. They can generate configuration code files, and integrate the generated configuration files into the project.

Run Phase

Ø  Pre-Run Phase

This phase is for testing the safety mechanisms of the MCU. During this phase, the Fault Control and Communication Unit (FCCU) is in the Normal state, and this phase is generally performed before the operating system (OS) starts up.

Ø  Run Phase

This phase occurs while tasks are running. The FCCU remains in the Normal state, and this phase takes place during the operation of the OS.

Process Documentation

The ST SPC58NH Safety Library is designed to assist customers in achieving functional safety requirements based on the SPC58NH platform. The Safety Library is highly scalable and can be configured and redeveloped according to different customer project requirements, ultimately meeting the customers' functional safety requirements.

The SPC58NH Safety Library is used to implement the software safety mechanisms of the SPC58NH, including the testing of internal MCU modules and the driving of hardware safety mechanisms.

The SPC58NH Safety Library can be applied to controllers that require functional safety levels.

For example:

Ø  Motor Controller

Ø  Battery Management System

Ø  Chassis System Applications

Ø  Electronic Stability Control

Ø  Electric Power Steering

Ø  Chassis Domain Line Control System Applications

Ø  Radar Applications

By integrating the Safety Library into the control based on SPC58NH, it is possible to meet the ISO 26262 ASIL-D level requirements.

Functional Safety Certificate

CERTIFICATE

ZC.MUNIU SOFTWARE COPYRIGHT REGISTRATION CERTIFICATE

ZC. MUNIU SOFTWARE PRODUCT REGISTRATION CERTIFICATE

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