NXP S32 User Manual

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NXP Semiconductors

SAF

V2.4

AP Software

4/18/2021

Software Development

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All information hereunder is per NXP’s best knowledge. This document does not provide for any representation or warranty express or implied by NXP. NXP makes no representation or warranty that

customer’s applications or design will be suitable for customers’ specified use without further testing or

modification. Customers are responsible for the design and operation of their applications and products using NXP products, and NXP accepts no liability for any assistance with applications or customer product design. Customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products.

For reliable information on the NXP product please consult the respective NXP data sheet. Unless otherwise recorded in a written agreement, all sales transactions by NXP are subject to our general terms and conditions of commercial sale. These are published at http://www.nxp.com/about/about-nxp/our-

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S32 Safety Software Framework

Product Brief

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SAF

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Software Development

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NXP S32 Safety Software Framework.

The same SAF API, slightly different functionality.

S32S/E/Z

S32K

S32R/V

S32G

1.0 Software Product Overview

The S32 Safety Software Framework (SAF) is a software product containing software components for establishing the safety foundation for customer’s safety applications compliant with ISO 26262 functional safety. It allows integration up to ASIL D automotive safety integrity level. It is developed as Safety Element out of Context (SEooC). The S32 Safety Software Framework is designed to be integrable within AUTOSAR® and non - AUTOSAR applications. It is a software product covering all NXP S32 Automotive Platform devices (see Figure 1, S32K in a separate package).

Vehicle

Networking

Gateway,

Domain Controllers

ADAS &

Autonomous

Driving

Body & Comfort

Powertrain & Vehicle

Dynamics

Radar, LIDAR

Vision

Sensor Fusion

Body Electronics

Edge Nodes

Chassis & Safety

Powertrain & Hybrid/EV

Figure 1. NXP’s S32 Safety Software Framework supporting all NXP S32 devices

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Software Development

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Fu Safety

The S32 Safety Software Framework provides the software modules from Hardware and Service safety layers as shown in Figure 2. The Software modules provided are:

- BIST Manager - Built in Self-Test Manager covering both LBIST (Logic BIST) and MBIST (Memory BIST)

- eMCEM – extended Microcontroller Error Manager

- Mode Selector – Mode Selector (including Safety Config)

- sBoot – Safety Boot

- SquareCheck – Square Check (Check the Checkers)

- SW Recovery – Software Recovery

* SbSW – Safety by SW

Figure 2. NXP’s S32 Safety Software Framework content

Note: The users who will develop their own safety solution can use the S32 Safety Peripheral Drivers (SPD) product containing the BIST Manager and eMCEM. It complements the S32 Real Time Drivers product to provide software support for the on-chip peripheral modules.

Service Safety Layer

HW Safety

Layer

BIST Manager

SW Recover

e M

Flash

Controller

Computational Shell

+ IO Peripherals

R52 R52

A53 A53

Comm + IO Perip

SWT

SbSW IP

HW Safety

Measures

ECC

CMU

FCCU

ERM

STCU

MBIST

LBIST

NXP

Microcontroller

+ 6 hidden pages