TC8 Conformance Testing of Automotive Ethernet Networks...Ethernet Link TAPping Automotive Ethernet...

V1.0 | 2019-05-01

Vector Testing Symposium 7.5.2019 | Heiner Hild

TC8 Conformance Testing of Automotive Ethernet Networks

2 © 2019. Vector Informatik GmbH. All rights reserved. Any distribution or copying is subject to prior written approval by Vector. V1.0 | 2019-05-01

Communication Networks in Domain Centric E/E Architectures

Overview + Motivation


Communication Networks in Domain Centric E/E Architectures


DiagnosisTester

PowertrainDomain Controller

BodyDomain Controller

ADASDomain Controller

InfotainmentDomain Controller

ChassisDomain Controller

Engine

Transmission

Battery Man.

ESC

Steering

Airbag

Doors

Seats

Lights

Radar

Camera

Lidar

HMI

HUD

Radio

HS-C

AN

Fle

xRay

/ H

S-C

AN

CAN

/ L

IN

Eth

ern

et

Eth

ern

et

/ M

OST

Ethernet

EthernetCar2X

Ethernet Ethernet

Ethernet

Ethernet

Central Gateway


Access to Automotive Bus Systems


DiagnosisTester Car2XCentral Gateway

USBPowertrainDomain Controller



Engine

Transmission

Battery Man.

ESC

Steering

Airbag

Doors

Seats

Lights

HS-C

AN

Fle

xRay

LIN

How about Ethernet ?



u Automotive Ethernet Testing

OPEN Alliance SIG

Examplary Ethernet Test System

Summary

Outlook VT System

Agenda


u All links in Automotive Ethernet networks are Point-To-Point connections → No Bus !

u Full Duplex transmission

u More than 2 signal states (e.g. PAM3 at 100BASE-T1)

u Each link requires one PHY per link partner → multiple PHYs in switches

MDI Media Dependent Interface

MII Media Independent Interface

Link Partners in Automotive Ethernet Networks

Automotive Ethernet Testing

SwitchECU 1

PHY(Master)

MDI

µC

MII

PHY(Slave)

MDI

MII

PHY(Master)

MDI

MII

µC

ECU 2

PHY(Slave)

MDI

µC

MII


Access to Automotive Ethernet Networks


DiagnosisTester

PowertrainDomain Controller


InfotainmentDomain Controller

Radar

Camera

HMI

HUD

Radio

Car2X

Lidar

ETH / PCI Express

Test Access Points (TAPs)

for each link of interest

Central Gateway


ADASDomain Controller


Ethernet Link TAPping


ECU 1

PHY(Master)

MDI

µC

MII

ECU 2

PHY(Slave)

MDI

µC

MII

Monitoring TAP (PHY-TAP)

u Link on PHY level

u Minimum latency

u Constant latency

Stimulating TAP (MAC-TAP)

u Link on MAC level

u Introduction of additional data

u Generated e.g. with CANoe.Ethernet




u OPEN Alliance SIG


Summary

Outlook VT System

Agenda


Standardisation: OPEN Alliance Special Interest Group (SIG)

OPEN Alliance SIG

Interoperability & Compliance Testsfor 100BASE-T1 PHYs

100BASE-T1 Ethernet Channel & Components

1000BASE-T1 CMC Requirements

Tools

Gap Identification

Common xMII Interface Definition

1000BASE-RH Gigabit Ethernet over Plastic-Optical-Fiber (GEPOF)

Automotive Ethernet ECU Test Specification

1000BASE-T1 Ethernet Channel & Components

Automotive Ethernet Sleep/Wake-Up

Ethernet switch requirements and qualification

Test specs for the compliance testing of future IEEE 1000BASE-T1… devices

TC1

TC2

TC3

TC4

TC5

TC6

TC7

TC8

TC9

TC10

TC11

TC12

http://www.opensig.org


Standardisation: OPEN Alliance Special Interest Group (SIG)

OPEN Alliance SIG

Automotive Ethernet ECU Test Specification

TC8

http://www.opensig.org

u Shares requirements on Automotive Ethernet ECU testingof Conformance + Interoperability

u Defines specifications applicable to all ECUs in an Automotive Ethernet network based on these shared requirements.

u Defines test process and supports the establishment of test houses that can perform the ECU tests

u Establishes regular audits of the test specification and the partner requirements to increase the communication quality of the Ethernet ECUs and network in an automotive system

Target: Testing on ECU level as early as possible in the devlopment phase


AutomotiveEthernet

TCP/IP ProtocolFamily

Automotive Protocols

Automotive ISO/OSI Layer Model – Application Areas and TC8 Test Scopes

OPEN Alliance SIG

TC8 ECU TestTest Scopes

7

Physical

Data Link

Network

Transport

Application

ISO/OSI Layer

SOME/IP DoIP XCP

TCP/UDP

IPv4/IPv6

AVB / TSN

IEEE Ethernet MAC + VLAN

Ethernet PHY(IEEE 100BASE-T1, IEEE100BASE-Tx, IEEE1000BASE-T)

6

5

4

3

2

1

Command / Control communication

Diagnostics andFlash Update

Measurement andCalibration

Audio/VideoTime Sync


AutomotiveEthernet

TCP/IP ProtocolFamily

Automotive Protocols

Application

Transport

Network

Data Link

Physical

Test Groups in the TC8 Tests

OPEN Alliance SIG

TC8 ECU TestTest Scopes ISO/OSI Layer




OPEN Alliance SIG

u Examplary Ethernet Test System

Summary

Outlook VT System

Agenda


Target

u One Test System forall ISO/OSI layers

Test System CANoe + vTESTstudio + VT System



u Implementation in vTESTstudio

u Test configuration

u One global parameter file(general settings for the DUT, e.g. IP address)

u One specific parameter file for each Test Group

TC8 Test Implementation



u Specific Test Code on ECU

u Specific Stub Functions

to prepare ECU for test

(typically CAPL)

u E.g. ARP-Test:

Stub Function

„Clear ARP Table“

ensures

cleaned MAC address table

before test execution

u Simulated Reference DUT

(„Golden Sample“) in CANoe

to run TC8 Tests fail free

TC8 Test Execution



TC8 Test Spec Example OABR_CABLE_01: Cable diagnostics for near and far end open


Source: OPEN Alliance TC8 Automotive Ethernet ECU Test Specification v2.0

Test Steps

1. The DUT cable diagnostic feature is triggered. The DUT cable diagnostics has to be executed within terror

2. The test system creates a cable error for a defined time terror

3. After the wait time t the test system reads out all identified cable errors QC from the DUT

4. Repeat step 1 to 3 for all error combinations (alternately MDI+ and/or MDI- are open)

Test Goal

Ensure that the DUT’scable diagnostic reliablydetects an open of one orboth of the bus lines

Test Setup forFar Open Test


u 6 Automotive Ethernet channels on separate piggy board

u 2x 100BASE-TX/1000BASE-T channels on main board

u High precision time stamps for Ethernet frames

u Synchronization with multiple bus interfaces

u Hardware sync (1 µs accuracy)

u Ethernet Monitoring between two nodes

u Media conversion between 100BASE-TX/1000BASE-T and Automotive Ethernet channels

u Flexible, hardware based monitor filter

u Multiple, configurable Test Access Points (TAPs)

u Monitoring TAP: test mode with constant and very low latency with direct PHY connection

u Stimulation TAP: channel connection an MAC level. This allows transmission of additional packets

u Configurable layer2-switch operation mode

u Further Ethernet Interfaces available

VT6306 Ethernet Interface



VN5610A VN5640VT6306 +

piggyVN5620 VN5430

User Ports

100/1000BASE-T1 2x 100BASE-T1 12x 6x 4x 6x

10BASE-T/100BASE-Tx/1000BASE-T

2x 4x 2x -- --

CAN / CAN FD 2x 2x -- 2x --

I/O Channels 1x digital1x analog5x digital

Arbitrarynumberfrom VT System

1x digital --

Fault Injection on physical layer no no yes no no

Host Connection USB2.0 USB3.0 PCI ExpressUSB3.1 Ethernet

Ethernet

Powering USB / External External via VT SystemUSB /

ExternalExternal

Automotive Ethernet Interfaces



u Automotive Ethernet

u Occurrence in modern EE architectures

u Difference to classical Bus Protocols

u Link Access with TAPs

u OPEN Alliance SIG

u Structure

u TC8 – Tests with Test Scopes for all ISO/OSI layers

u Exemplary TC8 Test System

u Test implementation in vTESTstudio: Parameter files to adapt to specific ECU

u Test execution with CANoe: Stub Functions acting on specific test code + Golden Sample

u DUT interfacing with VT System / various ETH interfaces

TC8 Testing - Summary

Summary




OPEN Alliance SIG


Summary

u Outlook VT System

Agenda


Characteristics▪ Basis modules▪ No direct SUT connection

Gaps▪ PC Power▪ High Speed▪ Network

channels▪ Image

Processing▪ …

Characteristics▪ Function Blocks▪ Fault Injection▪ Break Out▪ Status LED

Characteristics▪ Simple IO▪ Many channels▪ Test System or ECU

VT System Concept

Outlook VT System

Charatecristics▪ Function Blocks▪ Fault Injection▪ Break Out▪ Sim / Ori switch▪ Status LED

ECU / IO

Network

System

Infrastructure

Gaps▪ 48V grids▪ High Current▪ High Speed▪ …

Existing▪ VT1004A▪ VT2004A▪ VT2516A▪ VT7001A

Test

Syste

m

Gaps▪ Gbit Ethernet▪ Further serial

busses▪ …

Existing▪ VT6104A▪ VT6204▪ VT2710

Existing▪ VT6000▪ VT8006A▪ VT8012A▪ Housings▪ Power

Supplies

Gaps▪ Switch Matrix▪ …

Existing▪ VT2816▪ VT2820▪ VT2848


Motivation

u Switching of higher currents

u PWM switching / bouncing contact simulation

u Many switching cycles (endurance tests)

Main Features

u Size of switch matrix: 8 columns x 4 rows

u Current carrying capability per switched path: max. 16A

u Coupling of channels for higher currents possible

u Switched voltage up to 60V

u Modular Design → aggregation to bigger switch matrices possible

u Solid State Relay (SSR) technology → wear-free switching for endurance tests

u Fast switching with min. 10 kHz possible e.g. for bouncing contact simulation

VT2832 - Switch Matrix Module

Outlook VT System


Use Cases

u Current switching + measurement

u PWM switching / bouncing contact simulation

u Endurance Tests

Configuration

u Each switched path is given a unique colour

u Connected paths are given thesame color

u Each column can be switchedindependently with PWM orbitstream

u PWM and bitstreamconfiguration is identical toother VT System modules

VT2832 - Switch Matrix Module

Outlook VT System


Use Cases

u Highly synchronized output of analog and/or digital signals

u Fast data exchange between User FPGA modules

Realisation

u Ring architecture between User FPGA processor boards

u Simultaneous flashing of multiple VT System User FPGA module is now possiblein VT System FPGA Manager

Inter Board Communication (IBC) between User FPGA Modules

Outlook VT System

Enabler Check Box

Receiver Matrix

Sender Dropdown

Multi Module Project Setup


48V – Vehicle Power Support

Motivation

u Hybrid 48V / 12V electrical systems are becoming more important

u Testing of 48V EE systems requires measurement / stimulation > 54V

Main Features

u 60V capability

u Solid State Relay (SRR) based solution

u Solutions for

u ECU outputs: VT1104 (60V-Variant of VT1004A

u ECU Power Supply: VT7101 (60V-Variant of VT7001A)

u Configuration concept is maintained

u Internal Power Supply of VT7101 up to 60V / 0.5A

Outlook VT System

VT1104

VT7101

DC measurement l l

DC output l

Arbitrary curves l

Fault injection / switching l l


VT2808 Current Measurement Module

Outlook VT System

Motivation

u Current measurement on ECU I/Os is often required as a separate task

u Limitations of available VT System options for current measurement

u VT2816u 8 channels up to 5A

u cost per channel = ok / range + accuracy sometimes too small

u VT7001Au 2 channels up to 100A

u range = ok / cost per channel relatively high due to further functions

Main Features

u 8 current measurement channels

u Measurement range: 1 mA … 16A onboard

u Switch to external shunts (off-board) for increased measurement range

u Voltage measurement up to 60V against external potential

u Detection + indication of current flow direction

u Determination of conducted power per channel


VT60xx Next Gen RT Module (Concept)

Outlook VT System

Motivation

u Number of bus channels with VT6051A is limited to 16

u Some applications e.g. realtime simulations require higher computing power

u More Ethernet connectors e.g. for LXI measurement devices or PC coupling

u Connector system for host uplink PCIe (x1) over cable is discontinued

Main Requirements

u Processor minimum intel Core i7 Gen.7 / QuadCore

u Minimum 32 bus channels can be operated via VT System Network Interface

u Minimum 2 additional Gbit/s general purpose Ethernet ports (min. 4x overall)

u Minimum 2 USB3.0 ports

u Space consumption: 2 slots in VT System Housing


Author:Hild, HeinerVector Germany

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TC8 Conformance Testing of Automotive Ethernet Networks...Ethernet Link TAPping Automotive Ethernet...

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