Hardware Virtualization for Pre-Silicon Software Development in

Hardware Virtualization for Pre-Silicon Software Development

in Automotive Electronics

Frank Schirrmeister, Filip [email protected]

Synopsys, Inc.

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Market Trends & ChallengesGrowing electronics content & complexity

y Multi-node, networked ECU architecture typical 8 Complex intra-ECU behavior & inter-ECU interaction8 Meeting quality & reliability requires analysis & diagnosis of complex

hardware/software problemsy Dramatic increase in software content & complexity

8 40% of vehicle cost is attributed to electronics & software cost8 50-70% of ECU development cost is due to software

Need to reduce design cycle times & costy While satisfying global regulations on passenger safety, emissions &

fuel economyy While guaranteeing high quality & reliability

Software & hardware are focused on reliability & qualityy Both for safety-critical functionality and to control warranty costs

Competitive OEM market, complex dynamic of cost & reliabilityy Compete heavily in terms of safety, fuel efficiency & new featuresy But at competitive cost & with high reliability!

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Growing Complexity in Car Software

Source: BMW

System Complexity

Source: Toyota

Software Complexity (Program Size)

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#1 Automotive ChallengesCost Reduction & Supply Chain Collaboration

Cost Reduction cited as #1 challenge facing the Automotive

Design and Engineering Community (32% of users)!

Source: Dupont, 2008

53% of users think an increase in collaboration across the value and supply chain is needed to strengthen

the automotive industry!

Source: Dupont, 2008

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HW/SW Challenge #1: Late Bugs

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HW/SW Challenge #2: Late Start

Software has to wait for hardware => Semi cannot sell silicon and bugs are found late

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Coc

kpiu

t

CAN

Chip(s)

PeripheralModels

Virtual Platform ExampleFast Transaction-level Models - Technology Details

Device Board(s)

Virtual I/O

Mem

CPUModel Bus Model

Simulation InfrastructureTransaction-levelInterfaces

High-speed(SystemC™)C++ Models

Graphical Hardware Models

Emulation of system I/O

Sensor(s)

Actuator(s)

DeviceUnder

Control

User InterfaceEmulation

Fast Instruction-set

Simulators

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ECU in Innovator

Virtual Platform DemoECU in Innovator

Software Debugger

Module Authoring

Module Authoring

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Electronics in the CarA Distributed Embedded System

Source: Alberto Sangiovanni-Vincentelli, “Design of Embedded Systems: Methodologies, Tools and Applications”

Today: More than 80microprocessors and millions of lines of code !

But: Accuracy requirements are widely different

depending on which part of the car electronics is

applied to!

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Transaction-level Modeling Abstraction LevelsWhat Synopsys offers in TLM space

40-60 MIPS

1-10 MIPS

1-100 KIPS

FunctionallyAccurate

CycleApproximate

CycleAccurate

80+ MIPS

Prog. ViewTLM (PV)

PV with TimingTLM (PVT)

Cycle Accurate

Pre-silicon Software Development & Integration

Architectural Exploration& Real-Time SW Development(Profiling)

System Verification& Timing Validation

App ViewTLM (AV)

ApplicationDevelopment

AutomotiveArea

InformationSystems

BodyFunctions

BodyElectronics

Speed

Accuracy

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Modeling Styles

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Loosely Timed Synchronization

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Approximately Timed Synchronization

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The Automotive Supply Chain

Companies

Hardware Developers

Programmers

Processor & Sub-system & IP DeveloperUsers

Software IP / Software Suppliers

Independent Software Developers: Operating Systems: WindRiver, Linux, ecos, itron

Development Tools: WindRiver, Lauterbach, Greenhills, Etas, DSpace

System Integrators

BMWToyotaHonda

GMChrysler

Ford

Subsystem Suppliers

BoschContinental

Magneti MarelliDensoDelphiVisteon

Semiconductor

STFreescaleInfineon

…

Hardware IP

Processors: ARM, MIPS, PPC, X86, Tensilica, ARC,

MeP, CEVAInterconnect: Arteris,

Sonics, Silistix, Peripherals: Synopsys,

Denali

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Drivers

SystemSW

SWintegration

Testing

Firmware

Drivers

• Device drivers, • OS

• Software integration• Software development

• Validate architecture(s) & elect semi supplier

• ECU softwareSoftware

Responsibility

Value Proposition: Design Cycle Reduction

Companies

Semiconductor System IntegratorsHardware IP Subsystem Suppliers


Arch.Design

Hardware

Design

Silicon

Proto

Firmware

Drivers

Drivers

SystemSW

PartDesign Proto System

DesignBench

/ Proto

SWintegration

Testing

Virtual Platform

• Long, sequential development flow

• HW/SW meet late = risk!

• Reduced design cycle

• Develop SW early, find issues early

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The Automotive Supply ChainConcerns, Responsibilities, Value of Virtual Platforms

Actual Platform usage (wireless example)

Early (Pre-HW) Software Development





Responsibility

Companies



Virtual Platforms as Collaboration Tool

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Responsibility

Value Proposition: Design Cycle Reduction

Companies



Virtual Platforms as Collaboration Tool

Actual Platform usage (wireless example)

System Integrators will start to request

models here

Early (Pre-HW) Software Development

Hardw

are Availability

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Value Proposition: Higher Quality & Reliability, Lower Cost

Companies


Technical Concerns

Software Responsibility

Hardware IP

• Architecture analysis• Feature definition, get

designed in by semiconductor house

• Early supplier feedback• Architecture trade-offs

Virtual Platform

Value

• Software development productivity

• Quality & reliability


• ECU software

• Reduce cycle time• Improve quality

More time to testSystematic test methodology

• Improve software productivity

• Reduce costLess bench timeReduce need for prototype

Subsystem Suppliers System Integrators

• Software development productivity

• Quality & reliability

• Software integration• Some: Proprietary OS

plus all development

• Early access• Reduce cycle time• Improve quality

More time to testSystematic test methodology.


• Reduce costLess bench timeReduce need for prototype

Semiconductor

• Architecture analysis• Feature definition, to

get designed in by parts suppliers


• Early supplier feedback


• Architecture trade-offs

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Model-based design for software development“Front load” the design & reduce cycle timeFoster supply chain collaborationHigher quality & reliability, lower cost

Synopsys offers tools, libraries & services to enable virtual platforms

SummaryVirtual Platforms Address Automotive Challenges

Hardware Virtualization for Pre-Silicon Software Development in

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