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VxWorksSBCSupport

toVxWorks5.5willrunintheVxWorks6.x

kernel,withonlyarecompilationrequired.

Bydefault,theVxWorks6.xkernelbuildsas

thatofVxWorks5.5.

VxWorks6.xalsoprovidesincreasedsup-

portforopenstandards.Thispromotes

compatibilitybetweentheoperatingsystem

andopen-sourceapplications,withthese

improvements:

• IncreasedPOSIXcompliancefacilitates

easierportingofopen-sourceandthird-

partysoftwaretoVxWorks

• Standardprocess-basedmodelreduces

thelearningcurveforprogrammingnew

applicationsonVxWorks6.x

• SupportforIPv6enablesdevelopmentof

thenextgenerationofnetworkeddevices

• Standardsockets-basedandmodular

messagechannelsprovideacommon

communicationsinterface

State-of-the-Art Memory Protection

VxWorks6.xenablesmanufacturersto

increasedevicereliabilitythroughMMU-

basedmemoryprotection.VxWorks

introducesprocess-based,user-mode

applicationexecutioninadditiontotradi-

tionalkernel-modeexecution.Thekernelis

protectedfromuser-modeapplicationsrun-

ninginVxWorksreal-timeprocesses.These

arealsoprotectedfromeachother.

WhileVxWorks6.xprovidesMMU-enabled

memoryprotection,itcontinuestousethe

non-overlappedaddressspaceusedinall

earlierversionsofVxWorks.Thenon-over-

lappedmemorymodelpromotesbackward

compatibilitywithlegacyVxWorkscodeand

provideshighdeterminismwithlowlatency.

Error Management

WindRiverprovidesanerrormanage-

mentframeworktohelpcustomersisolate,

diagnose,andcorrecterrorconditions

encounteredduringdevelopmentandtest-

ing.Withinthisframework,customerscan

managefailures,minimizingtheneedto

reproducethefailureinordertodiagnose

thedevice.Theerrormanagementframe-

workincludeserrordetectionandreporting

technology,providesafoundationfor

debuggingdevicesoftwareoutofthebox,

andisextensibletoenablecustomersto

designreliabledevices.

Generic Hardware Support

Differinghardwareplatformsaresup-

portedunderVxWorksviaaboardsupport

package(BSP).TheBSPcontainsasetof

functionsisolatingtheoperatingsystem

fromlowlevelhardwarespecifics,suchas

timers/interruptstructure/VMEinterface

plusdriverstoisolateperipheraldevices

suchasnetwork/serial/USBandothers.

VxWorksBSPshaveafixedinterfaceand

styledefinedbyWindRiverSystems(WRS),

whichcanbeverifiedbyhardwarevendors

usingaValidationTestSuite(VTS)supplied

byWindRiver.Thisapproachallowswide

hardwareplatformsupportwhilegivinga

guaranteeofseamlessoperationwiththe

operatingsystem.ThepreciseBSPdefinition

isalignedtoeachparticular(major)operat-

ingsystemversion,forexampleVxWorks

5.x,VxWorks6.x,VxWorksAE653.

BSPsdeliveredbyGEfortherequiredhard-

warefamilyareseparateitemsfromthe

mainoperatingsystem,whichispurchased

directfromWindRiverandshipswithafull

IntegratedDevelopmentEnvironment(IDE).

BSP and ESP

AGEBSPisengineeredfor“vanilla”stan-

dardusageandfunctionalitywithVxWorks,

includingout-of-the-boxoperation.An

enhancedsupportpackage(ESP)provides

functionalextensionstotheBSP,allowing

driversandapplicationsaccesstohard-

warefunctionalitynotincludedwithinthe

standardBSPdefinitionsmadebytheoper-

atingsystemvendor.

BSPsoperateviaWindRiver-definedinter-

faces.TheESPnecessarilyoperatesvia

GE-definedinterfaces.Thediagrambelow

illustratestheBSP/ESPconcept,andtypical

pathsfromtheoperatingsystemandappli-

cationtohardwarefunctionalblocksvia

theBSPandESP.[BITandBCSareDeployed

Testfirmwares.]

GE Intelligent Platforms

Maintenance Agreements

BSPsandESPsforeachSBCfamilyare

suppliedbyGEunderaMaintenanceAgree-

ment,renewableannuallyifdesired,which

providesexpertsupportandthedistribu-

tionofregularupdates.Thisallowsusersto

beconstantlyup-to-datewithchangesto

accommodatenewhardwarerevisions(e.g.

tocombatdeviceobsolescence),oroper-

atingsystemschangesoriginatingfrom

WindRiverthatmayimpacttheBSPorESP,

togetherwithnewfeaturesandanysolu-

tionsforbugsreportedfromthefield.

Userswhohavealreadycompletedapplica-

tiontestingandhavefrozenforproduction

neednotimplementanysoftwareupgrades

receivedunlessaparticularissueisdeemed

important,butthesemaystillbeuseful

regardingplannedtechnologyrefreshesor

workonnewprojects.

Thepartnumbersfor‘BSPonly’main-

tenance,or‘BSP/ESP’maintenance,are

givenintable1below,withentriesper

hardwarefamily.Note:anESPZincludes

extramulti-processingoptions;anESPC

includesextracommunications-orientated

WindML

LED/Parallel etc. Drvs

Fast Sync/Asyne

Serial PPP

Raw VGA Lib

Sync Ports

SBC Onboard Graphics

USB Ports

VME Interface

DMA Engine

BCS

BIT

Initialization

Std Drivers

VME Functions

Low Level Flash

TrueFFS drv

Bootrom

Backplane Protocol

File.Net/Console

USB Protocol

TrueFFS

File System

User / System

Flash

Basic I/O

Devices

VxWorks

Kernel

APPLICATIONWorkbench IDE

APPLICATION

HARDWARE

ESP

Tools &

Applications

BSP

WRS core O/S

Host

WRS Layers

Memory / Bridge

/ PCI Architecture

1 2 3 4

VxWorksSBCSupport 1

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