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Similar to Project Field Programmable Gate Arrays(FPGA)
Similar to Project Field Programmable Gate Arrays(FPGA) (20)
Project Field Programmable Gate Arrays(FPGA)
- 1. FPGA-BASEDIMPLEMENTATIONFORAVIONICSINDUSTRY
1.INTRODUCTION
Aircraftdatabussystemsallowavarietyofavionics
equipmenttocommunicatewithoneanotherand
exchangedata.Bussystemscanbeeitherbidirec-
tionalorunidirectional,andtheycanalsobeserial
orparallelbitsofdata.Becauseoftheconstraints
imposedbyconductorlengthandweight,allpracti-
calaircraftbussystemsarebasedonserialdata
transfer.Foranexample,thisautopilotdirector
systemhasbeendesignedusingfieldprogramma-
blegatearray(FPGA)-basedtechnologyandin
normalsituation,awordHELOwillbedisplayed
oncethemainsystemisbeingswitchedON.There-
fore,issuewiththeautopilotdirectorcomputersas
showninFigure1.
2.PROPOSESSYSTEMAPPLICATION
Oneexamplesysteminvolvingtheautopilotisan
airbornecollisionavoidancesystem(ACAS).Itis
anaircraftsystemthatoperatesindependentlyof
ground-basedequipmentandairtrafficcontrolin
warningpilotsofthepresenceofotheraircraft
thatmaypresentathreatofcollision.Iftheriskof
collisionisimminent,thesystemindicatesama-
noeuvrethatwillreducetheriskofcollision.noeuvrethatwillreducetheriskofcollision.
Basedonthereportandschematicdiagrampro-
videdbyaircraftmaintenanceengineerasshown
inFigure2,awordHELOhasnotbeendis-
played,itjustablankcomputersscreen.It’sshow
thatsomethingwrongwiththecircuitandits
probablyfailedtodetectanywarningsignonthe
autopilotcomputer.
3.OBJECTIVES
Toidentifyandtroubleshottheproblems
withtheschematicdiagramandFPGA
board.
TodeterminerelationshipbetweenFPGA
withelectronics.
Toappreciateelectric&electronicdevice
inavionicindustry.inavionicindustry.
4.RESULTANDANALYSIS
Fromthetaskgiven,wearerequiredtoinvesti-
gateandsolvetheissuewiththeautopilotdirec-
torcomputersasshowninFigure1,andgeta
wordHELOwillbedisplayedoncethemain
systemisbeingswitchedON.Wemanagetoget
wordHELOontheFPGAscreenafterthemodifi-
cationofthelogicgateattheboardsystem.
Figure3showthediagramafterthemodification
process,awordHELOhasbeendisplayedon
computersscreen.WhileFigure4showword
HELLOthatwemanagetogetafterthemodifica-
tion.It’srepresentthesysteminnormalcondition
andmanagetodetectanywarningsignonthe
autopilotcomputer.
5.CONCLUSION
FPGAoffermanyadvantageanddesignedtobe
configuredbyacustomeroradesignerafter
manufacturing..Inadditiontodigitalfunctions,
someFPGAshaveanalogfeatures.Themost
commonanalogfeatureisprogrammableslew
rateanddrivestrengthoneachoutputpin,
allowingtheengineertosetslowratesonlightly
loadedpinsthatwouldotherwiseringunacceptloadedpinsthatwouldotherwiseringunaccept-
ably,andtosetstronger,fasterratesonheavily
loadedpinsonhigh-speedchannelsthatwould
otherwiseruntooslow
6.REFERENCES
•http://en.wikipedia.org/wiki/Fpga
•http://www.indiamart.com/sysargus/electroni
c-equipment-manufacturingservices.html
•http://www.siglead.com/eng/fpga/sp3990_ss
dfpgaboard.html