Lattice Semiconductor PAC-POWR1220AT8-HS-EVN Operating instructions

Brand
Lattice Semiconductor
Model
PAC-POWR1220AT8-HS-EVN
Type
Operating instructions
Power Manager II
Hercules Development Kit
This document provides a brief introduction and instructions to install and run the Power Manager II
Hercules Standard and Advanced Development Kits on Windows 7/Vista/XP. More documentation
can be downloaded from www.latticesemi.com/herculesdevkit.
Check Kit Contents
The Power Manager II Hercules Development Kit
contains the following items:
• PowerManagerIIHerculesEvaluationBoard
pre-loaded with Hercules support demos
• USBconnectorcable
•12VDCwalladapterpowersupply
• QuickSTARTGuide
Static electricity can shorten the lifespan of electronic
components. Please handle the kit components
carefully.
Powering the Evaluation Board
Runningthepre-loadeddemonstrationdoesnotrequireconnectingtheprovidedUSBcabletoa
PC.TheUSBcableisrequiredtomodifythepre-loadeddemo,interfacetoadvanceddemos,or
loadpre-congureddesigns.DonotplugtheUSBcableintothePCuntilafterloadingLattice’s
USBdrivers(includedwithispVM).Thedefaultoperatingsystemdriversarenotcompatiblewith
Latticeprogrammingtools.
This procedure is continued on the next page.
Main 12V DC Supply Main Supply Toggle Switch 1.2V DC-DC Supply
Supply Status
LEDs
PLD Output
LEDs
3-Digit
LCD
Panel
Demo DIP
Switch
Slide
Pot.
VMON9
Mode
Switch
Interface
Select
Switch
Interface
LEDs
USB
External
3.3V DC
Supply
External 12V
Supply
MachXO
LatticeMico8
Reset Switch
Power Manager II
Hercules Development Kit
ThePowerManagerIIHerculesDevelopmentKitUser’sGuideisavailablefordownloadalongwith
thelatestUSBdriversanddesignsoftwareatwww.latticesemi.com/herculesdevkit.
Inthefollowingsteps,theevaluationboardwillbepoweredandmadereadytorunthepre-loaded
demonstrations.VerifythejumpersJ5(VMON7)andJ6(VMON8)selectthe“12V_OR”optionand
notthe“cPCI_HS”option.
1.ConnecttheACadapterfromawalloutlettothepowersocket.Afteraconnectionismadetothe
12Vwalladapterplug,thegreenPWR_3.3VinterfaceLED(D14)willlightupindicatingtheon-
board3.3Vregulator(U1)isoperational.ThePowerManagerIIwillnextilluminatethreesupply
statusLEDs:12V_HS,1.2V_SEQ,andPWR_GOOD(D1,D2,andD7).TheTDO(D12)and
data(D8throughD11)LEDsmayalsolightup.
Run the Demonstrations
Thisstepdescribesthefunctionalityofthepre-conguredPowerManagerIIHerculesdemos:
voltagesupplytrimming,supplymargining,voltagemonitoring,faultmonitoringandlogging.
Operationofthepre-loadeddemosisaccomplishedbysettingthedemoDIPswitchesandpressing
themodeswitch(SW3).Thefollowingtablessummarizethedemoandswitchsettingspertainingto
each of the pre-loaded demos.
Demo
SW3
Up=1
Pressed=0
Demo DIP Switch Setting
Comment
Mode VMON
7 6 5 4 3 2 1 0
Default n/a 0 0 0 0 0 0 0 0 LCD self-test
1 1=CLT, 0=OLT 0 0 0 0 0 0 0 1 Trim 1.2V to <1% error; SW3 = trim mode;
VMON1/LCD = Measured supply voltage
2 1=CLT, 0=OLT 0 0 0 1 0 0 0 1 Margin 1.2V down 7.5%; SW3 = trim mode;
VMON1/LCD = Measured supply voltage
2a 1=CLT, 0 =OLT 0 0 1 0 0 0 0 1 Margin 1.2V up 7.5%; SW3 = trim mode;
VMON1/LCD = Measured supply voltage
3 n/a 0000101112V_HS voltage
VMON11/LCD = Measured supply voltage
4 n/a 00001001Fault monitoring of slide potentiometer voltage (Vpot);
VMON9/LCD = Measured Vpot voltage (0V to 3.3V)
4a 1=Display
0=Clear All 1 x x x x x x x LCD = Total count of faults logged;
Press SW3 to reset count to zero
Demo
SW3
Default=1
Pressed=0
Demo DIP Switch Setting
Comment
Mode VID
76543210
5 1=Hold, 0=Update 0 1 1 1 v8 v4 v2 v1
Add VID (DIP 0-3) value to 1.2V supply voltage;
VID (v8, v4, v2, v1) is a binary value multiplied by 10mV;
For example: 0000b=0*10mV=0V, 0100b=4*10mV=40mV,
1000b=8·10mV=80mV; 1100b=12*10mV=120mV;
VMON1/LCD=Measured supply voltage
5a 1=Hold, 0=Update 0 1 1 0 v8 v4 v2 v1
Subtract VID (DIP 0-3) value to 1.2V supply voltage;
VID (v8, v4, v2, v1) is a binary value multiplied by 10mV;
VMON1/LCD=Measured supply voltage
5b 1=Hold, 0=Update 0 1 0 x x x x x Turn off 1.2V supply; VMON1=LCD
Notes:
1. Themodeswitch(SW3)isequaltoalogicone(1)whennotpressed.Pressingthemodeswitch(SW3)entersalogiczero(0).
2. ThedemoDIPswitches(SW5)areequaltoalogicones(1)whenup.Placingtheswitchesdownmakesthemzeros(0).
3. CLTmeansclosedlooptrimmingmode(supplysetpointistrimmedtoanaccuratevalue).OLTmeansopenlooptrimtoprede-
terminedvalue(supplysetpointisapresetvoltageandnottrimmed).Inotherwords,Demos1and2useeitherCLTorOLTtrim
modedependingontheconditionofthemodeswitch(SW3).
4. PressingthePLDresetswitch(SW4)resetstheLatticeMico8controllerintheMachXO(U4),notthePOWR1220AT8(U3).
5. ThepositionofInterfaceSelectSwitches(SW2)doesnotaffectanyofthetestingintheQuickSTARTguide.
Power Manager II
Hercules Development Kit
Power Manager II Hercules Demos:
• Default State–WithdemoDIPswitchessetasshown(all0’s)theLCDwillcyclethroughitsself-
testsequencealongwiththePLDoutputLEDs.Thisisthedefault(shipped)turn-oncondition.
•Demo 1: Switching Power Supply Trim–ThePowerManagerIITrim-DACoutputtrimsthe
1.2Vsupplytobetterthan1%ofitsfactorysetvalue.ThisisdonebytheispPAC®-POWR1220AT8
andMachXO™usinganexternalclosedlooptrimtoadjustthefeedbackintotheregulatortrim
pin.TheLCDdisplaystheoutputvoltageofthe1.2VswitchingregulatoratVMON1usingthe
ADCinthePOWR1220AT8.Pressingandholdingdownthemode(SW3)switchchangesthetrim
modefromclosedlooptoopenloop.Inthismode,theTrim-DACoutputissettoaxed(stored)
digitalvaluewhichisselectedbytheVoltageProleSelectpinsofthePowerManagerII.
•Demo 2: Power Supply Margin Down–WithdemoDIPswitchessetasshown,thesupplyis
trimmedto-7.5%ofitsfactoryvalue(1.2V-0.09V=1.11V)usingclosedlooptrim.VMON1is
chosentomeasurethe1.2VDC-DCpowersupplyandthevalueisreadbythePOWR1220AT8
ADCanddisplayedontheLCD.Pressingthemodeswitchresultsinthetrimmodeswitching
fromclosedlooptoopenlooptrim.Thismeanstheoutputissettoaxed(stored)digitalvalue
and will not be as accurate as closed loop trim.
•Demo 2a: Power Supply Margin Up–WithdemoDIPswitchessetasshown,thesupplyis
trimmedto+7.5%ofitsfactoryvalue(1.2V+0.09V=1.29V)usingclosedlooptrim.VMON1
ischosentomeasurethe1.2VDC-DCpowersupplyandthevalueisreadbythePOWR1220AT8
ADCanddisplayedontheLCD.Pressingthemodeswitchresultsinthetrimmodeswitching
fromclosedlooptoopenlooptrim.Thismeanstheoutputissettoaxed(stored)digitalvalue
and will not be as accurate as closed loop trim.
•Demo 3: 12V Voltage–ThisisaPOWR1220AT8-enabledversionoftheinput12V.Theinput
12Vcancomefromthe12Vwallpluginputoranexternalsource.ThisvoltageexceedsVMON’s
6Vmaximuminputlimit.Anintermediatevoltageiscreatedbydividingbya4:1resistordivider
network.TheintermediatevoltageisreadatVMON11andappliedtotheinternalADCformea-
surement.Themeasuredvalueisthendigitallymultipliedby4anddisplayedontheLCD.
•Demo 4: Power Supply Fault Monitoring – The slider potentiometer simulates an over/under
voltageconditionona2.5VpowersupplyandismonitoredbyVMON9.Thefullrangeofvoltage
is0Vto3.25V.TheLCDdisplaysthevoltage.VMON9isconguredinthePowerManagerII
in“window”modewithalowertrippointof0.75Vandanuppertrippointof2.25V.Whenthe
voltageatVMON9isabovetheupperorbelowthelowertrippointafaultisdetectedbythe
PowerManagerII.ThesefaultsaredetectedandcountedforreadoutinDemo4a.Cyclingboard
power will also result in a fault being recorded. Note: These faults were not programmed to cause
a PWR_GOOD failure.
•Demo 4a: Fault Logging–TheLCDdisplaysthetotalcountoffaultsrecordedbythePower
ManagerIIandMachXO.Pressingthemodeswitch(SW3)clearsalltherecordedfaults.Faults
aredetectedbythePowerManagerIIwhenthesliderpotentiometerisoutsidethewindowlimits
(seeDemo4)orwhenpowerisremovedfromtheboard.
•Demos 5 and 5a: VID Voltage–TheTrim-DACoutputofthePowerManagerIIisusedtostep
the1.2VDC-DCsupplybasedonthevalueoftheVID-DIPswitches.Switches3-0providea
4-bitunsignedbinaryvaluerangingfrom0-15.Thisvalueismultipliedby10mVandaddedto,
orsubtractedfrom,thenominal1.2VbasedonthepolarityofdemoDIPswitch4.Forexample,
0000b=0*10mV=0V,0100b=4*10mV=40mV,1000b=8*10mV=80mV;1100b=12*10mV=120mV.
This procedure is continued on the next page.
Power Manager II
Hercules Development Kit
Done!
Congratulations!YouhavesuccessfullydemonstratedthePowerManagerIIHerculesDevelop-
mentKit.PleaserefertothePowerManagerIIHerculesDevelopmentKitUser’sGuideavailable
ontheLatticewebsiteatwww.latticesemi.com/herculesdevkit for the following:
• Runningadvanceddemos,includingvoltagemonitoring,viaI2CusingthePOWR1220AT8
•Detailsonadditionaldevelopmentboardfeaturesandoperation
•ModifyingthegeneratingthedemoprogramlesfromthePAC-Designer®projectsources
•Schematics
•GerberPCBlayoutartwork
Technical Support
IfyouexperienceproblemsrunningthekitdemospleaserefertotheTroubleshootingappendixin
thePowerManagerIIHerculesDevelopmentKitUser’sGuide.Ifproblemspersistorifanykit
contentsaremissing,pleaseemailusat[email protected]orcall1-800-528-8423(USA)
or+1503-268-8001(otherlocations).
QS008
November 2010
latticesemi.com
Copyright © 2010 Lattice Semiconductor Corporation. Lattice Semiconductor, L (stylized)
Lattice Semiconductor Corp., and Lattice (design), ispPAC, LatticeMico8, MachXO and
PAC-Designer are either registered trademarks or trademarks of Lattice Semiconductor
Corporation in the United States and/or other countries. Other product names used in this
publication are for identication purposes only and may be trademarks of their respective
companies.
Whenthemodeswitch(SW3)ispressedthevalueiscomputedfromtheDIPswitchsettingsand
storedasatargetvaluefortheclosedlooptrim.Note:thetrimmingofthe1.2Vsupplyislimited
to+/-150mVof1.2VbasedonTrim-DACrangeandinterfacecircuits.NotallpositiveVID
valuesinsidethisrangecanberealized.TheguaranteedpositiveVIDrangeis110mV,orasetting
of1011b.
•Demo 5b: VID Supply Shut-Down–SettingDIPswitch5toalogiczero(0)andpressingthe
modeswitch(SW3)willresultindisablingthe1.2Vsupply.SettingDIPswitch5toalogicone
(1)andpressingthemodeswitch(SW3)willenablethe1.2Vsupply.Note:Withoutanexternal
load,theoutputofthe1.2VDC-DCsupplywilloatuptoafewtenthsofavolt.
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Lattice Semiconductor PAC-POWR1220AT8-HS-EVN Operating instructions

Brand
Lattice Semiconductor
Model
PAC-POWR1220AT8-HS-EVN
Type
Operating instructions
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