HOLT HI-8428-R User manual

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QSG‐8428‐RRev.AHOLTINTEGRATEDCIRCUITSOct2014
1
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23351 Madero,
Mission Viejo, CA
92691. USA.
Tel: + 1 949 859 8800
Fax: + 1 949 859 9643
Email: [email protected]
Web: www.holtic.com
HI‐8428‐REightSensorArraywith
Ground/OpenorSupply/Open
andSPIinterface.
EvaluationBoard
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QuickStartGuide
October,2014
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QSG‐8428‐RRev.AHOLTINTEGRATEDCIRCUITSOct2014
2
INTRODUCTION
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ThisboarddemonstratesthefeaturesoftheHI‐8428‐ReightinputdiscretesensorIC.TheHI‐8428‐Ris
poweredfrom3.3V±5%VLOGICand12to16.5VVDDsupplyvoltages.Thedeviceisconfiguredand
sensordatareadbytheSPIserialbus,sensorinputthresholdsarefixedatAirbusspecificationlevels.
TheEVM(EvaluationModule)containsa16bit,FreescaleMC9S12XDT512MCU,thisisusedtointerface
toaterminalemulatorandcontroltheHI‐8428‐R.TheHoltCD,includedwiththeevaluationkit,contains
examplesourcecode,providinganeasypathforthecustomertodeveloptheirowncontrolsoftware.A
SerialUARToutputfromtheMCUprovidesdebuganddatamessagestobesenttoaPCusingany
terminalemulationprogramsuchasTeraTerm.TheHI‐8428‐REvaluationBoard(showninthepicture
below),twoHI‐8428‐RdevicesaremountedontheboardsothecustomercanevaluateSPIdaisychain
operation.
AbankofLEDsmonitorstheoutputsoneitherbankofeightsensors.
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Thisguidesummarizeshowtosetupandgetrunningquickly.Additionalsupportmaterialisprovided
onCD‐ROM.
KITCONTENTS
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ThisUserGuide.
HI‐8428‐REvaluationBoard.

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QSG‐8428‐RRev.AHOLTINTEGRATEDCIRCUITSOct2014
3
CDwithHI‐8428‐RUsersDocumentation.
USBtoMiniUSBSerialCable.
DemonstrationSet‐up
MC9S12XD
16 Bit MCU
U1
HI-8428-R
USB
SENSOR
LEDs (10)
DIP SW
(4) 4MHz
RESET BUTTON
8
Sensor
Inputs
From Sensors DIP SW
(8)
VDD
SUPPLY
VLOGIC
SUPPLY
SENSOR TRIGGER
U2
HI-8428-R
8
Sensor
Inputs
From Sensors DIP SW
(8)
VDD
SUPPLY
SO
SI
SI
SO
SCK
SCK
CE
CE
SEL
SEL
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QSG‐8428‐RRev.AHOLTINTEGRATEDCIRCUITSOct2014
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DefaultJumperSettings
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JUMPERPOSITIONDESCRIPTION
J1ONVLOGICLinkforsupplycurrenttoU1(disconnectto
measureHI‐8428‐RVLOGICsupplycurrent)
J2ONVDDLinkforsupplycurrenttoU1(disconnectto
measureHI‐8428‐RVDDsupplycurrent)
J13ONVLOGICLinkforsupplycurrenttoU2(disconnectto
measureHI‐8428‐RVLOGICsupplycurrent)
J12ONVDDLinkforsupplycurrenttoU2(disconnectto
measureHI‐8428‐RVDDsupplycurrent)
J33U1SensorSwitch‘On’Level
Left=GND/OpenRight=Supply/Open
J63U2SensorSwitch‘On’Level
Left=GND/OpenRight=Supply/Openn
J11OFFInONposition‐holdstheFreescaleMCUinreset,use
thiswhenusinganexternalSPIcontroller.
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QSG‐8428‐RRev.AHOLTINTEGRATEDCIRCUITSOct2014
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DefaultSwitchSettings
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SW1POSITIONDESCRIPTION
SW1,1‐8AllONSensorinputsforU1,Sensors1‐8,useincombination
withJ3
SW2,1‐8AllONSensorinputsforU2,Sensors1‐8,useincombination
withJ6
SW3,PE2ONOFF=BootsupinGND/Openmode.
LEDsmonitorsensors
SW3,PE3ONOFF=BootsupinSupply/Open
LEDsmonitorsensors
SW3,PE4ONOFF=BootsupwithLEDcounterrunning
SW3,PE5ONNoFunction
SW4,ResetOFFPressdowntoresetMCUandrebootsoftware
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QSG‐8428‐RRev.AHOLTINTEGRATEDCIRCUITSOct2014
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ConnectorFunctions
REFNAMEDESCRIPTION
J4pins1‐8SENSE1‐8Directinputtosensors1to8onU1
J4pin9GNDGroundconnection
J7pins1‐8SENSE1‐8Directinputtosensors1to8onU2
J7pin9GNDGroundconnection
J8USBConnecttoPCtosendSPIcommandsfromterminalemulator
J9DebugHeader UsedfordownloadingMCUfirmware
J10ExternalSPISPIinterfaceforU1/U2(InsertjumperJ11whenusingthis)
J11DebugHeader UsedfordownloadingMCUfirmware
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LEDFunctions
REFNAMEDESCRIPTION
LED1‐8SENSE1‐8LEDlightswhensensoroutputis‘high’,whenusingthesoftwareLED
monitorfeature.
LED9BANK1LEDlightswhensensorsfromU1arebeingmonitored,whenusingthe
softwareLEDmonitorfeature.
LED10BANK2LEDlightswhensensorsfromU2arebeingmonitored,whenusingthe
softwareLEDmonitorfeature.
LED113V3LEDlightswhenVLOGICpowerispresent.
LED12VDDLEDlightswhenVDDpowerispresent.
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QSG‐8428‐RRev.AHOLTINTEGRATEDCIRCUITSOct2014
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InitialBoardSetup
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1. Makesuretheboardjumpersandswitchpositionsmatchthedefaultsettingslistedearlier.
Connecta+3.3VpowersupplytoVLOGIC(RED)and0VtoGNDterminals.Connecta+12Vto
+16.5VpowersupplytoVDD(RED)and0VtoGNDterminal.TheVLOGICandVDDterminals
alsosupplyothercomponents,tomeasureonlytheHI‐8428‐Rsupplycurrents;removethe
jumperforthedevicefor(VDDorVLOGIC)andconnectanammeteracrossthetwo
terminals;anaccuratecurrentmeasurementcannowbemade.
2. OnpoweruptheLEDbank,SENSE[8:1]willlightfor1sec,thesoftwarerevisionisthen
displayedonthesameLEDs,SENSE[8:5]beingthemostsignificantdigitandSENSE[4:1]being
theleastsignificantdigit.
BootUpOptions
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1. NormallycontroloftheHI‐8428‐RdevicesisthroughtheonboardMCU,andinterfacingwith
aterminalemulator.Howevertherearethreebootupoptionsselectablethatdonotneed
theterminalemulator,theseareselectedusingSW3,seeswitchtableonpage5.
2. ThePE2optionsetsGND/OpensensormodeforU1andthenmonitorsthesensoroutputson
theSense1‐8LEDs,anilluminatedLEDmeansthatsensorisOpen(High).
3. ThePE3optionsetsSupply/OpensensormodeforU1andthenmonitorsthesensorsoutputs
ontheSense1‐8LEDs,anilluminatedLEDmeansthatsensorisatSupplylevel(High).
4. ThePE4optionstartstheLEDCountTestmode.
5. OptionsarechangedbyalteringSW3andhittingtheResetbutton.
6. WhenPE2,PE3,PE4areallON,thenthenormalsoftwaremodeisselected,seenextsection.

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QSG‐8428‐RRev.AHOLTINTEGRATEDCIRCUITSOct2014
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SoftwareControl
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1. ConnecttheminiUSBleadtoyourPCandthentotheHI‐8428‐Rboard;yourPCshould
automaticallyinstallthedriver.IfnotthedriverFT231canbeinstalledfromtheHoltCD.If
youhaveproblemsinstallingthedriverpleaserefertotheFTDIwebsitebelow:
2. http://www.ftdichip.com/Documents/InstallGuides.htm
3. Fordemopurposes,allcontroloftheHI‐8428‐Risdonethroughthe‘ControlConsole’.This
requiresuseofaterminalemulatorforcommunication,suchasHyperTerminalorTeraTerm.
TeraTermisusedwithWindowsversionsofVistaorlaterandissuppliedontheHoltCD.
ToinstallTeraTerm:
UsetheTeraTerminstaller,suppliedontheHoltCD;runtheteraterm‐x.xx.exeinstaller
program.Acceptthelicenseagreementstatingredistributionispermittedprovidedthat
copyrightnoticeisretained.ThenoticecanbedisplayedfromtheTeraTermwindowby
clickingHelpthenclickingAboutTeraTerm.
oAcceptthedefaultinstalldestinationandclickNext.
oAttheSelectComponentsscreen,unselectalloptionsexceptAdditionalPlugin=
TTXResizeMenuandclickNext.
oSelecttheinstalledlanguage,thenclickNext.
oAcceptthedefaultStartMenufolder,thenclickNext.
oSelectanydesiredshortcuts,thenclickNext.
oAttheReadytoInstallscreen,clickInstall.

RuntheinstalledTeraTermprogram.AttheNewConnectionscreen,select(x)Serialand
choosetheselectedCOMport,findthecorrectCOMportusingDeviceManager.
4. ClickSetupthenSerialPorttoopentheserialportsetupwindow.
ChoosetheCOMportforthemini‐USBconnectionandthenselectthefollowingsettings:
BaudRate:115200,Data:8bits,Parity:none,Stop:1bit,FlowControl:none
5. Theevaluationsoftwareispre‐programmedintotheMCUattheHoltApplicationsSupport
Center.EnsureallSW3switchesare‘ON’,pressthe‘RESETMCU’buttonontheboard,the
softwaredisplaysamessageonthemonitor,similartothescreenshotshownbelow.

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QSG‐8428‐RRev.AHOLTINTEGRATEDCIRCUITSOct2014
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6. Note:Ifunderanycircumstances,thissoftwarelocksup,usethe‘RESET’keytorecover.
7. Presskey‘t’toperformanLEDtest.TheSensor1‐8LEDsandscreenshouldgothrougha
binarycount.Tosetatestdataconfiguration;presskey‘w’towrite9configurationbits,
enter1then55,asshowninthescreenbelow:

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QSG‐8428‐RRev.AHOLTINTEGRATEDCIRCUITSOct2014
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8. Presskey‘c’toreadconfiguration.Thevaluesyouprogrammed(testbit1,config=0x55)
shouldbedisplayedasshowninthescreenbelow:


9. Whenthetestbitissetto‘1’,testdatacanbeplacedintothedatabufferthroughtheSPI
bus,thisisatestfeaturewhichtestsalargeportionofthedevice,butnotthecomparator
andthresholdsettingcircuits.Presskey‘r’toreaddata,onlythetestdatashouldnowbe
read,asshownbelow:


10. ToconfigureallU1sensorsasGND/Openpresskey‘w’andsettestbitto0,thenenterFF.

Press‘c’toreadregistersbacktothescreenandverifythattheconfigurationreads;
00xFF

All8sensorsarenowsettodetecttheGND/Openstates.Theshortcutkeys‘G’and‘S’canalso
beusedthesetallsensorstoGND/OpenandSupply/Openrespectively.
