ENTESLA PIC KICK User manual

PIC KICK
USER MANUAL
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Aproductof

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PIC Kick User Manual
Embedded Designs and Solutions
Features
1. On-boardMicrochip’sPIC18f4520microcontrollerwithserialbootloader
(Externalprogrammernotrequired*).
2. Powerjackforanexternalpowersupplyfrom8to16VAC/DC.Alternativelythe
boardcanbepoweredthroughtheon-boardminiUSBconnector.
3. ConnectortosupportMICROCHIP’sprogramming/debuggingproductline(ICD2,
ICD3,PICkit2andPICkit3)andsimilardevelopmenttools.
4. OnboardUSBtoSerialconvertertoimplementUARTcommunicationusingthe
standardUSBportonthecomputer.
5. DirectPortAccesstoalltheportpinsforinterfacingexternalcircuitsand
ADD-ONs.
6. 16x2CharacterLCDinterfaceoperatingin4-bitmodeand a potentiometerto
varythecontrastofCharacterLCD.
7. Replaecablecrystalof12MHztoclockthemicrocontroller.
8. PushbuttontohardwareresettheMCU.
9. FourPushButtonstoprovidedigitalinputtoselectedGPIO.
10. FourLEDstodisplaystatusofselectedGPIOpinswithanoptiontodisableusing
ajumper.
11. VariableAnalogInputusingapotentiometertoaselectedchannel.
12. OnboardUSBconnectortocommunicateoverUSB.
13. Well-documentedtopandbottomsideforeasyhardwaretroubleshooting.
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*Iftheserialbootloaderpresentontheinternalflashromiserasedthemicrocontrollercannot
beprogrammedusingtheUSB-UARTbridge.AnexternalICSPProgrammerwouldberequiredto
reprogramthebootloaderintotheflashofthemicrocontroller.

PIC Kick User Manual
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Embedded Designs and Solutions
CopyrightNotice
Thecontentsinthisdocumentcanbesharedandusedforeducationalandcommercial
purposewithapriorpermissionfromENTESLA.
Disclaimer
Reasonablecarehasbeentakentopreparethisdocument,butnoguaranteeisgivento
correctnessofitscontent.Ourproductsareundercontinualimprovementandwe
reservetherightstomakechangeswithoutanynotice.
Trademark
Alltrademarksarepropertiesoftheirrespectiveowners.
MICROCHIP®isaregisteredtrademarkofMicrochipTechnologyInc.
RevisionHistory
Revision
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RevisionHistory
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Date
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v
1.0
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FirstRelease
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August
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201
1
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PIC Kick User Manual
Embedded Designs and Solutions
TableofContents
SectionNo.
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SectionName

PageNo.

1
.

CopyrightNotice

3

2
.

Disclaimer

3

3
.

Trademark

3

4
.

RevisionHistory

3
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5
.
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PackageContents
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5
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6
.

GettingStarted

5

7
.

Introduction
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6

8
.
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SafetyInstructions

6

9
.

PowerSupply

7

10
.
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MicrocontrollerandOscillatorCircuit

8
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11
.
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Reset

8
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12
.
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Programmer/DebuggerInterface
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9

13
.
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LEDs

10

14
.
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PushButtons

11

15
.

AnalogInput

11

16
.

CharacterLCD(4
-
bitMode)

12

1
7
.

UART

13

18.

USB
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1
4
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19.
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DirectPortAccess
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15
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PIC Kick User Manual
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Embedded Designs and Solutions
PackageContents
·PICKICKdevelopmentboardwithPIC18f4520microcontroller.
·USBCable.
·CharacterLCD.
GettingStarted
1. ThePICKICKDevelopmentBoardshipswiththefollowingconfiguration
·APIC18f5420microcontroller.
·A12MHzCrystal.
·Alljumpersindefaultposition.Thedefaultpositionismarkedby a
bracketedwhitelinesetagainstthejumperpositionasshownin
Figure.1.
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2. PowertheboardeitherusinganexternaladapterorusingtheUSBporton a
computerconnectedtotheUSB-UARTsection.Thesourceofpowerisselected
usingthejumperJP1.
3. Themicrocontrollershippedwiththedevelopmentboardcomespre-
programmedwithanLEDdemocode.WhenboardispoweredON,theuserLEDs
startblinking.
4. ExploretheUserManual,ApplicationnotesandDemosourcecodewhichcanbe
foundonthewebsite.
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Figure.
1
1
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Jumper placed in
default position

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PIC Kick User Manual
Embedded Designs and Solutions
Introduction
FirstlywewouldliketothankyouforyourinterestinPICKICKdevelopmentboard.We
hereatENTESLAbelieveinprovidingyouqualitydevelopmenttoolsforrealizingyour
innovativeideasinthefieldofembeddedsystems.
PICKICKisanembeddedsystemdevelopmentboardforMicrochip’s40pin8-bit
microcontroller.Itisalowcostkickstartboarddesignedtohelpprofessionals,students
andamateurstoexplorethecapabilityofPIC16,PIC18architectureandpractice
applicationdevelopmentforvariousinterfaceswithminimalhardwarereconfiguration.
ThePICKICKDevelopmentboardcomeswith a usermanualwithschematics,demos
andsourcecodesforgettingstartedwithPIC18f4520microcontroller.Theuserisfree
tousethelibrariesprovidedwiththeboardandmakechangessuitingtheirneeds.
SafetyInstructions
§Readtheusermanualcarefullyforexactjumperposition.
§Keepthedevelopmentboardawayfromhumidenvironment.
§Ensurethatyousupplytheboardwith9to16VoltsAC/DC.
§DisconnectthepowersupplybeforeconnectingLCDorotherexternalcircuit.
§Allcautionsandwarningsshouldbenoted.
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Figure.2
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PIC Kick User Manual
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Embedded Designs and Solutions
PowerSupply
ThePICKICKdevelopmentboardcanbepoweredeitherusinganexternalpower
supplyorUSB.Forexternalpowersupply,ensurethattheoutputisinrangeof8to16
VoltsAC/DCwith aminimumcurrentratingof200mA.AnonboardLM7805voltage
regulatorisusedtoregulatetheAC/DCinputto+5VD.Coutput.Electrolyticcapacitors
areusedtoreducetheripplesinthevoltage.Theceramiccapacitorsareusedto
suppressthehighfrequencynoisepresentattheoutputofthevoltageregulator.
Inabsenceofexternalpowersupply,theboardcanalsobepoweredby a
computer’sUSBportusingtheUSB-UARTbridge.Ajumper(JP1)isprovidedtoselect
thepowersourceandanLEDisusedasanindicator.
Figure.3illustratestheschematicofthepowersupplysectiononthePICKICK
developmentboard.
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Figure
.
3
3
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Figure.
4
3
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PIC Kick User Manual
Embedded Designs and Solutions
MicrocontrollerandOscillatorCircuit
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ThePICKICKdevelopmentboardfeaturesMicrochip’sPIC18f4520microcontroller.The
microcontrollerfeatures1.5kBofRAM,32kBofon-chipflashROMand256Bytesof
EEPROM.TheFigure.5belowillustratesthemicrocontrollerandtheoscillatorcircuit.
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Thedevelopmentboardcomeswithareplaceable12MHzcrytaloscillator.Using
theinternalPLLblockofPIC18f4520,theprocessorcanbeclockedatupto40MHz.
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Reset
AresetisgeneratedbyholdingtheMCLRpinlow.Asshownin
Figure.6.Resetbuttoncanbeusedtoresetthemicrocontroller.
ThestateofMCLRcanalsobecontrolledusingaPCbasedutilityor
theMPLABIDEifanICSPprogrammerisused.
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Figure.5
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Figure.6
5
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PIC Kick User Manual
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Embedded Designs and Solutions
Programmer/DebuggerInterface

ThePICKICKDevelopmentboardprovidesanoptiontoprogramthemicrocontroller
on-boardusingtheon-chipserialbootloaderorusinganICSPprogrammer.
ProgrammingusingOn-Chipbootloader
ThePIC18f4520onPICKICKdevelopmentboardshipswithanon-chipserial
bootloader.TheUSB-UARTbridgecanbeusedtodownloadtheprogramcodeintothe
internalflashrom.
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ProgrammingusingICSPProgrammer/Debugger
ThePIC18f4520programmercanalsobeprogrammed/debuggedbyIn-Circuit
SystemProgrammingInterface(ICSP)using acompatibleprogrammer/debuggersuch
asPICkitorICD.
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Note:Iftheserialbootloaderpresentontheinternalflashromiserasedthe
microcontrollercannotbeprogrammedusingtheUSB-UARTbridge.
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Figure.7
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Figure.8
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Figure.9
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PIC Kick User Manual
Embedded Designs and Solutions
LEDs
Thereareatotalof4LEDsconnectedtotheportpinsofthemicrocontrolleronPIC
KICKDevelopmentBoard.TheLEDsareconnectedtoPORTpinsRD0,RD1,RD2,RD3.
ThejumperJP6canbeusedtoenableordisabletheLEDsonthedevelopmentboard.
TheschematicoftheLEDinterfaceisshowninFigure.11.TheFigure.10belowshows
thejumperpositiontoenabletheLEDs.
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Figure.1
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Figure.1
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PIC Kick User Manual
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Embedded Designs and Solutions
PushButtons
ThePICKICKDevelopmentboardhasatotalof4PushButtonsconnectedtoportpins
RA2,RA3,RA4,RA5ofthemicrocontroller.Theportpinstowhichthepushbuttonsare
connectedarepulleduptodefine a Logic‘1’whenbuttonisnotpressed.Onbutton
pressaLogic‘0’isappliedtothemicrocontroller.TheFigure.12belowshowsthe
schematicforpushbuttonsinterfacedtothemicrocontroller.
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AnalogIn
ThePIC18f4520has13analogchannelsconnectedto a 10-bitAnalogtoDigital
Converter. A PotentiometerPOT2providestheanaloginputtotheRA0pinofthe
microcontroller.UserhasanoptiontoenableordisableAnalogIntoRA0usingjumper
JP5.TheFigure.15belowshowsthejumperpositiontoconnectanaloginputto
RA0/AN0channel.TheschematicofanaloginputisshowninFigure.14.
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Figure.1
2
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Figure.1
3
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Figure.1
4
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Figure.1
5
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PIC Kick User Manual
Embedded Designs and Solutions
CharacterLCD(4-bitMode)
PICKICKDevelopmentboardprovidesaconnectortointerfaceaCharacterLCDof16
columnsand2rows.Eachcharacterismadeupof5x7pixels.ThedatalinesoftheCLCD
areconnectedtohighernibbleofPORTDandcontrollinestoportpinsRB2andRB4.
TheFigure.16illustratestheschematicforoperatingtheLCDin4-bitmode.
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ApotentiometerPOT1isprovidedtomanuallycontrolthecontrastoftheLCD.

Note:DonotplugtheCLCDintoitsconnectorwhilethepowerisswitchedON.It
maydamagetheCLCDpermanently.
Figure.1
6
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Figure.1
8
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Figure.1
7
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PIC Kick User Manual
13
Embedded Designs and Solutions
UART

ThePIC18f4520microcontrollerfeaturesanonchipEnhancedUSARTperipheral.PIC
KICKdevelopmentboardfeaturesanon-boardUSB-UARTbridgeforestablishing a
UARTcommunicationbetweenthemicrocontrollerandacomputer.ToisolatetheUSB-
UARTbridgeforaccessoftheRX,TX,RTSandCTSpinsatthedirectportaccesssection
thejumperJP7,JP8,JP9andJP10shouldberemoved.
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FYI:ThePICKICKdevelopmentboardcanbepoweredusingtheUSBprovidedin
theUSB-UARTbridgesection.

Figure.
19
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Figure.
20
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14
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PIC Kick User Manual
Embedded Designs and Solutions
USB

ThePICKICKdevelopmentboardfeaturesanon-boardUSBconnectorfordevicessuch
asPIC18f4550featuringanon-chipUSBperipheral.TheUSBbirectionallinesD+andD-
canbeconnectedwithsuchmicrocontrollersusingjumpersJP2andJP3.Anexternal
470nFcapacitorisnecessarytostabilizethevoltageoftheinternal3.3Vregulatorofthe
microcontroller.ThecapacitorcanbeconnectedbyplacingthejumperJP4asshownin
Figure.19.AnLEDisprovidedasaUSBlinkindicator.
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Figure.
1
9
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Figure.
20
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PIC Kick User Manual
15
Embedded Designs and Solutions
DirectPortAccess
ThePICKICKdevelopmentboardprovidesaccesstoPORTA,PORTB,PORTC,PORTD
andPORTEintheDirectPortAccesssection.TheusercanconnectADDOnsandother
externalcircuitstothissectionusingjumperwiresoraflatribboncable.
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Note:TheportpinsRA6andRA7arenotavailableonthedirectportaccess
sectionsinceanexternalcrystalisconnectedtothesepins.
Figure.
21
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16
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PIC Kick User Manual
Embedded Designs and Solutions
Notes
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Forsolutions,queryorfeedbackregardingthedevelopmenttool,sourcecodeorthe
usermanualfeelfreetocontactusat[e-mail]orpostthesameat
www.entesla.com/forums.
Forbusinessproposalsoranyotherqueries[e-mail]

PIC Kick User Manual
17
Embedded Designs and Solutions
Notes
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
Forsolutions,queryorfeedbackregardingthedevelopmenttool,sourcecodeorthe
usermanualfeelfreetocontactusat[e-mail]orpostthesameat
www.entesla.com/forums.
Forbusinessproposalsoranyotherqueries[e-mail]

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

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EmbeddedDesignsandSolutions
www.entesla.com








Forsolutions,queryorfeedbackregardingthedevelopmenttool,sourcecodeorthe
usermanualfeelfreetocontactusat[e-mail]orpostthesameat
www.entesla.com/forums.
Forbusinessproposalsoranyotherqueries[e-mail]