Particle P1 Manual de usuario

Functionaldescription

OVERVIEW

FEATURES

Interfaces

BLOCKDIAGRAM

POWER

FCCAPPROVEDANTENNAS

PERIPHERALSANDGPIO

RGBLED,SETUPANDRESETBUTTON

JTAGANDSWD

EXTERNALCOEXISTENCEINTERFACE

MemoryMap

STM32F205RGY6FLASHLAYOUTOVERVIEW

DCTLAYOUT

MEMORYMAP(COMMON)

MEMORYMAP(MODULARFIRMWARE-DEFAULT)

MEMORYMAP(MONOLITHICFIRMWARE-OPTIONAL)

Pinandbuttondefinition

PINMARKINGS

PINDESCRIPTION

PINOUTDIAGRAM

COMPLETEP1MODULEPINLISTING

Technicalspecification

ABSOLUTEMAXIMUMRATINGS

RECOMMENDEDOPERATINGCONDITIONS

WI-FISPECIFICATIONS

I/OCHARACTERISTICS

Mechanicalspecifications

OVERALLDIMENSIONS

P1MODULEDIMENSIONS

P1MODULERECOMMENDEDPCBLANDPATTERN

P1ReferenceDesignSchematic

SCHEMATIC-USB

SCHEMATIC-POWER

SCHEMATIC-USERI/O

SCHEMATIC-P1WI-FIMODULE

P1ReferenceDesignLayout

P1REFERENCEDESIGNTOPLAYER(GTL)

P1REFERENCEDESIGNBOTTOMLAYER(GBL)

Recommendedsolderreflowprofile

Orderinginformation

Qualificationandapprovals

Producthandling

TAPEANDREELINFO

MOISTURESENSITIVITYLEVELS

ESDPRECAUTIONS

Defaultsettings

Glossary

FCCICCEWarningsandEndProductLabelingRequirements

Revisionhistory

KnownErrata

Contact

Functionaldescription

TheP1isParticle'stinyWi-FimodulethatcontainsboththeBroadcomWi-Fichipanda

reprogrammableSTM32F205RGY632-bitARMCortex-M3microcontroller.TheP1comespreloaded

withParticlefirmwarelibraries,justlikeourdevkits,andit'sdesignedtosimplifyyourtransitionfrom

prototypetoproduction.TheP1isthePØ'sbigbrother;it'sabitbiggerandatadmoreexpensive,but

itincludessomeextraflashandanantennaandu.FLconnectoronboard.Particleprovidesfree

accesstoParticleCloudforprototyping.PaidtiersofParticleCloudstartwhenyoucreateaproduct

withmorethan25devices.

ParticleP1Wi-Fimodule

BroadcomBCM43362Wi-Fichip

802.11b/g/nWi-Fi

STM32F205RGY6120MhzARMCortexM3

1MBflash,128KBRAM

1MBexternalSPIflash(MX25L8006E)

IntegratedPCBantenna

Integratedu.FLconnectorforexternalantenna

IntegratedRFswitch

25Mixed-signalGPIOandadvancedperipherals

Opensourcedesign

Real-timeoperatingsystem(FreeRTOS)

SoftAPsetup

FCC,CEandICcertified

OVERVIEW

FEATURES

Interfaces

PowertotheP1issuppliedvia3differentinputs:VBAT_WL(pin2&3),VDDIO_3V3_WL(pin5),

VDD_3V3(pin26&27).Optionally+3.3VmaybesuppliedtoVBAT_MICRO(pin38)fordataretention

inlowpowersleepmodes.Eachoftheseinputsalsorequiresa0.1uFand10uFceramicdecoupling

capacitor,locatedascloseaspossibletothepin(seeFig1).Thevoltageshouldberegulatedbetween

3.0VDCand3.6VDC.(PleaserefertoAbsoluteMaximumRatingsformoreinfo).

Typicalaveragecurrentconsumptionis80mAwith5V@inputoftherecommendedSMPSpower

supplywithWi-Fion.Deepsleepquiescentcurrentistypically80uA(PleaserefertoRecommended

OperatingConditionsformoreinfo).WhenpoweringtheP1makesurethepowersupplycanhandle

600mAcontinuous.Ifalesserpowersupplyisprovided,peakcurrentsdrawnfromtheP1when

transmittingandreceivingwillresultinvoltagesagattheinputwhichmaycauseasystembrown

outorintermittentoperation.

Warning:WhenpoweringtheP1fromlongwires,careshouldbetakentoprotectagainstdamaging

voltagetransientsifusingthesameregulatorasisusedonthePhoton.FromtheRichtekdatasheet:

Whenaceramiccapacitorisusedattheinputandthepowerissuppliedbyawalladapterthroughlong

wires,aloadstepattheoutputcaninduceringingattheinput,VIN.Atbest,thisringingcancoupletothe

outputandbemistakenasloopinstability.Atworst,asuddeninrushofcurrentthroughthelongwirescan

potentiallycauseavoltagespikeatVINlargeenoughtodamagethepart.

Toavoidthesevoltagespikes,keepinputwiringasshortaspossible.Iflongwiresareunavoidable,it

isadvisabletoadda5.1VzenerdiodeorsimilartransientsuppressiondevicefromVINtoGND.

Anothertechniqueisaddingmorecapacitancetotheinputusinganelectrolyticcapacitor.Please

refertoAN-88byLinearforagooddiscussiononthistopic.

BLOCKDIAGRAM

POWER



Fig.1Recommendedpowerconnectionswithdecouplingcapacitors.

TheRFsectionoftheP1includesanon-boardPCBtraceantennaandau.FLconnectorwhichallows

theusertoconnectanexternalantenna.ThesetwoantennaoutputsareselectableviaauserAPI,

madepossiblebyanintegratedRFswitch.

ThedefaultselectedantennawillbethePCBantenna.

TheareasurroundingthePCBantennaonthecarrierPCBshouldbefreeofgroundplanesandsignal

tracesformaximumWi-Fiperformance.

AntennaType Manufacturer MFG.Part# Gain

Dipoleantenna LumenRadio 104-1001 2.15dBi

PCBAntenna Included - -

FCCAPPROVEDANTENNAS

TheP1modulehastonofcapabilityinasupersmallfootprint,withanalog,digitaland

communicationinterfaces.

Note:P1pinnameswillbepreservedastheyarenamedintheUSIdatasheet,howeverforthescope

ofthisdatasheetwewillalsorefertothemastheirPhotonandcodeequivalents,i.e.D7insteadof

MICRO_JTAG_TMSandA2insteadofMICRO_GPIO_13.Thiswillhelptosimplifydescriptions,while

providingaquickreferenceforcodethatcanbewrittenfortheP1suchas intvalue=

analogRead(A2);

Peripheral

Type Qty

Input(I)/

Output(O)

FT[1]/

3V3[2]

Digital 24 I/O FT/3V3

Analog(ADC) 13 I 3V3

Analog(DAC) 2 O 3V3

SPI 2 I/O 3V3

I2S 1 I/O 3V3

I2C 1 I/O FT

CAN 1 I/O 3V3[4]

USB 1 I/O 3V3

PWM 12[3] O 3V3

Notes:

[1]FT=5.0Vtolerantpins.AllpinsexceptA3andDACare5Vtolerant(whennotinanalogmode).If

usedasa5Vinputthepull-up/pull-downresistormustbedisabled.

[2]3V3=3.3Vmaxpins.

[3]PWMisavailableonD0,D1,D2,D3,A4,A5,WKP,RX,TX,P1S0,P1S1,P1S6withacaveat:PWMtimer

peripheralisduplicatedontwopins(A5/D2)and(A4/D3)for10totalindependentPWMoutputs.For

example:PWMmaybeusedonA5whileD2isusedasaGPIO,orD2asaPWMwhileA5isusedasan

analoginput.HoweverA5andD2cannotbeusedasindependentlycontrolledPWMoutputsatthe

sametime.P1S6requiresSystemFeatureWi-FiPowersaveClocktobedisabled.SeeSystemFeatures

inFirmwareReference.

[4]Technicallythesepinsare5.0Vtolerant,butsinceyouwouldn'toperatethemwitha5.0V

transceiverit'spropertoclassifythemas3.3V.

WhenusingtheP1module,itisveryimportanttorememberthatyourdevicemusthaveanRGBLED

toshowtheusertheconnectivitystatus.AlsorequiredisaSETUPandRESETbuttontoentervarious

DeviceModes.BydefaulttheRGBLEDoutputsareconfiguredforaCommonAnodetypeofLED.

ThesecomponentsshouldbewiredaccordingtotheP1ReferenceDesign-UserI/O.RGBpinsmay

beaccessedincodeas:RGBR,RGBGandRGBB.

PERIPHERALSANDGPIO

RGBLED,SETUPANDRESETBUTTON

PinD3throughD7areJTAGinterfacepins.ThesecanbeusedtoreprogramyourP1bootloaderor

userfirmwareimagewithstandardJTAGtoolssuchastheST-Linkv2,J-Link,R-Link,OLIMEXARM-

USB-TINI-H,andalsotheFTDI-basedParticleJTAGProgrammer.Ifyouareshortonavailablepins,

youmayalsouseSWDmodewhichrequireslessconnections.

Photon

Pin JTAG SWD

STM32F205RGY6

P1Pin

# P1PinName

Default

Internal[1]

D7 JTAG_TMS SWD/SWDIO PA13 54 MICRO_JTAG_TMS ~40kpull-up

D6 JTAG_TCK CLK/SWCLK PA14 55 MICRO_JTAG_TCK ~40kpull-down

D5 JTAG_TDI PA15 53 MICRO_JTAG_TDI ~40kpull-up

D4 JTAG_TDO PB3 52 MICRO_JTAG_TDO Floating

D3 JTAG_TRST PB4 51 MICRO_JTAG_TRSTN ~40kpull-up

3V3 Power Power

GND Ground Ground

RST Reset Reset

Notes:[1]DefaultstateafterresetforashortperiodoftimebeforethesepinsarerestoredtoGPIO(if

JTAGdebuggingisnotrequired,i.e. USE_SWD_JTAG=y isnotspecifiedonthecommandline.)

Astandard20-pin0.1"shroudedmaleJTAGinterfaceconnectorshouldbewiredasfollows:

(clickto

stopsquinting)

JTAGANDSWD

TheP1supportscoexistencewithBluetoothandotherexternalradiosviathreepinsavailableonthe

P1module.

Whentworadiosoccupyingthesamefrequencybandareusedinthesamesystem,suchasWi-Fi

andBluetooth,acoexistenceinterfacecanbeusedtocoordinatetransmitactivity,toensureoptimal

performancebyarbitratingconflictsbetweenthetworadios.

P1PinName

P1Pin

# I/O Description

BTCX_RF_ACTIVE 57 I Coexistencesignal:Bluetoothisactive

BTCX_STATUS 56 I Coexistencesignal:BluetoothprioritystatusandTX/RXdirection

BTCX_TXCONF 58 O OutputgivingBluetoothpermissiontoTX

WhenthesepinsareprogrammedtobeusedasaBluetoothcoexistenceinterface,they'resetas

highimpedanceonpowerupandreset.

EXTERNALCOEXISTENCEINTERFACE

MemoryMap

Bootloader(16KB)

DCT1(16KB),storesWi-Ficredentials,keys,mfginfo,systemflags,etc..

DCT2(16KB),swapareaforDCT1

EEPROMemulationbank1(16KB)

EEPROMemulationbank2(64KB)

Systemfirmware(512KB)[256KBWi-Fi/comms+256KBhal/platform/services]

Factorybackup,OTAbackupanduserapplication(384KB)[3x128KB]

TheDCTareaofflashmemoryhasbeenmappedtoaseparateDFUmediadevicesothatwecan

incrementallyupdatetheapplicationdata.Thisallowsoneitem(say,serverpublickey)tobe

updatedwithouterasingtheotheritems.

DCTlayoutin

release/stable

foundhereinfirmware.

Region Offset Size

systemflags 0 32

version 32 2

deviceprivatekey 34 1216

devicepublickey 1250 384

ipconfig 1634 120

featureflags 1754 4

countrycode 1758 4

claimcode 1762 63

claimed 1825 1

ssidprefix 1826 26

devicecode 1852 6

versionstring 1858 32

dnsresolve 1890 128

reserved1 2018 64

serverpublickey 2082 768

padding 2850 2

flashmodules 2852 100

productstore 2952 24

antennaselection 2976 1

cloudtransport 2977 1

altdevicepublickey 2978 128

altdeviceprivatekey 3106 192

altserverpublickey 3298 192

altserveraddress 3490 128

deviceid 3618 12

radioflags 3630 1

modebuttonmirror 3631 32

STM32F205RGY6FLASHLAYOUTOVERVIEW

DCTLAYOUT

ledmirror 3663 96

ledtheme 3759 64

reserved2 3823 435

Note:Writing0xFFtooffset34(DEFAULT)or3106(ALTERNATE)willcausethedevicetore-generatea

newprivatekeyonthenextboot.AlternatekeysarecurrentlyunsupportedontheP1butareusedon

theElectronasUDP/ECCkeys.Youshouldnotneedtousethisfeatureunlessyourkeysare

corrupted.

//RegenerateDefaultKeys

echo-e"\xFF">fillbyte&&dfu-util-d2b04:d00a-a1-s34-Dfillbyte

//RegenerateAlternateKeys

echo-e"\xFF">fillbyte&&dfu-util-d2b04:d00a-a1-s3106-D

fillbyte

Region StartAddress EndAddress Size

Bootloader 0x8000000 0x8004000 16KB

DCT1 0x8004000 0x8008000 16KB

DCT2 0x8008000 0x800C000 16KB

EEPROM1 0x800C000 0x8010000 16KB

EEPROM2 0x8010000 0x8020000 64KB

Region StartAddress EndAddress Size

SystemPart1 0x8020000 0x8060000 256KB

SystemPart2 0x8060000 0x80A0000 256KB

UserPart 0x80A0000 0x80C0000 128KB

OTABackup 0x80C0000 0x80E0000 128KB

FactoryBackup 0x80E0000 0x8100000 128KB

Region StartAddress EndAddress Size

Firmware 0x8020000 0x8080000 384KB

FactoryReset 0x8080000 0x80E0000 384KB

Unused(factoryresetmodular) 0x80E0000 0x8100000 128KB

MEMORYMAP(COMMON)

MEMORYMAP(MODULARFIRMWARE-DEFAULT)

MEMORYMAP(MONOLITHICFIRMWARE-OPTIONAL)

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