Ibhodi le-Raspberry Pi Pico 2 W Microcontroller

Imininingwane:

• Igama lomkhiqizo: I-Raspberry Pico 2 W
• Ukunikezwa kwamandla: 5V DC
• Isilinganiso esincane samanje: 1A

Imiyalo yokusetshenziswa komkhiqizo

Ulwazi Lokuphepha:
I-Raspberry Pi Pico 2 W kufanele ihambisane nemithethonqubo efanele kanye namazinga asebenza ezweni elihloselwe ukusetshenziswa. Ukunikezwa kwamandla okunikezwayo kufanele kube yi-5V DC enesilinganiso esincane samanje esingu-1A.

Izitifiketi Zokuthobelana:
Kuzo zonke izitifiketi zokuthobela imithetho nezinombolo, sicela uvakashele  www.raspberrypi.com/compliance.

Ulwazi Lokuhlanganisa lwe-OEM:
Umkhiqizi womkhiqizo we-OEM/Host kufanele aqinisekise ukuhambisana okuqhubekayo nezimfuneko zesitifiketi se-FCC kanye ne-ISED Canada uma imojuli isihlanganiswe kumkhiqizo Wosokhaya. Bheka ku-FCC KDB 996369 D04 ukuze uthole ulwazi olwengeziwe.

Ukuthobela Umthetho:
Ngemikhiqizo etholakala emakethe yase-USA/Canada, amashaneli 1 kuya ku-11 kuphela atholakala ku-2.4GHz WLAN. Idivayisi kanye nezimpondo zayo akumele kuhlanganiswe noma kusetshenziswe ngokuhambisana nanoma yiluphi olunye uthi noma i-transmitter ngaphandle kokuhambisana nezinqubo zama-multi-transmitter ze-FCC.

Izingxenye ze-FCC Rule:
Imojula ingaphansi kwezingxenye zemithetho ye-FCC elandelayo: 15.207, 15.209, 15.247, 15.401, kanye 15.407.

Raspberry Pi Pico 2 W Datasheet
Ibhodi le-microcontroller elisekelwe ku-RP2350 elingenantambo.

I-Colophon

• © 2024 Raspberry Pi Ltd
• Lo mbhalo unikezwe ilayisense ngaphansi kwe-Creative Commons Attribution-NoDerivatives 4.0 International (CC BY-ND).
• idethi yokwakha: 2024-11-26
• inguqulo yokwakha: d912d5f-clean

Isaziso esisemthethweni sokuzihlangula

• IDATHA YOBUCHWEPHESHE NEYETHEMBEKA YEMIKHIQIZO YE-RASPBERRY PI (KUHLANGANISA IMINININGWANE) NJENGOBA ILUNGISWA NGESIKHATHI NGESIKHATHI (“IZINSIZA”) Ihlinzekwa YI-RASPBERRY PI LTD (“RPL”) “NJENGOBA IKHO” KANYE NOMA YILUPHI OKUSHIWO NOMA OKUSHIYELWE, AKUKHO IZIMALI EZIBALULEKILE, KUYA, IZIQINISEKISO EZISHIWO ZOKUTHENGISA NOKULUNGA KWENHLOSO ETHILE ZIYEHOXIWE. Ngezinga eliphakeme elivunyelwe ngumthetho osebenzayo ngaphandle komcimbi ozobe unesibopho sokuthola noma yisiphi isimo esiqondile, esingaqondile, esikhethekile, noma asilinganiselwe, ukutholakala kwempahla esetshenzisiwe, ukulahlekelwa kokusetshenziswa, idatha , NOMA IZIMALI; NOMA UKUPHAZAMISEKA KWEBHIZINISI) NOMA KUDANWE KANYE NAKUNOMA YIMUPHI UMBONO WESIBOPHO, KUNGAKHATHALISEKILE, NGESIBOPHO, ESIBOPHEZELO ESIQINILE, NOMA UKUHLUPHEKA (KUHLANGANISA NEBUBETHO NOMA OKUNYE) OKUVELA NGANOMA YIYIPHI INDLELA EKUPHUMELENI UKUSETSHENZISWA KWESIKHUNGO, NOMA ESIKHATHINI. LOMONAMANDLA ONJE.
• I-RPL igodle ilungelo lokwenza noma yiziphi izithuthukisi, intuthuko, izilungiso nanoma yiziphi ezinye izinguquko ku-RESOURCES nanoma yimiphi imikhiqizo echazwe kuyo nganoma yisiphi isikhathi ngaphandle kwesaziso esengeziwe.
• I-RESOURCES ihloselwe abasebenzisi abanamakhono abanamazinga afanelekile olwazi lokuklama. Abasebenzisi banomthwalo wemfanelo kuphela ekukhetheni kwabo nasekusebenziseni IZINTO EZINGAKUMBI kanye nanoma yikuphi ukusetshenziswa kwemikhiqizo echazwe kuyo. Umsebenzisi uyavuma ukunxephezela futhi abambe i-RPL ingenabungozi kuzo zonke izikweletu, izindleko, umonakalo noma okunye ukulahlekelwa okuvela ngenxa yokusebenzisa kwabo IZINSIZA.
• I-RPL inikeza abasebenzisi imvume yokusebenzisa i-RESOURCES kuphela ngokuhlangana nemikhiqizo ye-Raspberry Pi. Konke okunye ukusetshenziswa kwe-RESOURCES akuvunyelwe. Ayikho ilayisensi enikezwa noma iyiphi enye i-RPL noma elinye ilungelo lempahla yengqondo lesithathu.
• IMISEBENZI YENGOZI EPHEZULU. Imikhiqizo ye-Raspberry Pi ayiklanyelwe, ikhiqizwa noma ihloselwe ukusetshenziswa ezindaweni eziyingozi ezidinga ukwehluleka ukusebenza okuphephile, njengalapho kusebenza khona izakhiwo zenuzi, ukuzulazula kwezindiza noma amasistimu okuxhumana, ukulawulwa kwethrafikhi yomoya, izinhlelo zezikhali noma izinhlelo zokusebenza ezibalulekile zokuphepha (okuhlanganisa izinhlelo ezisekela ukuphila nezinye izisetshenziswa zezokwelapha), lapho ukwehluleka kwemikhiqizo kungaholela ekufeni, ukulimala komuntu siqu noma ukulimala okukhulu ngokomzimba noma kwemvelo ("). I-RPL ilahla ngokuqondile noma yisiphi isiqinisekiso sokufaneleka esicacile noma esisikiselwayo sokufaneleka Kwemisebenzi Yengozi Ephezulu futhi ayamukeli icala lokusetshenziswa noma ukufakwa kwemikhiqizo ye-Raspberry Pi Emisebenzini Enobungozi Ephezulu.
• Imikhiqizo ye-Raspberry Pi inikezwa ngaphansi kweMigomo Ejwayelekile ye-RPL. Ukunikezwa kwe-RPL KWEZINSIZA akukhulisi noma kuguqula Imigomo Ejwayelekile ye-RPL kuhlanganise kodwa kungagcini nje kuphela kuziqhathulula neziqinisekiso ezivezwe kuyo.

Isahluko 1. Mayelana ne-Pico 2 W
I-Raspberry Pi Pico 2 W iyibhodi ye-microcontroller esekelwe ku-chip ye-Raspberry Pi RP2350 microcontroller.

I-Raspberry Pi Pico 2 W yakhelwe ukuthi ibe inkundla yokuthuthukisa ebiza kancane kodwa evumelana nezimo ye-RP2350, enokuxhumana okungenantambo okungu-2.4GHz kanye nezici ezilandelayo ezibalulekile:

• I-RP2350 microcontroller eno-4 MB wememori ye-flash
• I-on-board single-band 2.4GHz izixhumanisi ezingenantambo (802.11n, Bluetooth 5.2)
  • Usekelo lwezindima ze-Bluetooth LE Central kanye ne-Peripheral
  • Usekelo lwe-Bluetooth Classic
• Imbobo ye-Micro USB B yamandla nedatha (kanye nokuhlela kabusha isibani)
• Isitayela esingu-40-pin 21mm×51mm 'DIP' esingu-1mm i-PCB ewugqinsi enezikhonkwane ezingu-0.1″ zembobo futhi ezinama-castellations asemaphethelweni
  • Iveza 26 multi-function 3.3V injongo evamile I/O (GPIO)
  • I-23 GPIO idijithali kuphela, kanti ezintathu nazo ziyakwazi i-ADC
  • Ingafakwa phezulu njengemojuli
• 3-pin Imbobo ye-Arm serial wire debug (SWD).
• Isakhiwo esilula kodwa esivumelana nezimo kakhulu sokuphakelwa kwamandla
  • Izinketho ezihlukahlukene zokunika amandla kalula iyunithi kusuka ku-Micro USB, izinsiza zangaphandle noma amabhethri
• Ikhwalithi ephezulu, izindleko eziphansi, ukutholakala okuphezulu
• I-SDK ephelele, isoftware examples kanye nemibhalo

Ukuze uthole imininingwane egcwele ye-RP2350 microcontroller sicela ubheke incwadi ye-RP2350 Datasheet. Izici ezibalulekile zifaka:

• I-Dual Cortex-M33 noma i-RISC-V Hazard3 cores ivalwe ukufika ku-150MHz
  • Ama-on-chip PLL amabili avumela ukuguquguquka kwengqikithi namafrikhwensi okujikeleza
• 520 kB ukusebenza okuphezulu kwe-SRAM yamabhange amaningi
• I-Quad-SPI flash yangaphandle ene-execute In Place (XIP) kanye ne-16kB on-chip cache
• Ukusebenza okuphezulu kwendwangu yebhasi ye-crossbar
• I-USB1.1 engaphakathi (idivayisi noma umsingathi)
• 30 inhloso ejwayelekile yemisebenzi eminingi ye-I/O (emine ingasetshenziselwa i-ADC)
  • 1.8-3.3VI/O ivolumutage
• I-12-bit 500ksps analogue to digital converter (ADC)
• Ama-peripherals ahlukahlukene edijithali
  • I-2 × UART, 2 × I2C, 2 × SPI, 24 × iziteshi ze-PWM, 1× iperipheral ye-HSTX
  • 1 × isibali sikhathi esinama-alamu angu-4, 1 × AON Timer
• 3 × amabhlogo we-I/O (PIO) ahlelekayo, imishini yezwe eyi-12 isiyonke
  • I-I/O yesivinini esikhulu esebenziseka kalula, ehlelekayo nomsebenzisi
  • Ingakwazi ukulingisa ukuxhumana okufana nekhadi le-SD ne-VGA

QAPHELA

• I-Raspberry Pi Pico 2 WI/O voltagi-e igxilwe ku-3.3V
• I-Raspberry Pi Pico 2 W inikeza isifunda sangaphandle esincane kodwa esivumelana nezimo ukuze sisekele i-RP2350 chip: imemori ye-flash (Winbond W25Q16JV), ikristalu (Abracon ABM8-272-T3), izinsiza zamandla kanye nokuqaqa, nesixhumi se-USB. Iningi lezikhonkwane ze-RP2350 microcontroller zilethwa kumsebenzisi we-I/O emaphethelweni ebhodi kwesokunxele nakwesokudla. Ama-RP2350 I/O amane asetshenziselwa imisebenzi yangaphakathi: ukushayela i-LED, ukulawulwa kwamandla kagesi wemodi yokushintsha ebhodini (SMPS), kanye nokuzwa ivolumu yesistimu.tages.
• I-Pico 2 W inokuxhumana okungenantambo oku-on-board 2.4GHz isebenzisa i-Infineon CYW43439. I-antenna wuthi olungaphakathi olunikezwe ilayisense yakwa-Abracon (phambilini eyayaziwa ngokuthi yi-ProAnt). I-interface engenazintambo ixhunywe nge-SPI ku-RP2350.
• I-Pico 2 W yakhelwe ukuthi isebenzise amaheda ephinikhodi angu-0.1-intshi athengiswayo (iyintshi eyodwa engu-0.1-intshi ebanzi kunephakheji ye-DIP yamaphini angu-40), noma abekwe 'njengemojula' ekhwezeka phezulu, njengoba izikhonkwane ze-I/O zomsebenzisi nazo zenziwe ngezinkanyezi.
• Kunamaphedi e-SMT ngaphansi kwesixhumi se-USB nenkinobho ye-BOOTSEL, evumela ukuthi lawa masiginali afinyelelwe uma esetshenziswa njengemojula ye-SMT ethengiswe kabusha.

• I-Raspberry Pi Pico 2 W isebenzisa i-SMPS e-on-board buck-boost ekwazi ukukhiqiza i-3.3V edingekayo (ukuze inike amandla i-RP2350 kanye nokujikeleza kwangaphandle) kusuka kububanzi obubanzi bevolthi yokufaka.tages (~1.8 kuya ku-5.5V). Lokhu kuvumela ukuguquguquka okubalulekile ekunikezeni amandla iyunithi kusuka emithonjeni ehlukahlukene, njengeseli elilodwa le-lithium-ion, noma amaseli amathathu e-AA ochungechungeni. Amashaja ebhethri angahlanganiswa kalula ne-Pico 2 W powerchain.
• Ukuhlela kabusha i-Pico 2 W flash kungenziwa kusetshenziswa i-USB (vele uhudule bese udedela a file ku-Pico 2 W, evela njengedivayisi yokugcina izinto eziningi), noma imbobo ye-serial serial debug (SWD) ingasetha kabusha isistimu futhi ilayishe futhi isebenzise ikhodi ngaphandle kokucindezela inkinobho. Imbobo ye-SWD ingaphinda isetshenziselwe ukulungisa iphutha ngokuhlanganyela ikhodi esebenza ku-RP2350.

Ukuqalisa nge-Pico 2 W

• Incwadi ethi Ukuqalisa nge-Raspberry Pi Pico-series incwadi ihamba phakathi kokulayisha izinhlelo ebhodini, futhi ibonisa indlela yokufaka i-C/C++ SDK nokwakha i-ex.ample C izinhlelo. Bona ibhuku le-Raspberry Pi Pico-series Python SDK ukuze uqalise nge-MicroPython, okuyindlela eshesha kakhulu yokuthola ikhodi esebenza ku-Pico 2 W.

Idizayini ye-Raspberry Pi Pico 2 W files
Idizayini yomthombo files, okuhlanganisa isakhiwo se-schematic ne-PCB, zenziwa zitholakale ngokuvulekile ngaphandle kothi. I-antenna ye-Niche™ ubuchwepheshe be-antenna ye-Abracon/Proant. Sicela uthinte niche@abracon.com ukuze uthole ulwazi mayelana nokulayisensa.

• Isakhiwo I-CAD files, kuhlanganise nesakhiwo se-PCB, ingatholakala lapha. Qaphela ukuthi i-Pico 2 W yaklanywa ku-Cadence Allegro PCB Editor, futhi ukuvula kwamanye amaphakheji e-PCB CAD kuzodinga umbhalo wokungenisa noma i-plugin.
• ISINYATHELO 3D ISINYATHELO 3D imodeli ye-Raspberry Pi Pico 2 W, yokuboniswa kwe-3D kanye nokuhlola ukulingana kwemiklamo ehlanganisa i-Pico 2 W njengemojula, ingatholakala lapha.
• Kuyamangaza Ingxenye egqamile esetshenziswa eg, izakhiwo ze-breadboard ingatholakala lapha.
• Imvume yokusebenzisa, ukukopisha, ukulungisa, kanye/noma ukusabalalisa lo mklamo nganoma iyiphi inhloso ngemali noma ngaphandle kwenkokhelo iyanikezwa.
• UMQINA UNIKEZELWE “NJENGOBA AYINJALO” FUTHI UMBHALI UZIKHALA ZONKE IZIQINISEKISO MAYELANA NALO MGAQO KUHLANGANISA NAZO ZONKE IZIQINISEKISO EZITHENGISAYO NOKULUNGA. AKUKHO MCIMBI UMBHALI AKAYOBA NESIBOPHO NGANOMA YIMUPHI UMONAKALO OKHETHEKILE, OKUQONDILE, OKUNGQO, NOMA OKULANDELAYO NOMA YIKUPHI UKULIMAMA OKUVELA OKUPHUMELA UKUSETYENZISWA, IDATHA NOMA IZIMALI, KUNGAKHATHALISEKILE NGENKONDLEKO, UKUNGABI NAMTHETHO UKUXHUMANA NOKUSETSHENZISWA NOMA UKWENZIWA KWALO MQABO.C

Isahluko 2. Ukucaciswa kwemishini
I-Pico 2 W iyi-PCB enohlangothi olulodwa engu-51mm × 21mm × 1mm enembobo encane ye-USB elenga ngaphezulu konqenqema olungaphezulu, kanye nezikhonkwane ezi-castelated/ezimbobo ezimbili ezizungeze imiphetho emibili emide. I-onboard wireless antenna itholakala onqenqemeni olungezansi. Ukuze ugweme ukukhipha uthi, akukho mpahla okufanele ingene kulesi sikhala. I-Pico 2 W iklanyelwe ukusebenziseka njengemojula yokukhweza phezulu kanye nokwethula ifomethi yephakheji esemgqeni okabili (i-DIP), enamaphini abasebenzisi abangu-40 abayinhloko kugridi ye-pitch engu-2.54mm (0.1″) enezimbobo ezingu-1mm, ehambisana ne-veroboard ne-breadboard. I-Pico 2 W futhi inezimbobo ezine ezigxunyekiwe ezingu-2.1mm (± 0.05mm) ezine ukuze ihlinzekele ukulungisa ngomshini (bona uMdwebo 3).

Iphinikhodi ye-Pico 2 W
Iphinikhodi ye-Pico 2 W yakhelwe ukuthi ikhiphe ngokuqondile ingxenye enkulu ye-RP2350 GPIO nomsebenzi wokujikeleza wangaphakathi ngangokunokwenzeka, kuyilapho ihlinzeka ngenani elifanele lamaphini aphansi ukuze kuncishiswe ukuphazamiseka kwe-electro-magnetic (EMI) kanye nesignali ye-crosstalk. I-RP2350 yakhelwe phezu kwenqubo yesimanje ye-silicon engu-40nm, ngakho-ke amanani ayo onqenqema we-I/O ashesha kakhulu.

QAPHELA

• Izinombolo zephinikhodi zikhonjisiwe kuMfanekiso 4. Ukuze uthole ukunikezwa kwamaphini bheka uMdwebo 2.

Izikhonkwane ezimbalwa ze-RP2350 GPIO zisetshenziselwa imisebenzi yangaphakathi yebhodi:

• I-GPIO29 Imodi ye-OP/IP engenantambo ye-SPI CLK/ADC (ADC3) yokukala i-VSYS/3
• I-GPIO25 I-OP wireless SPI CS – uma iphezulu iphinda inike amandla iphinikhodi ye-GPIO29 ADC ukuthi ifunde i-VSYS
• I-GPIO24 Idatha ye-OP/IP engenantambo ye-SPI/IRQ
• I-GPIO23 Amandla angenantambo we-OP esiginali
• WL_GPIO2 Inzwa ye-IP VBUS - iphezulu uma i-VBUS ikhona, enye iphansi
• WL_GPIO1 I-OP ilawula iphinikhodi yokonga amandla engaphakathi kwe-SMPS (Isigaba 3.4)
• WL_GPIO0 I-OP ixhumeke kumsebenzisi we-LED

Ngaphandle kwe-GPIO nezikhonkwane zomhlabathi, kukhona ezinye izikhonkwane eziyisikhombisa kusixhumi esibonakalayo samaphini angama-40:

• IPIN40 I-VBUS
• IPIN39 I-VSYS
• IPIN37 3V3_EN
• IPIN36 3V3
• IPIN35 ADC_VREF
• IPIN33 I-AGND
• IPIN30 GIJIMA

I-VBUS iyivolumu yokufaka ye-micro-USBtage, ixhunywe kuphinikhodi yembobo ye-Micro-USB 1. Lena ngegama elithi 5V (noma i-0V uma i-USB ingaxhumekile noma inganikiwe amandla).

• I-VSYS ingumthamo wokufaka wesistimu oyinhlokotage, engahluka kububanzi obuvunyelwe 1.8V ukuya ku-5.5V, futhi isetshenziswa i-SMPS esebhodini ukuze ikhiqize i-3.3V ye-RP2350 kanye ne-GPIO yayo.
• I-3V3_EN ixhuma kwiphinikhodi ye-SMPS esebhodini, futhi idonselwa phezulu (ku-VSYS) nge-resistor engu-100kΩ. Ukuze ukhubaze i-3.3V (ephinde isuse amandla ku-RP2350), mfushane le phinikhodi.
• I-3V3 iwumthombo oyinhloko we-3.3V ku-RP2350 kanye ne-I/O yayo, ekhiqizwe i-SMPS esebhodini. Le phinikhodi ingasetshenziswa ukunika amandla ukujikeleza kwangaphandle (umthamo omkhulu wamanje uzoncika kumthwalo we-RP2350 kanye ne-VSYS vol.tage; kunconywa ukuthi ugcine umthwalo kule phinikhodi ungaphansi kuka-300mA).
• I-ADC_VREF iwumthombo wamandla we-ADC (kanye nereferensi) voltage, futhi ikhiqizwa ku-Pico 2 W ngokuhlunga ukunikezwa kwe-3.3V. Le phinikhodi ingasetshenziswa nereferensi yangaphandle uma kudingeka ukusebenza okungcono kwe-ADC.
• I-AGND iyinkomba eyisisekelo ye-GPIO26-29. Kunendiza yaphansi ye-analogue ehlukile egijima ngaphansi kwalezi zimpawu futhi inqamule kule phini. Uma i-ADC ingasetshenziswa noma ukusebenza kwe-ADC kungabalulekile, le phinikhodi ingaxhunywa endaweni yedijithali.
• I-RUN iphinikhodi yokunika amandla i-RP2350, futhi inesivimbeli sokudonsa sangaphakathi (ku-chip) siye ku-3.3V esingaba ngu-~50kΩ. Ukuze usethe kabusha i-RP2350, mfushane le phinikhodi iphansi.
• Okokugcina, kukhona namaphoyinti okuhlola ayisithupha (TP1-TP6), angafinyelelwa uma kudingeka, ngokwesiboneloample uma usebenzisa njengemojula ye-surface-mount. Lezi izi:
  • I-TP1 Ground (umhlabathi osondelene kakhulu wamasignali e-USB ahlukile)
  • I-TP2 USB DM
  • I-TP3 USB DP
  • Iphinikhodi ye-TP4 WL_GPIO1/SMPS PS (ungasebenzisi)
  • I-TP5 WL_GPIO0/LED (akunconywa ukuthi isetshenziswe)
  • I-TP6 BOOTSEL
• I-TP1, TP2 ne-TP3 ingasetshenziswa ukufinyelela amasignali e-USB esikhundleni sokusebenzisa imbobo ye-micro-USB. I-TP6 ingasetshenziselwa ukushayela isistimu kumodi yokuhlela ye-USB yesitoreji esiningi (ngokuyifinyeza ibe ncane ekukhuphuleni amandla). Qaphela ukuthi i-TP4 ayihloselwe ukusetshenziswa ngaphandle, futhi i-TP5 ayinconywa ngempela ukuthi isetshenziswe njengoba izoshwibeka kuphela isuka ku-0V iye ku-LED phambili vol.tage (ngakho-ke ingasetshenziswa kuphela njengokukhiphayo ngokunakekelwa okukhethekile).

Izigxivizo zezinyawo ezibekwe phezulu
Umkhondo olandelayo (Umfanekiso 5) uyanconywa kumasistimu azoba amayunithi e-Pico 2 W aphinde athengiselwe amanzi njengamamojula.

• Isigxivizo sibonisa izindawo zephoyinti lokuhlola nosayizi bephedi kanye nezixhumi ezi-4 zegobolondo zaphansi zegobolondo le-USB (A,B,C,D). Isixhumi se-USB ku-Pico 2 W siyingxenye yembobo, esinikeza amandla okusebenza. Izikhonkwane zesokhethi ye-USB aziphumi yonke indlela ebhodini, nokho i-solder iyahlangana kulawa maphedi ngesikhathi sokwakhiwa futhi ingamisa imojuli ihlezi isicaba ngokuphelele. Ngakho-ke sihlinzeka ngamaphedi esigxivizweni semojuli ye-SMT ukuze sivumele le solder ukuthi igeleze futhi ngendlela elawulwayo lapho i-Pico 2 W iphinda igeleza futhi.
• Ngamaphuzu okuhlola angasetshenziswanga, kwamukelekile ukuvala noma iyiphi ithusi ngaphansi kwalezi (ngemvume efanelekile) ebhodini lomthwali.
• Ngezilingo namakhasimende, sinqume ukuthi i-stencil yokunamathisela kufanele ibe nkulu kunomkhondo. Ukunamathisela ngokweqile amaphedi kuqinisekisa imiphumela engcono kakhulu uma u-soldering. I-stencil yokunamathisela elandelayo (Umfanekiso 6) ikhombisa ubukhulu bendawo yokunamathisela ye-solder ku-Pico 2 W. Sincoma izindawo zokunamathisela ngo-163% ezinkulu kunophawu lonyawo.

Indawo yokugcina
Kukhona ukusikwa kothi (14mm × 9mm). Uma kukhona okubekwe eduze nothi (kunoma yibuphi ubukhulu) ukusebenza kahle kwe-antenna kuyehla. I-Raspberry Pi Pico W kufanele ibekwe onqenqemeni lwebhodi futhi ingavalwa ngensimbi ukugwema ukudala ikheji ye-Faraday. Ukwengeza umhlabathi ezinhlangothini ze-antenna kuthuthukisa ukusebenza kancane.

Izimo zokusebenza ezinconyiwe
Izimo zokusebenza ze-Pico 2 W ngokuyinhloko ziwumsebenzi wezimo zokusebenza ezicaciswe izingxenye zayo.

• I-Operating Temp Max 70°C (okuhlanganisa ukuzifudumeza)
• Amazinga Okushisa Okusebenzayo -20°C
• I-VBUS 5V ± 10%.
• I-VSYS Min 1.8V
• I-VSYS Max 5.5V
• Qaphela ukuthi i-VBUS kanye ne-VSYS yamanje izoncika esimweni sokusebenzisa, ezinye examplezi zinikezwa esigabeni esilandelayo.
• Izinga lokushisa eliphezulu elinconywayo le-ambient yokusebenza ngu-70°C.

Isahluko 3. Ulwazi lwezicelo

Ukuhlela i-flash

• I-flash ye-QSPI esebhodini engu-2MB ingahlelwa (kabusha) kusetshenziswa imbobo yokususa iphutha yentambo ye-serial noma ngemodi yedivayisi yesitoreji esikhulu se-USB.
• Indlela elula yokuhlela kabusha i-flash ye-Pico 2 W ukusebenzisa imodi ye-USB. Ukuze wenze lokhu, yehlisa ibhodi, bese ubamba inkinobho ethi BOOTSEL phansi ngesikhathi sokuqinisa ibhodi (isb. bamba i-BOOTSEL phansi ngenkathi uxhuma i-USB). I
• I-Pico 2 W izobe isivela njengedivayisi ye-USB yesitoreji esiningi. Ukuhudula okukhethekile '.uf2' file kudiski uzobhala lokhu file ku-flash bese uqala kabusha i-Pico 2 W.
• Ikhodi yokuqalisa ye-USB igcinwe ku-ROM ku-RP2350, ngakho ayikwazi ukubhalwa phezu kwephutha.
• Ukuze uqalise ukusebenzisa imbobo ye-SWD bona ingxenye ethi Ukulungisa iphutha nge-SWD kokuthi Ukuqalisa nge-Raspberry Pi Pico-series book.

Inhloso evamile I/O

• I-Pico 2 W's GPIO inikwa amandla kusukela ku-onboard 3.3V wesitimela, futhi imiswe ku-3.3V.
• I-Pico 2 W iveza amaphinikhodi angu-26 kwangu-30 okungenzeka ukuthi angu-RP2350 GPIO ngokuwahambisa aqonde kumaphini kanhlokweni ka-Pico 2 W. I-GPIO0 kuya ku-GPIO22 yidijithali kuphela, futhi i-GPIO 26-28 ingasetshenziswa njenge-digital GPIO noma okokufaka kwe-ADC (isofthiwe ekhethekayo).

QAPHELA

• I-GPIO 26-29 iyakwazi i-ADC futhi ine-diode yangaphakathi ehlanekezela kumzila wesitimela we-VDDIO (3.3V), ngakho-ke ivolthi yokufakatage akumele idlule i-VDDIO kanye ne-300mV. Uma i-RP2350 ingenawo amandla, sebenzisa i-voltage kulawa maphini we-GPIO 'izovuza' nge-diode angene ujantshi we-VDDIO. Izikhonkwane ze-GPIO 0-25 (kanye nezikhonkwane zokususa iphutha) azinawo lo mkhawulo ngakho-ke ivolumutagi-e ingasetshenziswa ngokuphephile kulawa maphini lapho i-RP2350 inganikwa amandla afinyelela ku-3.3V.

Ukusebenzisa i-ADC
I-RP2350 ADC ayinayo inkomba eku-chip; isebenzisa amandla ayo njengereferensi. Ku-Pico 2 W iphinikhodi ye-ADC_AVDD (ukunikezwa kwe-ADC) ikhiqizwa kusukela ku-SMPS 3.3V kusetshenziswa isihlungi se-RC (201Ω ku-2.2μF).

1. Lesi sixazululo sincike ekunembeni kokuphumayo kwe-3.3V SMPS
2. Omunye umsindo we-PSU ngeke uhlungwe
3. I-ADC idonsa okwamanje (cishe i-150μA uma i-diode yenzwa yokushisa ivaliwe, engahluka phakathi kwama-chips); kuzoba ne-offset engokwemvelo engaba ngu-150μA*200 = ~30mV. Kunomehluko omncane ekudwebeni kwamanje uma i-ADC ingu-sampling (cishe +20μA), ukuze leyo offset nayo ihluke ngo-sampling kanye nezinga lokushisa lokusebenza.

Ukushintsha ukumelana phakathi kwephinikhodi ye-ADC_VREF ne-3.3V kunganciphisa i-offset ngezindleko zomsindo owengeziwe, okuwusizo uma ikesi lokusebenzisa lingakwazi ukusekela ukulinganiswa kwamasekhondi amaningi.ampLes.

• Ukushayela iphinikhodi yemodi ye-SMPS (WL_GPIO1) kuphoqelela ukunikezwa kwamandla kumodi ye-PWM. Lokhu kunganciphisa kakhulu ukugeleza kwemvelo kwe-SMPS ekulayisheni okulula, futhi ngakho-ke kunciphisa i-ripple ekunikezeni kwe-ADC. Lokhu kunciphisa ukusebenza kahle kwamandla kwe-Pico 2 W ekulayisheni okulula, ngakho-ke ekupheleni kwemodi ye-ADC yokuguqulwa kwe-PFM ingaphinda inikwe amandla ngokushayela i-WL_GPIO1 phansi futhi. Bheka Isigaba 3.4.
• I-ADC offset ingancishiswa ngokubopha isiteshi sesibili se-ADC phansi, futhi kusetshenziswa lesi silinganiso esinguziro njengokulinganisa kokusuka.
• Ngokusebenza okuthuthukisiwe kwe-ADC, ireferensi ye-shunt engu-3.0V yangaphandle, efana ne-LM4040, ingaxhunywa ukusuka kuphinikhodi ye-ADC_VREF ukuya phansi. Qaphela ukuthi uma ukwenza lokhu uhla lwe-ADC lukhawulelwe kumasiginali angu-0V – 3.0V (kunokuba 0V – 3.3V), futhi ireferensi ye-shunt izodonsa isikhathi samanje esiqhubekayo ngesinqamuleli sesihlungi esingu-200Ω (3.3V – 3.0V)/200 = ~1.5mA.
• Qaphela ukuthi i-resistor engu-1Ω ku-Pico 2 W (R9) yakhelwe ukusiza ngezithenjwa ze-shunt ezingase zingazinzi uma zixhunywe ngokuqondile ku-2.2μF. Iphinde iqinisekise ukuthi kukhona ukuhlunga ngisho nasesimweni lapho i-3.3V ne-ADC_VREF ifushaniswa ndawonye (okuyinto abasebenzisi abamelana nomsindo nabafuna ukwehlisa i-offset engokwemvelo abangafisa ukuyenza).
• I-R7 iyiphakeji ye-1608 metric (0603) enkulu ngokomzimba, ngakho-ke ingasuswa kalula uma umsebenzisi efuna ukuhlukanisa i-ADC_VREF futhi enze izinguquko zakhe ku-ADC vol.tage, isibample ukukunika amandla kusuka ku-volt ehluke ngokupheleletage (isb. 2.5V). Qaphela ukuthi i-ADC ku-RP2350 ifaneleke kuphela ku-3.0/3.3V, kodwa kufanele isebenze ifinyelele cishe ku-2V.

I-Powerchain
I-Pico 2 W yakhelwe ngendlela elula kodwa eguquguqukayo yokuhlinzeka amandla futhi inganikwa amandla kalula kusuka kweminye imithombo efana namabhethri noma izinto ezisetshenziswa ngaphandle. Ukuhlanganisa i-Pico 2 W namasekhethi wokushaja angaphandle nakho kuqondile. Umfanekiso 8 ubonisa ukujikeleza kokuphakelwa kwamandla.

• I-VBUS okokufaka okungu-5V okuvela embotsheni ye-Micro-USB, ephakelwa nge-Schottky diode ukuze kukhiqizwe i-VSYS. I-VBUS kuya ku-VSYS diode (D1) yengeza ukuguquguquka ngokuvumela amandla ORing wezinto ezahlukene ku-VSYS.
• I-VSYS iyisistimu eyinhloko 'yokufaka ivolumutage' futhi iphakele i-RT6154 buck-boost SMPS, ekhiqiza okukhiphayo okungaguquki okungu-3.3V kwedivayisi ye-RP2350 kanye ne-I/O yayo (futhi ingasetshenziselwa ukunika amandla ukujikeleza kwangaphandle). I-VSYS ihlukaniswe ngo-3 (ngo-R5, u-R6 kuhlelo lwe-Pico 2 W) futhi ingagadwa kusiteshi 3 se-ADC uma ukudluliswa okungenantambo kungapheli. Lokhu kungasetshenziswa ku-example njengebhethri elingahluziwetage ukuqapha.
• I-SMPS ye-buck-boost, njengoba negama layo lisho, ingashintsha ngaphandle komthungo isuke ku-buck iye kwimodi yokuthuthukisa, ngakho-ke ingagcina ivolumu yokuphumayo.tage ka-3.3V kusuka kububanzi obubanzi bokufaka umthamotages, ~1.8V kuya ku-5.5V, okuvumela ukuguquguquka okuningi ekukhetheni umthombo wamandla.
• I-WL_GPIO2 iqapha ubukhona be-VBUS, kuyilapho u-R10 no-R1 benza i-VBUS phansi ukuze baqiniseke ukuthi ingu-0V uma i-VBUS ingekho.
• I-WL_GPIO1 ilawula iphinikhodi ye-RT6154 PS (ukonga amandla). Uma i-PS iphansi (okuzenzakalelayo ku-Pico 2 W) isilawuli sikwimodi ye-pulse frequency modulation (PFM), okuthi, ekulayishweni okulula, yonge amandla amakhulu ngokuvula kuphela ama-MOSFET ashintshayo ngezikhathi ezithile ukuze kugcinwe i-capacitor ephumayo iphezulu. Ukusetha i-PS ephezulu kuphoqelela isilawuli kumodi yokushintshanisa ububanzi be-pulse (PWM). Imodi ye-PWM iphoqa i-SMPS ukuthi ishintshe ngokuqhubekayo, okunciphisa ukuphuma kwe-ripple kakhulu ekulayisheni okulula (okungaba kuhle kwezinye izimo zokusetshenziswa) kodwa ngezindleko zokusebenza kahle kakhulu. Qaphela ukuthi ngaphansi komthwalo osindayo i-SMPS izoba kumodi ye-PWM ngokunganaki isimo sephinikhodi ye-PS.
• Iphinikhodi ye-SMPS EN idonselwa ku-VSYS nge-resistor engu-100kΩ futhi yenziwe yatholakala ku-Pico 2 W pin 37. Ukufinyeza le phinikhodi phansi kuzokhubaza i-SMPS futhi kuyibeka esimweni samandla aphansi.

QAPHELA 
I-RP2350 inesilawuli se-on-chip linear (i-LDO) esinika amandla umgogodla wedijithali ku-1.1V (igama) kusukela ekunikezeni okungu-3.3V, okungabonisiwe kuMfanekiso 8.

Inika amandla i-Raspberry Pico 2 W

• Indlela elula yokunika amandla i-Pico 2 W iwukuxhuma i-micro-USB, ezonika amandla i-VSYS (ngakhoke nohlelo) isuka ku-5V USB VBUS vol.tage, nge-D1 (ngakho i-VSYS iba yi-VBUS khipha ukwehla kwe-Schottky diode).
• Uma imbobo ye-USB kuwukuphela komthombo wamandla, i-VSYS ne-VBUS zingafushaniswa ngokuphephile ndawonye ukuze kuqedwe ukwehla kwe-Schottky diode (okuthuthukisa ukusebenza kahle nokunciphisa ukugeleza kwe-VSYS).
• Uma imbobo ye-USB ingeke isetshenziswe, kuphephile ukunika amandla i-Pico 2 W ngokuxhuma i-VSYS kumthombo wakho wamandla owuncamelayo (ebangeni ~1.8V ukuya ku-5.5V).

KUBALULEKILE
Uma usebenzisa i-Pico 2 W kwimodi yokusingatha i-USB (isb. usebenzisa enye ye-TinyUSB host examples) lapho-ke kufanele unike amandla i-Pico 2 W ngokunikeza i-5V kuphinikhodi ye-VBUS.

Indlela elula yokwengeza ngokuphephile umthombo wamandla wesibili ku-Pico 2 W ukuwuphakela ku-VSYS usebenzisa enye i-Schottky diode (bona Umfanekiso 9). Lokhu kuzoba 'NOMA' amavolumu amabilitages, okuvumela ukuphakama kwevolumu yangaphandletage noma i-VBUS ukuze inike amandla i-VSYS, ngama-diode avimbela noma yikuphi ukuhlinzeka kusukela ekunikezeni amandla emuva okunye. OkwesiboneloampIseli elilodwa le-Lithium-Ion* (iseli voltage ~3.0V ukuya ku-4.2V) izosebenza kahle, njengoba kuzoba namaseli ochungechunge lwe-AA amathathu (~3.0V ukuya ku-~4.8V) kanye nanoma yikuphi okunye ukunikezwa okugxilile kububanzi ~2.3V kuya ku-5.5V. Okubi ngale ndlela ukuthi ukunikezwa kwamandla kwesibili kuzobhekana nokwehla kwe-diode ngendlela efanayo ne-VBUS eyenza ngayo, futhi lokhu kungase kungafiseleki ngokombono osebenza kahle noma uma umthombo ususeduze nobubanzi obuphansi bevolthi yokufaka.tagevunyelwe i-RT6154.

Indlela ethuthukisiwe yokwenza amandla kusuka kumthombo wesibili ukusebenzisa i-P-channel MOSFET (P-FET) ukuze ithathele indawo ye-Schottky diode njengoba kuboniswe kuMfanekiso 10. Lapha, isango le-FET lilawulwa yi-VBUS, futhi lizonqamula umthombo wesibili lapho i-VBUS ikhona. I-P-FET kufanele ikhethwe ukuthi ibe nokumelana okuphansi, ngakho-ke inqobe ukusebenza kahle kanye nevolumutagIzinkinga ze-e-drop ngesisombululo se-diode kuphela.

• Qaphela ukuthi i-Vt (threshold voltage) ye-P-FET kumele ikhethwe ukuthi ibe ngaphansi kakhulu komthamo wokufaka wangaphandle omncanetage, ukuqinisekisa ukuthi i-P-FET ivulwa ngokushesha futhi inokumelana okuphansi. Lapho okokufaka kwe-VBUS kukhishwa, i-P-FET ngeke iqale ukuvula kuze kube yilapho i-VBUS yehla ngaphansi kwe-Vt ye-P-FET, okwamanje i-diode yomzimba ye-P-FET ingase iqale ukuqhuba (kuye ngokuthi i-Vt incane yini kunokwehla kwe-diode). Okokufaka okunomthamo omncane ophansi wokufakwayotage, noma uma isango le-P-FET kulindeleke ukuthi lishintshe kancane (isb. uma noma iyiphi i-capacitance yengezwa ku-VBUS) kunconywa i-Schottky diode yesibili kuyo yonke i-P-FET (endaweni efanayo ne-body diode) iyanconywa. Lokhu kuzonciphisa umthamotage yehlela ngaphesheya kwe-P-FET's body diode.
• Umuntu wakudalaampI-le ye-P-MOSFET efanelekile ezimweni eziningi i-Diodes DMG2305UX ene-Vt ephezulu engu-0.9V kanye ne-Ron engu-100mΩ (ku-2.5V Vgs).

ISEXWAYISO
Uma usebenzisa amaseli e-Lithium-Ion kufanele abe, noma ahlinzekwe, isivikelo esanele ekukhishweni ngokweqile, ekushajweni ngokweqile, ekushajeni ngaphandle kwebanga lokushisa elivunyelwe, kanye nokudlulela. Amaseli angenalutho, angavikelekile ayingozi futhi angabamba umlilo noma aqhume uma ekhishwe kakhulu, eshajwe kakhulu noma eshajwa/ekhishwa ngaphandle kwezinga lokushisa elivunyelwe kanye/noma nobubanzi bamanje.

Ukusebenzisa ishaja yebhethri
I-Pico 2 W ingasetshenziswa neshaja yebhethri. Nakuba lokhu kuyicala eliyinkimbinkimbi yokusetshenziswa lisaqondile. Umfanekiso 11 ubonisa i-exampyokusebenzisa ishaja yohlobo 'lwendlela yamandla' (lapho ishaja ikwazi kahle ukushintshanisa phakathi kokunikwa amandla ibhethri noma ukunika amandla umthombo wokufaka nokushaja ibhethri, njengoba kudingeka).

Ku-exampfuthi sondla i-VBUS kokokufaka kweshaja, futhi sondla i-VSYS ngokuphumayo ngohlelo olushiwo ngaphambili lwe-P-FET. Kuye ngesimo sakho sokusebenzisa ungase ufune ukwengeza i-Schottky diode kuyo yonke i-P-FET njengoba kuchazwe esigabeni sangaphambilini.

I-USB

• I-RP2350 ine-USB1.1 PHY ehlanganisiwe nesilawuli esingasetshenziswa kukho kokubili idivayisi nemodi yokusingatha. I-Pico 2 W yengeza izinqamuleli zangaphandle ezingu-27Ω ezidingekayo futhi iletha lesi sixhumanisi embobeni evamile ye-USB encane.
• Imbobo ye-USB ingasetshenziswa ukufinyelela i-USB bootloader (imodi ye-BOOTSEL) egcinwe ku-RP2350 boot ROM. Ingasetshenziswa futhi ngekhodi yomsebenzisi, ukufinyelela idivayisi yangaphandle ye-USB noma umsingathi.

I-interface engenantambo
I-Pico 2 W iqukethe i-on-board wireless interface engu-2.4GHz esebenzisa i-Infineon CYW43439, enezici ezilandelayo:

• I-WiFi 4 (802.11n), ibhendi eyodwa (2.4 GHz)
• I-WPA3
• I-SoftAP (Kufika kumaklayenti angu-4)
• I-Bluetooth 5.2
  • Usekelo lwezindima ze-Bluetooth LE Central kanye ne-Peripheral
  • Usekelo lwe-Bluetooth Classic

I-antenna wuthi olungaphakathi olunikezwe ilayisense yakwa-ABRACON (phambilini eyayaziwa ngokuthi yi-ProAnt). I-interface engenazintambo ixhunywe nge-SPI ku-RP2350.

• Ngenxa yemikhawulo yamaphini, amanye amaphini okuxhumana angenantambo ayabiwa. I-CLK yabelwe imonitha ye-VSYS, ngakho-ke kuphela uma kungekho okwenziwayo kwe-SPI okuqhubekayo lapho i-VSYS ingafundwa nge-ADC. I-Infineon CYW43439 DIN/DOUT kanye ne-IRQ bonke babelana ngephinikhodi eyodwa ku-RP2350. Kuphela uma umsebenzi we-SPI ungaqhubeki lapho kufanele khona ukuhlola ama-IRQ. I-interface ngokuvamile isebenza ku-33MHz.
• Ukuze usebenze kahle kakhulu okungenantambo, uthi kufanele lube sendaweni ekhululekile. Isibonelo, ukubeka insimbi ngaphansi noma ukuvala ngothi kunganciphisa ukusebenza kwayo kokubili ngokwenzuzo kanye nomkhawulokudonsa. Ukwengeza insimbi enesisekelo ezinhlangothini zothi kungathuthukisa umkhawulokudonsa we-antenna.
• Kunamaphinikhodi amathathu e-GPIO avela ku-CYW43439 asetshenziselwa eminye imisebenzi yebhodi futhi angatholakala kalula nge-SDK:
  • WL_GPIO2
  • Inzwa ye-IP VBUS - iphezulu uma i-VBUS ikhona, enye iphansi
  • WL_GPIO1
  • I-OP ilawula iphinikhodi yokonga amandla engaphakathi kwe-SMPS (Isigaba 3.4)
  • WL_GPIO0
• I-OP ixhumeke kumsebenzisi we-LED

QAPHELA 
Imininingwane egcwele ye-Infineon CYW43439 ingatholakala ku-Infineon webindawo.

Ukulungisa iphutha
I-Pico 2 W iletha i-RP2350 serial wire debug (SWD) interface kunhlokweni yokususa iphutha enamaphini amathathu. Ukuze uqalise ukusebenzisa imbobo yokususa iphutha bona ingxenye ethi Ukulungisa iphutha nge-SWD kokuthi Ukuqalisa ngencwadi yochungechunge lwe-Raspberry Pi Pico.

QAPHELA 
I-chip ye-RP2350 inezinqamuleli zokudonsa zangaphakathi kumaphini we-SWDIO kanye ne-SWCLK, kokubili okubizwa ngokuthi 60kΩ.

Isithasiselo A: Ukutholakala
I-Raspberry Pi iqinisekisa ukutholakala komkhiqizo we-Raspberry Pi Pico 2 W kuze kube okungenani uJanuwari 2028.

Ukusekela
Ukuze uthole ukwesekwa bheka isigaba se-Pico se-Raspberry Pi webindawo, bese uthumela imibuzo esithangamini se-Raspberry Pi.

Isithasiselo B: Izindawo zengxenye ye-Pico 2 W

Isithasiselo C: Isikhathi Esimaphakathi Phakathi Kokwehluleka (MTBF)

Ithebula 1. Isikhathi esimaphakathi phakathi kokwehluleka kwe-Raspberry Pi Pico 2 W

Imodeli	Isikhathi Esimaphakathi Phakathi Kokungaphumeleli Ground Benign (Amahora)	Isikhathi Esimaphakathi Phakathi Kwe-Failure Ground Mobile (Amahora)
Isiqephu 2 W	182 000	11 000

Ground, benign 
Isebenza ezindaweni ezilawulwa okungewona amaselula, izinga lokushisa kanye nokuswakama okufinyeleleka kalula ekulungisweni; kuhlanganisa amathuluzi aselabhorethri nempahla yokuhlola, okokusebenza kwe-elekthronikhi yezokwelapha, izakhiwo zekhompuyutha zebhizinisi nezesayensi.

Ground, mobile 
Ithatha amazinga okucindezelwa kokusebenza abe ngaphezu kokusetshenziswa okujwayelekile kwasekhaya noma okuncane kwasembonini, ngaphandle kwezinga lokushisa, umswakama noma ukulawulwa kokudlidliza: isebenza ezintweni ezisetshenziswayo ezifakwe ezimotweni ezinamasondo noma ezilandelwayo kanye nezinto ezisetshenziswayo ezithuthwa ngesandla; ihlanganisa imishini yezokuxhumana ephathwayo nephathwa ngesandla.

Umlando Wokukhishwa Kwemibhalo

• 25 Novemba 2024
• Ukukhishwa kokuqala.

Imibuzo Evame Ukubuzwa

Q: Kufanele kube yini ukunikezwa kwamandla kwe-Raspberry Pi Pico 2W?
A: Amandla kagesi kufanele anikeze i-5V DC kanye nenani elincane lamanje elilinganiselwe lika-1A.

Umbuzo: Ngingazitholaphi izitifiketi zokuthobela imithetho nezinombolo?
IMP: Kuzo zonke izitifiketi zokuthobela imithetho nezinombolo, sicela uvakashele www.raspberrypi.com/compliance.

Amadokhumenti / Izinsiza

Ibhodi le-Raspberry Pi Pico 2 W Microcontroller [pdf] Umhlahlandlela Womsebenzisi PICO2W, 2ABCB-PICO2W, 2ABCBPICO2W, Pico 2 W Microcontroller Board, Pico 2 W, Microcontroller Board, Ibhodi

Izithenjwa

• Imaniwali yosebenzisayo