Raspberry Pi Pico 2 W Microcontroller Board

Zofotokozera:

• Dzina lazogulitsa: Raspberry Pi Pico 2 W
• Mphamvu yamagetsi: 5V DC
• Zovoteledwa zosachepera: 1A

Malangizo Ogwiritsira Ntchito Zogulitsa

Zambiri Zachitetezo:
Rasipiberi Pi Pico 2 W iyenera kutsatira malamulo ndi miyezo yoyenera m'dziko lomwe mukufuna kugwiritsa ntchito. Mphamvu yoperekedwa iyenera kukhala 5V DC yokhala ndi mphamvu yochepera 1A.

Zikalata Zogwirizana:
Pazitupa zonse ndi manambala, chonde pitani  www.raspberrypi.com/compliance.

Integration Information kwa OEM:
Wopanga zinthu za OEM/Host akuyenera kuwonetsetsa kuti akutsatira zofunikira za certification za FCC ndi ISED Canada pomwe gawoli liphatikizidwa muzogulitsa za Host. Onani FCC KDB 996369 D04 kuti mudziwe zambiri.

Kutsata Malamulo:
Pazinthu zomwe zikupezeka pamsika waku USA/Canada, ma tchanelo 1 mpaka 11 okha ndi omwe amapezeka pa 2.4GHz WLAN. Chipangizochi ndi mlongoti wake siziyenera kulumikizidwa kapena kugwiritsiridwa ntchito limodzi ndi mlongoti wina uliwonse kapena chotumizira mauthenga kupatula motsatira njira za FCC zotumizira ma multi-transmitter.

Zigawo za FCC Rule:
Gawoli limayang'aniridwa ndi magawo otsatirawa a FCC: 15.207, 15.209, 15.247, 15.401, ndi 15.407.

Raspberry Pi Pico 2 W Datasheet
RP2350-based microcontroller board yokhala ndi zingwe.

Colophon

• © 2024 Raspberry Pi Ltd
• Zolemba izi ndizovomerezeka pansi pa Creative Commons Attribution-NoDerivatives 4.0 International (CC BY-ND).
• tsiku lomanga: 2024-11-26
• kumanga-mtundu: d912d5f-woyera

Chidziwitso chodziletsa chalamulo

• DATA ZA NTCHITO NDI ZOKHULUPIRIKA ZA RASPBERRY PI PRODUCTs (KUphatikizirapo MA DATASHEETS) MONGA ZOSINTHAWIDWA NTHAWI NDI NTHAWI ("RESOURCES") IMAPEREKEDWA NDI RASPBERRY PI LTD ("RPL") "MOMWE ILIRI" NDI MAWU ALIYENSE KAPENA WOSAPATITSA NTCHITO, OSATI ZOTHANDIZA, KUTI, ZINTHU ZOTHANDIZA ZOKHUDZITSIDWA NDI KUGWIRITSA NTCHITO PA CHOLINGA ZINTHU ZINTHU ZINACHITIKA. Kufikira pamlingo wololedwa ndi lamulo lomwe silikupezeka pamwambowu , KAPENA PHINDU; KAPENA KUSONONGEDWA KWA Bzinesi) KOMA ZINACHITIKA NDI PA CHIPEMBEDZO CHONSE CHA NTCHITO, KAYA MU NTCHITO, ZINTHU ZOYENERA, KAPENA ZOPHUNZITSA (KUPHATIKIZAPO KUSABALALA KAPENA ZINTHU ZINTHU) ZAKUBWERA MUNJIRA ILIYONSE KUCHOKERA POGWIRITSA NTCHITO Upangiriwo, ZOSANGALATSA NGATI.
• RPL ili ndi ufulu wopanga zowonjezera, kuwongolera, kuwongolera kapena kusintha kwina kulikonse ku RESOURCES kapena zinthu zilizonse zomwe zafotokozedwamo nthawi iliyonse popanda kuzindikira.
• Ma RESOURCES amapangidwira ogwiritsa ntchito aluso omwe ali ndi milingo yoyenera ya chidziwitso cha mapangidwe. Ogwiritsa ntchito ali ndi udindo wosankha ndikugwiritsa ntchito RESOURCES ndi kugwiritsa ntchito kulikonse kwazinthu zomwe zafotokozedwamo. Wogwiritsa akuvomera kubwezera ndi kusunga RPL kukhala yopanda vuto pazongongole zonse, ndalama, zowonongeka kapena zotayika zina zomwe zimabwera chifukwa chogwiritsa ntchito RESOURCES.
• RPL imapatsa ogwiritsa ntchito chilolezo chogwiritsa ntchito RESOURCES molumikizana ndi zinthu za Raspberry Pi. Kugwiritsa ntchito kwina konse kwa RESOURCES ndikoletsedwa. Palibe chilolezo choperekedwa kwa RPL ina iliyonse kapena ufulu wina waluntha.
• ZOCHITIKA ZOPANDA KWAMBIRI. Zogulitsa za Raspberry Pi sizinapangidwe, zopangidwa kapena zopangidwira kuti zigwiritsidwe ntchito m'malo owopsa omwe amafunikira kuti asagwire bwino ntchito, monga kugwiritsa ntchito zida za nyukiliya, kayendedwe ka ndege kapena njira zoyankhulirana, kayendetsedwe ka ndege, zida zankhondo kapena zida zofunikira pachitetezo (kuphatikiza machitidwe othandizira moyo ndi zida zina zamankhwala), momwe kulephera kwazinthuzo kungayambitse imfa, kuvulala kapena kuwonongeka kwakukulu kwakuthupi kapena chilengedwe (") RPL imatsutsa mwatsatanetsatane chitsimikizo chilichonse chosonyeza kulimba kwa Zochitika Zowopsa Kwambiri ndipo savomereza mangawa ogwiritsira ntchito kapena kuphatikiza zinthu za Raspberry Pi mu High Risk Activities.
• Zogulitsa za Raspberry Pi zimaperekedwa malinga ndi RPL's Standard Terms. Kupereka kwa RPL kwa RESOURCES sikukulitsa kapena kusintha Migwirizano Yapakatikati ya RPL kuphatikiza koma osati kungodziletsa ndi zitsimikizo zomwe zafotokozedwamo.

Mutu 1. Za Pico 2 W
Rasipiberi Pi Pico 2 W ndi bolodi la microcontroller lochokera pa Raspberry Pi RP2350 microcontroller chip.

Rasipiberi Pi Pico 2 W idapangidwa kuti ikhale nsanja yotsika mtengo koma yosinthika ya RP2350, yokhala ndi mawonekedwe opanda zingwe a 2.4GHz ndi zinthu zotsatirazi:

• RP2350 microcontroller yokhala ndi 4 MB ya flash memory
• Pa board single-band 2.4GHz opanda zingwe (802.11n, Bluetooth 5.2)
  • Kuthandizira kwa Bluetooth LE Central ndi Peripheral maudindo
  • Thandizo la Bluetooth Classic
• Doko la Micro USB B lamphamvu ndi data (komanso kukonzanso kung'anima)
• 40-pini 21mm × 51mm 'DIP' kalembedwe 1mm wandiweyani PCB yokhala ndi 0.1 ″ mapini obowonso okhala ndi ma castellation m'mphepete
  • Imawonetsa 26 multifunction 3.3V general purpose I/O (GPIO)
  • 23 GPIO ndi ya digito yokha, ndipo atatu alinso ndi ADC okhoza
  • Ikhoza kuikidwa pamwamba ngati module
• 3-pin Arm serial wire debug (SWD) port
• Mamangidwe osavuta koma osinthika kwambiri amagetsi
  • Zosankha zingapo zopangira mphamvu ya chipangizocho kuchokera ku Micro USB, zinthu zakunja kapena mabatire
• Makhalidwe apamwamba, otsika mtengo, kupezeka kwakukulu
• Comprehensive SDK, mapulogalamu examples ndi zolemba

Kuti mumve zambiri za RP2350 microcontroller chonde onani buku la RP2350 Datasheet. Zinthu zazikuluzikulu zikuphatikiza:

• Dual Cortex-M33 kapena RISC-V Hazard3 cores yokhala ndi wotchi mpaka 150MHz
  • Ma PLL awiri pa-chip amalola ma frequency apakati ndi zotumphukira
• SRAM ya 520 kB yokhala ndi mabanki ambiri
• Kuwala kwa Quad-SPI yakunja yokhala ndi eXecute In Place (XIP) ndi 16kB on-chip cache
• Nsalu zamabasi zogwira ntchito kwambiri
• M'bwalo USB1.1 (chipangizo kapena host)
• 30 Multi-function general purpose I/O (anayi angagwiritsidwe ntchito pa ADC)
  • 1.8-3.3VI/O voltage
• 12-bit 500ksps analogi kuti digito Converter (ADC)
• Mitundu yosiyanasiyana ya digito
  • 2 × UART, 2 × I2C, 2 × SPI, 24 × PWM njira, 1 × HSTX zotumphukira
  • 1 × timer yokhala ndi ma alarm 4, 1 × AON Timer
• 3 × programmable I/O (PIO) midadada, 12 boma makina onse
  • Wosinthika, wosavuta kugwiritsa ntchito I/O yothamanga kwambiri
  • Itha kutsanzira zolumikizira monga SD khadi ndi VGA

ZINDIKIRANI

• Raspberry Pi Pico 2 WI/O voltage imakhazikika pa 3.3V
• Rasipiberi Pi Pico 2 W imapereka zozungulira zochepa koma zosinthika zakunja kuti zithandizire chip RP2350: flash memory (Winbond W25Q16JV), kristalo (Abracon ABM8-272-T3), zida zamagetsi ndi zolumikizira, ndi cholumikizira cha USB. Zambiri mwa zikhomo za RP2350 microcontroller zimabweretsedwa kwa wogwiritsa ntchito I/O kumanzere ndi kumanja kwa bolodi. Zinayi za RP2350 I/O zimagwiritsidwa ntchito pazinthu zamkati: kuyendetsa LED, kuwongolera mphamvu yamagetsi pa board switch mode (SMPS), ndikuzindikira mphamvu yamagetsi.tages.
• Pico 2 W ili ndi mawonekedwe opanda zingwe a 2.4GHz pogwiritsa ntchito Infineon CYW43439. Mlongoti ndi mlongoti wapamtunda wololedwa kuchokera ku Abracon (omwe kale anali ProAnt). Mawonekedwe opanda zingwe amalumikizidwa kudzera pa SPI kupita ku RP2350.
• Pico 2 W idapangidwa kuti igwiritse ntchito mitu ya pini-inchi 0.1-inchi (ndi 0.1-inch pitch yotambasula kuposa phukusi la DIP la pini 40), kapena kuti ikhale ngati 'module' yokwera pamwamba, monga mapini a I/O amapangidwanso.
• Pali ma SMT pads pansi pa cholumikizira cha USB ndi batani la BOOTSEL, zomwe zimalola kuti zizindikilozi zizipezeka ngati zitagwiritsidwa ntchito ngati gawo la SMT logulitsidwanso.

• Rasipiberi Pi Pico 2 W imagwiritsa ntchito SMPS yolimbikitsira pa bolodi yomwe imatha kupanga 3.3V yofunikira (mpaka RP2350 ndi mabwalo akunja) kuchokera kumitundu yosiyanasiyana yolowera.tages (~ 1.8 mpaka 5.5V). Izi zimathandiza kusinthasintha kwakukulu pakulimbikitsa gawolo kuchokera kuzinthu zosiyanasiyana, monga selo limodzi la lithiamu-ion, kapena maselo atatu a AA mndandanda. Ma charger a batri amathanso kuphatikizidwa mosavuta ndi Pico 2 W powerchain.
• Kukonzanso kung'anima kwa Pico 2 W kutha kuchitidwa pogwiritsa ntchito USB (kungokoka ndikugwetsa a file pa Pico 2 W, yomwe imawoneka ngati chipangizo chosungiramo anthu ambiri), kapena doko la serial wire debug (SWD) limatha kukhazikitsanso dongosolo ndikuyika ndikuyendetsa ma code popanda kukanikiza batani lililonse. Doko la SWD litha kugwiritsidwanso ntchito kuwongolera zolakwika zomwe zikuyenda pa RP2350.

Kuyamba ndi Pico 2 W

• Buku la Getting With Raspberry Pi Pico-series likudutsa pakukweza mapulogalamu pa bolodi, ndikuwonetsa momwe mungayikitsire C/C++ SDK ndikumanga zakale.ample C mapulogalamu. Onani buku la Raspberry Pi Pico-mndandanda wa Python SDK kuti muyambe ndi MicroPython, yomwe ndi njira yachangu kwambiri yopezera ma code pa Pico 2 W.

Raspberry Pi Pico 2 W mapangidwe files
Kapangidwe ka gwero files, kuphatikiza masinthidwe ndi ma PCB, amapezeka poyera kupatula mlongoti. Mlongoti wa Niche™ ndi ukadaulo wa Abracon/Proant wokhala ndi patent. Chonde lemberani niche@abracon.com kuti mudziwe zambiri za chilolezo.

• Kamangidwe CAD ndi files, kuphatikiza masanjidwe a PCB, angapezeke apa. Dziwani kuti Pico 2 W idapangidwa mu Cadence Allegro PCB Editor, ndipo kutsegula mumaphukusi ena a PCB CAD kudzafunika script kapena pulogalamu yowonjezera.
• CHOCHITA 3D STEP 3D model of Rasipiberi Pi Pico 2 W, yowonera 3D komanso kuwunika koyenera kwa mapangidwe omwe akuphatikiza Pico 2 W monga gawo, angapezeke apa.
• Fritzing Gawo la Fritzing lomwe lingagwiritsidwe ntchito mwachitsanzo masanjidwe a bolodi la mkate likupezeka pano.
• Chilolezo chogwiritsa ntchito, kukopera, kusintha, ndi/kapena kugawa kapangidwe kameneka pazifukwa zilizonse popanda chindapusa chaperekedwa.
• ZOPANGIDWA ZINACHITIKA “MOMWE ZINALI” NDIPO WOLEMBA AMADZIWA ZINTHU ZONSE ZOKHUDZA ZOPANGIDWA ZIMENEZI KUPHATIKIRA ZINTHU ZONSE ZONSE ZOTHANDIZA ZOKHUDZITSIDWA NDI KUGWIRITSA NTCHITO. PALIBE WOLEMBA ADZAKHALA NDI NTCHITO PA ZINTHU ZAPAKHALIDWE, ZOCHITIKA, ZOSAVUTA, KAPENA ZONSE ZONSE ZONSE ZONSE ZOMWE ZINACHOKERA CHOMWE CHOCHITIKA NDI KUSAGWIRITSA NTCHITO, DATA KAPENA PHINDU, KAYA MKUCHITIKA NTCHITO, NTCHITO YOSAKHALITSA, KUSAKHALITSA ZINTHU ZINA. KUGWIRITSA NTCHITO KAPENA NTCHITO KAPANGIZO YI.C

Mutu 2. Kufotokozera kwamakina
Pico 2 W ndi mbali imodzi ya 51mm × 21mm × 1mm PCB yokhala ndi doko yaying'ono ya USB yotalikira m'mphepete mwake, ndi zikhomo zapawiri / zodutsa m'mphepete mwake. Mlongoti wa onboard opanda zingwe uli m'mphepete mwa pansi. Kuti mupewe kutulutsa mlongoti, palibe zinthu zomwe ziyenera kulowa mumlengalenga. Pico 2 W idapangidwa kuti ikhale yogwiritsidwa ntchito ngati gawo lokwera pamwamba komanso kuwonetsa mawonekedwe amtundu wapawiri (DIP), okhala ndi mapini akuluakulu 40 pa gridi ya 2.54mm (0.1 ″) yokhala ndi mabowo a 1mm, yogwirizana ndi veroboard ndi bolodi. Pico 2 W ilinso ndi mabowo anayi obowola a 2.1mm (± 0.05mm) kuti azitha kukonza makina (onani Chithunzi 3).

Pico 2 W pinout
Pico 2 W pinout idapangidwa kuti izitulutsa mwachindunji kuchuluka kwa RP2350 GPIO ndi ntchito zozungulira zamkati momwe zingathere, pomwe ikuperekanso mapini oyenerera pansi kuti achepetse kusokoneza kwa electro-magnetic (EMI) ndi ma signal crosstalk. RP2350 idamangidwa panjira yamakono ya 40nm silikoni, kotero mitengo yake ya digito ya I/O imathamanga kwambiri.

ZINDIKIRANI

• Manambala a pini akuwonetsedwa pa chithunzi 4. Kuti mugawe pini onani Chithunzi 2.

Zikhomo zochepa za RP2350 GPIO zimagwiritsidwa ntchito pazinthu zamkati:

• Chithunzi cha GPIO29 OP/IP opanda zingwe SPI CLK/ADC mode (ADC3) kuyeza VSYS/3
• Chithunzi cha GPIO25 OP opanda zingwe SPI CS - ikakwera imathandizanso GPIO29 ADC pin kuti iwerenge VSYS
• Chithunzi cha GPIO24 OP/IP opanda zingwe SPI data/IRQ
• Chithunzi cha GPIO23 OP opanda zingwe mphamvu pa siginecha
• WL_GPIO2 IP VBUS mphamvu - yapamwamba ngati VBUS ilipo, ina yotsika
• WL_GPIO1 OP imayang'anira pini yosungira mphamvu ya SMPS (Gawo 3.4)
• WL_GPIO0 OP yolumikizidwa ndi ogwiritsa ntchito a LED

Kupatula GPIO ndi zikhomo zapansi, pali zikhomo zina zisanu ndi ziwiri pamakina akuluakulu a 40:

• Chizindikiro V-BASI
• Chizindikiro Zithunzi za VSYS
• Chizindikiro 3V3_EN
• Chizindikiro Mtengo wa 3V3
• Chizindikiro ADC_VREF
• Chizindikiro Mtengo wa AGND
• Chizindikiro Thamangani

VBUS ndiye mphamvu yamagetsi ya Micro-USBtage, yolumikizidwa ndi pini ya doko ya micro-USB 1. Izi zimatchedwa 5V (kapena 0V ngati USB sichikulumikizidwa kapena mulibe mphamvu).

• VSYS ndiye main system input voltage, zomwe zingasiyane mumitundu yololedwa 1.8V mpaka 5.5V, ndipo imagwiritsidwa ntchito ndi SMPS pa bolodi kupanga 3.3V ya RP2350 ndi GPIO yake.
• 3V3_EN imalumikizana ndi pini yoyatsira SMPS, ndipo imakokedwa pamwamba (ku VSYS) kudzera pa 100kΩ resistor. Kuti mulepheretse 3.3V (yomwe imatsitsanso mphamvu za RP2350), fupikitsani pini iyi.
• 3V3 ndiye gawo lalikulu la 3.3V ku RP2350 ndi I/O yake, yopangidwa ndi ma SMPS omwe ali pa bolodi. Pini iyi itha kugwiritsidwa ntchito kupatsa mphamvu zozungulira zakunja (kuchuluka komweku kumatengera RP2350 katundu ndi VSYS vol.tage; tikulimbikitsidwa kusunga katundu pa pini iyi pansi pa 300mA).
• ADC_VREF ndiye mphamvu ya ADC (and reference) voltage, ndipo amapangidwa pa Pico 2 W posefa 3.3V. Pini iyi itha kugwiritsidwa ntchito ndi zofotokozera zakunja ngati ntchito yabwino ya ADC ikufunika.
• AGND ndiye maziko a GPIO26-29. Pali ndege ina yapansi panthaka yomwe ikuyenda pansi pazizindikirozi ndikuyimitsa papini iyi. Ngati ADC sikugwiritsidwa ntchito kapena ntchito ya ADC si yovuta, pini iyi ikhoza kugwirizanitsidwa ndi digito.
• RUN ndiye RP2350 yothandizira pini, ndipo ili ndi chopinga chamkati (pa-chip) chokokera mmwamba mpaka 3.3V cha pafupifupi ~ 50kΩ. Kuti mukonzenso RP2350, fupikitsani pini iyi yotsika.
• Pomaliza, palinso mfundo zisanu ndi imodzi zoyeserera (TP1-TP6), zomwe zitha kupezeka ngati zingafunike, mwachitsanzoample ngati mukugwiritsa ntchito ngati gawo lokwera pamwamba. Izi ndi:
  • TP1 Ground (malo oyandikana kwambiri ndi ma siginecha a USB)
  • TP2 USB DM
  • TP3 USB DP
  • TP4 WL_GPIO1/SMPS PS pini (musagwiritse ntchito)
  • TP5 WL_GPIO0/LED (osavomerezeka kugwiritsidwa ntchito)
  • TP6 BOOTSEL
• TP1, TP2 ndi TP3 zitha kugwiritsidwa ntchito kupeza masigino a USB m'malo mogwiritsa ntchito doko laling'ono la USB. TP6 ikhoza kugwiritsidwa ntchito kuyendetsa makinawo kuti asungidwe mosungiramo zinthu zambiri za USB (pochifupikitsa powonjezera mphamvu). Dziwani kuti TP4 sinapangidwe kuti igwiritsidwe ntchito kunja, ndipo TP5 siyovomerezedwa kuti igwiritsidwe ntchito chifukwa imangosuntha kuchokera ku 0V kupita ku LED yopita patsogolo.tage (ndicho chifukwa chake angagwiritsidwe ntchito ngati chotuluka ndi chisamaliro chapadera).

Zopondapo pamwamba
Chotsatira chotsatirachi (Chithunzi 5) chikulimbikitsidwa kuti chizigwiritsidwa ntchito ngati ma modules a Pico 2 W.

• Phazi likuwonetsa malo oyeserera ndi makulidwe a pad komanso ma 4 USB cholumikizira chipolopolo pansi pads (A,B,C,D). Cholumikizira cha USB pa Pico 2 W ndi gawo labowo, lomwe limapereka mphamvu zamakina. Zikhomo za socket za USB sizimatuluka pa bolodi, komabe solder imalowa pamapadi awa popanga ndipo imatha kuyimitsa gawolo kukhala lathyathyathya. Chifukwa chake timapereka ma pads pa SMT module footprint kulola kuti solder iyi ibwererenso mowongolera Pico 2 W ikadutsanso.
• Pazigawo zoyesa zomwe sizikugwiritsidwa ntchito, ndizovomerezeka kuchotsa mkuwa uliwonse pansi pa izi (ndi chilolezo choyenera) pa bolodi yonyamulira.
• Kupyolera mu mayesero ndi makasitomala, tatsimikiza kuti phala liyenera kukhala lalikulu kuposa phazi. Kuyika mapepala owonjezera kumatsimikizira zotsatira zabwino kwambiri pamene mukugulitsa. Masitepe otsatirawa a phala (Chithunzi 6) akuwonetsa miyeso ya solder phala pa Pico 2 W. Timalimbikitsa phala 163% zazikulu kuposa phazi.

Malo osungira
Pali kudula kwa mlongoti (14mm × 9mm). Ngati chilichonse chayikidwa pafupi ndi mlongoti (mugawo lililonse) mphamvu ya mlongoti imachepetsedwa. Rasipiberi Pi Pico W ayenera kuikidwa m'mphepete mwa bolodi osati kutsekedwa ndi chitsulo kuti asapange khola la Faraday. Kuonjezera nthaka m'mbali mwa mlongoti kumapangitsa kuti ntchitoyo ikhale yabwino pang'ono.

Analimbikitsa opareshoni zinthu
Miyezo yogwirira ntchito ya Pico 2 W imakhala yogwira ntchito pazomwe zimafotokozedwa ndi zigawo zake.

• Kutentha Kwambiri Kwambiri 70°C (kuphatikiza kudziwotcha)
• Kutentha kogwira ntchito Min -20°C
• VBUS 5V ± 10%.
• VSYS Min 1.8V
• VSYS Max 5.5V
• Zindikirani kuti VBUS ndi VSYS zamakono zitengera momwe mungagwiritsire ntchito, ena akaleampzaperekedwa mu gawo lotsatira.
• Kutentha kokwanira kozungulira kovomerezeka ndi 70°C.

Mutu 3. Zambiri zamapulogalamu

Kupanga flash

• Kung'anima kwa pa board 2MB QSPI kumatha kukonzedwanso pogwiritsa ntchito doko la serial wire debug port kapena ndi chipangizo chapadera cha USB chosungira.
• Njira yosavuta yosinthira mawonekedwe a Pico 2 W ndikugwiritsa ntchito mawonekedwe a USB. Kuti muchite izi, tsitsani bolodi, kenako gwirani batani la BOOTSEL pansi panthawi yoyimitsa (mwachitsanzo, gwiritsani BOOTSEL pansi ndikulumikiza USB). The
• Pico 2 W idzawoneka ngati chipangizo chosungiramo zinthu zambiri za USB. Kukoka wapadera '.uf2' file pa disk adzalemba izi file kung'anima ndikuyambitsanso Pico 2 W.
• Khodi ya boot ya USB imasungidwa mu ROM pa RP2350, kotero siyingalembedwe mwangozi.
• Kuti muyambe kugwiritsa ntchito doko la SWD onani Debugging ndi SWD gawo mu Kuyamba ndi buku la Raspberry Pi Pico-mndandanda.

Cholinga cha General I/O

• Pico 2 W's GPIO imayendetsedwa ndi njanji ya 3.3V, ndipo imakhazikika pa 3.3V.
• Pico 2 W ikuwonetsa 26 mwa 30 zotheka RP2350 GPIO mapini powatsogolera molunjika ku Pico 2 W mapini amutu. GPIO0 kupita ku GPIO22 ndi digito yokha, ndipo GPIO 26-28 ingagwiritsidwe ntchito ngati digito GPIO kapena zolowetsa za ADC (mapulogalamu osankhidwa).

ZINDIKIRANI

• GPIO 26-29 ndi ADC-akhoza ndipo ali ndi diode mkati reverse diode ku VDDIO (3.3V) njanji, kotero kulowetsa vol.tage sayenera kupitilira VDDIO kuphatikiza pafupifupi 300mV. Ngati RP2350 ilibe mphamvu, kugwiritsa ntchito voltage kumapini a GPIO awa 'adzawukhira' kudzera mu diode kulowa mu njanji ya VDDIO. GPIO zikhomo 0-25 (ndi zikhomo zochotsa) zilibe choletsa ichi chifukwa chake vol.tage ikhoza kugwiritsidwa ntchito pazikhomo izi pamene RP2350 ilibe mphamvu mpaka 3.3V.

Kugwiritsa ntchito ADC
RP2350 ADC ilibe pa-chip reference; imagwiritsa ntchito mphamvu yakeyake monga chofotokozera. Pa Pico 2 W pini ya ADC_AVDD (gawo la ADC) imapangidwa kuchokera ku SMPS 3.3V pogwiritsa ntchito fyuluta ya RC (201Ω kukhala 2.2μF).

1. Yankho ili limadalira kulondola kwa 3.3V SMPS
2. Phokoso lina la PSU silingasefedwe
3. ADC imakoka zamakono (pafupifupi 150μA ngati kutentha kwa diode kuli kolephereka, komwe kumasiyana pakati pa tchipisi); padzakhala kusintha kwachilengedwe pafupifupi 150μA*200 = ~30mV. Pali kusiyana pang'ono pakujambula komweko pomwe ADC ili sampling (pafupifupi +20μA), kotero kuti kuchotserako kumasiyananso ndi sampling komanso kutentha kwa ntchito.

Kusintha kukana pakati pa pini ya ADC_VREF ndi 3.3V kumatha kuchepetsa kuchotserako chifukwa cha phokoso lochulukirapo, zomwe zimakhala zothandiza ngati chogwiritsira ntchito chitha kuthandizira kuchulukitsa kwa ma s angapo.amples.

• Kuyendetsa pini ya SMPS mode (WL_GPIO1) kumapangitsa mphamvu zamagetsi kukhala PWM mode. Izi zitha kuchepetsa kwambiri kuphulika kwachilengedwe kwa SMPS pakulemera kopepuka, motero kumachepetsa kutulutsa kwa ADC. Izi zimachepetsa mphamvu ya mphamvu ya Pico 2 W pa katundu wopepuka, kotero kumapeto kwa ADC kutembenuka kwa PFM mode ikhoza kuyatsidwanso ndikuyendetsa WL_GPIO1 kutsika kamodzinso. Onani Gawo 3.4.
• Kuchepetsa kwa ADC kumatha kuchepetsedwa pomangirira njira yachiwiri ya ADC pansi, ndikugwiritsa ntchito muyeso wa zero ngati kuyerekezera kokwanira.
• Pakuchita bwino kwambiri kwa ADC, 3.0V shunt yakunja, monga LM4040, imatha kulumikizidwa kuchokera pa pini ya ADC_VREF kupita pansi. Dziwani kuti ngati mukuchita izi mtundu wa ADC uli ndi ma siginecha a 0V - 3.0V (osati 0V - 3.3V), ndipo shunt reference imakoka mosalekeza kudzera pa 200Ω filter resistor (3.3V - 3.0V)/200 = ~ 1.5mA.
• Dziwani kuti 1Ω resistor pa Pico 2 W (R9) idapangidwa kuti izithandizira ndi shunt reference zomwe zikadakhala zosakhazikika zikalumikizidwa mwachindunji ku 2.2μF. Imawonetsetsanso kuti pali kusefa ngakhale ngati 3.3V ndi ADC_VREF zafupikitsidwa palimodzi (zomwe ogwiritsa ntchito omwe amalolera phokoso ndipo akufuna kuchepetsa zomwe zachitikazo angafune kutero).
• R7 ndi lalikulu 1608 metric (0603) phukusi resistor, kotero akhoza kuchotsedwa mosavuta ngati wosuta akufuna kudzipatula ADC_VREF ndi kusintha awo ADC vol.tage, mzampndi kuyiyambitsa kuchokera ku voli yosiyanatage (mwachitsanzo 2.5V). Dziwani kuti ADC pa RP2350 idangoyeneretsedwa ku 3.0/3.3V, koma iyenera kugwira ntchito mpaka pafupifupi 2V.

Powerchain
Pico 2 W idapangidwa ndi njira yosavuta koma yosinthika yamagetsi ndipo imatha kuyendetsedwa mosavuta kuchokera kuzinthu zina monga mabatire kapena zinthu zakunja. Kuphatikiza Pico 2 W ndi mabwalo oyendetsera kunja ndikosavuta. Chithunzi 8 chikuwonetsa mayendedwe amagetsi.

• VBUS ndiye cholowetsa cha 5V kuchokera padoko la Micro-USB, lomwe limadyetsedwa kudzera pa Schottky diode kuti apange VSYS. VBUS kupita ku VSYS diode (D1) imawonjezera kusinthasintha polola mphamvu ORing yazinthu zosiyanasiyana mu VSYS.
• VSYS ndiye dongosolo lalikulu la 'input voltage' ndikudyetsa RT6154 buck-boost SMPS, yomwe imapanga kutulutsa kokhazikika kwa 3.3V kwa chipangizo cha RP2350 ndi I/O yake (ndipo chitha kugwiritsidwa ntchito kupatsa mphamvu zozungulira zakunja). VSYS yogawidwa ndi 3 (ndi R5, R6 mu Pico 2 W schematic) ndipo ikhoza kuyang'aniridwa pa ADC channel 3 pamene kutumiza opanda zingwe sikukuyenda. Izi zitha kugwiritsidwa ntchito ngati example ngati batire ya voltagndi monitor.
• Buck-boost SMPS, monga dzina lake limatanthawuzira, imatha kusintha mosavuta kuchoka ku buck kupita ku boost mode, motero imatha kusunga mphamvu.tage wa 3.3V kuchokera kumitundu yambiri yoloweratages, ~ 1.8V mpaka 5.5V, yomwe imalola kusinthasintha kwakukulu pakusankha gwero lamagetsi.
• WL_GPIO2 imayang'anira kukhalapo kwa VBUS, pomwe R10 ndi R1 amachita kukokera VBUS pansi kuti atsimikizire kuti ndi 0V ngati VBUS palibe.
• WL_GPIO1 imayang'anira pini ya RT6154 PS (kupulumutsa mphamvu). PS ikakhala yotsika (yosakhazikika pa Pico 2 W) wowongolera amakhala mumayendedwe a pulse frequency modulation (PFM), omwe, pakulemetsa, amapulumutsa mphamvu zambiri poyatsa ma MOSFET nthawi ndi nthawi kuti capacitor ikhale pamwamba. Kukhazikitsa PS kukweza kumakakamiza wowongolera kuti akhale pulse wide modulation (PWM) mode. Mawonekedwe a PWM amakakamiza SMPS kuti isinthe mosalekeza, zomwe zimachepetsa kutulutsa kwapang'onopang'ono (komwe kumatha kukhala kwabwino pakagwiritsidwe ntchito) koma pakuwonongeka koyipa kwambiri. Dziwani kuti pansi pa katundu wolemetsa SMPS idzakhala mu PWM mode mosasamala kanthu za pini ya PS.
• Pini ya SMPS EN imakokedwa mpaka ku VSYS ndi 100kΩ resistor ndipo imapezeka pa Pico 2 W pini 37. Kufupikitsa pini iyi pansi kudzalepheretsa SMPS ndikuyiyika mu mphamvu yochepa.

ZINDIKIRANI 
RP2350 ili ndi on-chip linear regulator (LDO) yomwe imathandizira pakatikati pa digito pa 1.1V (dzina) kuchokera ku 3.3V, yomwe sikuwonetsedwa pa Chithunzi 8.

Kulimbitsa Raspberry Pi Pico 2 W

• Njira yosavuta yopangira mphamvu Pico 2 W ndikulumikiza kachipangizo kakang'ono ka USB, komwe kamathandizira VSYS (ndipo dongosolo) kuchokera ku 5V USB VBUS vol.tage, kudzera pa D1 (kotero VSYS imakhala VBUS kuchotsa kutsika kwa Schottky diode).
• Ngati doko la USB ndilo gwero lamphamvu lokhalo, VSYS ndi VBUS zitha kufupikitsidwa pamodzi kuti zithetse kutsika kwa Schottky diode (komwe kumapangitsa kuti ntchitoyo ikhale yabwino komanso kuchepetsa kuthamanga kwa VSYS).
• Ngati doko la USB silidzagwiritsidwa ntchito, ndibwino kuti muyambitse Pico 2 W polumikiza VSYS kugwero lamagetsi lomwe mumakonda (mumitundu ~ 1.8V mpaka 5.5V).

ZOFUNIKA
Ngati mukugwiritsa ntchito Pico 2 W mu USB host mode (mwachitsanzo kugwiritsa ntchito imodzi mwa TinyUSB host host examples) ndiye muyenera kupatsa mphamvu Pico 2 W popereka 5V ku pini ya VBUS.

Njira yosavuta yowonjezerera mphamvu yachiwiri ku Pico 2 W ndikuyidyetsa mu VSYS kudzera pa diode ina ya Schottky (onani Chithunzi 9). Izi zidzakhala 'OR' ma voliyumu awiritages, kulola kukwezeka kwa voliyumu yakunjatage kapena VBUS kuti ipangitse VSYS, ndi ma diode omwe amalepheretsa kupereka kubwezera kumbuyo kwina. Za exampndi selo limodzi Lithium-Ion cell* (selo voltage ~ 3.0V mpaka 4.2V) idzagwira ntchito bwino, monganso ma cell atatu a AA (~ 3.0V mpaka ~ 4.8V) ndi zina zilizonse zokhazikika mumtundu ~ 2.3V mpaka 5.5V. Choyipa cha njira iyi ndikuti mphamvu yachiwiri idzawonongeka ndi diode mofanana ndi momwe VBUS imachitira, ndipo izi sizingakhale zofunika pakuwona bwino kapena ngati gwero liri pafupi ndi gawo lotsika la voliyumu yowonjezera.tagndikuloledwa kwa RT6154.

Njira yowonjezereka yopangira mphamvu kuchokera ku gwero lachiwiri ndikugwiritsa ntchito P-channel MOSFET (P-FET) kuti m'malo mwa Schottky diode monga momwe tawonetsera pa Chithunzi 10. Pano, chipata cha FET chikuyendetsedwa ndi VBUS, ndipo chidzachotsa gwero lachiwiri pamene VBUS ilipo. P-FET iyenera kusankhidwa kuti ikhale ndi kukana kochepa, motero imagonjetsa mphamvu ndi mphamvutagMavuto a e-drop okhala ndi diode-only solution.

• Dziwani kuti Vt (threshold voltage) ya P-FET iyenera kusankhidwa kuti ikhale yocheperapo pang'ono polowera kunjatage, kuwonetsetsa kuti P-FET imayatsidwa mwachangu komanso mopanda kukana. VBUS ikachotsedwa, P-FET sidzayamba kuyatsa mpaka VBUS itatsikira pansi pa P-FET's Vt, panthawiyi diode ya thupi ya P-FET ingayambe kuchita (kutengera ngati Vt ndi yaying'ono kuposa dontho la diode). Kwa zolowetsa zomwe zili ndi mphamvu yochepera yocheperatage, kapena ngati chipata cha P-FET chikuyembekezeka kusintha pang'onopang'ono (mwachitsanzo ngati mwayi uliwonse uwonjezedwa ku VBUS) ma Schottky diode yachiwiri kudutsa P-FET (mofanana ndi diode ya thupi) akulimbikitsidwa. Izi zidzachepetsa voltagimagwera kudutsa P-FET's body diode.
• Wakaleample ya P-MOSFET yoyenera nthawi zambiri ndi Diodes DMG2305UX yomwe ili ndi Vt yochuluka ya 0.9V ndi Ron ya 100mΩ (pa 2.5V Vgs).

CHENJEZO
Ngati akugwiritsa ntchito ma cell a Lithium-Ion ayenera kukhala, kapena kupatsidwa, chitetezo chokwanira kuti asatayike kwambiri, asachulukitse, kulipiritsa kunja komwe amaloledwa kutentha, komanso mafunde opitilira muyeso. Maselo opanda chitetezo ndi owopsa ndipo amatha kugwira moto kapena kuphulika ngati atayidwa mopitirira muyeso, ali ndi ndalama zambiri kapena alipiritsidwa / kutulutsidwa kunja kwa kutentha kwake komwe amaloledwa ndi / kapena komwe alipo.

Kugwiritsa ntchito batire
Pico 2 W itha kugwiritsidwanso ntchito ndi chojambulira cha batri. Ngakhale iyi ndi nkhani yovuta kwambiri yogwiritsira ntchito ndiyosavuta. Chithunzi 11 chikuwonetsa exampkugwiritsa ntchito chojambulira chamtundu wa 'njira yamagetsi' (pomwe chojambulira chimatha kusinthana pakati pa magetsi kuchokera ku batire kapena kuyatsa kuchokera komwe kulowera ndi kulipiritsa batire, ngati pakufunika).

Mu example timadyetsa VBUS kulowetsa kwa charger, ndipo timadyetsa VSYS ndi zotuluka kudzera mu dongosolo lomwe latchulidwa kale la P-FET. Kutengera momwe mumagwiritsira ntchito mungafunenso kuwonjezera diode ya Schottky kudutsa P-FET monga tafotokozera m'gawo lapitalo.

USB

• RP2350 ili ndi USB1.1 PHY yophatikizika ndi chowongolera chomwe chingagwiritsidwe ntchito pazida zonse ndi makina ochitira. Pico 2 W imawonjezera zida ziwiri zofunika 27Ω zakunja ndikubweretsa mawonekedwewa padoko laling'ono la USB.
• Doko la USB lingagwiritsidwe ntchito kupeza USB bootloader (BOOTSEL mode) yosungidwa mu RP2350 boot ROM. Itha kugwiritsidwanso ntchito ndi code yogwiritsa ntchito, kuti mupeze chipangizo chakunja cha USB kapena cholandila.

Mawonekedwe opanda zingwe
Pico 2 W ili ndi mawonekedwe opanda zingwe a 2.4GHz pogwiritsa ntchito Infineon CYW43439, yomwe ili ndi izi:

• WiFi 4 (802.11n), Bandi Limodzi (2.4 GHz)
• WPA3
• SoftAP (Mpaka makasitomala 4)
• Bluetooth 5.2
  • Kuthandizira kwa Bluetooth LE Central ndi Peripheral maudindo
  • Thandizo la Bluetooth Classic

Mlongoti ndi mlongoti wapabwalo wololedwa kuchokera ku ABRACON (omwe kale anali ProAnt). Mawonekedwe opanda zingwe amalumikizidwa kudzera pa SPI kupita ku RP2350.

• Chifukwa cha malire a pini, mapini ena opanda zingwe amagawidwa. CLK imagawidwa ndi VSYS monitor, kotero pokhapokha ngati palibe ntchito ya SPI yomwe ikuchitika VSYS ikhoza kuwerengedwa kudzera pa ADC. Infineon CYW43439 DIN/DOUT ndi IRQ onse amagawana pini imodzi pa RP2350. Pokhapokha ngati ntchito ya SPI siyikuyenda m'pamene ndiyenera kuyang'ana ma IRQ. Mawonekedwe ake nthawi zambiri amayenda pa 33MHz.
• Kuti mugwire bwino ntchito opanda zingwe, mlongoti uyenera kukhala pamalo aulere. Mwachitsanzo, kuyika chitsulo pansi kapena pafupi ndi mlongoti kungathe kuchepetsa ntchito yake popindula ndi bandwidth. Kuyika zitsulo zokhazikika m'mbali mwa mlongoti kumatha kusintha bandwidth ya mlongoti.
• Pali zikhomo zitatu za GPIO zochokera ku CYW43439 zomwe zimagwiritsidwa ntchito pazinthu zina za board ndipo zitha kupezeka mosavuta kudzera pa SDK:
  • WL_GPIO2
  • IP VBUS mphamvu - yapamwamba ngati VBUS ilipo, ina yotsika
  • WL_GPIO1
  • OP imayang'anira pini yosungira mphamvu ya SMPS (Gawo 3.4)
  • WL_GPIO0
• OP yolumikizidwa ndi ogwiritsa ntchito a LED

ZINDIKIRANI 
Zambiri za Infineon CYW43439 zitha kupezeka pa Infineon webmalo.

Kuthetsa vuto
Pico 2 W imabweretsa mawonekedwe a RP2350 serial wire debug (SWD) pamutu wamapini atatu. Kuti muyambe kugwiritsa ntchito doko la debug onani Debugging ndi SWD gawo mu Kuyamba ndi buku la Raspberry Pi Pico-mndandanda.

ZINDIKIRANI 
Chip cha RP2350 chili ndi zopinga zamkati za SWDIO ndi SWCLK, zonse zomwe zimatchedwa 60kΩ.

Zowonjezera A: Kupezeka
Raspberry Pi akutsimikizira kupezeka kwa Raspberry Pi Pico 2 W mpaka osachepera Januware 2028.

Thandizo
Kuti mupeze chithandizo onani gawo la Pico la Raspberry Pi webtsamba, ndikuyika mafunso pa forum ya Raspberry Pi.

Zowonjezera B: Malo a chigawo cha Pico 2 W

Zowonjezera C: Nthawi Yapakati Pakati pa Kulephera (MTBF)

Table 1. Nthawi yapakati pakati pa kulephera kwa Raspberry Pi Pico 2 W

Chitsanzo	Nthawi Yapakati Pakati Pakulephera Ground Benign (Maola)	Nthawi Yapakati Pakati pa Kulephera Ground Mobile (Maola)
Chithunzi 2W	182 000	11 000

Pansi, zabwino 
Imagwiritsidwa ntchito kumadera omwe si a m'manja, kutentha ndi chinyezi zomwe zimayendetsedwa mosavuta; zikuphatikiza zida za labotale ndi zida zoyesera, zida zamagetsi zamankhwala, mabizinesi ndi makompyuta asayansi.

Pansi, mobile 
Imatengera kupsinjika kwa magwiridwe antchito kuposa momwe amagwiritsidwira ntchito m'nyumba kapena m'mafakitale, popanda kutentha, chinyezi kapena kugwedezeka: imagwira ntchito pazida zomwe zimayikidwa pamagalimoto amawilo kapena zolondoleredwa ndi zida zonyamulidwa pamanja; zikuphatikiza zida zoyankhulirana zam'manja ndi m'manja.

Mbiri Yotulutsa Zolemba

• Novembala 25, 2024
• Kutulutsidwa koyamba.

FAQs

Q: Kodi magetsi a Raspberry Pi Pico 2W akuyenera kukhala chiyani?
A: Magetsi ayenera kupereka 5V DC ndi osachepera ovotera panopa 1A.

Q: Ndingapeze kuti ziphaso ndi manambala otsatiridwa?
A: Pazitupa zonse ndi manambala, chonde pitani www.raspberrypi.com/compliance.

Zolemba / Zothandizira

Raspberry Pi Pico 2 W Microcontroller Board [pdf] Buku Logwiritsa Ntchito PICO2W, 2ABCB-PICO2W, 2ABCBPICO2W, Pico 2 W Microcontroller Board, Pico 2 W, Microcontroller Board, Board

Maumboni

• Buku Logwiritsa Ntchito