Iphrojekthi ye-Raspberry Pi isimemezele ukutholakala kwesizukulwane esisha sebhodi le-Raspberry Pi Zero W, elihlanganisa ubukhulu obuhlangene nokusekelwa kwe-Bluetooth ne-Wi-Fi. Imodeli entsha ye-Raspberry Pi Zero 2 W yenziwe ngendlela efanayo yefomu elincane (65 x 30 x 5 mm), i.e. cishe ingxenye yesayizi ye-Raspberry Pi evamile. Ukuthengisa kuze kube manje sekuqale kuphela e-UK, European Union, USA, Canada naseHong Kong; ukulethwa kwamanye amazwe kuzovulwa njengoba imojula engenantambo iqinisekiswa. Izindleko zeRaspberry Pi Zero 2 W zingu-$15 (uma siqhathanisa, izindleko zebhodi leRaspberry Pi Zero W zingu-$10, kanti iRaspberry Pi Zero ingu-$5; ukukhiqizwa kwamabhodi ashibhile kuzoqhubeka).
Umehluko omkhulu phakathi kwemodeli entsha ye-Raspberry Pi Zero ukushintshela ekusetshenzisweni kwe-Broadcom BCM2710A1 SoC, eduze naleyo esetshenziswe kumabhodi we-Raspberry Pi 3 (esizukulwaneni sangaphambili samabhodi we-Zero, i-Broadcom BCM2835 SoC yanikezwa, njengaku. i-Raspberry Pi yokuqala). Ngokungafani ne-Raspberry Pi 3, ukunciphisa ukusetshenziswa kwamandla, imvamisa yephrosesa yehlisiwe isuka ku-1.4GHz yaya ku-1GHz. Uma sibheka ukuhlolwa kwe-sysbench enemicu eminingi, isibuyekezo se-SoC senze kwaba nokwenzeka ukukhulisa ukusebenza kwebhodi izikhathi ezi-5 (i-SoC entsha isebenzisa i-quad-core 64-bit Arm Cortex-A53 CPU esikhundleni se-single-core 32- kancane ARM11 ARM1176JZF-S).
Njengasohlelweni oludlule, i-Raspberry Pi Zero 2 W inikeza i-512MB ye-RAM, imbobo ye-Mini-HDMI, izimbobo ezimbili ze-Micro-USB (i-USB 2.0 ene-OTG kanye nembobo kagesi), i-microSD slot, i-40-pin GPIO isixhumi. (akuthengisiwe), Imiphumela eyinhlanganisela yevidiyo nekhamera (CSI-2). Ibhodi ifakwe i-chip engenantambo esekela i-Wi-Fi 802.11 b/g/n (2.4GHz), i-Bluetooth 4.2 kanye ne-Bluetooth Low Energy (BLE). Ukuze uphumelele isitifiketi se-FCC futhi uvikele ekuphazamisekeni kwangaphandle, i-chip engenawaya ebhodini elisha imbozwe ngekesi lensimbi.
I-GPU ehlanganiswe ku-SoC isekela i-OpenGL ES 1.1 ne-2.0, futhi inikeza amathuluzi okusheshisa ukukhishwa kwevidiyo ngefomethi ye-H.264 ne-MPEG-4 ngekhwalithi engu-1080p30, kanye nombhalo wekhodi ngefomethi ye-H.264, enweba ububanzi bokusetshenziswa ibhodi elinamadivayisi ahlukahlukene we-multimedia nezinhlelo zekhaya elihlakaniphile. Ngeshwa, usayizi we-RAM ukhawulelwe ku-512 MB futhi awukwazi ukunyuswa ngenxa yokulinganiselwa ngokomzimba kosayizi webhodi. Ukuhlinzeka nge-1GB ye-RAM kuzodinga ukusetshenziswa komklamo oyinkimbinkimbi wezendlalelo eziningi, onjiniyela abangakalungeli ukuwusebenzisa.
Inkinga enkulu lapho kuklanywa ibhodi le-Raspberry Pi Zero 2 W bekuwukuxazulula inkinga yokubeka inkumbulo ye-LPDDR2 SDRAM. Esizukulwaneni sokuqala sebhodi, inkumbulo yayisendlalelo eyengeziwe ngaphezu kwe-chip ye-SoC, isetshenziswe kusetshenziswa ubuchwepheshe be-PoP (package-on-package), kodwa le nqubo ayikwazanga ukusetshenziswa kuma-chips e-Broadcom amasha ngenxa yokwanda usayizi we-SoC. Ukuxazulula le nkinga, kanye ne-Broadcom, kwasungulwa inguqulo ekhethekile ye-chip, lapho inkumbulo yahlanganiswa khona ku-SoC.
Enye inkinga kwaba ukwanda kokushisa kokushisa ngenxa yokusetshenziswa kweprosesa enamandla kakhulu. Inkinga yaxazululwa ngokungeza izendlalelo zethusi eziwugqinsi ebhodini ukuze kukhishwe futhi kukhishwe ukushisa kuphrosesa. Ngenxa yalokhu, isisindo sebhodi sanda ngokuphawulekayo, kodwa inqubo yayibhekwa njengeyimpumelelo futhi yayanele ukugwema ukushisa ngokweqile lapho yenza isikhathi esingenamkhawulo se-LINPACK ukuhlolwa kokucindezeleka kwe-algebra okuqondile ekushiseni okuzungezile kwama-degree angu-20.
Kumadivayisi ancintisanayo, into eseduze kakhulu ku-Raspberry Pi Zero 2 W ibhodi lesiShayina i-Orange Pi Zero Plus2, ekala u-46x48mm futhi iza ngo-$35 no-512MB we-RAM kanye ne-Allwinner H3 chip. Ibhodi le-Orange Pi Zero Plus2 lifakwe i-8 GB EMMC Flash, linembobo ye-HDMI egcwele, imbobo ye-TF Card, i-USB OTG, kanye noxhumana nabo bokuxhuma imakrofoni, isamukeli se-infrared (IR) kanye nezimbobo ezimbili ze-USB ezengeziwe. Ibhodi lifakwe i-quad-core Allwinner H5 (Cortex-A53) processor ene-Mali Mali450 GPU noma i-Allwinner H3 (Cortex-A7) ene-Mali400MP2 GPU. Esikhundleni se-GPIO yamaphini angu-40, kunikezwa isixhumi esifushanisiwe samaphini angama-26, esihambisana ne-Raspberry Pi B+. Ibhodi le-Orange Pi Zero 2 elinamandla kancane liyatholakala, kodwa liza no-1 GB we-RAM kanye nembobo ye-Ethernet ngaphezu kwe-Wi-Fi.
Source: opennet.ru