Iprojekthi yeRaspberry Pi ibhengeze ukufumaneka kwesizukulwana esitsha sebhodi yeRaspberry Pi Zero W, edibanisa imilinganiselo edibeneyo kunye nenkxaso yeBluetooth kunye ne-Wi-Fi. Imodeli entsha ye-Raspberry Pi Zero 2 W yenziwe kwifom yefom ye-miniature efanayo (65 x 30 x 5 mm), i.e. malunga nesiqingatha sobungakanani beRaspberry Pi eqhelekileyo. Iintengiso ukuza kuthi ga ngoku ziqalisile kuphela e-UK, kwiManyano yaseYurophu, e-USA, eCanada naseHong Kong; ukuhanjiswa kwamanye amazwe kuya kuvula njengoko imodyuli engenazingcingo iqinisekiswa. Iindleko zeRaspberry Pi Zero 2 W yi-$ 15 (ukuthelekisa, iindleko zebhodi yeRaspberry Pi Zero W yi-$ 10, kunye neRaspberry Pi Zero yi-$ 5; ukuveliswa kweebhodi ezishibhile kuya kuqhubeka).
Umahluko ophambili phakathi kwemodeli entsha yeRaspberry Pi Zero lutshintsho ekusetyenzisweni kweBroadcom BCM2710A1 SoC, kufutshane naleyo isetyenziswe kwiibhodi zeRaspberry Pi 3 (kwisizukulwana sangaphambili seebhodi zeZero, iBroadcom BCM2835 SoC yanikezelwa, njengaku. iRaspberry Pi yokuqala). Ngokungafaniyo neRaspberry Pi 3, ukunciphisa ukusetyenziswa kwamandla, i-process frequency yancitshiswa ukusuka kwi-1.4GHz ukuya kwi-1GHz. Ngokujonga uvavanyo lwe-sysbench enemisonto emininzi, uhlaziyo lwe-SoC lwenza ukuba kube lula ukwandisa ukusebenza kwebhodi ngamaxesha e-5 (i-SoC entsha isebenzisa i-quad-core 64-bit Arm Cortex-A53 CPU endaweni ye-32-core eyodwa bit ARM11 ARM1176JZF-S).
Njengoko kuhlelo lwangaphambili, i-Raspberry Pi Zero 2 W inikeza i-512MB ye-RAM, i-Mini-HDMI port, izibuko ezimbini ze-Micro-USB (i-USB 2.0 kunye ne-OTG kunye ne-port yombane), i-slot ye-microSD, i-40-pin GPIO isixhumi. (ayithengiswanga), Ividiyo ehlanganisiweyo kunye neziphumo zekhamera (CSI-2). Ibhodi ixhotywe nge-chip ye-wireless exhasa i-Wi-Fi 802.11 b / g / n (2.4GHz), iBluetooth 4.2 kunye neBluetooth Low Energy (BLE). Ukudlula isatifikethi seFCC kunye nokukhusela ekuphazamisekeni kwangaphandle, i-chip ye-wireless kwibhodi entsha ihlanganiswe nentsimbi yentsimbi.
I-GPU edibeneyo kwi-SoC isekela i-OpenGL ES 1.1 kunye ne-2.0, kwaye ibonelela ngezixhobo zokukhawulezisa ukuchithwa kwevidiyo kwi-H.264 kunye neefomathi ze-MPEG-4 ezinomgangatho we-1080p30, kunye ne-encoding kwi-H.264 ifomathi, eyandisa uluhlu lokusetyenziswa ibhodi enezixhobo ezahlukeneyo zemultimedia kunye neenkqubo zekhaya elihlakaniphile. Ngelishwa, ubungakanani be-RAM bukhawulelwe kwi-512 MB kwaye abunakunyuswa ngenxa yokunciphisa umzimba webhodi. Ukubonelela nge-1GB ye-RAM kuya kufuna ukusetyenziswa koyilo oluntsonkothileyo olunemigangatho emininzi, abaphuhlisi abangekakulungeli ukulusebenzisa.
Eyona ngxaki xa uyila ibhodi yeRaspberry Pi Zero 2 W yayisombulula umba wokubeka imemori ye-LPDDR2 SDRAM. Kwisizukulwana sokuqala sebhodi, imemori ibekwe kwinqanaba elongezelelweyo ngaphezu kwe-chip ye-SoC, ephunyezwe kusetyenziswa iteknoloji ye-PoP (i-package-on-package), kodwa le ndlela ayikwazanga ukuphunyezwa kwi-chips entsha ye-Broadcom ngenxa yokunyuka ubungakanani be-SoC. Ukusombulula le ngxaki, kunye ne-Broadcom, inguqu ekhethekileyo ye-chip yaphuhliswa, apho imemori yahlanganiswa kwi-SoC.
Enye ingxaki yayikukwanda kokutshatyalaliswa kobushushu ngenxa yokusetyenziswa kweprosesa enamandla ngakumbi. Ingxaki yasonjululwa ngokongeza iileya ezishinyeneyo zobhedu ebhodini ukususa kunye nokuchitha ubushushu kwiprosesa. Ngenxa yoko, ubunzima bebhodi banda ngokuphawulekayo, kodwa ubuchule buthathwa njengempumelelo kwaye banele ukunqanda ukushisa kakhulu xa usenza ixesha elingenamkhawulo we-LINPACK uvavanyo loxinzelelo lwe-algebra kwiqondo lokushisa eliphakathi kwama-degrees angama-20.
Kwizixhobo ezikhuphisanayo, into esondeleyo kwi-Raspberry Pi Zero 2 W yibhodi yaseTshayina i-Orange Pi Zero Plus2, elinganisa i-46x48mm kwaye iza ne-$ 35 kunye ne-512MB ye-RAM kunye ne-Allwinner H3 chip. Ibhodi ye-Orange Pi Zero Plus2 ixhotyiswe nge-8 GB EMMC Flash, ine-port ye-HDMI epheleleyo, i-slot ye-TF Card, i-USB OTG, kunye nabafowunelwa bokudibanisa i-microphone, i-receiver infrared (IR) kunye nee-ports ezimbini ezongezelelweyo ze-USB. Ibhodi ixhotyiswe nge-quad-core Allwinner H5 (Cortex-A53) iprosesa eneMali Mali450 GPU okanye i-Allwinner H3 (Cortex-A7) kunye neMali400MP2 GPU. Esikhundleni se-40-pin GPIO, ikhonkco elifutshane le-26-pin linikezelwa, lihambelana neRaspberry Pi B +. Ibhodi ye-Orange Pi Zero 2 engaphantsi kwamandla iyafumaneka, kodwa iza ne-1 GB ye-RAM kunye ne-Ethernet port ngaphandle kwe-Wi-Fi.
umthombo: opennet.ru