Peb thiab ib nrab xyoo tom qab Raspberry Pi 3 Raspberry Pi Foundation tiam tshiab ntawm boards . Qauv "B" twb muaj rau kev txiav txim, Tus tshiab SoC BCM2711, uas yog ib qho kev rov tsim kho tshiab ntawm yav dhau los siv BCM283X nti, tsim siv 28nm txheej txheem thev naus laus zis. Tus nqi ntawm lub rooj tsavxwm tseem tsis tau hloov thiab tseem yog 35 US las.
Lub SoC tseem suav nrog plaub 64-ntsis ARMv8 cores thiab khiav ntawm tsuas yog nce me ntsis zaus (1.5GHz tsis yog 1.4GHz). Nyob rau tib lub sijhawm, kev hloov pauv hauv cov txheej txheem thev naus laus zis ua rau nws tuaj yeem hloov kho Cortex-A53 nrog cov tub ntxhais ua tau zoo dua Cortex-A72, uas coj kev ua haujlwm mus rau qib tshiab. Tsis tas li ntawd, kev hloov pauv tau ua rau kev siv LPDDR4 nco, uas, piv rau yav dhau los siv LPDDR2 nco, muab kev nce peb zaug hauv bandwidth. Raws li qhov tshwm sim, hauv kev ntsuas kev ua tau zoo ntawm pawg thawj coj saib tshiab ua tau zoo dua yav dhau los Raspberry Pi 3B + qauv los ntawm 2-4 zaug.
Lwm qhov sib txawv tseem ceeb suav nrog kev suav nrog PCI Express maub los, ob lub USB 3.0 chaw nres nkoj (ntxiv rau ob lub USB 2.0 chaw nres nkoj) thiab ob lub Micro HDMI chaw nres nkoj (yav dhau los ib qho tag nrho-size HDMI tau siv), tso cai rau koj los tso saib cov duab ntawm ob lub saib nrog 4K zoo. . VideoCore VI graphics accelerator tau hloov kho tshiab, uas txhawb nqa OpenGL ES 3.0 thiab muaj peev xwm txiav txim siab H.265 video nrog 4Kp60 zoo (lossis 4Kp30 ntawm ob lub saib). Lub zog tuaj yeem muab los ntawm USB-C (yav dhau los USB micro-B), ntawm GPIO lossis los ntawm kev xaiv PoE HAT (Hwj chim dhau Ethernet).
Ntxiv mus, qhov teeb meem ntev nrog RAM tsis txaus tau raug daws - tam sim no lub rooj tsavxwm tau muab rau hauv cov qauv nrog 1, 2 thiab 4 GB ntawm RAM (tus nqi $ 35, $ ββ45 thiab $ 55, raws li), uas ua rau lub rooj tsavxwm tshiab tsim kev daws teeb meem rau tsim cov chaw ua haujlwm, gaming platforms, thiab servers, rooj vag rau cov tsev ntse, chav tswj neeg hlau thiab niaj hnub multimedia systems.
Gigabit Ethernet maub los tau txhim kho, uas tam sim no txuas nrog SoC ntawm ib lub tsheb npav RGMII cais, uas tso cai rau nws ua tiav qhov kev tshaj tawm tag nrho. USB tam sim no tau siv los ntawm kev sib cais VLI maub los txuas ntawm PCI Express thiab muab tag nrho cov kev xa tawm ntawm 4Gbps. Raws li yav dhau los, lub rooj tsavxwm tau nruab nrog 40 GPIO chaw nres nkoj, DSI (kov screen txuas), CSI (lub koob yees duab kev sib txuas) thiab lub nti wireless uas txhawb nqa tus qauv 802.11ac, ua haujlwm ntawm 2.4GHz thiab 5GHz zaus thiab Bluetooth 5.0.
Nyob rau tib lub sijhawm, kev tshaj tawm tshiab ntawm kev faib tawm tau luam tawm , uas muab kev txhawb nqa tag nrho rau Raspberry Pi 4. Qhov kev tso tawm kuj tseem ceeb rau kev hloov pauv mus rau Debian 10 "Buster" pob hauv paus (yav dhau los Debian 9), ib qho tseem ceeb rov tsim kho ntawm tus neeg siv interface thiab suav nrog Mesa V3D tsav tsheb tshiab nrog. txhim kho 3D kev txhawb nqa tau zoo (nrog rau kev siv tau siv OpenGL kom ceev lub browser). Ob lub rooj sib txoos tau npaj rau rub tawm - ib qho luv luv () rau server systems thiab ua tiav (), muab nrog cov neeg siv ib puag ncig (ib rab diav rawg los ntawm LXDE). Rau nruab los ntawm Muaj txog 35 txhiab pob khoom muaj.
Tau qhov twg los: opennet.ru