{"id":35627,"date":"2019-10-31T22:05:26","date_gmt":"2019-10-31T19:05:26","guid":{"rendered":"https:\/\/prohoster.info\/blog\/predstavlena-plata-raspberry-pi-4\/"},"modified":"2019-10-31T22:05:26","modified_gmt":"2019-10-31T19:05:26","slug":"predstavlena-plata-raspberry-pi-4","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/predstavlena-plata-raspberry-pi-4","title":{"rendered":"A fost lansat placa Raspberry Pi 4","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Dup\u0103 trei ani \u0219i jum\u0103tate de la \u00eenfiin\u021bare<\/a><\/noindex> Raspberry Pi 3 organiza\u021bia Raspberry Pi Foundation a prezentat<\/a><\/noindex> noua genera\u021bie de pl\u0103ci Raspberry Pi 4<\/a><\/noindex>. Modelul «B» este deja disponibil pentru comand\u0103. echipat cu<\/a><\/noindex> noul SoC BCM2711, care reprezint\u0103 o variant\u0103 complet reproiectat\u0103 a chipului BCM283X utilizat anterior, fabricat pe un proces tehnologic de 28nm. Pre\u021bul pl\u0103cii a r\u0103mas neschimbat \u0219i este, ca \u00eenainte, de 35 de dolari SUA. <\/p>\n

SoC include \u00een continuare patru nuclee ARMv8 pe 64 de bi\u021bi \u0219i func\u021bioneaz\u0103 la o frecven\u021b\u0103 doar pu\u021bin crescut\u0103 (1,5 GHz \u00een loc de 1,4 GHz). Aceast\u0103 schimbare a procesului tehnologic a permis \u00eenlocuirea Cortex-A53 cu un nucleu Cortex-A72 mai performant, ceea ce a ridicat performan\u021ba la un nou nivel. \u00cen plus, s-a realizat trecerea la utilizarea memoriei LPDDR4, care, spre deosebire de memoria LPDDR2 utilizat\u0103 anterior, ofer\u0103 o l\u0103\u021bime de band\u0103 de trei ori mai mare. Ca urmare, \u00een testele de performan\u021b\u0103, noua plac\u0103 dep\u0103\u0219e\u0219te modelul anterior Raspberry Pi 3B+ de 2-4 ori.<\/p>\n

Printre alte diferen\u021be semnificative se num\u0103r\u0103 includerea unui controler PCI Express, dou\u0103 por\u021bi USB 3.0 (plus dou\u0103 por\u021bi USB 2.0) \u0219i dou\u0103 porturi Micro HDMI (\u00een loc de un HDMI de dimensiune normal\u0103), care permit afi\u0219area imaginilor pe dou\u0103 monitoare cu calitate 4K. Accelerarea grafic\u0103 a fost semnificativ actualizat\u0103 cu VideoCore VI, care suport\u0103 OpenGL ES 3.0 \u0219i este capabil s\u0103 decodeze video H.265 cu calitate 4Kp60 (sau 4Kp30 pe dou\u0103 monitoare). Alimentarea poate fi furnizat\u0103 prin portul USB-C (\u00een loc de USB micro-B), prin GPIO sau printr-un modul<\/a><\/noindex> PoE HAT (Power over Ethernet).<\/p>\n

\u00cen plus, problema de mult timp a dimensiunii insuficiente a memoriei RAM a fost solu\u021bionat\u0103 - placa este acum disponibil\u0103 \u00een variante cu 1, 2 \u0219i 4 GB RAM (cu pre\u021buri de 35$, 45$ \u0219i 55$), ceea ce face ca noua plac\u0103 s\u0103 fie o solu\u021bie adecvat\u0103 pentru crearea de sta\u021bii de lucru, platforme de gaming, servere, gateway-uri pentru case inteligente, blocuri de control pentru robo\u021bi \u0219i sisteme multimedia moderne. <\/p>\n

Un controler Ethernet gigabit \u00eembun\u0103t\u0103\u021bit, care acum este conectat la SoC printr-o magistral\u0103 separat\u0103 RGMII, permi\u021b\u00e2nd astfel ob\u021binerea performan\u021bei complete specificate. USB este acum implementat prin intermediul unui controler VLI separat, conectat prin PCI Express, oferind o l\u0103\u021bime de band\u0103 total\u0103 de 4 Gbps. A\u0219a cum era \u00eenainte, placa este echipat\u0103 cu 40 de porturi GPIO, DSI (conexiune pentru ecran tactil), CSI (conexiune pentru camer\u0103) \u0219i un cip de comunica\u021bie wireless care suport\u0103 standardul 802.11ac, func\u021bion\u00e2nd pe frecven\u021bele de 2.4GHz \u0219i 5GHz \u0219i Bluetooth 5.0.<\/p>\n

\"A<\/a><\/noindex><\/center><\/p>\n

De asemenea, a fost publicat\u0103 o nou\u0103 versiune a distribu\u021biei Raspbian<\/a><\/noindex>, care asigur\u0103 suport complet pentru Raspberry Pi 4. Lansarea este de asemenea notabil\u0103 prin trecerea la baza de date Debian 10 «Buster» (anterior se utiliza Debian 9), o refacere semnificativ\u0103 a interfe\u021bei utilizator \u0219i implementarea noului driver Mesa V3D cu suport 3D substan\u021bial \u00eembun\u0103t\u0103\u021bit (inclusiv utilizarea OpenGL pentru accelera\u021bia browser-ului). Dou\u0103 versiuni au fost preg\u0103tite pentru desc\u0103rcare - versiunea redus\u0103 (406 MB<\/a><\/noindex>) pentru sistemele server \u0219i una complet\u0103 (1.1 GB<\/a><\/noindex>), livrat\u0103 cu un mediu de utilizator PIXEL<\/a><\/noindex> (o ramur\u0103 a LXDE). Pentru instalare din repositorii<\/a><\/noindex> sunt disponibile aproximativ 35 de mii de pachete. <\/p>\n

\"A<\/a><\/noindex><\/center><\/p>\n

<\/a><\/noindex><\/p>\n

Sursa: opennet.ro<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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[…]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-35627","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47A fost prezentat\u0103 placa Raspberry Pi 4 | ProHoster","description":"Dup\u0103 trei ani \u0219i jum\u0103tate de la crearea Raspberry Pi 3, organiza\u021bia Raspberry Pi Foundation","canonical_url":"https:\/\/prohoster.info\/ro\/blog\/news\/predstavlena-plata-raspberry-pi-4","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"ro_RO","og:site_name":"ProHoster | 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