{"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\/cs\/blog\/news\/predstavlena-plata-raspberry-pi-4","title":{"rendered":"Byla p\u0159edstavena deska Raspberry Pi 4","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Po t\u0159ech a p\u016fl letech od vytvo\u0159en\u00ed<\/a><\/noindex> Raspberry Pi 3 organizace Raspberry Pi Foundation p\u0159edstavila<\/a><\/noindex> nov\u00e9 generace desek Raspberry Pi 4<\/a><\/noindex>. Model \u201eB\u201c je nyn\u00ed k dispozici pro objedn\u00e1vku. vybaven\u00fd<\/a><\/noindex> nov\u00fdm SoC BCM2711, kter\u00fd je zcela p\u0159epracovanou verz\u00ed d\u0159\u00edve pou\u017e\u00edvan\u00e9ho \u010dipu BCM283X, vyr\u00e1b\u011bn\u00e9ho technologi\u00ed 28nm. Cena desky z\u016fstala nezm\u011bn\u011bn\u00e1 a \u010din\u00ed op\u011bt 35 dolar\u016f. <\/p>\n

SoC d\u00e1le zahrnuje \u010dty\u0159i 64bitov\u00e1 j\u00e1dra ARMv8 a pracuje s m\u00edrn\u011b zv\u00fd\u0161enou frekvenc\u00ed (1.5 GHz nam\u00edsto 1.4 GHz). Zm\u011bna v\u00fdrobn\u00edho procesu umo\u017enila nahradit Cortex-A53 v\u00fdkonn\u011bj\u0161\u00edm j\u00e1drem Cortex-A72, co\u017e posunulo v\u00fdkon na novou \u00farove\u0148. D\u00e1le do\u0161lo k p\u0159echodu na LPDDR4 pam\u011b\u0165, kter\u00e1 ve srovn\u00e1n\u00ed s d\u0159\u00edve pou\u017e\u00edvanou LPDDR2 zaji\u0161\u0165uje trojn\u00e1sobn\u00e9 zv\u00fd\u0161en\u00ed propustnosti. V testech v\u00fdkonu nov\u00e1 deska p\u0159ed\u010d\u00ed p\u0159edchoz\u00ed model Raspberry Pi 3B+ 2-4kr\u00e1t.<\/p>\n

Mezi dal\u0161\u00ed v\u00fdznamn\u00e9 rozd\u00edly pat\u0159\u00ed zahrnut\u00ed \u0159adi\u010de PCI Express, dvou port\u016f USB 3.0 (plus dva porty USB 2.0) a dvou port\u016f Micro HDMI (d\u0159\u00edve byl pou\u017eit jeden standardn\u00ed HDMI), kter\u00e9 umo\u017e\u0148uj\u00ed p\u0159ipojen\u00ed dvou monitor\u016f s rozli\u0161en\u00edm 4K. Grafick\u00fd akceler\u00e1tor VideoCore VI byl zna\u010dn\u011b modernizov\u00e1n, podporuje OpenGL ES 3.0 a dok\u00e1\u017ee dek\u00f3dovat video H.265 v kvalit\u011b 4Kp60 (nebo 4Kp30 na dvou monitorech). Nap\u00e1jen\u00ed m\u016f\u017ee b\u00fdt dod\u00e1v\u00e1no p\u0159es port USB-C (d\u0159\u00edve byl pou\u017eit USB micro-B), p\u0159es GPIO nebo p\u0159es dal\u0161\u00ed modul<\/a><\/noindex> PoE HAT (Power over Ethernet).<\/p>\n

Krom\u011b toho byla vy\u0159e\u0161ena dlouh\u00e1 doba trvaj\u00edc\u00ed ot\u00e1zka nedostate\u010dn\u00e9 velikosti opera\u010dn\u00ed pam\u011bti \u2014 deska je nyn\u00ed nab\u00edzena v variant\u00e1ch s 1, 2 a 4 GB RAM (ceny odpov\u00eddaj\u00ed 35, 45 a 55 USD), co\u017e \u010din\u00ed novou desku vhodn\u00fdm \u0159e\u0161en\u00edm pro vytv\u00e1\u0159en\u00ed pracovn\u00edch stanic, hern\u00edch platforem, server\u016f, br\u00e1ny pro chytrou dom\u00e1cnost, \u0159\u00eddic\u00edch jednotek robot\u016f a modern\u00edch multimedi\u00e1ln\u00edch syst\u00e9m\u016f. <\/p>\n

Vylep\u0161en\u00fd gigabitov\u00fd Ethernetov\u00fd \u0159adi\u010d, kter\u00fd je nyn\u00ed p\u0159ipojen k SoC p\u0159es samostatnou sb\u011brnici RGMII, co\u017e umo\u017e\u0148uje dos\u00e1hnout pln\u00e9 deklarovan\u00e9 v\u00fdkonnosti. USB je nyn\u00ed implementov\u00e1no p\u0159es samostatn\u00fd \u0159adi\u010d VLI, p\u0159ipojen\u00fd p\u0159es PCI Express a poskytuj\u00edc\u00ed celkovou \u0161\u00ed\u0159ku p\u00e1sma 4Gbps. Deska je, jako d\u0159\u00edve, vybavena 40 GPIO porty, DSI (p\u0159ipojen\u00ed dotykov\u00e9 obrazovky), CSI (p\u0159ipojen\u00ed kamery) a bezdr\u00e1tov\u00fdm \u010dipem podporuj\u00edc\u00edm standard 802.11ac s prac\u00ed na frekvenc\u00edch 2.4GHz a 5GHz a Bluetooth 5.0.<\/p>\n

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

Sou\u010dasn\u011b byl vyd\u00e1n nov\u00fd release distribuce Raspbian<\/a><\/noindex>, ve kter\u00e9m je zaji\u0161t\u011bna pln\u00e1 podpora Raspberry Pi 4. Vyd\u00e1n\u00ed je tak\u00e9 pozoruhodn\u00e9 p\u0159echodem na bal\u00ed\u010dkovou z\u00e1kladnu Debian 10 \u201eBuster\u201c (d\u0159\u00edve se pou\u017e\u00edval Debian 9), v\u00fdznamnou reviz\u00ed u\u017eivatelsk\u00e9ho rozhran\u00ed a nasazen\u00edm nov\u00e9ho ovlada\u010de Mesa V3D s podstatn\u011b vylep\u0161enou podporou 3D (v\u010detn\u011b dostupnosti OpenGL pro akceleraci prohl\u00ed\u017ee\u010de). Pro sta\u017een\u00ed jsou p\u0159ipraveny dv\u011b sestaven\u00ed \u2014 zkr\u00e1cen\u00e1 (406 MB<\/a><\/noindex>) pro serverov\u00e9 syst\u00e9my a pln\u00e1 (1.1 GB<\/a><\/noindex>), dod\u00e1van\u00e1 s u\u017eivatelsk\u00fdm prost\u0159ed\u00edm PIXEL<\/a><\/noindex> (odvozen\u00e9ho od LXDE). Pro instalaci z repozit\u00e1\u0159\u016f<\/a><\/noindex> je k dispozici p\u0159ibli\u017en\u011b 35 000 bal\u00ed\u010dk\u016f. <\/p>\n

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

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

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

\u0421\u043f\u0443\u0441\u0442\u044f \u0442\u0440\u0438 \u0441 \u043f\u043e\u043b\u043e\u0432\u0438\u043d\u043e\u0439 \u0433\u043e\u0434\u0430 \u0441 \u043c\u043e\u043c\u0435\u043d\u0442\u0430 \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f Raspberry Pi 3 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u044f Raspberry Pi Foundation \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b\u0430 \u043d\u043e\u0432\u043e\u0435 \u043f\u043e\u043a\u043e\u043b\u0435\u043d\u0438\u0439 \u043f\u043b\u0430\u0442 Raspberry Pi 4. \u0414\u043b\u044f \u0437\u0430\u043a\u0430\u0437\u0430 \u0443\u0436\u0435 \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u0430 \u043c\u043e\u0434\u0435\u043b\u044c «B», \u043e\u0441\u043d\u0430\u0449\u0451\u043d\u043d\u0430\u044f \u043d\u043e\u0432\u044b\u043c SoC BCM2711, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u0441\u043e\u0431\u043e\u0439 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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\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\udd47P\u0159edstavena deska Raspberry Pi 4 | ProHoster","description":"Po t\u0159ech a p\u016fl letech od vzniku Raspberry Pi 3 organizace Raspberry Pi Foundation","canonical_url":"https:\/\/prohoster.info\/cs\/blog\/news\/predstavlena-plata-raspberry-pi-4","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"cs_CZ","og:site_name":"ProHoster | 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