{"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\/it\/blog\/news\/predstavlena-plata-raspberry-pi-4","title":{"rendered":"\u00c8 stata presentata la scheda Raspberry Pi 4","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Dopo tre anni e mezzo dalla <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=43962\">creazione<\/a><\/noindex> Raspberry Pi 3 l'organizzazione Raspberry Pi Foundation <noindex><a rel=\"nofollow\" href=\"https:\/\/www.raspberrypi.org\/blog\/raspberry-pi-4-on-sale-now-from-35\/\">ha presentato<\/a><\/noindex> nuova generazione di schede <noindex><a rel=\"nofollow\" href=\"https:\/\/www.raspberrypi.org\/products\/raspberry-pi-4-model-b\/\">Raspberry Pi 4<\/a><\/noindex>. \u00c8 ora disponibile per l'ordine il modello &#171;B&#187;, <noindex><a rel=\"nofollow\" href=\"https:\/\/www.raspberrypi.org\/products\/raspberry-pi-4-model-b\/specifications\/\">dotato di<\/a><\/noindex> un nuovo SoC BCM2711, che \u00e8 una versione completamente riprogettata del chip BCM283X utilizzato in precedenza, prodotto con un processo tecnologico a 28nm. Il prezzo della scheda \u00e8 rimasto invariato ed \u00e8 di 35 dollari USA, proprio come prima. <\/p>\n<p>Il SoC include ancora quattro core ARMv8 a 64 bit e funziona a una frequenza leggermente aumentata (1.5GHz invece di 1.4GHz). Inoltre, il cambiamento del processo tecnologico ha permesso di sostituire il Cortex-A53 con un core Cortex-A72 pi\u00f9 potente, portando le prestazioni a un nuovo livello. \u00c8 stato anche effettuato un passaggio all'uso della memoria LPDDR4, che rispetto alla memoria LPDDR2 precedentemente utilizzata offre un aumento della larghezza di banda di tre volte. Di conseguenza, nei test delle prestazioni, la nuova scheda supera il precedente modello Raspberry Pi 3B+ da 2 a 4 volte.<\/p>\n<p>Tra le altre differenze significative, si segnala l'inclusione di un controllore PCI Express, due porte USB 3.0 (pi\u00f9 due porte USB 2.0) e due porte Micro HDMI (in precedenza era utilizzata un'HDMI di dimensioni normali), che consentono di collegare due monitor con qualit\u00e0 4K. L'unit\u00e0 grafica VideoCore VI \u00e8 stata notevolmente aggiornata, supporta OpenGL ES 3.0 e pu\u00f2 decodificare video H.265 con qualit\u00e0 4Kp60 (o 4Kp30 su due monitor). L'alimentazione pu\u00f2 essere fornita tramite la porta USB-C (in precedenza si usava USB micro-B), attraverso GPIO o tramite un modulo aggiuntivo <noindex><a rel=\"nofollow\" href=\"https:\/\/www.raspberrypi.org\/products\/poe-hat\/\">modulo<\/a><\/noindex> PoE HAT (Power over Ethernet).<\/p>\n<p>Inoltre, \u00e8 stata risolta una lunga problematica riguardo la quantit\u00e0 di memoria RAM, poich\u00e9 ora la scheda \u00e8 proposta in versioni con 1, 2 e 4 GB di RAM (costi rispettivamente $35, $45 e $55), rendendo la nuova scheda una soluzione adatta per workstation, piattaforme da gioco, server, gateway per la smart home, blocchi di controllo robotico e moderni sistemi multimediali. <\/p>\n<p>\u00c8 stato migliorato il controller Ethernet gigabit, che ora \u00e8 collegato al SoC tramite un bus RGMII separato, permettendo di raggiungere le prestazioni dichiarate. La USB \u00e8 ora gestita tramite un controller VLI separato, connesso tramite PCI Express, e offre una larghezza di banda complessiva di 4 Gbps. Come sempre, la scheda \u00e8 dotata di 40 GPIO, DSI (collegamento del touchscreen), CSI (collegamento della fotocamera) e di un chip di comunicazione senza fili che supporta lo standard 802.11ac, operando su frequenze di 2.4GHz e 5GHz e Bluetooth 5.0.<\/p>\n<p><center><noindex><a rel=\"nofollow\" href=\"https:\/\/www.raspberrypi.org\/homepage-9df4b\/static\/pi4-labelled@2x-0894491e6de97a282dde5a5010cc8b61.png\"><img decoding=\"async\" alt=\"\u00c8 stata presentata la scheda Raspberry Pi 4\" src=\"\/wp-content\/uploads\/ffe00b4f21b5e5605e1b87918d666dff.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/center><\/p>\n<p>Contemporaneamente \u00e8 stata pubblicata una nuova versione della distribuzione <noindex><a rel=\"nofollow\" href=\"https:\/\/www.raspberrypi.org\/downloads\/raspbian\/\">Raspbian<\/a><\/noindex>, che assicura il supporto completo per Raspberry Pi 4. Il rilascio \u00e8 notevole anche per la transizione alla base pacchettizzata Debian 10 &#171;Buster&#187; (precedentemente si usava Debian 9), una significativa riprogettazione dell'interfaccia utente e l'implementazione di un nuovo driver Mesa V3D con supporto 3D notevolmente migliorato (incluso l'uso di OpenGL per l'accelerazione del browser). Sono state preparate due build per il download \u2014 ridotta (<noindex><a rel=\"nofollow\" href=\"https:\/\/downloads.raspberrypi.org\/raspbian_lite_latest\">406 MB<\/a><\/noindex>) per i sistemi server e una completa (<noindex><a rel=\"nofollow\" href=\"https:\/\/downloads.raspberrypi.org\/raspbian_latest\">1.1 GB<\/a><\/noindex>), fornita con l'ambiente desktop <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=45238\">PIXEL<\/a><\/noindex> (una derivazione di LXDE). Per l'installazione ci sono  <noindex><a rel=\"nofollow\" href=\"http:\/\/archive.raspbian.org\/\">circa 35.000 pacchetti disponibili nei<\/a><\/noindex> repository. <\/p>\n<p><center><noindex><a rel=\"nofollow\" href=\"https:\/\/www.raspberrypi.org\/app\/uploads\/2019\/06\/2019-06-17-105819_1920x1080_scrot.png\"><img decoding=\"async\" alt=\"\u00c8 stata presentata la scheda Raspberry Pi 4\" src=\"\/wp-content\/uploads\/21ac79ab3e69987fd0e471bedabb3985.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/center><\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Fonte: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=50949\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\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 &#171;B&#187;, \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 \u043f\u043e\u043b\u043d\u043e\u0441\u0442\u044c\u044e \u043f\u0435\u0440\u0435\u0440\u0430\u0431\u043e\u0442\u0430\u043d\u043d\u044b\u0439 \u0432\u0430\u0440\u0438\u0430\u043d\u0442 \u0440\u0430\u043d\u0435\u0435 \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u043e\u0433\u043e \u0447\u0438\u043f\u0430 BCM283X, \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u043c\u044b\u0439 \u043f\u043e \u0442\u0435\u0445\u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0443 28nm. \u0426\u0435\u043d\u0430 \u043f\u043b\u0430\u0442\u044b \u043e\u0441\u0442\u0430\u043b\u0430\u0441\u044c \u043d\u0435\u0438\u0437\u043c\u0435\u043d\u043d\u043e\u0439 \u0438 \u043a\u0430\u043a \u0440\u0430\u043d\u044c\u0448\u0435 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 35 [&hellip;]<\/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<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\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\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link 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