Ka'ina Hana ARM Cortex A7: nā kiko'ī a me nā hō'ike

ARM Cortex A7 . Ma kēia 'atikala e kamaʻilio pū mākou e pili ana i ka lima Cortex A7 unu lawelawe kuhikuhipuʻuone. 'O nā huahana Semiconductor e pili ana i ia mea e loa'a i nā smartphones, nā'alihini, nā papa pāleka a me nā mea'ēhana'ē a'e, kahi o ka wā i noho mau nei i nā kūlana ki'eki'e ma kēia māhele o ka makeke. I kēia manawa, ua ho'ololi hou'ia e nā ho'ololi hou hou a me nā hou hou.

'Ike pōkole e pili ana i ka hui pū'ulu

началась в 1990 году, когда она была основана Робином Саксби. Mōʻaukala o ka lima poe i hoomaka ai i ka 1990, ka wā e, ua hookumuia oia e Robin Saxby. 'O ke kumu o kona hana'ia'ana he hana polokalamu microprocessor hou. , то после образования данной компании появилась достойная альтернатива в виде RISC. Mua i ka Hoʻohakuʻoihana ma luna o ka x86 CPU market noho ai CISC, ma hope o ka ho okumu ana o ka ahakanaka ikea me ka pono koho i RISC. I ka hihia mua, ua ho'ēmi'ia ka ho'okō'ana o ke code program i nā papapae 4:

1. Ka loa'a'ana o nā kuhikuhi mīkini.

2. Ke hana'ana i kahi ho'ololi microcode.

3. Ke loa'a'ana o nā kuhikuhi lewa.

4. Ke ho'ohua i kēlā me kēia mākaukau o nā leka uila.

сновная же идея архитектуры RIS С состояла в том, что обработку программного кода можно свести к 2 этапам: Ili ia manaʻo RIS kuhikuhipuʻuone oia i ka nui, e hoike ana i ka aaioee o ka? Ia? Aiiu kuhi hiki e ua hoʻoʻuluʻulu manaʻo i loko o 2 kahua o ka hoʻonaʻauao.

1. RISC- инструкций. Awina RISC- ao.

2. RISC- инструкций. RISC- aaioee kuhikuhi.

ак в первом, так и во втором случае есть как плюсы, так и существенные недостатки. E like me ka mea mua, a ma ka hihia'elua, aia nā mālā a me nā hanana hoihoi nui. RISC ( в том числе и ARM Cortex A7 , представленная 2011 году) — рынок мобильных устройств. x86 ana lanakila 'o ia i ke kamepiula market, a me RISC (me lima Cortex A7, wahahee i ka 2011) - ka makeke no ka lawe lima manaʻo.

'O ka mo'aukala o ke'ano o ka pilina Cortex A7. Nā Ki'i Kū'oko'a

Ma ke'ano he kumu no "Cortex A7" hana "Cortex A8". 'O ka mana'o nui o nā mea ho'omohala ma kēia hihia,'o ka ho'onui'ana i ka hana a ho'omaika'i maika'i i ka maika'i o ka ikehu o ka hopena pūnaewele. . Ia ka mea e ho'ōla hiki mai, ka poe nā kānakaʻenehana lima. Kekahi pono ma keia hihia ua i ka ua i ka manawa e ho okumu big.LITTLE CPU enehana he. 'O ia ke'ano,'o ka crystal crystal semiconductor hiki ke komo i nā modula pūnaewele. Ho'oholo kekahi o lākou i ka ho'oponopono'ana i nā pilikia ma'alahi me ka li'ili'i o ka mana pono a, a ma ke'ano he kūlana, i kēia hana, ho'okani'ia nā kernels "Cortex A7". Ua hana'ia ka lua no ka holo'ana i ka pūnaewele ma'alahi a ua ho'okumu'ia ma nā papa ho'opili "Cortex A15" a i'ole "Cortex A17". Ua ho'olaha'ia'o "Cortex A7", e like me ka mea i'ike mua'ia ma mua, i ka makahiki 2011. Pono, ka mea mua unu lawelawe lima Cortex A7 i ka malamalama makahiki hope, oa i ka 2012.

'O ke kelehana hanahana

I ka ho'omaka, ua ho'okumu'ia nā huahana semiconductor e pili ana i ka A7 e like me nā papahana hanahana o 65 nm. I kēia manawa,'a'ole i mana'o'ia kēia'enehana. I ka wā e hiki mai ana, ua ho'oku'u'ia'elua mau hanauna hou o nā mea ho'olaha A7 i 40 nm a me 32 nm pae palekana. Akā ua lilo lākou i mea'ole. 'O nā'ōpili CPU hou loa e pili ana i kēia ho'olālā ua pa'a'ia i 28 nm, a hiki i ka loa'a'ana i ke kū'ai. Ho'ololi hou'ia ka ho'ololi'ana i nā hana hou'enehana hou me nā kūlana hou o ke komo'ana a me ka'oihana lō'ihi. 'O nā mokumoku i ho'onohonoho'ia i ka A7 e noho nei i ka māhele hapa nui o ka māhele makamepika pūnaewele a ua ho'ololi mālie'ia e nā'ike e pili ana i ka A53, e like me nā palena kūpono o ka ikehu,'oi a'e ka'oihana.

Ho'onohonoho o ke kikowaena microprocessor

1, 2, 4, ai'ole 8 mau kukui hiki ke ho'olilo i kahi o ka CPU e pili ana i ka ARM Cortex A7. Ano o nā unu lawelawe i loko o ka hope hihia, ka hōʻike i ka 'ole o ka? Inoaia eʻano nui 2 i 4 huhui waina a lākou nucleus. 2-3 makahiki, ua ho'okumu'ia nā mea ho'okomo i ka papa hana i nā'āpana me nā'ōwili a 1 a 2 paha. Ua ho'ohana'ia ka'ilikai ma'amau e nā 4-nuclear solutions. 'O ka'āpana ha'awina no 8 mau mākia. 'O kēlā me kēia memikumu pūnaewele ma luna o kēia hale hana e ho'okomo i nā modula nei:

• лок обработки чисел с плавающей запятой ( FPU). B laka aaioee lana wahi (FPU).

• Palekana Level 1.

• NEON для оптимизации работы ЦПУ. Neon pa alima e hoʻoikaika i ka CPU.

• ARMv7. ARMv7 Me Module.

Eia kekahi mau'ao'ao ma'amau no nā koina a pau ma ka PPU:

• Ahu hoʻokoe L2.

• Nuclei Na Makuahine pa alima CoreSight.

• Ka mana o ka AMVA palapala ma'amau me kahi'ano iki o nā 128 bits.

'O nā palena hiki'ole

'O ka lō'ihi o ke kau uaki no kahi ho'olālā microprocessor i hā'awi'ia e like paha me 600 MHz a 3 GHz. Pono'oe e'ike'ia e ho'ololi nei kēia pae, e hō'ike ana i ka hopena'oi o ka hana o ka pūnaewele kamepiula. A laila ua ho'opili pinepine'ia ke alapine e nā kumu'ekolu:

• Ke kumu o ka ma'alahi o ka hana.

• 'O ke ka'ina o ka optimization software no multithreading.

• 'O ke kumu kū'ai o ka mahana o kahi'ele'ele semiconductor.

E like me ke'ano, e no'ono'o i ka algorithm o ka pu'u MT6582, i ho'onohonoho'ia ma A7 a me 4 pūnaehana pūnaewele,'o ke kuhi like'ole mai 600 MHz a 1.3 GHz. Ma ke'ano palekana, hiki i kēia pūnaewele hana ho'okahi ho'okahi'āpana o ka helu'ana, a ke ho'ohana nei ia i ke alapine kūpono o 600 MHz. 'O kekahi'ano kūlike e like me kahi e ho'okumu'ia ai ke noi ma'alahi ma kahi kelepona pūnaewele. Akā i ka wā e'ike'ia kahi mea ha'awina waiwai nui me ka optimization no ka multithreading ma ka papa'oihana, e ho'omaka ana nā'ōnaehana 4 a pau o ka ho'oponopono i ka code program ma 1.3 GHz i ka hana. I ka ho'omehana'ana o ka PPU, e ho'oha'aha'a ke kukui uila i ke alapine a i'ole e pa'i. Ma kekahi'ao'ao,'o kēia ala e hō'oia i ka pono o ka pono, a ma kekahi'ao'ao - kahi'āpono o ka wikiwiki.

Ka ho'omana'o cache

'Elua wale nō nā'oko'a palekana i hā'awi'ia ma ka ARM Cortex A7. Ano o ka mea uholo uila inoaia, ma ka huli, kuhi ana i ka mea i ka mea mua 'ilikai ua OAXA māheleʻia i loko o 2 like halves. должна хранить данные, а другая — инструкции. Kekahi o ia mea, e hoahu i ka 'ikepili, a me ka mea' ē aʻe - na kuhikuhi. азмер кеша на 1-ом уровне по спецификациям может быть равен 64 Кб. Summary pa Ana ahu hoʻokoe 1st ilikai hoakaka paha e like me 64 KB. A laila, loa'a iā mākou 32 KB no nā'ikepili a me 32 KB no ke code. е ть от конкретной модели ЦПУ. Ahu hoʻokoe level up 2 i loko o keia hihia, e e kalele iho ma luna o ka CPU Ke Ana Hoʻohālike pakahi e ka. 'O ka li'ili'i loa o ia mea he hiki iā 0 MB ('o ia ho'i,'a'ohe), a'o ka nui loa - 4 MB.

'O ka mea ho'oponopono o ka ho'omana'o hana. 'O kona mau hi'ohi'ona

Ho'onohonoho'ia ka mea ho'omana'o pūnaewele i loko o kēia pūnaewele MANM Cortex A7. Nā'ano oaoieei-kuka hōʻike 'ana i ka mea, ua papahana e hana i loko o ka huipūʻana me ka hipa kāne LPDDR3 hae. 'O ka mana'o loiloi hana e like me ka 1066 MHz a 1333 MHz paha. 'O ka nui o ka RAM, hiki ke loa'a i ka hana, no ka mea i hā'awi'ia he'ōnaehana 2 GB.

Nā ki'i ho'ohui like

E like me ka mea i mana'o'ia,'o kēia mau polokalamu microprocessor he'ōnaehana ho'ohui ki'i ho'ohui. рекомендует использовать в сочетании с этим ЦПУ графическую карту собственной разработки Mali - 400MP2 . ? Iecaianoaaiiuo poʻe lima ia kekahi e hana i loko o ka huipūʻana me ka CPU kiʻi kāleka Mali ka iho 'ana - 400MP2. Akā,'a'ole lawa ka hana'ana i ka wehe'ana i ka mana o kahi polokalamu microprocessor. No ia mea, inoaia haku polokalamu hoʻohana i hoʻohui pū 'ia me ka nui efficient? Inoaia kāleka, no kekahi laʻana, Power VR6200.

Nā Pūnaewele Pūnaewele

Ekolu ano o ka pae'ōnaehana nenoai ua pahuna ma ka lima nā unu lawelawe.

• от поискового гиганта Google. Android mai huli nunui Google.

• от APPLE. IOS mai APPLE.

• от «Майкрософт». Windows Mobile mai ka "Microsoft".

'A'ole i loa'a nui ka hā'awi'ana i nā pono o nā lakohana pūnaewele. Ka nui loa kaʻana like i loko o ka makeke o ka lako polokalamu mea,ʻaʻole paʻakikī, e koho, ia ai Android. 'O kēia'ōnaehana he'ōnaehana kūmālie a'ike pono'ole ia, a'o nā pūnaewele hō'ailona ka mea nui loa. Ma mua o ka 4.4 4.4, he 32-bit, a me ka 5.0 i ho'omaka e kāko'o i ka helu 64-bit. , в том числе и ARM Cortex A7. Kēia pae'ōnaehana'ōnaehana ua ana functioning i loko o kekahi 'ohana CPU kuhikuhipuʻuone RISC, a me ka lima Cortex A7. 'O ka'enekeneke menu kekahi'ano nui o kēia pūnaewele pūnaewele. Me kona kōkua, hiki iā'oe ke ho'omaopopo hou i nā mana o ka OS. Hiki ke loa'a iā'oe ka hō'ailona ma ka ho'ohana'ana i ke code, a no kēlā me kēia'ōkohu o ka CPU kekahi.

'O kekahi'ano ko'iko'i o kēia OS'o ia ke kau'ana o nā loli kūpono a pau. No laila, hiki i nā hi'ohi'ona hou ke'ike ma nā'āpana o ka'ohana ARM Cortex A7. Hiki i nā kuhūlū ke ho'ohui. Ka lua o ka'ōnaehana ua pahuna i lawe lima nā Hāmeʻa poʻe APPLE. 'O nā'ano o ia mau polokalamu e ho'ohana i ka māhele ha'awina a loa'a i nā'ano o ka wikiwiki a me ka uku. пока не получила большого распространения. Latest OS Windows Mobile maka i ole i loaa ākea o ka makana. 'O nā pūnaewele i ho'onohonoho'ia ma ia mau mea aia i loko o kēlā me kēia māhele o nā mea hana polokalamu kelepona, akā, eia kahi'āpana pono o nā pono hana i loko o kēia hihia he mea ke'ake'a i kona mahele.

Ho'omākaukau Hana

'O ka mea'oi aku i'oi aku ka uku a me ka waiwai nui loa i kēia hihia, he mau pu'upu'u 1-nui. 'O ka lehulehu i waena o lākou'o MT6571 mai ka hui MediaTek. Ma ka'anu'u i luna nei he mau'ualua CPU ARM Cortex A7 Dual Core. Eia kekahi la'ana, hiki iā'oe ke lawe mai i MT6572 mai nā mea hana like'ole. Ua ho'onui'ia ke'ano o ka hana e Quad Core ARM Cortex A7. 'O MT6582 ka mea i kaulana loa mai kēia'ohana, a hiki i kēia manawa ke'ike'ia ma nā polokalamu kele pūnaewele o ka pae komo. Ua pono, o ka nui nui o ka hana nae i ka 8-kāna mau 'ōlelo CPUs, i pili i ka 6595 HI.

Ho'onui'ia nā manaolana

No kēia manawa, hiki iā'oe ke hālāwai i nā papa o nā'ōnaehana pūnaewele e pili ana i ka'ōnaehana semiconductor e pili ana i ka 4X ARM Cortex A7. 'O kēia a me MT6580, MT6582 a me Snapdragon 200. 'O kēia mau mākī a pau he 4 pūnaehana ho'okumu a loa'a kahi kūlana maika'i loa o ka pono. 'O nā kumukū'ai ho'i i kēia hihia he'ano li'ili'i loa. Akā'o ka manawa maika'i loa o kēia ho'olālā microprocessor e hala nei. 'O ka nui o ka kū'ai'ana i nā huahana i hā'ule'ia ma ka makahiki 2013-2014, i ka wā e kū'ai'ia ai ka mākeke no nā ki'i polokalamu kelepona,'a'ohe mea'oko'a. A i kēia manawa, ke kama'ilio nei mākou e pili ana i nā polokalamu pūnaewele me ho'okahi a'elua mau modula pūnaewele, a me nā pūnaewele hō'ailona me kahi CPU 8-core. I kēia manawa, ho'ololi iki ia i ka māhele "Cortex A53", he'ano 64-bit'oi a'e o ka A7. Ma ka manawa like, nā mea nui o ka mea mua, ua mālama pa'a loa'ia, a'o ka hopena ma hope loa.

Ka mana'o o nā mea akamai a me nā mea ho'ohana. 'O ka mana'o maika'i ma nā'āpana pili i kēia hale hana. Nā ikaika a me nā nāwaliwali

'Oiai,'o kahi hanana nui no ka honua o nā polokalamu kelepona pūnaewele ka puka mai o ka ho'olālā'ana o nā mea polokalamu microprocessor ARM Cortex A7. 'O ka hō'ailona maika'i loa o kēia,'o ia nā mea i ho'onohonoho pono'ia ma ka papahana ua kū'ai'ia ma mua no 5 mau makahiki. 'Oiai, inā'a'ole lawa kēia kaha o ka CPU no A7 i ka ho'oholo'ana i nā pilikia waena waena, akā ma kēia'ano, ke hana nei ka papahana polokalamu'oi loa o nā polokalamu i ka lā. 'O ka papa inoa o ia'ano pūnaewele,'o ia nō ka pā'ani wikiō, e ho'olohe ana i nā leo leo, heluhelu heluhelu, ka he'enalu pūnaewele a me nā mea hana ma'alahi loa ma kēia hihia e hāpai'ia me ka'ole o nā pilikia. 'O kēia ma kēia a ke nānā aku nei i nā alaka'i o nā pūnaewele, i ho'ola'a'ia i nā mea hana ki'i a me nā polokalamu kelepona e like me nā luna alaka'i o kēia kumumana'o, a me nā mea ho'ohana ma'amau. 'O ka hemahema nui o A7 ka nele i ke kāko'o no ka helu 64-bit. 'O nā mea nui o ia mea, hiki ke pili i ka hui kūpono o ka pono a me ka huahana.

Nā hualoa'a

это целая эпоха в мире мобильных устройств. O ka holo ana, ke kuhikuhipuʻuone o lima Cortex A7 - he a pau au i loko o ke ao o ka lawe lima manaʻo. Me ka hiki'ana mai o nā'ōnaehana polokalamu kelepona a'oi aku ka waiwai. A'o kekahi'oia'i'o ua kū'ai pono'ia i'oi aku ma mua o 5 mau makahiki,'o ia ka hō'oia o kēia. Akā, inā i ka ho'omaka'ana o nā kālepa ma kona kumuhana e noho'ia e ka māhele a me nā'āpana kālā o ka mākeke, i kēia manawa aia wale nō ka papa kālā. Ua loloa kēia hale hana a lilo i mea ma'amau.