MIPI Lub Koob Yees Duab vs USB Lub Koob Yees Duab
Ob peb xyoos dhau los no, lub zeem muag pom tau hloov zuj zus los ntawm lo lus buzz mus rau cov cuab yeej siv dav dav siv thoob plaws hauv kev lag luam, kev kho mob, khw muag khoom, kev lom zem, thiab kev ua liaj ua teb. Nrog rau txhua theem ntawm nws cov evolution, embedded lub zeem muag tau ua kom muaj kev loj hlob tseem ceeb ntawm cov koob yees duab interfaces muaj los xaiv. Txawm li cas los xij, txawm hais tias muaj kev nce qib thev naus laus zis, MIPI thiab USB interfaces tseem yog ob hom nrov tshaj plaws rau feem ntau ntawm cov ntawv pom kev pom.
MIPI interface
MIPI (Mobile Industry Processor Interface) yog tus qauv qhib thiab cov lus qhia tshwj xeeb tau pib los ntawm MIPI Alliance rau mobile application processors.MIPI koob yees duab modulesfeem ntau pom muaj nyob rau hauv cov xov tooj ntawm tes thiab ntsiav tshuaj, thiab txhawb kev daws teeb meem siab tshaj 5 lab pixels. MIPI tau muab faib ua MIPI DSI thiab MIPI CSI, uas sib haum rau cov duab tso tawm video thiab cov qauv kev tawm tswv yim video, feem. Tam sim no, MIPI lub koob yees duab modules tau siv dav hauv lwm cov khoom siv kos, xws li smartphones, tsav tsheb recorders, tub ceev xwm lub koob yees duab, high-txhais micro koob yees duab, thiab network soj ntsuam lub koob yees duab.
MIPI Display Serial Interface (MIPI DSI ®) txhais tau hais tias qhov kev sib txuas ceev ceev ntawm tus tswv tsev processor thiab cov zaub module. Lub interface ua rau cov tuam txhab lag luam sib koom ua ke cov lus qhia rau kev ua haujlwm siab, kev siv hluav taws xob tsawg, thiab tsis tshua muaj hluav taws xob cuam tshuam (EMI), thaum txo tus lej suav thiab tswj kev sib raug zoo ntawm cov neeg muag khoom sib txawv. Cov neeg tsim qauv siv tau MIPI DSI los muab cov xim ci ntsa iab rau cov duab xav tau tshaj plaws thiab cov xwm txheej video thiab txhawb kev sib kis ntawm cov ntsiab lus stereoscopic.
MIPI yog qhov feem ntau siv interface nyob rau niaj hnub no kev ua lag luam rau point-to-point duab thiab video kis tau tus mob ntawm lub koob yees duab thiab tus tswv tsev pab kiag li lawm. Nws tuaj yeem raug ntaus nqi rau MIPI qhov yooj yim ntawm kev siv thiab nws lub peev xwm los txhawb ntau yam kev ua haujlwm siab. Nws kuj los nruab nrog cov yam ntxwv muaj zog xws li 1080p, 4K, 8K thiab tshaj video thiab cov duab daws teeb meem siab.
MIPI interface yog qhov kev xaiv zoo tshaj plaws rau cov ntawv thov xws li head-mounted virtual reality devices, smart traffic applications, gesture recognition systems, drones, face recognition, security, surveillance systems, etc.
MIPI CSI-2 Interface
MIPI CSI-2 (MIPI Lub Koob Yees Duab Serial Interface 2nd Generation) tus qauv yog qhov ua tau zoo, siv tau zoo, thiab yooj yim-rau-siv interface. MIPI CSI-2 muaj qhov siab tshaj plaws bandwidth ntawm 10 Gb / s nrog plaub txoj kab cov ntaub ntawv - txhua txoj kab muaj peev xwm hloov cov ntaub ntawv mus txog 2.5 Gb / s. MIPI CSI-2 sai dua USB 3.0 thiab muaj cov txheej txheem txhim khu kev qha los daws cov vis dis aus los ntawm 1080p txog 8K thiab tshaj. Tsis tas li ntawd, vim nws cov nyiaj siv ua haujlwm qis, MIPI CSI-2 muaj ntau dua net duab bandwidth.
MIPI CSI-2 interface siv tsawg dua cov peev txheej los ntawm CPU - ua tsaug rau nws cov txheej txheem ntau yam. Nws yog lub koob yees duab default interface rau Raspberry Pi thiab Jetson Nano. Raspberry Pi lub koob yees duab module V1 thiab V2 kuj yog raws li nws.
Kev txwv ntawm MIPI CSI-2 Interface
Txawm hais tias nws yog qhov muaj zog thiab nrov interface, MIPI CSI tuaj nrog qee qhov kev txwv. Piv txwv li, MIPI koob yees duab cia siab rau cov tsav tsheb ntxiv los ua haujlwm. Nws txhais tau hais tias tsis muaj kev txhawb nqa rau cov duab sib txawv tshwj tsis yog cov tuam txhab tsim cov kab ke tiag tiag thawb rau nws!
Qhov zoo ntawm MIPI:
MIPI interface muaj cov kab teeb liab tsawg dua li DVP interface. Vim hais tias nws yog ib tug tsawg-voltage txawv teeb liab, qhov cuam tshuam generated yog me me, thiab muaj peev xwm tiv thaiv kev cuam tshuam kuj muaj zog. 800W thiab siab dua tag nrho siv MIPI interface. Lub koob yees duab smartphone interface siv MIPI.
Nws ua haujlwm li cas?
Feem ntau, lub rooj tsav xwm ultra-compact hauv lub zeem muag txhawb nqa MIPI CSI-2 thiab ua haujlwm nrog ntau yam kev txawj ntse sensor daws teeb meem. Ntxiv mus, nws yog sib xws nrog ntau yam sib txawv CPU boards.
MIPI CSI-2 txhawb nqa MIPI D-PHY lub cev txheej txheej los sib txuas lus rau daim ntawv thov processor lossis System ntawm Chip (SoC). Nws tuaj yeem siv rau ntawm ob lub cev txheej: MIPI C-PHY℠ v2.0 lossis MIPI D-PHY℠ v2.5. Yog li ntawd, nws txoj kev ua tau zoo yog txoj kab-scalable.
Hauv MIPI lub koob yees duab, lub koob yees duab sensor ntes thiab xa cov duab mus rau CSI-2 tus tswv. Thaum cov duab raug xa mus, nws muab tso rau hauv lub cim xeeb raws li tus kheej thav duab. Txhua tus ncej yog kis los ntawm cov channel virtual. Txhua channel yog ces muab faib ua kab - kis ib zaug. Li no, nws tso cai ua tiav cov duab xa tawm los ntawm tib lub duab sensor - tab sis nrog ntau pixel ntws.
MIPI CSI-2 siv cov pob ntawv rau kev sib txuas lus uas suav nrog cov ntaub ntawv hom thiab kev kho qhov yuam kev (ECC) ua haujlwm. Ib pob ntawv taug kev los ntawm D-PHY txheej thiab tom qab ntawd faib rau hauv cov ntaub ntawv xav tau. D-PHY ua haujlwm nyob rau hauv high-speed hom thiab xa cov pob ntawv mus rau lub receiver los ntawm cov channel.
Tom qab ntawd, CSI-2 receiver yog muab nrog D-PHY lub cev txheej txheej los rho tawm thiab txiav txim siab lub pob ntawv. Cov txheej txheem rov ua dua los ntawm thav duab los ntawm CSI-2 ntaus ntawv mus rau tus tswv tsev los ntawm kev siv tau zoo thiab tus nqi qis.
USB interface
CovUSB interfacenyhav los ua kev sib tshuam ntawm ob lub tshuab - lub koob yees duab thiab PC. Txij li thaum nws paub zoo txog nws lub peev xwm plug-and-play, xaiv USB interface txhais tau hais tias koj tuaj yeem hais lus zoo rau kim, kos-tawm kev tsim kho lub sijhawm thiab cov nqi rau koj qhov kev pom kev sib cuam tshuam. USB 2.0, qhov qub version, muaj cov kev txwv tseem ceeb. Raws li thev naus laus zis pib dwindle, ntau ntawm nws cov khoom ua tsis sib xws. USB 3.0 thiab USB 3.1 Gen 1 interfaces tau tsim los kov yeej cov kev txwv ntawm USB 2.0 Interface.
Lub USB 3.0 (thiab USB 3.1 Gen 1) interface ua ke cov yam ntxwv zoo ntawm kev sib txawv. Cov no suav nrog plug-and-play compatibility thiab qis CPU load. Lub zeem muag kev lag luam tus qauv ntawm USB 3.0 kuj ua rau nws muaj kev ntseeg siab rau cov koob yees duab siab thiab ceev ceev.
Nws yuav tsum muaj tsawg kawg nkaus kho vajtse ntxiv thiab txhawb qis bandwidth - txog li 40 megabytes ib ob. Nws muaj qhov siab tshaj plaws bandwidth ntawm 480 megabytes ib ob. Qhov no yog 10 npaug sai dua USB 2.0 thiab 4 npaug sai dua GigE! Nws lub peev xwm ntsaws-thiab-ua si ua kom ntseeg tau tias cov khoom siv tsis pom kev tuaj yeem hloov pauv tau yooj yim - ua kom yooj yim los hloov lub koob yees duab puas.
Kev txwv ntawm USB 3.0 Interface
Qhov loj tshaj qhov tsis zoo ntawm covUSB 3.0interface yog tias koj tsis tuaj yeem khiav cov kev daws teeb meem siab ntawm kev kub ceev. Lwm qhov kev poob qis yog tias koj tsuas tuaj yeem siv lub cable mus txog qhov deb ntawm 5 meters ntawm tus tswv tsev processor. Thaum cov cables ntev dua, lawv txhua tus haum nrog "boosters". Yuav ua li cas cov cables ua haujlwm ua ke nrog cov koob yees duab kev lag luam yuav tsum tau kuaj xyuas txhua tus neeg mob.
Post lub sij hawm: Mar-22-2023
