Bayani game da Canje-canje a cikin Haɗin USB

Bayani game da Canje-canje a cikin Haɗin USB

Daga cikinsu, sabuwar ƙa'idar USB4 (kamar kebul na USB4, USBC4 Zuwa USB C) a halin yanzu tana goyan bayan hanyoyin sadarwa na Type-C ne kawai. A halin yanzu, USB4 yana dacewa da hanyoyin sadarwa/tsarin sadarwa da yawa ciki har da Thunderbolt 3 (40Gbps Data), USB, Display Port, da PCIe. Siffofinsa na tallafawa samar da wutar lantarki ta kebul na USB C 5A 100W da watsa bayanai na USB C 10Gbps (ko USB 3.1 Gen 2) sun kafa harsashin yaɗuwa a manyan fannoni.

Bayani game da Nau'in A/Nau'in B, Mini-A/Mini-B, da Micro-A/Micro-B

1) Halayen Wutar Lantarki na Nau'in A da Nau'in B
Pinout ɗin ya haɗa da VBUS (5V), D-, D+, da GND. Saboda amfani da watsa siginar bambanci, ƙirar hulɗar USB 3.0 A Namiji da USB 3.1 Nau'in A yana ba da fifiko ga haɗin wutar lantarki (VBUS/GND sun fi tsayi), sai kuma layukan bayanai (D-/D+ sun fi guntu).
2) Halayen Wutar Lantarki na Mini-A/Mini-B da Micro-A/Micro-B
Ƙaramin USB da Micro USB (kamar USB3.1 Micro B TO A) suna da lambobi guda biyar: VCC (5V), D-, D+, ID, da GND. Idan aka kwatanta da USB 2.0, an ƙara ƙarin layin ID don tallafawa aikin USB OTG.
3) Haɗin USB OTG (Zai iya aiki azaman Mai masaukin baki ko Na'ura)
Ana raba USB zuwa HOST (host) da DEVICE (ko bawa). Wasu na'urori na iya buƙatar yin aiki a matsayin HOST a wasu lokutan kuma a matsayin DEVICE a wasu lokutan. Samun tashoshin USB guda biyu na iya cimma wannan, amma ɓatar da albarkatu ne. Idan tashar USB guda ɗaya za ta iya aiki a matsayin HOST da DEVICE, zai fi dacewa. Don haka, an ƙirƙiri OTG na USB.
Yanzu tambayar ta taso: Ta yaya kebul na USB OTG zai san ko ya kamata ya yi aiki a matsayin HOST ko DEVICE? Ana amfani da layin gano ID don aikin OTG (babban ko ƙaramin matakin layin ID yana nuna ko tashar USB tana aiki a yanayin HOST ko DEVICE).
ID = 1: Na'urar OTG tana aiki a yanayin bawa.
ID = 0: Na'urar OTG tana aiki a yanayin mai masaukin baki.
Gabaɗaya, masu sarrafa USB da aka haɗa a cikin kwakwalwan kwamfuta suna tallafawa aikin OTG kuma suna samar da hanyar sadarwa ta USB OTG (an haɗa ta da mai sarrafa USB) don Mini USB ko Micro USB da sauran hanyoyin sadarwa tare da layin ID da za a saka a yi amfani da su.

Idan akwai Mini USB interface ɗaya kawai (ko Micro USB interface), kuma idan kuna son amfani da yanayin OTG host, to kuna buƙatar kebul na OTG. Misali, kebul na OTG don Mini USB an nuna shi a ƙasa a cikin hoton: Kamar yadda kuke gani, kebul na Mini USB OTG yana da gefe ɗaya azaman soket na USB A da ɗayan ƙarshen azaman Mini USB plug. Saka Mini USB plug a cikin Mini USB OTG interface na na'urar, kuma na'urar USB da aka haɗa ya kamata a haɗa ta cikin soket na USB A a ɗayan ƙarshen. Misali, kebul na USB flash drive. Kebul na USB OTG zai rage layin ID, don haka na'urar ta san cewa ya kamata ta yi aiki a matsayin mai masaukin baki don haɗawa da na'urar bawa ta waje (kamar kebul na USB flash drive).