Ukubuka Konke Kwezinguquko Ku-USB Interfaces

Ukubuka Konke Kwezinguquko Ku-USB Interfaces

Phakathi kwazo, indinganiso yakamuva ye-USB4 (njenge-USB4 Cable, i-USBC4 To USB C) okwamanje isekela kuphela izixhumi zohlobo lwe-C. Okwamanje, i-USB4 iyahambisana nezixhumi/amaphrothokholi amaningi kufaka phakathi i-Thunderbolt 3 (40Gbps Data), i-USB, i-Display Port, kanye ne-PCIe. Izici zayo zokusekela ukunikezwa kwamandla kwekhebula le-5A 100W USB C kanye nokudluliswa kwedatha ye-USB C 10Gbps (noma i-USB 3.1 Gen 2) kubeka isisekelo sokwenziwa kwaziwe kabanzi.

Ukubuka konke kohlobo-A/Uhlobo-B, i-Mini-A/Mini-B, kanye ne-Micro-A/Micro-B

1) Izici Zikagesi Zohlobo-A kanye Nohlobo-B
I-pinout ihlanganisa i-VBUS (5V), i-D-, i-D+, kanye ne-GND. Ngenxa yokusebenzisa ukudluliswa kwesignali ehlukile, ukwakheka kokuxhumana kwe-USB 3.0 A Male kanye ne-USB 3.1 Type A kubeka phambili ukuxhumana kwamandla (i-VBUS/GND inde), kulandelwe yimigqa yedatha (i-D-/D+ imfushane).
2) Izici Zikagesi ze-Mini-A/Mini-B kanye ne-Micro-A/Micro-B
I-Mini USB kanye ne-Micro USB (njenge-USB3.1 Micro B TO A) zinezixhumanisi ezinhlanu: i-VCC (5V), i-D-, i-D+, i-ID, kanye ne-GND. Uma kuqhathaniswa ne-USB 2.0, kunomugqa we-ID owengeziwe owengeziwe ukusekela ukusebenza kwe-USB OTG.
3) I-USB OTG Interface (Ingasebenza njenge-HOST noma i-DEVICE)
I-USB ihlukaniswe nge-HOST (host) kanye ne-DEVICE (noma slave). Amanye amadivayisi angadinga ukusebenza njenge-HOST ngezinye izikhathi kanye ne-DEVICE ngezinye izikhathi. Ukuba nama-port amabili e-USB kungafeza lokhu, kodwa kuwukuchitha izinsiza. Uma i-port eyodwa ye-USB ingasebenza njenge-HOST kanye ne-DEVICE, kungaba lula kakhulu. Ngakho-ke, kwasungulwa i-USB OTG.
Manje kuphakama umbuzo: Isixhumi esibonakalayo se-USB OTG sazi kanjani ukuthi kufanele sisebenze njenge-HOST noma i-DEVICE? Umugqa wokuthola i-ID usetshenziselwa ukusebenza kwe-OTG (izinga eliphezulu noma eliphansi lomugqa we-ID libonisa ukuthi imbobo ye-USB isebenza kumodi ye-HOST noma ye-DEVICE).
I-ID = 1: Idivayisi ye-OTG isebenza kwimodi yesigqila.
I-ID = 0: Idivayisi ye-OTG isebenza kwimodi yokusingatha.
Ngokuvamile, izilawuli ze-USB ezihlanganiswe kuma-chip zisekela ukusebenza kwe-OTG futhi zinikeza isixhumi esibonakalayo se-USB OTG (esixhunywe kusilawuli se-USB) se-Mini USB noma i-Micro USB kanye nezinye izixhumi ezixhunywe kumugqa we-ID ozofakwa futhi usetshenziswe.

Uma kukhona i-Mini USB interface eyodwa kuphela (noma i-Micro USB interface), futhi uma ufuna ukusebenzisa imodi ye-OTG host, uzodinga ikhebula le-OTG. Isibonelo, ikhebula le-OTG le-Mini USB liboniswe ngezansi esithombeni: Njengoba ubona, ikhebula le-Mini USB OTG linomkhawulo owodwa njengesokhethi le-USB A kanti elinye icala njenge-Mini USB plug. Faka i-Mini USB plug ku-Mini USB OTG interface yomshini, futhi idivayisi ye-USB exhunyiwe kufanele ixhunywe ku-USB A socket ngakolunye uhlangothi. Isibonelo, i-USB flash drive. Ikhebula le-USB OTG lizokwehlisa umugqa we-ID, ukuze umshini wazi ukuthi kufanele usebenze njenge-host ukuxhuma kudivayisi yangaphandle eyisigqila (njenge-USB flash drive).