Njengoba wazi, kunezixhumi eziningi ezahlukahlukene kwibhodi lekhompyutha lekhompyutha lokuxhuma izingxenye ezihlangene nezishukunyiswayo. Kuwo wonke amachweba yi-USB 2.0 ne-USB 3.0, esebenza isinali kanye nokunikezwa kwamandla ezixhumi ezakhelwe ngaphakathi. Lezi zinguqulo ezimbili zihlukile hhayi kuphela ngezimpawu zobuchwepheshe, kodwa futhi zibuke amachweba ebhodini lomama. Esihlokweni sanamuhla, singathanda ukubahlakaza ngemininingwane eminingi.
Bheka futhi: Yini eyenza ibhodi lomama
Ekhomba izixhumi ze-USB 2.0 ne-USB 3.0 kubhodi lomama
Ngeshwa, akukho ukuqokwa okukodwa kwazo zonke imilenze noxhumana nabo bezixhumi, ngoba ubuchwepheshe bokukhiqizwa kwabo bungalinganiswa. Ngenxa yalokhu, isilinganiso singahluka kumodeli ngayinye yebhodi lomama. Esithombeni esingezansi, ubona isikhombisi esihleli sepulaki le-USB ngokuqokwa kombala koxhumana naye ngamunye. Kusuka kulezi zibonakaliso ezijwayelekile sokuthi sizoxoshwa ngokuhlaziywa okwengeziwe kwezixhumi ku-motherboard.
I-USB 2.0
Ake siqale nge-USB evamile engu-2.0. Akubona bonke abakhiqizi bezakhi ezifaka izixhumi ezintsha ze-USB 3.0 noma ezi-3.1 emabhodini abo, kepha okokufaka okuningana kwenguqulo yakudala engu-2.0 kumele kube khona ebhodini. I-pilout ibukeka ilula, ngoba into iyishumi kuphela noma imilenze yensimbi. Naka umzekeliso ongezansi. Kunokuqokwa okunemibandela kwabo bonke laba oxhumana nabo.
Manje ake siguquke siphenduke ngamunye wabo ukuze abasebenzisi be-novice abanankinga nokuqonda ukubonwa:
- 1 no-2____ babomvu futhi banama-5V, VCC noma amagama wamandla. Unesibopho sokuhlinzeka ngamandla;
- I-3 no-4 inikezwe okumhlophe futhi cishe yonke indawo ikhonjiswa njenge-D- - Oxhumana nabo ngokudluliswa kwedatha ngecala elibi;
- 5 no-6 ngombala oluhlaza, igama elingokomfanekiso D + - oxhumana nabo ngecala elifanele;
- 7, 8 no-10. Imvamisa, umhlaba uhlukaniswa emnyama, futhi igama lokuxhumana lihambelana ne-GND.
Ungaqaphela ukungabikho koxhumana naye wesishiyagalolunye. Akukhona, ngoba le ndawo isebenza njengesihluthulelo emcabangweni wokuxhuma kahle izintambo kusixhumi.
Ngemuva kokujwayela ukuhambisana nabo bonke othintana nabo, ungaxhuma izintambo kubo kuphela, unikezwe wonke amalebula akhonjisiwe. Ngasikhathi sinye, kufanele kubhekwe ama-polarity, ngoba akulona ize, kuphinde kuboniswe kwimidwebo yesikimu.
I-USB 3.0.
Uhlobo lwezixhumi ze-USB 3.0 zinamuhla, futhi ama-materboards amasha angaphezulu namancane anamachweba ambalwa okwakhelwe anjalo, nawo axhunywe ngoxhumana nabo abebelwe ngokukhethekile kulokhu. Ukwakheka kwaleli chweba kuyinkimbinkimbi ngokwengeziwe, ngoba inguqulo 3.0 inezici zezobuchwepheshe ezithuthukile futhi isekela ubuchwepheshe obusha.
Ngaphezulu kwakho wabona isikhombisi esicebile sesixhumi 3.0, sihlala kuphela ukuhlukanisa bonke othintana naye kwinguqulo yombhalo:
- 2. Oxhumana naye omusha obhekele ukuhlonza kuvame ukukhonjiswa yi-grey futhi une-ID yegama elingokomfanekiso;
- 1 no-4. I-Inta_p2_D + ne-Inta_p1_D +, ngokulandelana. Isikhonkwane esivele sijwayelekile sokudluliswa kwedatha ngecala elihle;
- I-3 no-6 ye-Inta_p2_d- ne-Inta_p1_D-. Kuqokonyiswe izintambo zokuhanjiswa ngocingo ngecala elibi;
- 5 no 8. Umhlaba, njengenjwayelo, umakwe nge-GND empunga nebhaliwe;
- 7 no-10. Omunye othintana nesibonakaliso sokuhlanganisa idatha nge-TX. I-7 inegama le-ITA_P2_SSTX +, nenombolo 10 - Inta_p1_SSTX +;
- 9 no-12. Okufanayo, kepha ngophawu lwe- "Minus" kanye nokwazisa kwe-Inta_p2_SSTX- ne-Inta_p1_SSTX-;
- 11 no-14: Umhlaba;
- 13 no-16. Ukuthola idatha ye-RX ngecala elifanele negama le-Inta_p2_SSRX + ne-Inta_p1_SSRX +;
- 15 no-18. I-RX CE iyisibonakaliso soMunu. Amagama - i-Inta_p2_SSRX ne-Inta_p1_SSRX-;
- 17 no-20. Kumakwe ngombala obomvu futhi unesibopho sokuhlinzeka ngamandla. Iba ne-vbus engokomfanekiso.
Njengasendabeni yesixhumi esedlule, othintana naye akekho, futhi le ndawo engenalutho isebenza njengesihluthulelo. Kule ndlela, alikho igumbi elineshumi nesishiyagalolunye. Ngaphezu kwalokho, ungabona ukwengezwa koxhumana nabo abasha ukudlulisa idatha ye-Rx ne-TX. Lesi sintu sisetshenziswa lapho sibonisa futhi sifaka imininingwane kwi-interface ye-serial futhi manje sekuyindinganiso ezinhlelweni ezifanayo.
I-adaptha nge-USB 2.0 kuya ku-3.0
Ngaphezulu ujwayelene ne-pilout yabo bonke oxhumana nabo kanye nencazelo eningilizayo yomunye wabo. Manje sifuna ukwethula umfanekiso omncane we-schematic wabasebenzisi abanesifiso sokuxhuma noma ukudala i-adaptha nge-USB 2.0 kuya ku-3.0. Ngeke sipendile ngokuningiliziwe umgomo wokudala uchungechunge olunjalo, ngoba lesi yisihloko sendatshana esehlukile. Noma kunjalo, isithombe esingezansi sizoba usizo lokubuka nosizo olwenza obani ekwakheni uhlelo olusha lokuxhumana.
Njengengxenye yalokhu okuqukethwe, sibheke ukuthunyelwa kwesixhumi se-USB ebhodini lomama. Uma unesifiso sokuhlaziywa okufanayo kwezinye izinto zekhompyutha, sikucebisa ukuthi ufunde izindatshana ngazinye ezixhumani ezilandelayo.
Bona futhi:
Ukuthengisa okupholile kwe-3-PIN
Ukuthengisa okupholile kwe-4-PIN
Ukukha isixhumi sebhodi somama