Namuhla, amadivayisi amaningi enkumbulo ye-NAND yesimanjemanje asebenzisa uhlobo olusha lwezakhiwo lapho isixhumi esibonakalayo, isilawuli, nama-memory chips ahlanganiswa abe isendlalelo esisodwa esivamile senhlanganisela. Lesi sakhiwo sibiza ngokuthi i-monolithic.
Kuze kube muva nje, wonke amamemori khadi afana ne-SD, i-Sony MemoryStick, i-MMC namanye asebenzisa isakhiwo esilula “sakudala” esinezingxenye ezihlukene - isilawuli, ibhodi kanye ne-NAND memory chip kuphakheji ye-TSOP-48 noma ye-LGA-52. Ezimweni ezinjalo, inqubo yokutakula yayilula kakhulu - sachitha i-memory chip, sayifunda ku-PC-3000 Flash, futhi senza amalungiselelo afanayo nasesimweni samadrayivu e-USB avamile.
Kodwa-ke, kuthiwani uma imemori khadi yethu noma idivayisi ye-UFD inesakhiwo se-monolithic? Ungafinyelela kanjani futhi ufunde idatha kusuka ku-NAND memory chip?
Kulokhu, ukubeka nje, sidinga ukuthola othintana naye okhethekile ophumayo kwezobuchwepheshe phansi kwedivayisi yethu ye-monolithic, sisusa ukumbozwa kwayo kwalokhu.
Kodwa ngaphambi kokuba uqale ukubuyisela idatha kusuka kudivayisi ye-monolithic, kufanele sikuxwayise ukuthi inqubo yokunamathisela idivayisi ye-monolithic iyinkimbinkimbi futhi idinga amakhono amahle ensimbi yokunamathisela kanye nemishini ekhethekile. Uma ungakaze uzame ukudayisa idivayisi ye-monolithic ngaphambilini, sincoma ukuthi uzilolonge kumadivayisi abanikeli anedatha engadingekile. Isibonelo, ungase uthenge amadivaysi ambalwa nje ukuzijwayeza ukulungiselela nokunamathisela.
Ngezansi uhlu lwemishini edingekayo:
- I-microscope yekhwalithi ephezulu ene-2, 4 kanye no-8 izikhathi zokukhulisa.
- I-USB soldering iron enethiphu elincanyana kakhulu.
- Itheyiphu emaceleni amabili.
- Uketshezi olusebenzayo olusebenzayo.
- I-gel flux yabaphambili bebhola.
- Soldering isibhamu (isibonelo, Lukey 702).
- Rosin.
- Izinti zokhuni.
- Utshwala (75% isopropyl).
- Izintambo zethusi ezinobukhulu obungu-0,1 mm ezine-varnish insulation.
- I-sandpaper ye-Jeweler's (1000, 2000 kanye ne-2500 - inani eliphakeme kakhulu, okusanhlamvu okuncane).
- Ibhola lihola ngo-0,3 mm.
- Ama-Tweezers
- Isikali esicijile.
- Umdwebo we-pinout.
- Ibhodi le-adaptha le-PC-3000 Flash.
Uma zonke izinto zokusebenza sezilungile, inqubo ingaqala.
Okokuqala, ake sithathe idivayisi yethu ye-monolithic. Kulokhu kuba ikhadi elincane le-microSD. Sidinga ukuyilungisa etafuleni nge-tape enezinhlangothi ezimbili.
Ngemuva kwalokhu, sizoqala ukususa ungqimba lwenhlanganisela kusuka ngezansi. Lokhu kuzothatha isikhathi - udinga ukuba nesineke futhi uqaphele. Uma ulimaza isendlalelo sothintana naye, idatha ayikwazi ukutholwa!
Ake siqale nge-sandpaper enzima kakhulu, enosayizi omkhulu wokusanhlamvu - 1000 noma 1200.
Ngemva kokususa iningi le-coating, udinga ukushintshela ku-sandpaper encane - 2000.
Ekugcineni, lapho kuvela ungqimba lwethusi loxhumana nabo, udinga ukushintshela ku-sandpaper enhle kakhulu - 2500.
Uma konke kwenziwa ngendlela efanele, uzothola okuthile okufana nalokhu:
Esikhundleni se-sandpaper, ungasebenzisa ibhulashi elilandelayo le-fiberglass, elihlanza kahle izendlalelo ze-compound nepulasitiki futhi lingalimazi ithusi:
Isinyathelo esilandelayo ukubheka ama-pinouts kuwebhusayithi .
Ukuze siqhubeke nokusebenza, sidinga ukudayisa amaqembu angu-3 oxhumana nabo:
- Idatha I/O: D0, D1, D2, D3, D4, D5, D6, D7;
- Lawula othintana nabo: ALE, RE, R/B, CE, CLE, WE;
- Izikhonkwane zamandla: VCC, GND.
Okokuqala udinga ukukhetha isigaba sedivayisi ye-monolithic (kithina i-microSD), bese ukhetha i-pinout ehambisanayo (kithi luhlobo 2).
Ngemuva kwalokhu, udinga ukuvikela ikhadi le-MicroSD ebhodini le-adaptha ukuze lifakwe kalula.
Kungumqondo omuhle ukuphrinta umdwebo we-pinout wedivayisi yakho ye-monolithic ngaphambi kokudayiswa. Ungakwazi ukuyibeka eduze kwayo ukuze kube lula ukubhekisela kuyo uma kunesidingo.
Sesilungele ukuqala ukusoda! Qiniseka ukuthi ideski lakho likhanya kahle.
Faka i-flux ewuketshezi kothintana nabo be-microSD usebenzisa ibhulashi elincane.
Usebenzisa i-toothpick emanzi, beka yonke imikhondo yebhola ezintweni zethusi ezimakwe kumdwebo. Kungcono ukusebenzisa amabhola ane-diameter ye-75% yosayizi wokuxhumana. I-Liquid flux izosisiza ukuthi silungise amabhola ebusweni be-microSD.
Ngemuva kokubeka wonke amabhola koxhumana nabo, uzodinga ukusebenzisa i-soldering iron ukuze uncibilikise i-solder. Qaphela! Yenza zonke izinqubo ngobumnene! Ukuze uncibilike, thinta amabhola ngesihloko se-soldering iron isikhathi esifushane kakhulu.
Lapho wonke amabhola encibilika, udinga ukusebenzisa i-gel flux kumatheminali ebhola koxhumana nabo.
Usebenzisa isomisi sezinwele ezithambile, udinga ukushisa othintana nabo ekushiseni kuka-+200 C °. I-flux izosiza ukusabalalisa izinga lokushisa phezu kwabo bonke othintana nabo futhi ibancibilikise ngokulinganayo. Ngemuva kokushisa, bonke othintana nabo namabhola bazothatha isimo se-hemispherical.
Manje udinga ukususa yonke iminonjana ye-flux usebenzisa utshwala. Udinga ukuyifafaza ku-microSD futhi uyihlanze ngebhulashi.
Okulandelayo silungisa izintambo. Kufanele zibe ubude obufanayo, cishe amasentimitha angu-5-7. Ungakwazi ukukala ubude bezintambo usebenzisa isiqeshana sephepha.
Ngemuva kwalokhu, udinga ukususa i-varnish yokuvikela ezintambo nge-scalpel. Ukuze wenze lokhu, vele uwakhuhle kahle nhlangothi zombili.
Isigaba sokugcina sokulungisa izintambo ukuzifaka ku-rosin ukuze zithengiswe kangcono.
Futhi manje sesilungele ukudayisa izintambo ebhodini le-adaptha. Sincoma ukuqala ukuhlanganisa kusuka ohlangothini lwebhodi, bese uhlanganisa izintambo ukusuka kolunye uhlangothi kuya kudivayisi ye-monolithic ngaphansi kwe-microscope.
Ekugcineni, zonke izintambo ziyadayiswa futhi sesilungele ukusebenzisa isibonakhulu ukuthengisa izintambo ku-microSD. Lona umsebenzi onzima kakhulu futhi udinga isineke esikhulu. Uma uzizwa ukhathele, phumula, udle okuthile okumnandi futhi uphuze ikhofi (ushukela wegazi uzoqeda ukundindizela kwezandla). Ngemuva kwalokho, qhubeka u-solder.
Kubantu abakwesokudla, sincoma ukuthi ubambe i-ayina e-soldering esandleni sakho sokudla futhi ubambe ama-tweezers ngocingo esandleni sakho sobunxele.
I-soldering iron kumele ihlanzeke! Ungakhohlwa ukuyihlanza ngenkathi i-soldering.
Uma usuwadayisile zonke izikhonkwane, qiniseka ukuthi awekho kuwo athinta phansi! Bonke othintana nabo kufanele babanjwe ngokuqinile kakhulu!
Manje usungakwazi ukuxhuma ibhodi ye-adaptha yethu ku-PC-3000 Flash futhi uqale inqubo yokufunda idatha.
Ividiyo yayo yonke inqubo:
Qaphela Transl.: Ngaphambi nje kokuhumusha lesi sihloko ngihlangane nevidiyo elandelayo, ehambisana nesihloko:
Source: www.habr.com