Namhlanje, izixhobo ezininzi ze-NAND zanamhlanje zisebenzisa uhlobo olutsha lolwakhiwo apho i-interface, isilawuli, kunye ne-memory chips zidityanisiwe kumaleko omnye oqhelekileyo wekhompawundi. Isakhiwo esinjalo siyibiza ngokuba yi-monolithic.
Kuze kube kutshanje, zonke iimemori khadi ezifana ne-SD, i-Sony MemoryStick, i-MMC kunye nabanye basebenzisa i-"classic" isakhiwo esilula esinamalungu ahlukeneyo - umlawuli, ibhodi kunye ne-NAND memory chip kwi-TSOP-48 okanye i-LGA-52 iphakheji. Kwiimeko ezinjalo, inkqubo yokubuyisela yayilula kakhulu - sayikhulula imemori ye-chip, sayifunda kwi-PC-3000 Flash, kwaye senze amalungiselelo afanayo kwimeko ye-USB flash drives eqhelekileyo.
Nangona kunjalo, kuthekani ukuba ikhadi lethu lememori okanye isixhobo se-UFD sinesakhiwo se-monolithic? Ukufikelela njani kwimemori ye-NAND kwaye ufunde idatha kuyo?
Kule meko, ukuyibeka ngokulula, kufuneka sifumane uqhagamshelwano olukhethekileyo lwemveliso yezobuchwepheshe phantsi kwesixhobo sethu se-monolithic ngokususa isambatho sayo kule nto.
Kodwa ngaphambi kokuba uqalise ukubuyisela idatha kwisixhobo se-monolithic, kufuneka sikulumkise ukuba inkqubo yokuthengisa isixhobo se-monolithic inzima kwaye idinga izakhono ezifanelekileyo zokubethela kunye nezixhobo ezizodwa. Ukuba awuzange uzame ukuthengisa isixhobo se-monolithic ngaphambili, sincoma ukuba uziqhelanise nezixhobo zabanikezeli ngedatha engeyomfuneko. Umzekelo, ungathenga izixhobo ezimbalwa ukuze uziqhelanise nolungiselelo lwakho kunye ne-solder.
Apha ngezantsi kuluhlu lwezixhobo ezifunekayo:
- I-microscope ephezulu yomgangatho ophezulu kunye nokukhulisa amaxesha angama-2, ama-4 kunye nama-8.
- I-iron yokuthambisa ye-USB enencam encinci kakhulu.
- Iteyiphu emacaleni ephindwe kabini
- Ulwelo olusebenzayo olusebenzayo.
- I-gel flux yebhola ekhokelayo.
- Soldering umpu (umzekelo, Lukey 702).
- IRosin.
- Amazinyo omthi.
- Utywala (75% isopropyl).
- Iingcingo zobhedu 0,1 mm ubukhulu kunye ne-lacquer insulation.
- I-Jewellery sandpaper (i-1000, i-2000 kunye ne-2500-iphezulu inani, incinci ingqolowa).
- Ibhola ikhokelela kwi-0,3 mm.
- AmaTweekers.
- I-scalpel ebukhali.
- Inkqubo yepinout.
- Ibhodi yeadaptha yePC-3000 Flash.
Xa zonke izixhobo zilungile, ungaqala inkqubo.
Masithathe isixhobo sethu se-monolithic kuqala. Kule meko, yikhadi elincinci le-microSD. Kufuneka siyilungise etafileni kunye ne-tape enamacala amabini.
Emva koko, siya kuqala ukususa i-compound layer ukusuka ngaphantsi. Oku kuya kuthatha ixesha - kufuneka ube nomonde kwaye uqaphele. Ukuba uyonakalisa umaleko wabafowunelwa, idatha ayinakufunyanwa kwakhona!
Masiqale ngeyona sandpaper irhabaxa, eneyona grit inkulu - 1000 okanye 1200.
Emva kokususa ubuninzi beengubo, kufuneka utshintshe kwi-sandpaper encinci - 2000.
Ekugqibeleni, xa kuvela ubhedu lwabafowunelwa, kufuneka utshintshe kwi-sandpaper egqwesileyo - 2500.
Ukuba yonke into yenziwe ngokuchanekileyo, uya kufumana into efana nale:
Endaweni ye-sandpaper, ungasebenzisa le brashi ye-fiberglass, ecoca ngokugqibeleleyo iileya ze-compound kunye neplastiki, kwaye ingonakalisi ubhedu:
Inyathelo elilandelayo kukukhangela ipinout kwisiza. .
Ukuqhubeka nomsebenzi, kufuneka sithengise amaqela ama-3 abafowunelwa:
- Idatha ye-I / O: D0, D1, D2, D3, D4, D5, D6, D7;
- Ukulawula oonxibelelwano: ALE, RE, R / B, CE, CLE, WE;
- Izikhonkwane zamandla: VCC, GND.
Okokuqala kufuneka ukhethe udidi lwesixhobo se-monolithic (kwimeko yethu yi-microSD), uze ukhethe i-pinout ehambelanayo (kwimeko yethu luhlobo lwe-2).
Emva koko, kufuneka ulungise ikhadi le-microSD kwibhodi ye-adapter ukuze udibanise ngokulula.
Ngumbono olungileyo ukuprinta umzobo wepinout wesixhobo sakho se-monolithic phambi kokuba uthengise. Inokubekwa ecaleni kwayo ukuze kube lula ukubhekisela kuyo xa kuyimfuneko.
Sikulungele ukuqalisa i-solder! Qinisekisa ukuba idesktop yakho ikhanya kakuhle.
Faka i-flux yolwelo kwiikhonkwane ze-microSD ngebrashi encinci.
Ukusebenzisa i-toothpick emanzi, beka zonke iibhola kwizikhonkwane zobhedu eziphawulwe kwiskim. Kungcono ukusebenzisa iibhola ezinobubanzi be-75% yobukhulu boqhagamshelwano. I-flux ye-liquid iya kusinceda ukulungisa iibhola ebusweni be-microSD.
Emva kokubeka zonke iibhola kubafowunelwa, kuya kufuneka usebenzise isinyithi sokunyibilikisa i-solder. Lumnka! Zonke iinkqubo zenziwa ngobunono! Ukunyibilika ixesha elifutshane kakhulu, chukumisa iibhola ngencam yentsimbi ye-soldering.
Xa zonke iibhola zinyibilika, kufuneka usebenzise i-gel flux kwibhola ekhokelela kubafowunelwa.
Ukusebenzisa i-soldering dryer, kufuneka ufudumeze abafowunelwa kwiqondo lokushisa lika-+200 C Β°. I-flux iya kunceda ukusabalalisa ukushisa kubo bonke abafowunelwa kwaye banyibilike ngokulinganayo. Emva kokufudumeza, bonke abafowunelwa kunye neebhola ziya kuthatha i-hemispherical shape.
Ngoku kufuneka ususe zonke iimpawu ze-flux ngotywala. Kufuneka uyitshize kwi-microSD kwaye uyihlambulule ngebrashi.
Emva koko, lungisa iingcingo. Kufuneka zibe ubude obufanayo, malunga ne-5-7 cm.Unokulinganisa ubude beentambo ngephepha lephepha.
Emva koko, kufuneka ususe i-varnish yokukhusela kwiingcingo nge-scalpel. Ukwenza oku, zikrwele nje ngobunono kumacala omabini.
Inqanaba lokugqibela lokulungiselela iingcingo lizifake kwi-rosin ukwenzela ukuba zithengiswe ngcono.
Kwaye ngoku sikulungele ukuthengisa iingcingo kwibhodi ye-adapter. Sincoma ukuba uqale i-soldering ukusuka kwicala lebhodi, uze uthengise iingcingo ukusuka kwelinye icala ukuya kwisixhobo se-monolithic phantsi kwe-microscope.
Ekugqibeleni, zonke iingcingo zithengiswa kwaye sikulungele ukusebenzisa i-microscope ukuthengisa iingcingo kwi-microSD. Lo ngowona msebenzi unzima, ofuna umonde omkhulu. Ukuba uziva udiniwe, phumla, yitya into emnandi kwaye usele ikofu (iswekile yegazi iya kuphelisa ukuxhawula izandla). Emva koko qhubeka u-solder.
Kubaphathi basekunene, sincoma ukubamba intsimbi ye-solder esandleni sokunene, kwaye ubambe i-tweezers ngocingo kwisandla sasekhohlo.
Intsimbi yokuthambisa kufuneka icoceke! Ungalibali ukuyicoca ngelixa i-soldering.
Emva kokuthengisela zonke izikhonkwane, qiniseka ukuba akukho namnye kubo ochukumisa umhlaba! Bonke abafowunelwa kufuneka baqine kakhulu!
Ngoku sinokuqhagamshela ibhodi yethu yeadaptha kwiPC-3000 Flash kwaye siqale inkqubo yokufunda idatha.
Ividiyo yayo yonke le nkqubo:
Phawula. Uguqulelo: Kwakufutshane nje phambi kokuguqulelwa kweli nqaku, ndifumene le vidiyo ilandelayo, ilungele isihloko:
umthombo: www.habr.com