Nhasi, mazhinji emazuvano eNAND flash zvishandiso anoshandisa rudzi rutsva rwekuvaka umo iyo interface, controller, uye memory machipi zvakabatanidzwa mune imwechete yakajairika layer yekomboni. Tinodaidza chimiro chakadaro monolithic.
Kusvika nguva pfupi yadarika, ese makadhi ekurangarira akadai seSD, Sony MemoryStick, MMC nevamwe vakashandisa yakapusa "yechinyakare" chimiro chine zvikamu zvakaparadzana - controller, bhodhi uye NAND memory chip muTSOP-48 kana LGA-52 package. Mumamiriro ezvinhu akadaro, maitiro ekudzoreredza aive akareruka - isu takasunungura memory chip, tikaiverenga muPC-3000 Flash, uye takaita gadziriro yakafanana neyakajairwa USB flash drive.
Nekudaro, ko kana ndangariro kadhi yedu kana UFD mudziyo une monolithic chimiro? Nzira yekuwana sei iyo NAND memory chip uye kuverenga data kubva mairi?
Muchiitiko ichi, kuti titaure zviri nyore, isu tinofanirwa kutsvaga yakakosha tekinoroji inobuda yekubata pazasi pechigadzirwa chedu che monolithic nekubvisa kupfekedza kwayo kweizvi.
Asi usati watanga nekudzoreredza dhata kubva kune monolithic mudziyo, isu tinofanirwa kukuyambira kuti maitiro ekutengesa chigadziro che monolithic chakaoma uye chinoda hunyanzvi hwekutengesa uye yakakosha michina. Kana usati wamboedza kutengesa monolithic mudziyo kare, tinokurudzira kuti udzidzire pamidziyo yevanopa ine data risingakoshi. Semuenzaniso, unogona kutenga akati wandei maturusi kuti ungodzidzira kugadzirira kwako uye solder.
Pazasi pane rondedzero yemidziyo inodiwa:
- Iyo yemhando yepamusoro yemicroscope ine magnification e2, 4 uye 8 nguva.
- USB solder iron ine muromo mutete kwazvo.
- Yakapetwa mativi tepi.
- Liquid active flux.
- Gel flux yebhora rinotungamira.
- Soldering pfuti (somuenzaniso, Lukey 702).
- Rosin.
- Mazino emapuranga.
- Doro (75% isopropyl).
- Waya dzemhangura 0,1 mm gobvu ine lacquer insulation.
- Jewellery sandpaper (1000, 2000 uye 2500 - iyo yakakwirira nhamba, iyo idiki zviyo).
- Bhora rinotungamira 0,3 mm.
- Tweezers
- Yakapinza scalpel.
- Pinout chirongwa.
- Adapter board yePC-3000 Flash.
Kana zvese zvishandiso zvagadzirwa, unogona kutanga maitiro.
Ngatitorei yedu monolithic mudziyo kutanga. Mune ino kesi, idiki microSD kadhi. Tinofanira kuigadzirisa patafura nekaviri-sided tape.
Mushure meizvozvo, isu tichatanga kubvisa iyo komputa layer kubva pazasi. Izvi zvinotora nguva - iwe unofanirwa kuva nemoyo murefu uye kungwarira. Kana iwe ukakuvadza iyo yekufonera layer, iyo data haigone kudzoserwa!
Ngatitangei nejecha rakaomesesa, nehukuru hukuru hwegrit - 1000 kana 1200.
Mushure mekubvisa yakawanda yekuvhara, iwe unofanirwa kushandura kune diki sandpaper - 2000.
Pakupedzisira, kana mhangura yemhangura yevanoshamwaridzana ichionekwa, unofanirwa kushandura kune yakanakisa sandpaper - 2500.
Kana zvese zvikaitwa nemazvo, uchawana chimwe chinhu chakadai:
Panzvimbo pe sandpaper, unogona kushandisa iyi fiberglass brashi, iyo inonatsa zvakakwana zvidimbu zvekomboni uye epurasitiki, uye isingakuvadze mhangura:
Nhanho inotevera ndeyekutsvaga pinout pane saiti. .
Kuti tienderere mberi nebasa, tinoda kutengesa mapoka matatu evanobatika:
- Data I/O: D0, D1, D2, D3, D4, D5, D6, D7;
- Kudzora mazita: ALE, RE, R / B, CE, CLE, WE;
- Mapini emagetsi: VCC, GND.
Kutanga iwe unofanirwa kusarudza chikamu che monolithic mudziyo (munyaya yedu ndeye microSD), uye wozosarudza inopindirana pinout (munyaya yedu ndeye 2).
Mushure meizvozvo, iwe unofanirwa kugadzirisa iyo microSD kadhi pane adapta board kuitira nyore soldering.
Ipfungwa yakanaka kudhinda dhiyagiramu yepinout yechishandiso chako che monolithic usati watengesa. Inogona kuiswa pedyo nayo kuitira kuti zvive nyore kutaura nayo pazvinenge zvakakodzera.
Isu takagadzirira kutanga soldering! Ita shuwa kuti desktop yako yakavhenekerwa zvakanaka.
Isa fluid flux kune microSD pini nebhurashi diki.
Uchishandisa mazino akanyorova, isa mabhora ese pamapini emhangura akaiswa pachirongwa. Zvakanakisisa kushandisa mabhora ane dhayamita ye75% yehukuru hwematanho. Iyo yemvura inoyerera ichatibatsira kugadzirisa mabhora ari pamusoro peiyo microSD.
Mushure mekuisa mabhora ose pane vanobatana, iwe uchada kushandisa solder iron kunyungudutsa solder. Chenjera! Maitiro ese anoitwa zvinyoro nyoro! Kuti unyunguduke kwenguva pfupi, bata mabhora nemuromo wesimbi yekunyungudutsa.
Kana mabhora ese anyungudutswa, unofanirwa kuisa gel flux yebhora inotungamira kune vanobatika.
Uchishandisa solder dryer, iwe unofanirwa kudziyisa iwo anobatika kune tembiricha ye +200 C Β°. Iyo flux ichabatsira kuparadzira tembiricha pane ese maaiti uye nekunyungudutsa iwo akaenzana. Mushure mekupisa, zvese zvinobatika uye mabhora zvinotora pane hemispherical chimiro.
Iye zvino unoda kubvisa zvose zvinyorwa zvekuyerera nedoro. Iwe unofanirwa kuipfapfaidza pa microSD uye uichenese nebhurashi.
Zvadaro, gadzirira waya. Dzinofanira kunge dzakafanana kureba, anenge masendimita 5-7. Unogona kuyera kureba kwewaya nechidimbu chepepa.
Mushure meizvozvo, iwe unofanirwa kubvisa iyo insulating varnish kubva kune waya ne scalpel. Kuti uite izvi, ingozvikwenya zvinyoro nyoro pamativi ese.
Nhanho yekupedzisira yekugadzira waya ndeyekupinza mu rosin kuitira kuti iwedzere kutengeswa.
Uye ikozvino takagadzirira kutengesa waya kune adapta board. Tinokurudzira kuti utange kutengesa kubva kudivi rebhodhi, uye wozotengesa waya kubva kune rumwe rutivi kuenda kune monolithic mudziyo pasi pe microscope.
Pakupedzisira, waya dzose dzinotengeswa uye takagadzirira kushandisa maikorosikopu kutengesa waya kune microSD. Uku ndiko kuvhiya kwakanyanya, kunoda kushivirira kukuru. Kana iwe uchinzwa wakaneta, zorora, idya chimwe chinhu chinotapira uye inwa kofi (shuga yeropa ichabvisa kubatwa kwemaoko). Zvadaro pfuurira soldering.
Kune vakarurama-maoko, tinokurudzira kubata simbi inotengeswa muruoko rworudyi, uye kubata ma tweezers newaya muruoko rworuboshwe.
Simbi yekusimbisa inofanira kunge yakachena! Usakanganwa kuichenesa paunenge uchitengesa.
Mushure mekutengesa mapini ese, ita shuwa kuti hapana ari kubata pasi! Ese anobatika anofanirwa kuve akasimba kwazvo!
Iye zvino isu tinokwanisa kubatanidza adapta board yedu kuPC-3000 Flash uye titange maitiro ekuverenga data.
Vhidhiyo yemaitiro ese:
Cherechedza. transl.: Kwangosara nguva pfupi kuti chinyorwa ichi chishandurwe, ndasangana nevhidhiyo inotevera, yakakodzera musoro wenyaya:
Source: www.habr.com