Nhasi, mazhinji emazuvano eNAND flash memory zvishandiso anoshandisa rudzi rutsva rwekuvaka umo iyo interface, controller, uye memory machipi zvakabatanidzwa mune imwechete yakajairika mukomboni layer. Isu tinodaidza chimiro ichi kuti 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 mune TSOP-48 kana LGA-52 kesi. Mumamiriro ezvinhu akadaro, maitiro ekudzoreredza aive akareruka - takatengesa memory chip, tikaiverenga muPC-3000 Flash, uye tikaita gadziriro yakafanana neyakajairwa USB flash drive.
Asi ko kana ndangariro kadhi kana UFD mudziyo une monolithic chimiro? Nzira yekuwana sei iyo NAND memory chip uye kuverenga data kubva mairi?
Mune ino kesi, zviri nyore, isu tinofanirwa kutsvaga yakakosha tekinoroji inobuda yekubata pazasi pechishandiso chedu che monolithic nekubvisa kupfekedza kwayo.
Asi usati watanga kudzoreredza data kubva kune monolithic mudziyo, isu tinofanirwa kukuyambira kuti maitiro ekutengesa monolithic mudziyo wakaoma uye unoda hunyanzvi hwekutengesa uye yakakosha michina. Kana usati wamboedza kutengesa monolithic mudziyo kare, tinokurudzira kuti udzidzire pane vanopa zvishandiso zvine data risingakoshi. Semuenzaniso, unogona kutenga akati wandei maturusi kuti ungodzidzira kugadzirira uye solder.
Pazasi pane rondedzero yemidziyo inodiwa:
- Yakakwirira-yemhando yepamusoro microscope ine magnification e2, 4 uye 8 nguva.
- USB solder iron ine muromo mutete kwazvo.
- Tepi ine mativi maviri.
- Liquid active flux.
- Gel flux yebhora terminals.
- Simbi inopinza (semuenzaniso Lukey 702).
- Rosin.
- Mazino emapuranga.
- Doro (75% isopropyl).
- Waya dzemhangura 0,1 mm gobvu ine varnish insulation.
- Jewelers sandpaper (1000, 2000 uye 2500 - iyo yakakwirira nhamba, iyo inonaka zviyo).
- Ball terminals 0,3mm.
- Tweezers
- Yakapinza scalpel.
- Pinout diagram.
- Adapter board yePC-3000 Flash.
Kana zvese zvishandiso zvagadzirwa, unogona kutanga maitiro.
Kutanga, ngatitore yedu monolithic mudziyo. 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 layer nevanobatika, iyo data haigone kudzoserwa!
Ngatitangei neyakaomesesa sandpaper, ine yakakura saizi yezviyo - 1000 kana 1200.
Mushure mekubvisa yakawanda yekupfeka, iwe unofanirwa kushandura kune yakanaka sandpaper - 2000.
Pakupedzisira, kana mhangura yemhangura yevanobatwa ichionekwa, unofanirwa kushandura kune yakanakisa sandpaper - 2500.
Kana zvese zvikaitwa nemazvo, uchawana chimwe chinhu chakadai:
Panzvimbo yejecha, unogona kushandisa iyi fiberglass brashi, iyo inobvisa zvakakwana zvidimbu zvekomboni nepurasitiki, uye isingakuvadze mhangura:
Nhanho inotevera ndeyekutsvaga pinout pawebhusaiti .
Kuti tirambe tichishanda tinoda kutengesa mapoka matatu evanobatika:
- I/O data: D0, D1, D2, D3, D4, D5, D6, D7;
- Kudzora mazita: ALE, RE, R / B, CE, CLE, WE;
- Power contacts: VCC, GND.
Kutanga, iwe unofanirwa kusarudza chikamu cheiyo monolithic mudziyo (munyaya yedu, iyo microSD), uye wozosarudza inopindirana pinout (munyaya yedu, iri mhando 2).
Mushure meizvi, iwe unofanirwa kuchengetedza iyo microSD kadhi kune adapta bhodhi kuti zvive nyore kushambadzira.
Ipfungwa yakanaka kudhinda dhiyagiramu yepinoti yemudziyo wako we monolithic usati watengeswa. Unogona kuichengeta padhuze kuti uione zviri nyore kana zvichidiwa.
Tagadzirira kutanga soldering! Ita shuwa kuti bhenji rako rebasa rakavhenekwa zvakanaka.
Isa fluid flux kune microSD contacts uchishandisa bhurashi diki.
Uchishandisa chipikiri chemazino chakanyorova, isa bhora rese pane macontacts emhangura akaiswa padhayagiramu. Zvakanakisisa kushandisa mabhora ane dhayamita ye75% yehukuru hwematanho. Liquid flux ichatibatsira kugadzirisa mabhora ari pamusoro peiyo microSD.
Kana mabhora ese ari pane vanobatika, iwe unozofanirwa kushandisa simbi yekunyungudutsa solder. Chenjera! Ita maitiro ese zvinyoronyoro! Kuti unyunguduke, bata mabhora nemuromo wesimbi yekunyungudutsa kwenguva pfupi.
Kana mabhora ese anyunguduka, unofanirwa kuisa gel flux kune bhora terminal kune vanobatika.
Uchishandisa solder hair dryer, kupisa vanobatika kune tembiricha ye +200 C °. Iyo flux inobatsira kugovera tembiricha pane ese maaiti uye nekunyungudutsa iwo akaenzana. Mushure mekupisa, zvese zvinobatika uye mabhora zvinotora hemispherical chimiro.
Iye zvino iwe unofanirwa kubvisa zvese zvinongedzo zvekuyerera uchishandisa doro. Iwe unofanirwa kuipfapfaidza pa microSD uye uichenese nebhurashi.
Zvadaro, gadzirira waya. Vanofanira kunge vakafanana kureba, anenge 5-7 cm. Iwe unogona kuyera kureba kwewaya uchishandisa bepa.
Mushure meizvi, unoda kubvisa varnish yekudzivirira kubva kune waya ne scalpel. Kuti uite izvi, ingozvikwenya zvinyoro nyoro pamativi ese.
Nhanho yekupedzisira yekugadzira waya ndeyekupinza mu rosin kuitira kuti igone kutengeswa zviri nani.
Uye ikozvino takagadzirira kutengesa waya kune adapta board. Tinokurudzira kutanga kutengesa kubva kudivi rebhodhi, uyezve kutengesa waya kubva kune rumwe rutivi kusvika kune monolithic device 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 muropa ichabvisa kubvunda kwemaoko). Mushure maizvozvi, ramba uchitengesa.
Kune vanhu vane ruoko rworudyi, tinokurudzira kubata simbi inosungirirwa muruoko rworudyi uye kubata tweezers newaya muruoko rworuboshwe.
Simbi yekusimbisa inofanira kunge yakachena! Usakanganwa kuichenesa panguva ye soldering.
Kana uchinge watengesa zvese zvinobatika, ita shuwa kuti hapana kana mumwe wavo anobata pasi! Ese macontacts anofanirwa kuve akasimba kwazvo!
Iye zvino isu tinokwanisa kubatanidza adapta board yedu kuPC-3000 Flash uye titange maitiro ekuverenga data.
Vhidhiyo yemaitiro ese:
Chiziviso chemushanduri: Ndisati ndashandura chinyorwa ichi, ndasangana nevhidhiyo inotevera, ine chekuita nemusoro wenyaya:
Source: www.habr.com
