Mumazuva mazhinji ekugadzira maitiro, vanhu vakapfupisa mitemo yakawanda.Kana idzi nheyo dzinogona kuteverwa mukugadzirwa kwedunhu, zvichave zvinobatsira kune chaiyo debugging yerakadhindwa redunhu bhodhi (PCB)control software uye yakajairika kushanda kweiyo hardware wedunhu.Muchidimbu, misimboti inofanirwa kuteverwa ndeiyi:
(1) Panyaya yekurongeka kwezvikamu, zvikamu zvine hukama kune mumwe nemumwe zvinofanirwa kuiswa padyo sezvinobvira.Semuyenzaniso, wachi jenareta, crystal oscillator, wachi yekuisa magumo eCPU, nezvimwe, zvinowanzoitika kuunza ruzha.Kana dzaiswa, dzinofanira kuiswa pedyo.
(2) Edza kuisa decoupling capacitors padivi pezvinhu zvakakosha seROM, RAM uye mamwe machipi.Aya mapoinzi anotevera anofanirwa kucherechedzwa kana uchiisa decoupling capacitors:
1) Kupera kwesimba rekuisa kweakadhindwa redunhu bhodhi (PCB) inosungirirwa kune electrolytic capacitor inosvika 100uF.Kana vhoriyamu ichibvumira, huwandu hukuru hunenge huri nani.
2) Muchidimbu, 0.1uF ceramic chip capacitor inofanirwa kuiswa padivi pega yega IC chip.Kana gaka rebhodhi rakadhindwa redunhu (PCB) rakanyanya kudiki kuti riiswe, 1-10uF tantalum capacitor inogona kuiswa yakatenderedza gumi ega ega machipi.
3) Kune zvikamu zvine simba rekudzivirira-kupindira risina simba uye zvinhu zvekuchengetedza zvakadai se RAM neROM ine kuchinja kukuru kwezvino paunenge uchidzima, decoupling capacitors inofanira kubatanidzwa pakati pemagetsi emagetsi (VCC) uye pasi wire (GND).
4) Iyo capacitor lead haifanirwe kunge yakareba.Kunyanya, yakakwira frequency yakadhindwa redunhu bhodhi (PCB) bypass capacitors haifanirwe kutakura inotungamira.
(3) Zvisungo zvinowanzoiswa pamucheto webhodhi redunhu kuti rifambise kuisa uye wiring basa kumashure.Kana pasina nzira, inogona kuiswa pakati pebhodhi, asi edza kudzivisa kuita kudaro.
(4) Muchigadziro chezvinyorwa zvezvikamu, zviri nyore zve wiring zvinofanira kutariswa sezvinobvira.Kune nzvimbo dzine wiring dzakawanda, nzvimbo yakakwana inofanira kuiswa parutivi kudzivirira kuvharwa kwewaya.
(5) Dhijitari redunhu uye analog dunhu rinofanira kurongeka munzvimbo dzakasiyana.Kana zvichibvira, nzvimbo ye 2-3mm pakati pavo inofanira kuva yakakodzera kudzivisa kupindirana.
(6) Kumaseketi ari pasi pekumanikidzwa kwakakwirira uye kwakaderera, nzvimbo inopfuura 4mm inofanira kuiswa parutivi pakati pawo kuitira kuti ive nechokwadi chekuvimbika kwakakwana kwemagetsi ekudzivirira.
(7) Kurongeka kwezvikamu kunofanirwa kuve kwakatsvinda uye kwakanaka sezvinobvira.
Nguva yekutumira: Nov-16-2020
