Waa maxay doorarka qarsoon ee Crystal Oscillators ay ku ciyaaraan 'Sheefyada Buugaagta Electroniga'?

I. Qeexidda "Qofka Buugaagta Electroniga ah"

"Electronicbookshelf" maaha unug kaydinta jirka balse waa {{0}miisaanka e-akhriste ama terminal akhriska caqli badan. Hadafka aasaasiga ah waa in lagu celceliyo maaraynta buugaagta iyo waayo-aragnimada akhriska ee maktabadaha dhaqameed ama shelfyada buugaagta qaab dhijitaal ah.

II. Qaybaha Muhiimka ah iyo Hawlaha Shelfyada Elektarooniga ah

1. Qalabka Hardware & Doorarkooda

Muujinta Qad Weyn ee E: U dhexeysa 7.8 inji ilaa 13.3 inji ama ka weyn (ka weyn 6–7 inch e- akhristayaasha), waxa ay bixisa aag akhris oo la mid ah buugaagta ama joornaalada. Inta badan waxay isticmaalaan tignoolajiyada E Khadka si ay ugu raaxaystaan ​​indhaha iyo waxtarka tamarta.

Farsameeyaha ugu weyn: Iyada oo ku saleysan ARM Cortex -A ama Cortex{1}M taxane arji soosaarayaal (AP) ama microcontrollers (MCU), waxa ay gacanta ku haysaa nidaamka hawlgalka, samaynta, maamulka faylka, iyo xidhiidhka shabakada.

Xusuusta: Waxa ku jira RAM (oo ah - hawlgallada wakhtiga dhabta ah) iyo Flash/ROM ( kaydinta).

Isku xidhka Wireless: Wi -Fi waa heer; Moodooyinka sare -dhammaadka waxay ku dari karaan 4G/5G ama Bluetooth.

Battery: Weyn-awood lagu taageerayo fadhiyada akhriska ee la dheereeyey.

Hababka wax-soo-gelinta: Taageerada shaashadda taabashada, oo leh moodooyinka qaarkood bogag jidheed - badhamada leexashada.

Interfaces: USB{{0}C (dallacaadda iyo wareejinta xogta), iyo suurtogalnimada booska kaadhka MicroSD.

Astaamaha Maqalka: Sameecadayaasha iyo makarafoonada (oo ku jira moodooyinka la xushay) ee dib u ciyaarida buuga maqalka ama gelinta codka.

2. Software & Hawlaha Muhiimka ah

E{{0}Buugga Akhriska: Waxay taageertaa qaababka waaweyn (EPUB, PDF, MOBI, TXT, iwm.) oo wata dejinta la beddeli karo (font, layout, note, translation).

Maareynta Maktabadda: Waxay abaabushaa ururin badan sida maktabad jireed, awood u siinaysa kala soocidda, raadinta, kala-soocidda, iyo calaamadaynta.

Galitaanka Mawduuca: Waxay ku xidhaa Wi{0}Fi ilaa dukaamada buugaagta ee onlaynka ah (lagu dhisay- gudaha ama sadexaad{2}} xisbiga, sida JD Read, WeChat Read, Kindle) soo dejinta iyo isku xidhka horumarka akhriska.

Ogeysiisyada & Faahfaahinta: Oggolow qoraalka{0}} qaadashada, muujinta, iyo faallooyinka iyadoo la adeegsanayo stylus ama kiiboodhka.

Xakamaynta Dukumentiga: Diirada saara akhrinta PDF, sharraxaadda, iyo dib-u-socodka; taageero qaar ka mid ah daawashada dukumeenti Xafiiska (ku habboon shaqada/waxbarashada).

Extensions App: Nidaamyada furan (tusaale, Android) isticmaalayaashu ha ku rakibaan abka saddexaad{2}}akhrinta xisbiga ama utility.

III. Crystal Oscillators ee Shelefyada Buugaagta Elektarooniga ah: Xirmooyinka, Inta jeer ee, iyo Tilmaamaha

Shelefyada buugaagta ee elektiroonigga ah, sida nidaamyada isku dhafan ee isku dhafan, waxay u baahan yihiin ilo saacadeed oo kala duwan qaybaha kala duwan. Hoos waxaa ku yaal kala-goynta tifaftirka oscillator-ka caadiga ah:

IV. Waa maxay sababta Crystal Oscillators-ku ay muhiim u yihiin

Bixinta waqti sax ah "Garaacyada Wadnaha"
Qaybaha dhijitaalka ah sida soo-saareyaasha, qaybaha isgaadhsiinta, iyo is-dhexgalka waxay ku tiirsan yihiin calaamadaha saacada deggan si ay u wada shaqeeyaan. Iyaga la'aantood, nadaamyadu way xumaan lahaayeen ama si khaldan bay u shaqayn lahaayeen.

Module kulanka -Baahiyaha gaarka ah

Waxqabadka Processor: Sarre - soo noqnoqoshada, saacadda ugu weyn ee deggan (iyada oo la adeegsanayo isku dhufashada PLL) waxay hubisaa hawlgalka CPU siman.

Tayada Wireless: Sare - sax ah, hoose-waji{2}}Buuqaha (tusaale, 26/40MHz) ayaa muhiim u ah Wi{7}Fi/BT transceivers, si toos ah u saameeya xasiloonida isku xidhka, qiimaha xogta, iyo tayada calaamada.

Ilaalinta wakhtiga: 32.768kHz RTC crystal waxa ay ilaalisaa wakhtiga saxda ah{1}}awood hoose, xataa inta lagu jiro qaabka hurdada.

Isuduwidda Shaqada: Samaynta taabashada, soo bandhigida soo-celinta, iyo dib-u-ciyaarista maqalka mid kastaa wuxuu u baahan yahay saacado go'an si loo waafajiyo hawlgallada.

Taageerida yaraynta
Dusha sare - Buurta (SMD) crystals (3225, 2520, 2016, 1612) ku haboon PCB-yada is haysta, buuxinaya caqabadaha booska elegtarooniga ah ee casriga ah.

Xaqiijinta Xasiloonida iyo Isku-kalsoonaanta
Crystals waa in ay u adkeysato isbeddelada heerkulka iyo gariirka, oo leh soo noqnoqoshada xooggan-dejinta heerkulka iyo cimri dhererka{1}

Xakamaynta Isticmaalka Awoodda
Kiristaalo yar oo RTC ah ayaa kordhiya wakhtiga sugitaanka, halka maaraynta awooda hufan ee kiristaalo kale ay yarayso isticmaalka tamarta guud.

Isku dheelitirka Qiimaha iyo Waxqabadka
Soo-saareyaashu waxay doortaan kiristaalo buuxinaya tafatirka farsamada ee qiimaha ugu wanaagsan, iyagoo tixgelinaya kala duwanaanshaha cabbirka xirmada, saxnaanta, iyo astaanta.

V. Gabagabo

Shelefyada buugaagta elektiroonigga ah waxay u baahan yihiin kala duwanaansho, - oscillators wax qabad sarreeya. Fahamka qaabaynta nidaamkooda iyo cutub kasta shuruudihiisa gaarka ah ( xidhmooyin, inta jeer, awoodda rarka, cabbirada waxqabadka) ayaa fure u ah. Laga soo bilaabo soo-saareyaal ilaa modules-ka wireless-ka iyo RTC-yada, qaybahan wakhtigu waxay si toos ah u saameeyaan waxqabadka aaladda, xasiloonida, iyo khibrada isticmaale{3} taasoo ka dhigaysa mid aan looga maarmin nidaamka deegaanka ee shelf buugaagta.