Mene ne kamara mai hankali? fahimtar kyamarori masu amfani da layi na layi
Serial peripheral interface ko SPI yarjejeniyar sadarwa ce da ake amfani da ita a cikin tsarin da aka saka don haɗa masu sarrafawa tare da na'urori na waje kamar na'urori masu auna firikwensin, kyamarori da nuni. kyamarorin SPI suna amfani da wannan mizanin don canja wurin bayanan hoto.
a cikin duniyar shigar da tsarin da na'urorin lantarki, SPI (serial kewaye dubawa) kyamarori sun sami gagarumin shahararsa saboda su sauki.
abubuwan da ke cikin sadarwa na SPI
kafin mu ci gaba da cikakken bayani game da waɗannan cams na spy, bari mu fara fahimtar manyan ra'ayoyin sadarwa na spy. spi wata yarjejeniya ce ta sadarwa ta zamani wanda ke ba da damar na'urori su sadarwa da juna ta hanyar raba bayanai a kan gajeren nesa. yawanci, yana nuna kansa ta hanyar na'urar master (misali, microcontrol
da kuma
Sashen sadarwa na SIP ya dogara ne akan muhimman sakonni guda hudu:
- sck (Agogon serial): wannan siginar ta samo asali ne daga kayan aikin master kuma ana ɗaukarsa a matsayin tushen agogon aiki tare don aiwatar da canja wurin bayanai.
- Mosi (mastering fita bawa a): master na'urar aika bayanai zuwa bawa na'urar da wannan siginar.
- miso (master a bawa fita): bawan na'urar aika bayanai baya ga master na'urar ta amfani da wannan siginar.
- ss (bawan zabi): wannan siginar shine siginar zabin da aka yi amfani dashi don gano wani bawa na musamman don maigidan ya sadarwa tare da.
fahimtar kyamarorin leken asiri
yanzu da samun ra'ayin yadda sadarwa ta SPI ke aiki, zamu kara zurfafa wannan batun ta hanyar zurfafawa cikin kyamarorin SPI. kyamarar kamara ta SPI wani nau'in na'urar firikwensin hoto ne wanda ke da firikwensin hoto, ruwan tabarau da kuma haɗin haɗin kai (SPI) wanda aka haɗa a cikin ƙar
da kuma
kyamarorin leken asiri suna da fa'idodi da yawa waɗanda ke sa su dace da aikace-aikace daban-daban:
- sauƙin haɗawa: kyamarorin spy suna da yarjejeniyar sadarwa mai sauƙi wanda ke amfani da wayoyi huɗu kawai - agogo (sclk), fitaccen fitaccen bawa (mosi), fitaccen bawa mai fita (miso), da zaɓi bawa (ss). wannan yana sa haɗi mai sauƙi da ƙananan fil. sabili da haka, ana iya haɗa shi cikin
- girman karami:kamarorin SPI sun kasance masu karami saboda musayar tana ɗaukar ƙananan fil idan aka kwatanta da kyamarorin USB ko gige vision. wannan yana adana sararin kwamiti.don haka ana iya haɗa su cikin sauƙi cikin na'urori masu šaukuwa, na'urorin IoT (na'urorin Intanet), robotics, da sauran
- low ikon amfani: an tsara kyamarorin SPI don aiki yadda ya kamata tare da ƙananan amfani da wutar lantarki. wannan ya sa su dace da na'urorin batir ko aikace-aikacen da ke buƙatar makamashi.
- kama hotuna a ainihin lokacin: kyamarorin leken asiri na iya ɗaukar hotuna ko hotunan bidiyo a ainihin lokacin, don haka ana iya amfani da su kai tsaye don nazarin ko nazarin bayanan a cikin wuri. wannan yana da mahimmanci musamman ga tsarin da ke kama kowane nau'in sa ido, hangen nesa na inji, gano abubuwa.
- sassauci a cikin saitunan hoto: don yawancin kyamarorin SPI, sigogin daidaitawa da ake da su na iya haɗawa da ƙuduri, ƙimar firam, fallasawa, da zaɓuɓɓukan haɓaka. Wannan sassauci ne ke ba masu amfani damar cimma mafi girman ingancin hotuna ta hanyar daidaitawa da takamaiman buƙatun
da kuma
Bugu da kari ga wannan, kyamarorin leken asiri suna da fa'idodi da yawa na fasaha:
- sadarwa ta kasance daidai, tare da musayar bayanai a kan hawan / saukowa gefuna na siginar agogo da aka aiko ta babban mai sarrafawa.
- spi tana tallafawa bayi da yawa ta amfani da layukan ss na musamman, yana ba da damar haɗin kyamarori da yawa / na'urori ta hanyar maigida ɗaya.
- Saurin canja wurin yana daga daruruwan kbps zuwa dubban mbps dangane da saurin agogo - mai sauri don aikace-aikacen gani da yawa.
- kyamarorin spy suna buƙatar ƙananan kwakwalwan waje fiye da USB / Ethernet kuma suna da sauƙi, haɗin haɗin kuɗi mai kyau don amfani da amfani da amfani.
da kuma
Haɗuwa da tallafin software
Ana bukatar goyon bayan software mai kyau don hadewar kyamarar SPI.
yawancin kyamarorin leken asiri suna da dakunan karatu ko APIs (yanayin shirye-shiryen aikace-aikace) tare da ayyuka da umarni da aka gina don aikin kyamara, ɗaukar hoto, da daidaita saitunan. Ana amfani da irin waɗannan dakunan karatu tare da shahararrun tsarin microcontroller da kayan aikin ci gaba wanda hakan, sa tsarin haɗin software ya
da kuma
Bugu da ƙari, wasu kyamarori masu amfani da su suna da kayan aiki na sarrafawa a cikinna'urar daukar hoto, ta haka ne rage tsarin kaya a kan CPU ko host microcontroller. misali, wadannan kyamarori na iya ƙunsar ayyuka kamar matsawa hoto, daidaita launi, ko ma wasu matakan farko na nazarin hoto algorithms.
da kuma
Ƙarshe
kyamarorin spy suna ba da amsar shirye-shiryen aiki da kuma amsar da aka tsara don wucewa hotuna ko bidiyo a cikin tsarin da aka saka. a gaskiya, sauƙin su da kuma tsara don ƙananan amfani da wutar lantarki, damar lokaci na ainihi kuma suna dacewa da aikace-aikace da yawa. daga kafa tsarin kulawa don gina aikace-aikacen hangen
da kuma
sinoseen yana da kwarewa mai yawa a cikin zane da kuma samar da kyamarori, kuma zai iya samar maka da mafi sana'a shawara da goyon baya, ta hanyar fahimtar aikace-aikace bukatun, don samar maka da mafi dace saka gani mafita. idan kana bukatar, don Allah ji free totuntube mu.
Tambayoyi masu yawa
Tambaya:Menene sadarwa ta SPI, kuma ta yaya ta shafi kyamarorin SPI?
sadarwa ta SPI wata yarjejeniya ce da ake amfani da ita a cikin tsarin da aka saka don musayar bayanai tsakanin na'urori. kyamarorin SPI suna amfani da wannan yarjejeniya don watsa bayanan hoto zuwa masu sarrafawa ko masu sarrafawa don ƙarin aiki ko ajiya. wannan FAQ tana magance fahimtar fahimtar sadarwa ta SPI da mahimmancinta ga kyamarorin SP
da kuma
Q2:Menene fa'idodin amfani da kyamarorin leken asiri a cikin tsarin da aka saka?
kyamarorin spy suna ba da fa'idodi da yawa, gami da sauƙin haɗawa saboda ƙananan buƙatun wayoyi, ƙaramin girma wanda ya dace da na'urori masu ɗaukar hoto, ƙarancin ƙarfin lantarki wanda ya dace da aikace-aikacen batir, ɗaukar hoto a ainihin lokacin don sa ido da hangen nesa na inji, da saitunan hoto masu
da kuma
Tambaya:Yaya zan iya haɗa kyamarorin leken asiri a cikin aikina, kuma wane tallafi na software ne ake samu?
hada kamara na spy a cikin ayyukan ya shafi haɗa su da tsarin microcontroller da kuma amfani da ɗakunan karatu na software ko APIs da masana'antun kyamarori suka samar. waɗannan ɗakunan karatu suna ba da ayyuka don aikin kyamara, ɗaukar hoto, da daidaitawa, sauƙaƙe tsarin haɗawa. Bugu da ƙari, wasu kyamarorin spy suna da ayyukan