Menene Tsarin Sadarwa na SPI? Ta yaya SPI ke Aiki?
SPI tana nufin Serial Peripheral interface kuma, kamar yadda sunan ya nuna, serial peripheral interface. An fara bayyana Motorola a matsayin na'urori masu sarrafawa na MC68HCXX.SPI bas ne mai sauri, cikakken duplex, kuma mai aiki tare, kuma yana ɗaukar layuka huɗu kawai akan fil ɗin guntu, yana adana fil ɗin guntu, yayin da yake adana sarari don tsarin PCB, yana ba da sauƙi, galibi ana amfani da shi a cikin EEPROM, FLASH, agogon lokaci-lokaci, mai canza AD, da kuma tsakanin mai sarrafa siginar dijital da mai fassara siginar dijital.
SPI tana da yanayin master da bawa guda biyu. Tsarin sadarwa na SPI yana buƙatar haɗawa da na'urar farko ɗaya (kuma ɗaya kawai) da na'urorin bawa ɗaya ko fiye. Babban na'urar (Master) tana samar da agogo, na'urar bawa (Slave), da kuma hanyar haɗin SPI, waɗanda duk babban na'urar ce ta fara su. Idan akwai na'urori da yawa na bawa, ana sarrafa su ta hanyar siginar guntu daban-daban.SPI cikakken duplex ne, kuma SPI ba ta ayyana iyakacin gudu ba, kuma aiwatarwa gabaɗaya yawanci yakan iya kaiwa ko ma wuce 10 Mbps.
Tsarin SPI gabaɗaya yana amfani da layukan sigina guda huɗu don sadarwa:
SDI (Shigar da Bayanai), SDO (Fitar da Bayanai), SCK (Agogo), CS (Zaɓi)
MISO:Babban fil ɗin shigarwa/fitarwa na na'urar daga na'urar. fil ɗin yana aika bayanai a cikin yanayin kuma yana karɓar bayanai a cikin babban yanayin.
MOSI:Babban fil ɗin fitarwa/shigar na'ura daga na'urar. fil ɗin yana aika bayanai a cikin babban yanayin kuma yana karɓar bayanai daga yanayin.
SCLK:Siginar agogo ta serial, wadda babban kayan aiki ya samar.
CS / SS:Zaɓi sigina daga kayan aiki, wanda babban kayan aiki ke sarrafawa. Yana aiki azaman "filin zaɓin guntu", wanda ke zaɓar na'urar bawa da aka ƙayyade, yana bawa na'urar babban damar sadarwa da takamaiman na'urar bawa ita kaɗai kuma yana guje wa rikice-rikice akan layin bayanai.
A cikin 'yan shekarun nan, haɗakar fasahar SPI (Serial Peripheral Interface) da nunin OLED (Organic Light-Emitting Diode) ya zama abin da ya fi mayar da hankali a masana'antar fasaha. SPI, wacce aka sani da inganci mai yawa, ƙarancin amfani da wutar lantarki, da ƙirar kayan aiki mai sauƙi, tana ba da damar watsa sigina mai ɗorewa ga nunin OLED. A halin yanzu, allon OLED, tare da halayensu na fitar da kai, babban rabo mai bambanci, kusurwoyin kallo masu faɗi, da ƙira mai siriri, suna ƙara maye gurbin allon LCD na gargajiya, suna zama mafita mafi kyau ga nuni ga wayoyin komai da ruwanka, na'urorin da ake sawa, da na'urorin IoT.
Lokacin Saƙo: Fabrairu-20-2025