Menene Interface SPI? Yaya SPI ke Aiki?

Menene Interface SPI? Yaya SPI ke Aiki?

SPI tana tsaye ga Serial Peripheral interface kuma, kamar yadda sunan ke nunawa, keɓancewar siriyal. An fara bayyana Motorola akan na'urori masu sarrafawa na MC68HCXX.SPI babban sauri ne, cikakken duplex, bas ɗin sadarwa mai aiki tare, kuma kawai ya mamaye layi huɗu akan guntun guntu, yana adana fil ɗin guntu, yayin adana sarari don shimfidar PCB, yana ba da dacewa, galibi ana amfani dashi a cikin EEPROM, FLASH, agogo na ainihi, AD Converter, kuma tsakanin na'urar sarrafa siginar dijital da na'urar siginar dijital.

SPI tana da nau'ikan master da bawa. Tsarin sadarwa na SPI yana buƙatar haɗa da na'ura mai mahimmanci ɗaya (kuma ɗaya kawai) da ɗaya ko fiye na na'urorin bayi. Babbar na’ura (Master) tana samar da agogo, na’urar bayi (Slave), da kuma na’urar sadarwa ta SPI, wadanda babbar na’urar ta fara aiki. Lokacin da na'urorin bayi da yawa suka wanzu, ana sarrafa su ta siginar guntu daban-daban.SPI cikakken duplex ne, kuma SPI ba ta ayyana iyakar gudu ba, kuma aiwatar da gaba ɗaya na iya kaiwa ko ma wuce 10 Mbps.

Ƙwararren SPI gabaɗaya yana amfani da layukan sigina huɗu don sadarwa:

SDI (Shigar da bayanai), SDO (Fitar bayanai), SCK (Agogo), CS (Zaɓi)

MISO:Fin ɗin shigarwa/fitarwa na farko daga na'urar. Fitin yana aika bayanai a cikin yanayin kuma yana karɓar bayanai a cikin babban yanayin.

MOSI:Fitowar Na'urar Farko/Filin shigarwa daga na'urar. Fitin yana aika bayanai a babban yanayin kuma yana karɓar bayanai daga yanayin.

SCLK:Siginar agogon serial, wanda babban kayan aiki ya haifar.

CS/SS:Zaɓi sigina daga kayan aiki, wanda babban kayan aiki ke sarrafawa. Yana aiki azaman "pin zaɓin guntu", wanda ke zaɓar takamaiman na'urar bawa, yana bawa na'urar damar yin sadarwa tare da takamaiman na'urar bawa ita kaɗai kuma ta guje wa rikice-rikice akan layin bayanai.

A cikin 'yan shekarun nan, haɗin fasahar SPI (Serial Peripheral Interface) fasaha da OLED (Organic Light-Emitting Diode) nuni ya zama abin da ya dace a cikin masana'antar fasaha. SPI, wanda aka sani da babban inganci, ƙarancin wutar lantarki, da ƙirar kayan masarufi mai sauƙi, yana ba da ingantaccen watsa sigina don nunin OLED. A halin yanzu, fuskar bangon waya ta OLED, tare da abubuwan da ba su dace da su ba, madaidaicin madaidaicin ƙima, kusurwoyi masu faɗi, da ƙirar ƙira-ƙira, suna ƙara maye gurbin allo na LCD na gargajiya, suna zama mafi kyawun nunin nuni ga wayowin komai da ruwan, wearables, da na'urorin IoT.