Iyini i-SPI Interface? Isebenza Kanjani i-SPI?

Iyini i-SPI Interface? Isebenza Kanjani i-SPI?

I-SPI imele isikhombikubona se-Serial Peripheral futhi, njengoba igama lisho, isikhombikubona se-serial peripheral. I-Motorola yaqala ukuchazwa kuma-processor ayo ochungechunge lwe-MC68HCXX.I-SPI iyibhasi lokuxhumana elisheshayo, eli-duplex egcwele, elihambisanayo, futhi lihlala emigqeni emine kuphela kuphini le-chip, lisindisa iphini le-chip, ngenkathi lisindisa isikhala sesakhiwo se-PCB, linikeza ukulula, okusetshenziswa kakhulu ku-EEPROM, i-FLASH, iwashi lesikhathi sangempela, i-AD converter, kanye naphakathi kweprosesa yesignali yedijithali kanye ne-decoder yesignali yedijithali.

I-SPI inezindlela ezimbili ze-master kanye ne-slave. Uhlelo lokuxhumana lwe-SPI ludinga ukufaka idivayisi eyodwa (eyodwa kuphela) kanye nedivayisi eyodwa noma ngaphezulu ye-slave. Idivayisi eyinhloko (i-Master) inikeza iwashi, idivayisi ye-slave (i-Slave), kanye ne-interface ye-SPI, konke okuqalwa yidivayisi eyinhloko. Uma kukhona amadivayisi amaningi e-slave, aphathwa yizimpawu ze-chip ezifanele.I-SPI iyi-full-duplex, futhi i-SPI ayichazi umkhawulo wejubane, futhi ukusetshenziswa okuvamile kungafinyelela noma kudlule ngisho ne-10 Mbps.

I-interface ye-SPI ngokuvamile isebenzisa imigqa emine yesignali yokuxhumana:

I-SDI (Ukufaka Idatha), i-SDO (Ukuphuma kwedatha), i-SCK (Iwashi), i-CS (Khetha)

I-MISO:Iphinikhodi yokufaka/yokukhipha yedivayisi eyinhloko evela kudivayisi. Iphinikhodi ithumela idatha kwimodi futhi yamukela idatha kwimodi eyinhloko.

I-MOSI:Iphinikhodi Yokukhipha/yokufaka Yedivayisi Eyinhloko kusuka kudivayisi. Iphinikhodi ithumela idatha kwimodi eyinhloko futhi ithola idatha kusuka kwimodi.

I-SCLK:Isignali yewashi elilandelanayo, ekhiqizwa imishini eyinhloko.

I-CS / SS:Khetha isignali evela kumishini, elawulwa yimishini eyinhloko. Isebenza njenge-"chip choice pin", ekhetha idivayisi yesigqila ecacisiwe, evumela idivayisi eyinhloko ukuthi ixhumane nedivayisi yesigqila ethile yodwa futhi igweme ukungqubuzana emgqeni wedatha.

Eminyakeni yamuva nje, ukuhlanganiswa kobuchwepheshe be-SPI (Serial Peripheral Interface) kanye nezibonisi ze-OLED (Organic Light-Emitting Diode) sekuyinto ebalulekile embonini yezobuchwepheshe. I-SPI, eyaziwa ngokusebenza kwayo kahle kakhulu, ukusetshenziswa kwamandla aphansi, kanye nomklamo olula wehadiwe, inikeza ukudluliswa kwesignali okuzinzile kwezibonisi ze-OLED. Okwamanje, izikrini ze-OLED, ngezakhiwo zazo ezizikhiphayo, izilinganiso eziphezulu zokungafani, ama-engeli okubuka abanzi, kanye nemiklamo emincane kakhulu, ziya ngokuya zithatha indawo yezikrini ze-LCD zendabuko, ziba yisisombululo sokubonisa esithandwayo sama-smartphone, izinto ezigqokwayo, kanye namadivayisi e-IoT.