SPI interface yog dab tsi? SPI li cas spi ua haujlwm?

SPI interface yog dab tsi? SPI li cas spi ua haujlwm?

Spi sawv rau cov ntu ntu thiab, raws li lub npe qhia, muaj kev sib cuam tshuam dhau los. Motorola tau hais tawm thawj zaug ntawm nws MC68HCX-series processors.SPI yog kev kub ceev, tag nrho-declex, txuag tus pin ntawm lub chip, txuag tau cov kab ntawv pcb, thaum txuag tau qhov chaw rau PCB, muab kev yooj yim, nyem, Lub sijhawm tiag tiag-lub sijhawm, xa cov cim, thiab nruab nrab ntawm lub teeb liab teeb liab accessor thiab digital teeb liab decoder.

SPI muaj ob tus tswv thiab qhev hom. Qhov kev sib txuas lus spi yuav tsum muaj ib qho (thiab tsuas yog ib qho) cov cuab yeej ntaus ntawv thiab ib lossis ib qho lossis ntau dua cov khoom siv ntse. Lub cuab yeej tseem ceeb (tswv) muab lub moos, tus qhev), thiab lub spi interface, uas yog tag nrho cov khoom siv. Thaum ntau tus qhev cov cuab yeej khoom muaj, lawv tau tswj hwm los ntawm kev saib xyuas cov cim.SPI yog tag nrho-duplex, thiab spi tsis txhais tau tias qhov kev txwv ceev, thiab kev siv dav dav tau ncav cuag lossis ntau dua 10 Mbps.

Lub spi interface feem ntau siv plaub lub cim kev sib txuas lus:

SDI (cov ntaub ntawv nkag mus), sdo (cov ntaub ntawv tawm), sck (moos), cs (xaiv)

Miso:Thawj cov cuab yeej tawm tswv yim / cov zis ntawm lub cuab yeej. Tus PIN xa cov ntaub ntawv hauv hom thiab tau txais cov ntaub ntawv hauv hom tseem ceeb.

Mosi:Thawj cov cuab yeej tawm / cov lej tawm ntawm lub ntaus ntawv. Tus PIN xa cov ntaub ntawv hauv hom loj thiab tau txais cov ntaub ntawv los ntawm hom.

Sclk:Moos moos teeb liab, tsim los ntawm cov khoom siv tseem ceeb.

CS / SS:Xaiv cov cim ntawm cov khoom siv, tswj los ntawm cov khoom siv tseem ceeb. Nws ua haujlwm yog "Chip xaiv tus pin", uas xaiv cov khoom siv qhev, tso cai rau cov khoom siv qhev ib leeg thiab zam kev tsis sib haum xeeb ntawm cov kab ntawv.

Nyob rau hauv xyoo tsis ntev los no, kev sib xyaw ua ke ntawm SPI (cov kev sib xyaw rau cov khoom siv hluav taws xob "thiab ORED (organic teeb SPI, paub txog nws cov peev txheej siab, tsis tshua muaj hluav taws xob, thiab cov teeb meem kho vajtse yooj yim, muab cov paib hluav taws xob sib zog, muab cov cim paib ruaj khov rau OLED cov lus qhia. Lub caij no, cov screens, nrog lawv tus kheej-emissive cov khoom, muaj ntau hloov cov duab sib tw, thiab cov ultra nyias tsim rau cov smartphones, waterables, thiab iot pab kiag