Chii chinonzi SPI Interface? SPI Inoshanda Sei?

Chii chinonzi SPI Interface? SPI Inoshanda Sei?

SPI inomiririra Serial Peripheral interface uye, sezvinoreva zita racho, serial peripheral interface. Motorola yakatanga kutsanangurwa pama processor ayo eMC68HCXX-series.SPI ibhasi rekutaurirana rinomhanya zvikuru, rine duplex yakazara, uye rinobata mitsara mina chete papini yechip, richichengetedza pini yechip, ukuwo richichengetedza nzvimbo yePCB layout, zvichiita kuti zvive nyore, zvinonyanya kushandiswa muEEPROM, FLASH, real-time clock, AD converter, uye pakati pedhijitari signal processor nedhijitari signal decoder.

SPI ine nzira mbiri dzemaster neslave. Sisitimu yekutaurirana yeSPI inofanira kusanganisira mudziyo mumwe chete (uye mumwe chete) mukuru uye mudziyo mumwe chete kana kupfuura weslave. Mudziyo mukuru (Master) unopa wachi, mudziyo weslave (Slave), uye SPI interface, izvo zvese zvinotangwa nemudziyo mukuru. Kana paine michina yakawanda yeslave, inodzorwa nemasaini echip akakodzera.SPI imhando ye "full-duplex", uye SPI haitsananguri muganho wekumhanya, uye kushandiswa kwakajairika kunogona kusvika kana kutopfuura 10 Mbps.

Iyo SPI interface inowanzo shandisa mitsara mina yezviratidzo pakutaurirana:

SDI (Kupinda Data), SDO (Kubuda Data), SCK (Wachi), CS (Sarudza)

MISO:Pini yekutanga yekuisa/kuburitsa mudziyo kubva kumudziyo. Pini iyi inotumira data mumodhi uye inogamuchira data mumodhi huru.

MOSI:Pini yekutanga inoburitsa/inopinza mudziyo kubva pamudziyo. Pini inotumira data mumodhi huru uye inogamuchira data kubva pamodhi.

SCLK:Chiratidzo chewachi chinogadzirwa nemidziyo mikuru.

CS / SS:Sarudza chiratidzo kubva mumudziyo, unodzorwa nemuchina mukuru. Unoshanda se "chip selection pin", iyo inosarudza mudziyo wevaranda wakatarwa, zvichibvumira mudziyo mukuru kutaurirana nemudziyo wevaranda chaiwo wega uye kudzivirira kusawirirana pamutsetse wedata.

Mumakore achangopfuura, kusanganiswa kwetekinoroji yeSPI (Serial Peripheral Interface) neOLED (Organic Light-Emitting Diode) displays kwave chinhu chikuru muindasitiri yetekinoroji. SPI, inozivikanwa nekushanda kwayo nesimba, kushandisa simba shoma, uye dhizaini iri nyore yehardware, inopa kutumira kwechiratidzo kwakasimba kune displays dzeOLED. Panguva iyi, ma OLED screens, ane hunhu hwawo hwekuzviburitsa, high contrast ratios, wide viewing angles, uye magadzirirwo akatetepa zvakanyanya, ari kuwedzera kutsiva ma LCD screens echinyakare, achive mhinduro inofarirwa yemafoni, ma wearables, uye zvishandiso zveIoT.