Kodi SPI Interface ndi chiyani? Kodi SPI Imagwira Ntchito Motani?

Kodi SPI Interface ndi chiyani? Kodi SPI Imagwira Ntchito Motani?

SPI imayimira mawonekedwe a Serial Peripheral ndipo, monga momwe dzinalo likusonyezera, mawonekedwe ozungulira. Motorola idafotokozedwa koyamba pama processor ake a MC68HCXX.SPI ndi basi yothamanga kwambiri, yokhala ndi duplex, yolumikizirana yolumikizana, ndipo imakhala ndi mizere inayi yokha pa pini ya chip, kupulumutsa pini ya chip, ndikusunga malo opangira PCB, kupereka mwayi, womwe umagwiritsidwa ntchito mu EEPROM, FLASH, wotchi yeniyeni, chosinthira AD, komanso pakati pa purosesa ya digito ndi decoder ya digito.

SPI ili ndi mitundu iwiri ya master ndi akapolo. Dongosolo loyankhulirana la SPI liyenera kuphatikiza chida chimodzi (ndi chimodzi chokha) ndi chipangizo chimodzi kapena zingapo za akapolo. Chipangizo chachikulu (Mbuye) chimapereka wotchi, chipangizo cha kapolo (Kapolo), ndi mawonekedwe a SPI, omwe onse amayambitsidwa ndi chipangizo chachikulu. Pamene zida zambiri za akapolo zilipo, zimayendetsedwa ndi zizindikiro za chip.SPI ndi duplex yathunthu, ndipo SPI simatanthawuza malire othamanga, ndipo kukhazikitsidwa kwanthawi zonse kumatha kufika kapena kupitilira 10 Mbps.

Mawonekedwe a SPI nthawi zambiri amagwiritsa ntchito mizere inayi yolumikizirana:

SDI (Data Entry), SDO (Deta output), SCK (Clock), CS (Sankhani)

MISO:Pini yolowetsa / zotulutsa kuchokera pachidacho. Pini imatumiza deta mumayendedwe ndikulandila deta mumayendedwe akulu.

MOSI:Chotulutsa Choyambirira cha Chipangizo/pini yolowetsa kuchokera pachidacho. Pini imatumiza deta mumayendedwe akuluakulu ndikulandira deta kuchokera kumayendedwe.

SCLK:Chizindikiro cha wotchi ya seri, yopangidwa ndi zida zazikulu.

CS / SS:Sankhani chizindikiro kuchokera pazida, zoyendetsedwa ndi zida zazikulu. Zimagwira ntchito ngati "pini yosankha chip", yomwe imasankha kachipangizo kamene kalikonse, kulola kuti chipangizochi chizitha kulankhulana ndi chipangizo cha kapolo chokha ndikupewa mikangano pa mzere wa deta.

M'zaka zaposachedwa, kuphatikiza kwaukadaulo wa SPI (Serial Peripheral Interface) ndi zowonetsera za OLED (Organic Light-Emitting Diode) kwakhala kofunikira kwambiri pantchito zaukadaulo. SPI, yomwe imadziwika chifukwa chakuchita bwino kwambiri, kugwiritsa ntchito mphamvu pang'ono, komanso kapangidwe kake kosavuta ka Hardware, imapereka mawonekedwe okhazikika azizindikiro za OLED. Pakadali pano, zowonera za OLED, zokhala ndi zinthu zodziyimira pawokha, kusiyanitsa kwakukulu, ma angles owoneka bwino, ndi mapangidwe owonda kwambiri, akulowa m'malo mwa zowonera zachikhalidwe za LCD, kukhala njira yowonetsera yomwe amakonda kwambiri mafoni, zovala, ndi zida za IoT.