Kodi SPI ndi chiyani? Kodi SPI imagwira bwanji?

Kodi SPI ndi chiyani? Kodi SPI imagwira bwanji?

SPI imayimira mawonekedwe osokoneza seri ndipo, monga momwe dzina limanenera, mawonekedwe osokoneza serheral. Motorola adafotokozedwa koyamba pamndandanda wa McM68hcxx.SPI ndikuthamanga kwambiri, kakhoma kakang'ono kolumikizirana, ndipo malo anayi okhala ndi chip pini, ndikusunga malo a chip, pomwe mukusunga malo a PCB, ndikugwiritsa ntchito EEPRORY, Flash, Clock yeniyeni, yotembenuza, komanso pakati pa purosesa ya digito ndi digito siginecha.

SPI ili ndi master awiri ndi mitundu yaukapolo. Njira yolumikizirana imafunikira kuphatikiza imodzi (ndi imodzi yokha) ya Master ndi zida imodzi kapena zingapo kapena zingapo. Chida chachikulu (Master) amapereka koloko, kachilomboka (kapolo), ndi mawonekedwe a SPI, omwe amayambitsidwa ndi chipangizo chachikulu. Zida zambiri zikakhalapo, zimayendetsedwa ndi zizindikiro za chip.SPI ndi Huplex, ndipo SPI siyimafotokoza malire, ndipo kukhazikika kwambiri kumatha kufikira kapena kupitirira 10 Mbps.

Mawonekedwe a SPI nthawi zambiri amagwiritsa ntchito mizere inayi yolumikizana:

SDI (kulowa kwa deta), sdo (zotulutsa), sck (sck), cs (sankhani)

Misa:Chinsinsi chachikulu / pini yotulutsa kuchokera ku chipangizocho. Pini imatumiza deta munjira ndikulandila deta munjira yayikulu.

Moski:Chipangizo choyambirira cha Chipangizo / PIN PINE kuchokera ku chipangizocho. Pini imatumiza deta munjira yayikulu ndikulandila deta kuchokera kumayendedwe.

Sclk:Signal Chizindikiro cha Sclack, chopangidwa ndi zida zazikulu.

CS / SS:Sankhani chizindikiro kuchokera pazida, zoyendetsedwa ndi zida zazikulu. Imagwira ngati chithunzi cha chip "chomwe chimasankha chipangizo cha akapolo, chololeza chida cha Master kuti mulumikizane ndi chipangizo china chokha ndikupewa mikangano pa mzere wa data.

M'zaka zaposachedwa, kuphatikiza kwa spi (serifielral inforface) ndi our-oud (opepuka) kuwunika) zowonetsera (zowoneka bwino) zikuwoneka bwino kwambiri mu malonda aluso. SPI, yodziwika bwino chifukwa cha kuchuluka kwake, kugwiritsa ntchito mphamvu zochepa, komanso kapangidwe kosavuta kwa Hardware, kumapereka gawo lokhazikika la oundana. Pakadali pano, zojambula zodulira, zomwe zimapangitsa kuti zikhale zowoneka bwino, makondo awo owoneka bwino kwambiri, ndi mapangidwe owonda kwambiri, ndikusinthanitsa zojambula za LCD, ndikuwonetsa njira yowonetsera mafoni, zolaula, ndi zida zapamwamba.