Yakajairika interface mhando dzeLCD

Kune akawanda marudzi eLCD interfaces, uye kupatsanurwa kwakanaka kwazvo.Kunyanya zvinoenderana nekutyaira modhi uye kutonga maitiro eLCD.Parizvino, kune akati wandei marudzi eruvara rweLCD kubatana parunhare mbozha: MCU modhi, RGB modhi, SPI modhi, VSYNC modhi, MDDI modhi, uye DSI maitiro.MCU modhi (zvakare yakanyorwa muMPU modhi).Chete TFT module ine RGB interface.Nekudaro, iko kushandisa kwacho kwakawedzera MUC modhi uye RGB modhi, mutsauko unotevera:

1. MCU interface: Murairo uchagadziriswa, uye jenareta yenguva ichabudisa zviratidzo zvenguva yekufambisa vatyairi veCOM uye SEG.

RGB interface: Paunenge uchinyora LCD rejista kuseta, hapana mutsauko pakati peiyo MCU interface uye iyo MCU interface.Musiyano chete manyorerwo akaitwa mufananidzo.

2. Mune iyo MCU mode, sezvo data inogona kuchengetwa mukati meGRAM yeIC uye yozonyorwa kuhwindo, iyi mode LCD inogona kubatanidzwa zvakananga nebhasi MEMORY.

Izvo zvakasiyana kana uchishandisa RGB modhi.Iyo haina RAM yemukati.HSYNC, VSYNC, ENABLE, CS, RESET, RS inogona kubatanidzwa zvakananga kune GPIO port ye MEMORY, uye GPIO port inoshandiswa kutevedzera waveform.

3. MCU interface mode: Ratidza data inonyorerwa kuDDRAM, iyo inowanzoshandiswa pakuratidzira kwemifananidzo.

RGB interface mode: ratidza data haina kunyorwa kuDDRAM, yakananga kunyora skrini, nekukurumidza, inowanzoshandiswa kuratidza vhidhiyo kana animation.

MCU mode

Nekuti inonyanya kushandiswa mumunda we single-chip microcomputers, inotumidzwa zita rayo.Inoshandiswa zvakanyanya mune yakaderera-yekupedzisira uye yepakati-siyana nharembozha, uye chayo chikuru ndechekuti yakachipa.Iyo yakajairwa terminology yeMCU-LCD interface ndeyeIntel's 8080 bhazi standard, saka I80 inoshandiswa kureva iyo MCU-LCD skrini mumagwaro mazhinji.Zvikuru zvinogona kukamurwa kuita 8080 modhi uye 6800 modhi, musiyano mukuru pakati pezviviri ndeye nguva.Iyo data bit transmission ine 8 bits, 9 bits, 16 bits, 18 bits, uye 24 bits.Kubatana kwakakamurwa kuita: CS/, RS (kunyoresa kusarudzwa), RD/, WR/, uyezve mutsara wedata.Chakanakira ndechekuti kutonga kuri nyore uye kuri nyore, uye hapana wachi uye masaini masaini anodiwa.Izvo zvakashata ndezvekuti zvinodhura GRAM, saka zvakaoma kuwana skrini hombe (3.8 kana kupfuura).Kune iyo LCM yeMCU interface, iyo yemukati chip inonzi mutyairi weLCD.Basa guru nderekushandura data / murairo unotumirwa nemuiti weRGB data yepixel yega yega uye kuiratidza pachiratidziro.Iyi nzira haidi poindi, mutsetse, kana furemu wachi.

SPI mode

Inoshandiswa zvishoma, kune mitsara ye3 uye 4 mitsara, uye kuwirirana kune CS /, SLK, SDI, SDO mitsara mina, kubatana kuduku asi kutonga kwepurogiramu kunonyanya kuoma.

DSI mode

Iyi modhi serial bidirectional yakakwirira-kumhanya yekuraira nzira, iyo yekubatanidza ine D0P, D0N, D1P, D1N, CLKP, CLKN.

MDDI modhi (MobileDisplayDigitalInterface)

Qualcomm's interface MDDI, yakaunzwa muna 2004, inovandudza kuvimbika kwenharembozha uye inoderedza mashandisiro emagetsi nekudzikisa waya, iyo inotsiva SPI modhi uye ive yakakwirira-kumhanya serial interface yenhare.Kubatana kunonyanya kuitirwa_data, host_strobe, client_data, client_strobe, power, GND.

RGB mode

Chidzitiro chikuru chinoshandisa mamwe modhi, uye data bit transmission ine 6 bits, 16 bits uye 18 bits, uye 24 bits.Zvinobatanidza zvinowanzo sanganisira: VSYNC, HSYNC, DOTCLK, CS, RESET, uye zvimwe zvinodawo RS, uye imwe yasara mutsara wedata.Zvayakanakira nezvayakaipira ndizvo chaizvo zvakapesana neiyo MCU modhi.