Ubwoko busanzwe bwa LCD

Hariho ubwoko bwinshi bwa LCD, kandi ibyiciro nibyiza cyane.Ahanini biterwa nuburyo bwo gutwara no kugenzura uburyo LCD.Kugeza ubu, hari ubwoko bwinshi bwamabara LCD ihuza kuri terefone igendanwa: uburyo bwa MCU, uburyo bwa RGB, uburyo bwa SPI, uburyo bwa VSYNC, uburyo bwa MDDI, nuburyo bwa DSI.Uburyo bwa MCU (nabwo bwanditse muburyo bwa MPU).Gusa module ya TFT ifite interineti ya RGB.Ariko, porogaramu nuburyo bwinshi bwa MUC nuburyo bwa RGB, itandukaniro nuburyo bukurikira:

1. Imigaragarire ya MCU: Itegeko rizaba rifite decode, kandi generator yigihe izatanga ibimenyetso byigihe cyo gutwara abashoferi ba COM na SEG.

Imigaragarire ya RGB: Iyo wanditse LCD igenamiterere, nta tandukaniro riri hagati ya MCU na MCU.Itandukaniro gusa nuburyo ishusho yanditse.

2. Muburyo bwa MCU, kubera ko amakuru ashobora kubikwa muri GRAM y'imbere ya IC hanyuma akandikwa kuri ecran, ubu buryo LCD irashobora guhuzwa na bisi YIBUKA.

Biratandukanye iyo ukoresheje uburyo bwa RGB.Ntabwo ifite RAM y'imbere.HSYNC, VSYNC, BISHOBOKA, CS, GUSUBIZA, RS irashobora guhuzwa neza nicyambu cya GPIO cyo KWIBUKA, kandi icyambu cya GPIO gikoreshwa mukwigana imiterere yumuraba.

3. Uburyo bwa Interineti ya MCU: Kwerekana amakuru yandikiwe DDRAM, ikoreshwa kenshi mugukomeza kwerekana amashusho.

Uburyo bwa interineti ya RGB: kwerekana amakuru ntabwo yanditswe kuri DDRAM, kwandika ecran yerekana, byihuse, akenshi bikoreshwa mukwerekana amashusho cyangwa animasiyo.

Uburyo bwa MCU

Kuberako ikoreshwa cyane mubijyanye na microcomputer imwe-chip, yitiriwe izina ryayo.Ikoreshwa cyane muri terefone zigendanwa zo hasi kandi ziciriritse, kandi ibintu nyamukuru biranga ni uko bihendutse.Ijambo risanzwe rya MCU-LCD ni interineti ya 8080 ya bisi ya Intel, bityo I80 ikoreshwa mu kwerekana ecran ya MCU-LCD mu nyandiko nyinshi.Ahanini birashobora kugabanywa muburyo bwa 8080 nuburyo 6800, itandukaniro nyamukuru hagati yibi ni igihe.Ikwirakwizwa rya data biti ifite 8 bits, 9 bits, 16 bits, 18 bits, na 24 bits.Ihuza rigabanijwemo: CS /, RS (guhitamo kwiyandikisha), RD /, WR /, hanyuma umurongo wamakuru.Ibyiza nuko igenzura ryoroshye kandi ryoroshye, kandi nta saha nibimenyetso bya syncronisation bikenewe.Ikibi nuko bisaba GRAM, biragoye rero kugera kuri ecran nini (3.8 cyangwa irenga).Kuri LCM yimbere ya MCU, chip y'imbere yitwa LCD shoferi.Igikorwa nyamukuru nuguhindura data / itegeko ryoherejwe na nyiricyubahiro muri RGB data ya buri pigiseli hanyuma ukayerekana kuri ecran.Iyi nzira ntisaba ingingo, umurongo, cyangwa ikadiri yamasaha.

Uburyo bwa SPI

Ikoreshwa gake, hariho imirongo 3 n'imirongo 4, kandi ihuza ni CS /, SLK, SDI, SDO imirongo ine, ihuza ni rito ariko kugenzura software biragoye.

Uburyo bwa DSI

Ubu buryo bukurikirana ibyerekezo byihuta byihuta byoherejwe, guhuza bifite D0P, D0N, D1P, D1N, CLKP, CLKN.

Uburyo bwa MDDI (MobileDisplayDigitalInterface)

Imigaragarire ya Qualcomm MDDI, yatangijwe mu 2004, itezimbere terefone igendanwa kandi igabanya gukoresha ingufu mu kugabanya insinga, izasimbuza uburyo bwa SPI kandi ihinduka interineti yihuta ya seriveri igendanwa.Ihuza ni host_data, host_strobe, umukiriya_data, umukiriya_strobe, imbaraga, GND.

Uburyo bwa RGB

Mugaragaza nini ikoresha uburyo bwinshi, kandi amakuru yoherejwe nayo afite bit 6, 16 bits na 18 bit, na 24 bits.Kwihuza muri rusange birimo: VSYNC, HSYNC, DOTCLK, CS, GUSUBIZA, kandi bimwe bisaba RS, naho ibindi ni umurongo wamakuru.Ibyiza nibibi biratandukanye rwose nuburyo bwa MCU.