Mitundu yodziwika bwino ya LCD

Pali mitundu yambiri yolumikizira ma LCD, ndipo magawo ake ndiabwino kwambiri.Makamaka zimadalira pamayendedwe oyendetsa ndi kuwongolera kwa LCD.Pakadali pano, pali mitundu ingapo yolumikizirana ndi LCD pa foni yam'manja: mawonekedwe a MCU, mawonekedwe a RGB, mawonekedwe a SPI, mawonekedwe a VSYNC, mawonekedwe a MDDI, ndi mawonekedwe a DSI.MCU mode (yolembedwanso mu MPU mode).Ndi gawo la TFT lokha lomwe lili ndi mawonekedwe a RGB.Komabe, kugwiritsa ntchito kumafanana ndi MUC ndi RGB mode, kusiyana kuli motere:

1. Mawonekedwe a MCU: Lamulo lidzasinthidwa, ndipo jenereta ya nthawi idzapanga zizindikiro za nthawi yoyendetsa madalaivala a COM ndi SEG.

Mawonekedwe a RGB: Polemba zolembera za LCD, palibe kusiyana pakati pa mawonekedwe a MCU ndi mawonekedwe a MCU.Chosiyana ndi momwe chithunzicho chimalembedwera.

2. Mu mawonekedwe a MCU, popeza deta ikhoza kusungidwa mkati mwa GRAM ya IC ndiyeno kulembedwa pazenera, LCD yamtunduwu imatha kulumikizidwa mwachindunji ku basi ya MEMORY.

Ndizosiyana mukamagwiritsa ntchito RGB mode.Ilibe RAM yamkati.HSYNC, VSYNC, ENABLE, CS, RESET, RS ikhoza kulumikizidwa mwachindunji ku doko la GPIO la MEMORY, ndipo doko la GPIO limagwiritsidwa ntchito kutengera mawonekedwe a mawonekedwe.

3. MCU mawonekedwe mode: Deta yowonetsera imalembedwa ku DDRAM, yomwe nthawi zambiri imagwiritsidwa ntchito powonetsa zithunzi.

Mawonekedwe a RGB: deta yowonetsera sinalembedwe ku DDRAM, chinsalu cholembera mwachindunji, chachangu, chomwe chimagwiritsidwa ntchito powonetsa kanema kapena makanema.

MCU mode

Chifukwa chimagwiritsidwa ntchito kwambiri popanga ma single-chip microcomputer, amatchulidwa pambuyo pake.Amagwiritsidwa ntchito kwambiri m'mafoni otsika komanso apakati, ndipo mbali yake yaikulu ndi yotsika mtengo.Mawu omveka a mawonekedwe a MCU-LCD ndi Intel's 8080 basi standard, kotero I80 amagwiritsidwa ntchito kunena za MCU-LCD chophimba m'mabuku ambiri.Makamaka akhoza kugawidwa mu 8080 mode ndi 6800 mode, kusiyana kwakukulu pakati pa awiriwa ndi nthawi.Kutumiza kwa data bits kuli ndi 8 bits, 9 bits, 16 bits, 18 bits, ndi 24 bits.Kulumikizana kumagawidwa kukhala: CS/, RS (register kusankha), RD/, WR/, ndiyeno mzere wa data.Ubwino wake ndikuti kuwongolera ndikosavuta komanso kosavuta, ndipo palibe mawotchi ndi ma synchronization amafunikira.Choyipa ndichakuti zimawononga ndalama za GRAM, chifukwa chake ndizovuta kupeza chophimba chachikulu (3.8 kapena kupitilira apo).Kwa LCM ya mawonekedwe a MCU, chip chamkati chimatchedwa LCD driver.Ntchito yaikulu ndikusintha deta / lamulo lotumizidwa ndi wolandirayo kukhala RGB deta ya pixel iliyonse ndikuwonetsera pazenera.Izi sizifuna mawotchi, mzere, kapena mawotchi.

SPI mode

Imagwiritsidwa ntchito mochepa, pali mizere ya 3 ndi mizere 4, ndipo kugwirizana ndi CS /, SLK, SDI, SDO mizere inayi, kugwirizana kuli kochepa koma kulamulira kwa mapulogalamu kumakhala kovuta kwambiri.

DSI mode

Izi mode chosalekeza bidirectional mkulu-liwiro kufala lamulo mode, kugwirizana ali D0P, D0N, D1P, D1N, CLKP, CLKN.

MDDI mode (MobileDisplayDigitalInterface)

Mawonekedwe a Qualcomm MDDI, omwe adayambitsidwa mu 2004, amathandizira kudalirika kwa foni yam'manja ndikuchepetsa kugwiritsa ntchito magetsi pochepetsa ma waya, omwe alowa m'malo mwa SPI ndikukhala mawonekedwe othamanga kwambiri amafoni.Kulumikizana kumakhala makamaka host_data, host_strobe, kasitomala_data, kasitomala_strobe, mphamvu, GND.

RGB mode

Chophimba chachikulu chimagwiritsa ntchito mitundu yambiri, ndipo kutumiza kwa data bits kulinso ndi 6 bits, 16 bits ndi 18 bits, ndi 24 bits.Kulumikizana nthawi zambiri kumaphatikizapo: VSYNC, HSYNC, DOTCLK, CS, RESET, ndipo ena amafunanso RS, ndipo ena onse ndi mzere wa data.Ubwino ndi kuipa kwake ndizosiyana ndendende ndi mawonekedwe a MCU.