Tsev > Xov xwm > Ntsiab lus

FT800 Thiab FT801 Kaw Cov Lus Qhia Txog

Nov 03, 2018

FT800 thiab FT801 kov peev xwm


Lub FTDI YUAV video controllers muab qis nqi daws teeb meem kos duab. Ntxiv nrog rau cov duab, kov cov khoom siv thiab lub suab tso tawm muab ib qho kev ua tiav tib neeg tshuab rau sab nraud.

Tsab ntawv teev npe no piav qhia qhov sib txawv ntawm qhov kev sib tiv tauj tiv thaiv ntawm FT8x0 thiab qhov cuab yeej kov hauv lub FT8x1.

Kev siv cov khoom FTDI hauv kev txhawb nqa lub neej thiab / lossis daim ntawv thov kev ruaj ntseg tsuas yog siv los ntawm tus neeg siv qhov kev txaus ntshai, thiab tus neeg siv pom zoo los tiv thaiv, thim nyiaj thiab tuav FTDI raug mob ntawm ib qho thiab txhua yam kev puas tsuaj, ntxhuav, suits lossis cov nqi siv los ntawm kev siv.


1 Taw qhia

TSWV YIM, los yog Embedded Video Engine, yog ib tsev neeg ntawm ICs tsim los tswj TFT cov lus. Tsis tas li ntawd

kom tswj cov zaub, lub tsev neeg EVE kuj muaj xws li embedded yug rau kov tswj thiab

suab tso tawm.

Tus ntaus ntawv tswj tau ib qho tsis tshua muaj bandwidth SPI los yog I2C interface uas cia kom ze rau txhua yam

microcontroller nrog ib qho chaw SPI los yog I2C chaw nres nkoj. Yooj yim thiab tsawg-pin-suav microcontrollers tau tam sim no

muaj ib tug neeg siv high-end graphical neeg siv interface los ntawm kev siv lub tswv yim EVE.

Cim mus EVE, dluab tau ua rau ib kab los ntawm kab hauv paus. Qhov no tshem tawm qhov xav tau ib qho

sab nraud, thiab kim, cov duab tsis sib haum. TSEEM txuas ncaj qha ntawm MCU thiab cov vaj huam sib luag hauv LCD.

Tus neeg siv Interface yog tswj los ntawm MCU thiab cov lus qhia los ntawm lub tswv yim EVE. Lub

integrated PWM audio processor muab ib leeg-channel suab thiab cov ntaub ntawv playback. Kaw tawm tswv yim

yog xyuas los ntawm kev tuav tswj kev tiv thaiv kev sib txuas ntawm FT800 li los yog ib tug xib fwb I2C rau ib tug

capacitive kov maub los nrog FT801. Kev sib cuam tshuam rau tag nrho peb kev tswj ntawm FT800 thiab

FT801 - video, kov thiab suab - yog ua tiav los ntawm ib qho kev sib tshuam microcontroller.

-1.1 Cov Kws Kho Mob

Cov FT800 li pab txhawb nqa cov ntxaij touch resistures thiab muab kev sib txuas ncaj qha rau X thiab Y

inputs. Cov FT801 pab txhawb kev sib txuas mus rau ib qho kev tswj xyuas sab nraud capacitive uas yog

feem ntau kev mus rau hauv lub vaj huam sib luag hauv LCD. Hos cov yees duab thiab cov suab haujlwm zoo tib yam

ntawm ob lub series, daim ntawv no muab ib qho kev sib piv ntawm cov kev sib txawv ntawm cov kov.

Raws li teev hauv Table 1.1, hauv qab no, qhov sib txawv ntawm cov FT800 thiab FT801 yog qhov txawv xwb

kov interface. Lub FT800 ua raws cov tseem FT800 nrog rau kev tso nyiaj ncaj qha X, Y analog. Lub FT801,

Txawm li cas los xij cov tswv yim analog nrog ib tus tswv I2C uas yog hais rau ob sab nraud

capacitive kov controllers: Azoteq thiab focaltech. Zoo hmoo, ib qho ntawm cov kev sib tham sab nraud

controllers yog feem ntau muaj kev koom nrog kev sib tham nrog LCD. Tus maub los IC feem ntau ua

tsis tas yuav tau muab cais ntxiv rau qhov tsim.

Kho vajtse Feature FT800 (tsis kam) FT801 (capacitive)
Yees duab Qhia txog Qhia txog
Suab Qhia txog Qhia txog
Kov Interface Ncig X ± thiab Y ± Kuv 2 C mus rau lwm tus neeg xws li
Kov Phuam Integrated mus rau FT800 Sab nraud, feem ntau tau muab tso rau
lub LCD vaj huam sib luag sib dhos
Txawb Cov Kaw Cov Tub Ntxhais Integrated Azoteq thiab focaltech

Table 1.1 - TSWV YIM Txiag Hardware Comparison


Lub MCU, LCD thiab lub suab sib txuas tau zoo tib yam ntawm ob kab lus. Tsuas yog kov

interface yog txawv los ntawm kev sib ntxiv ntawm ib qho chaw sab nraud.

image

Daim Duab 1.1 - FT800 - Kev Tiv Thaiv Kaw Muaj Kev Taus

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Daim duab 1.2 - FT801 - Kev Sib Txuas Txuas Kev Sib Txuas


-1.2 kov nta

FT801 EVE controllers muaj ob hom kev kov. Compatibility hom ntim cov FT800

tiv thaiv kev kov hauj lwm thiab txhawb cov kev taw qhia tib qho. Extended hom pub rau 5

simultaneous kov cov ntsiab lus uas yuav pab tau thaum panning thiab zooming ib qho duab. Txhua

feature sau tseg hauv Table 1.2, hauv qab no.

Kov Feature FT800
tiv taus
FT801
capacitive
compatibility hom
FT801
capacitive
ncua hom
Simultaneous Cov Ntsiab Lus 1 1 5
Calibration Muaj Muaj Tsis yog
Sij Hawm Zuj Zus Kwv yees. 1,000 Hz 80-100 Hz 80-100 Hz
Kev Teem Haujlwm Tawm
One-Shot
Ncej-Sync
Nruam
Tawm
One-Shot
Nruam
Tawm
One-Shot
Nruam
Tsheej ntawm kov Muaj Tsis yog Tsis yog
Kos duab cmd_sketch cmd_csketch cmd_csketch
Ntawv cim npe Tib tag ib zaug Tib tag ib zaug Thawj kov yog tagged -
seem ntawm
simultaneous touches
siv cov hauj lwm
Hwjchim Hom Inactive
POWERDOWN
Sab nraud ntawm sab nraud yog
nquag ua
POWERDOWN
Sab nraud ntawm sab nraud yog
nquag ua
POWERDOWN

Cov lus 1.2 - TSEEM CEEB TO NIAM TXIV

-1.3 Kev Caj Npab Nyias

Muaj ntau hom kev sib txawv ntawm kev siv cov lus qhia txog kev siv tshuaj thiab kev sib txawv

maub los ICs yog tsim rau cov khoom sib txawv. FT801 txhawb nqa Focaltech FT5x06

series los yog Azotech IQS5xx series ntawm kov controllers.

-1.3.1 Kev Txawj Sib Ntsig

Nrog kev sib txeeb ua ke, ib lub capacitor nyob ntawm txhua qhov kev sib txuas ntawm kab thiab kab sab nraum.

Ib qho kev coj yog tsav. Nqa ib tug ntiv tes ze rau ntawm qhov chaw pauv hauv cheeb tsam electrostatic

thiab txhua tus ntawm lub capacitors yog ntsuas, cia rau kev paub tseeb thiab qhov chaw ntawm ntau dua

ib qho kov. Qhov no yog kev txhawb nqa los ntawm Azoteq.

-1.3.2 Kev Tshaj Yus Tus Kheej

Nrog ib txoj kev zoo sib xws li kev sib txeeb ua ke, ntawm no cov kab thiab txhua txoj haujlwm

ntawm nws tus kheej. Thaum nws muaj peev xwm muab lub teeb liab zoo, tsuas yog ib qho taw tes kov tau xwb

hnov. Qhov no yog kev txhawb nqa los ntawm Focaltech cov khoom siv.