1, FTDI Product Overview
FTDI muaj ntau yam khoom kab, suav nrog USB rau UART / FIFO interface chips, USB rau SPI / I2C interface chips, USB rau parallel interface chips, thiab lwm yam. Lub luag haujlwm tseem ceeb ntawm cov khoom no yog hloov cov cim USB rau hauv lwm hom serial lossis parallel signals rau kev sib txuas lus nrog ntau yam khoom siv. Yog li ntawd, nyob rau hauv ib tug dav dav, FTDI cov khoom tsis ncaj qha siv cov tsoos "ports", tab sis es tsis txhob txuas USB interfaces nrog rau lwm yam interfaces los ntawm lawv cov internal conversion mechanisms.
2, Hom "chaw nres nkoj" siv los ntawm FTDI
Txawm hais tias FTDI cov khoom lag luam tsis ncaj qha mus rau cov chaw nres nkoj lub cev, peb tuaj yeem nkag siab lawv cov "chaw nres nkoj" hom los ntawm cov hauv qab no:
USB interface:
Tag nrho cov khoom FTDI yog tsim los ntawm USB interfaces, txawm tias nws yog USB rau UART, USB rau SPI, lossis lwm hom kev hloov pauv, lawv txuas nrog cov khoos phis tawj lossis lwm yam khoom siv USB los ntawm USB interfaces.
Raws li cov tswv yim / tso zis interface ntawm FTDI cov khoom, USB interface muaj cov yam ntxwv ntawm kev kub ceev, ruaj khov, thiab siv tau yooj yim, uas tuaj yeem ua tau raws li cov ntaub ntawv xa mus rau ntau yam xwm txheej nyuaj.
Virtual COM Port (VCP):
Thaum FTDI's USB rau UART chips txuas nrog lub computer, lawv feem ntau tsim qhov chaw nres nkoj virtual (VCP) hauv kev khiav hauj lwm los ntawm kev tsav tsheb. Qhov chaw nres nkoj virtual no yog sawv cev raws li tus qauv serial chaw nres nkoj (xws li COM1, COM2, thiab lwm yam) hauv kev ua haujlwm, thiab cov neeg siv tuaj yeem sib txuas lus nrog cov khoom siv txuas nrog FTDI nti los ntawm tus qauv sib txuas lus raws tu qauv (xws li RS{{2. }}).
Lub hav zoov ntawm virtual serial ports tshem tawm qhov xav tau rau cov neeg siv kev txhawj xeeb txog qhov nyuaj ntawm USB kev sib txuas lus, vim lawv tsuas yog xav tau kev pab cuam thiab ua haujlwm raws li kev sib txuas lus ib txwm muaj.
Direct Memory Access (DMA) interface (qee yam khoom):
Hauv qee qhov high-end lossis tshwj xeeb daim ntawv thov FTDI cov khoom, DMA interfaces yuav raug txhawb. Lub DMA interface tso cai rau cov khoom siv sab nraud tuaj yeem xa cov ntaub ntawv ncaj qha mus rau lub cim xeeb yam tsis tas yuav muaj kev cuam tshuam CPU, txhim kho kev ua tau zoo thiab ceev ntawm cov ntaub ntawv hloov chaw.
Txawm li cas los xij, nws yuav tsum tau muab sau tseg tias tsis yog tag nrho cov khoom FTDI txhawb DMA interfaces, thiab cov yeeb yam no tsuas yog tshwm sim hauv qee qhov kev ua tau zoo, cov khoom lag luam siab.
3, Daim ntawv thov scenarios rau FTDI chaw nres nkoj hom
FTDI cov khoom siv dav siv hauv ntau qhov xwm txheej uas yuav tsum tau hloov pauv USB interface, suav nrog tab sis tsis txwv rau cov hauv qab no:
Embedded system development:
Hauv kev txhim kho cov txheej txheem embedded, feem ntau yuav tsum tau sib txuas lus microcontrollers (MCUs) los yog lwm yam embedded processors nrog computers. FTDI's USB rau UART / SPI / I2C interface chips muab kev daws teeb meem USB yooj yim rau cov khoom siv no.
Industrial automation:
Hauv kev lag luam automation, ntau yam khoom siv tseem siv cov kev sib txuas lus sib txuas (xws li RS-232, RS-485, thiab lwm yam). Los ntawm FTDI converters, cov cuab yeej no tuaj yeem sib txuas lus yooj yim thiab sib txuas nrog cov khoos phis tawj niaj hnub USB.
Consumer electronics:
Hauv kev lag luam ntawm cov neeg siv khoom siv hluav taws xob, xws li kev txhim kho ntawm smartphones, ntsiav tshuaj, thiab lwm yam khoom siv, FTDI cov khoom kuj tau siv dav rau kev nthuav dav thiab hloov pauv ntawm USB interfaces.
Advanced Driving Assistance System (ADAS):
Qhov nce ntawm Advanced Driver Assistance Systems (ADAS) hauv kev lag luam tsheb tau ua rau muaj kev siv dav dav ntawm FTDI cov khoom lag luam hauv kev sib txuas lus hauv tsheb. USB interface nti ntawm FTDI tuaj yeem txhawb nqa ntau yam kev sib txuas lus raws tu qauv (xws li UART, SPI, I2C, thiab lwm yam), muab kev sib txuas lus ruaj khov rau cov sensors, controllers, thiab lwm yam khoom siv hauv ADAS systems.
