JTAG adapter yog dab tsi?
JTAG adapter yog dab tsi?

Video: JTAG adapter yog dab tsi?

Video: JTAG adapter yog dab tsi?
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JTAG (Joint Test Action Group) yog qhov sib txuas siv rau kev debugging thiab programming cov cuab yeej xws li micro controllers thiab CPLDs lossis FPGAs. Qhov tshwj xeeb interface no tso cai rau koj los daws qhov teeb meem kho vajtse yooj yim hauv lub sijhawm tiag tiag (piv txwv li emulate). Nws tuaj yeem tswj tau ncaj qha rau lub moos cycles muab rau micro maub los ntawm software.

Ib yam li ntawd, koj tuaj yeem nug, JTAG connector ua li cas?

JTAG yog ib qho khoom siv sib xws interface uas muab koj lub computer nrog txoj kev sib txuas lus ncaj qha nrog cov chips ntawm lub rooj tsavxwm. Nws yog Ameslikas tsim los ntawm ib lub koom haum, Koom Tes (European) Test Access Group, nyob rau hauv nruab nrab-80s los hais txog qhov nyuaj ntawm kev ntsuam xyuas cov ntawv luam tawm Circuit Board (PCBs).

Tsis tas li ntawd, JTAG saw yog dab tsi? JTAG chain . Ib lossis ntau lub cuab yeej siv los ntawm qhov programming thiab / lossis cov ntaub ntawv teeb tsa tau dhau los ntawm lub cuab yeej mus rau lub cuab yeej los ntawm Pawg Sib Koom Tes Ua Haujlwm ( JTAG ) Kev Tshawb Fawb Kev Tshawb Fawb (BST) circuitry. A JTAG chain tuaj yeem muaj tsuas yog ib qho khoom siv xwb.

Kuj kom paub yog, JTAG yog dab tsi nyob rau hauv embedded system?

Joint Test Action Group ( JTAG ) yog ib lub npe siv rau kev debugging, programming, thiab kuaj interface feem ntau pom ntawm microcontrollers, ASICs, thiab FPGAs. Cov txheej txheem no txhais cov Test Access Port (TAP) maub los logic siv nyob rau hauv processors nrog JTAG interfaces.

JTAG debugger ua haujlwm li cas?

Tus neeg siv tau tuaj yeem cuam tshuam nrog lub debugger los ntawm lub qhov rais hais kom ua ntawm HyperTerminal. Cov debugging MCU yog ces tswj tau lub hom phiaj ntawm lub JTAG chaw nres nkoj. Peb cov code khiav ntawm lub debugger xa ib tug series ntawm cov khoom mus rau lub JTAG interface, uas tom qab ntawd khaws nws hauv cov lus qhia / cov ntaub ntawv sau npe ntawm cov JTAG.

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