Kugadzirisa PCB Kugadzira uye Gungano neBoundary Scan Technology

Nhanganyaya kuBoundary-Scan Technology

Boundary-scan, inotsanangurwa neIEEE 1149.1 yakajairwa, inzira yakasanganiswa yekuyedza mabatiro pamabhodhi edunhu akadhindwa (PCBs) padanho rakasanganiswa redunhu (IC). Iyo inozivikanwawo seJTAG (Joint Test Action Group), boundary-scan yakatanga kugadzirwa kuma1980 kugadzirisa miganhu yenzira dzechinyakare dzekuyedza. Kubva pakumisikidzwa kwayo muna 1990, yave chishandiso chakakosha mukugadzira uye kusangana kwePCB yemazuva ano. Boundary-scan tekinoroji iri kuwedzera kugamuchirwa nekuda kwemutengo wakaderera, wakanyanya-kugona kuyedza maPCB akaomarara, kunyanya ayo ane dense zvinhu zvakaita seBGAs (Ball Grid Arrays), izvo zvakaoma kuwana uchishandisa zvakajairwa bvunzo nzira.

KuHighleap Electronic, tinobatanidza tekinoroji yekuongorora miganhu mumaitiro edu ekugadzira nekubatanidza maPCB , zvichigonesa kuyedza kwakakwana uye kunoshanda kwezvinhu zvinoshanda zvakanaka uku tichideredza mitengo nekuoma kwenzira dzekuedza dzechinyakare.

Iwo Matambudziko muChinyakare PCB Kuedzwa

Sezvo zvinhu zvemagetsi zvichiwedzera kuita zvidiki uye zvakazara kuzara, nzira dzechinyakare senge in-circuit bvunzo (ICT) zvipimo zvemeso, kunyanya neakanaka-pitch zvikamu, BGAs, uye akawanda-layer PCBs. Kuedza magadzirirwo aya neakajairwa mu-circuit bvunzo zvigadziriso uye mubhedha-we-zvipikiri masisitimu inova inodhura zvakanyanya, uye kazhinji, hazvigoneke. Apa ndipo apo muganhu-scan inopa yakakosha mukana, sezvo isingade yemuviri bvunzo kuwana kune yega pini paPCB.

Kuunzwa kweborder-scan kwakabvumira mhinduro inoshanda zvakanyanya, kuderedza kudiwa kwezvakaoma bvunzo zvigadziriso uku uchiwedzera kuvharwa kwebvunzo. Boundary-scan kugona kuyedza kubatanidza pakati peICs pasina kuda kupinda kwakananga pini yega yega yakavandudza zvakanyanya mashandiro ekuyedza uye kuvimbika kwePCB dzazvino.

Iyo Boundary-Scan Inoshanda sei

Boundary-scan tekinoroji inoshanda nekudzvanya miganhu-scan maseru mupini yega yega yechishandiso paPCB. Aya maseru anogona kutora data kubva papini kana kumanikidza data pairi. Iyo data yakabatwa inobviswa serially kunze kuburikidza neyeyedzo data kubuda (TDO) pini uye ichienzaniswa neyakatarisirwa mhinduro. Kana paine kusawirirana kukawanikwa, zvinogona kushandiswa kuongorora zvikanganiso zvakaita sepfupi, kuvhura, kana kushaikwa kwezvikamu.

Boundary-scan inobvisa kudiwa kwechinyakare test vectors nekubvumira kupinda kwakananga kumambure paPCB. Izvo zvaigaroda zviuru zvema test vectors kuti aedze sequential logic zvino zvinogona kuwanikwa nemazana mashoma, kuvandudza mashandiro uye kuderedza mitengo yekuyedza. Pamusoro pezvo, inoderedza zvakanyanya nguva inodiwa yekuyedzwa uye inopa hukuru hwekutadza kuongororwa zvichienzaniswa nemaitiro ekuedza echinyakare.

Boundary-Scan yePCB Kugadzira uye Gungano

PaHighleap Electronic, isu tinoshandisa muganhu-scan bvunzo pane ese PCB kugadzira uye gungano matanho. Munguva yekugadzira, muganho-scan unotibvumira kuti tiedze kuwirirana pakati peI ICs pabhodhi pasina kuda maitiro emuviri. Izvi zvinobvisa kudiwa kweakawanda bvunzo zvigadziriso uye zvinoderedza mutengo wakazara wekuyedza, kunyanya mumadhizaini epamusoro.

Kana gungano rePCB rapera, muganhu-scan inoramba ichiita basa rakakosha mukuona kuti chikamu chega chega chakabatana uye chinoshanda. Kugona kuyedza maICs akaomarara, kusanganisira aya ane BGA mapakeji, pasina kuwana yakananga pini yega yega pachikamu inoita kuti tikwanise kuona zvingangove zvakakanganisika pakutanga kwegungano, kuve nechokwadi chekuvimbika kwakanyanya uye kuderedza njodzi yekudhura kugadziridza kana kugadzirisa gare gare mukugadzirwa. .

Zvakanakira Boundary-Scan Technology

1. Kuwedzera Test Coverage: Boundary-scan inopa yakazara bvunzo yekuvhara yekubatanidza pakati peICs, iyo yakakosha kune yakakwirira-density mabhodhi ane yakaoma marongero. Inovandudzawo kuonekwa kwezvikanganiso zvinonetsa kuziva nenzira dzechinyakare dzeICT.
2. Mutengo-Kubudirira: Kusiyana neICT yechinyakare, iyo inoda kuvandudzwa kweanodhura bvunzo magadzirirwo ega ega dhizaini, muganhu-scan inobvisa kudiwa kwezvigadziriso zvakaoma, kudzikisa zvese mari yekuseta uye nguva yekuyedza.
3. Inokurumidza Nguva-ku-Musika: Nemuganho-scan, isu tinogona kutanga kuyedza kare mukugadzira maitiro uye otomatiki yakawanda yechizvarwa chebvunzo, tichimhanyisa kutenderera kwese kwekusimudzira. Izvi zvinotibvumira kuendesa zvigadzirwa nekukurumidza uye kusangana nemusika wakasimba zvinodiwa.
4. Enhanced Diagnostics: Boundary-scan inopa yakadzama yekukanganisa diagnostics, zvichiita kuti zvive nyore kuziva nzvimbo chaiyo uye chimiro chehurema. Izvi zvinogona kutungamira kukugadzirisa nekukurumidza uye zvakanyanya kuvimbika zvigadzirwa zvekupedzisira.
5. Hapana Muedzo Wepanyama Unodiwa: Kugona kuyedza kupindirana uye logic pasina kuda kuferefetwa kwemuviri kunoita kuti muganhu-scan ive chishandiso chakakosha chekuyedza-yakanaka-pitch zvikamu, BGAs, uye akawanda-layer mabhodhi ayo neimwe nzira yakaoma kuwana.

Kubatanidza Boundary-Scan neIn-Circuit Testing (ICT)

Nepo boundary-scan ichipa yakazara interconnect bvunzo, inowanzoshandiswa pamwe chete neICT kuve nechokwadi chekuvharwa kuzere kwezvese magetsi uye zvinoshanda bvunzo. ICT inoedza zvikamu zvega paPCB, zvichiona kushanda kwadzo uye nekuona kuti dzakaiswa nemazvo uye dzakatengeswa. Nekubatanidza ICT nemuganhu-scan, Highleap Electronic inowana yakanyatso kuyedza maitiro ayo anowedzera kuona kukanganisa uye kuderedza nguva yekuyedza.

Kubatanidza muganhu-scan muICT masisitimu zvakare inobvumira kuyedzwa panguva imwe chete yezvese zvinobatana uye zvikamu, kubvisa kudiwa kweakawanda akaparadzana maitiro ebvunzo. Iyi nzira yakabatanidzwa inovandudza kushanda uye inoderedza mari yose yekugadzira.

Boundary-Scan yeKuvandudza Chigadzirwa

Boundary-scan haina kugumira pakuyedzwa kwekugadzira. Iyo zvakare chishandiso chakakosha panguva yekugadzira chikamu chechigadzirwa. Paunenge uchigadzira PCB nyowani, mainjiniya kuHighleap Electronic leverage boundary-scan tekinoroji kuona kuti testability "yakagadzirwa mukati" kubva pakutanga. Nekushandisa muganhu-scan panguva yekutanga nhanho dzebudiriro, zvingangoita dhizaini kukanganisa kunogona kutariswa uye kugadziriswa PCB isati yapera. Izvi zvinoguma nedzokorodzo shoma, kukurumidza prototyping, uye yakawedzera kurongeka maitiro ekugadzira.

Pamusoro pezvo, boundary-scan inotibatsira kuyedza prototypes nekukasira uye nemazvo, kunyangwe kana zvechinyakare bvunzo zvisipo. Izvi zvinonyanya kukosha mumaindasitiri anokurumidza kukurumidza uko nguva-kumusika yakakosha.

Boundary-Scan Applications Beyond Manufacturing

Kupfuura kushandiswa kwayo mukuyedzwa kwekugadzira, muganhu-scan yakakoshawo kune zvimwe zvikamu zvechigadzirwa lifecycle, kusanganisira sevhisi uye kuisirwa munda. Iine boundary-scan, periodic software uye hardware zvigadziriso zvinogona kuitwa kure, zvichibvumira mukati-munda reprogramming ye programmable logic zvishandiso (PLDs) uye flash memory. Kugona uku kunoderedza kudiwa kwemidziyo yebasa yakasarudzika uye kunoita kuti zvikwata zvekuchengetedza zvikwanise kuita bvunzo dzekuongorora uye kugadzirisa zvakanyanya.

Zvakare, kugona kuwana muganho-scan cheni kubva kune yakapfava PC interface inova nechokwadi chekuti iwo mavheta ekuyedza akafanana anoshandiswa muchikamu chekugadzira anogona kushandiswazve nechinangwa chekuongorora, zvichiwedzera kuderedza mutengo uye nguva inodiwa pakugadzirisa munda.

mhedziso

PaHighleap Electronic, isu tinoisa pamberi kuendesa-yemhando yepamusoro, yakavimbika, uye inodhura-inoshanda PCB gungano nekugadzira masevhisi. Iine boundary-scan tekinoroji yakabatanidzwa mune yedu yekuyedza maitiro, isu tinopa yakazara mhinduro inokwidziridza kuvharwa kwebvunzo, inoderedza mitengo yekuyedza, uye nekumhanyisa nguva-kuenda-kumusika kune zvigadzirwa zvako.

Sezvo magadzirirwo ePCB achiwedzera kuoma, kuongorora kwemiganhu kunoita basa guru pakuona kuti kuyedzwa kwakanaka uye kwakakwana kunoshanda. Zvinotibvumira kuona nekugadzirisa matambudziko angangoitika pakutanga, panguva yekugadzira uye muhupenyu hwese hwechigadzirwa, tichiona kuti PCB yega yega yatinogadzira ine mwero wepamusoro.

Nekusarudza Highleap Electronic, uri kubatana nekambani inoshandisa matekinoroji epamberi senge boundary-scan kuti isangane nekuwedzera kuri kudiwa kwezvigadzirwa zvemagetsi zvepamusoro-soro uye zvakavimbika. Takazvipira kukubatsira kukwenenzvera nzira yako yekugadzira, kuderedza mitengo, uye kuunza zvigadzirwa zvemhando yepamusoro kuti utengese nekukurumidza. Rega tikubatsire kuti urambe uri kumberi mumakwikwi emagetsi indasitiri nemhinduro dzekuyedza dzaunoda kuti ubudirire.