Iyini i-GPIB (General Purpose Interface Bus)?

Imininingwane Yezobuchwepheshe

I-GPIB Communication Protocol

Izici zikagesi nezemishini

Izici zikagesi ze-GPIB zenza isiqiniseko sokuthi imilayezo ingena ngokucacile. Inezici ezifana nokumelana nomsindo nekhwalithi yesignali, ebalulekile kuzilungiselelo zomsebenzi. Izici zemishini ye-GPIB zifaka izixhumi ezinamandla namakhebuli. Lezi zenziwa ukuthi zihlale ngokusebenzisa ukusetshenziswa okuningi nezimo ezinzima.

Izimiso zokuxhumana ze-GPIB zisebenzisa kokubili ukudluliswa kwedatha okuhambisanayo kanye ne-serial. Ukuxhawula izintambo ezintathu kwe-GPIB kuyisihluthulelo sezingxoxo ezingenaphutha. Iphinde isebenzisa i-ASCII yemiyalo nedatha, iyenze isebenze ngamadivaysi amaningi.

Izinhlobo zezixhumi eziyinhloko ze-GPIB yizixhumi ze-Amphenol ezinamaphini angu-24. Iphinikhodi ye-GPIB isethelwe ukuphatha idatha nemiyalo kahle. Inemigqa emibili yamaphini emisebenzi ehlukene efana nedatha nomhlabathi.

Ukwazi ngezici zikagesi ze-GPIB, izindlela zokudlulisa idatha, nezinhlobo zezixhumi kubalulekile. Kuyasiza ukwenza isiqiniseko sokuthi amadivayisi akhuluma wodwa ngokwethembeka nangempumelelo ezindaweni ezihlukene.

Ukucushwa Kwesistimu kanye ne-Topology

Ukusetha isistimu ye-GPIB kusho ukuhlela amadivaysi ukuze kube nokuxhumana okuphumelelayo. Kunezinhlobo ezimbili ze-topology eziyinhloko: eziqondile noma ezimise okwenkanyezi. Kuzo zombili, idivayisi eyodwa isilawuli, ngokuvamile ikhompyutha, kanti ezinye izinsimbi.

Isilawuli, noma isikhulumi, siqala ukuxhumana futhi siphathe idatha. Amathuluzi, noma abalaleli, benza imisebenzi efana nezilinganiso futhi bathumele idatha emuva.

Ukucushwa okuhle kwe-GPIB kucabangela izici eziningi. Lokhu kufaka phakathi ikheli ledivayisi, ukunqanyulwa, nokugwema ukubonakaliswa kwesignali. I-topology ye-GPIB ekhethiwe ithinta ubude bochungechunge kanye nenani lamadivayisi. Lokhu kungashintsha izilinganiso zokudluliswa kwedatha.

Impumelelo yokufakwa kwe-GPIB incike ekuhleleni ngokucophelela. I-hardware efanele nesofthiwe iqinisekisa ukusebenza kahle. Lokhu kwenza amadivaysi e-GPIB asebenze kahle ngokubambisana.

Izinzuzo ze-GPIB

I-interface ye-GPIB iyinketho ephezulu emhlabeni wokuhlola nokulinganisa. Yaziwa ngokwethembeka kwayo kwe-GPIB, ngenxa yezindinganiso eziqinile. Lokhu kusho ukuthi amadivayisi akhuluma wodwa ngokwethembeka, akunike imiphumela enembile ngaso sonke isikhathi.

I-GPIB eguquguqukayo ikhanya ngamandla ayo okuxhuma kalula izinsimbi eziningi ezahlukene. Lokhu kuvumelana nezimo kukuvumela ukuthi usethe amasistimu ngezindlela eziningi, okwenza ukuhlola kube nezinto ezihlukahlukene kakhulu. Futhi, ukusetshenziswa kwayo okubanzi kuzo zonke izimboni kukhombisa ukuthi iyindinganiso wonke umuntu angathembela kuyo.

Ukuhambisana kwe-GPIB kungenye futhi enkulu. Isebenza kahle ngamadivaysi amaningi, ngisho namadala, awenza ahlale isikhathi eside. Lokhu kusho ukuthi uthola inani elikhulu kubuchwepheshe bakho, ukonga imali ngokuhamba kwesikhathi.

Isivinini se-GPIB siyashesha, siyenza ibe yinhle ekudluliselweni kwedatha okusheshayo. Lokhu kuyisihluthulelo uma ubhekene nedatha eningi ngokushesha. Ukusebenza kwayo okuqinile kwe-GPIB ezindaweni ezinzima nakho kuyenza ibaluleke kumalebhu nezikhungo zokuhlola.

I-GPIB iyintandokazi phakathi kochwepheshe ngenxa yokuthembeka kwayo, ukusetshenziswa kalula, nokwamukelwa okubanzi. Ihlala ihlangabezana nezindinganiso eziphakeme, okuyenza ibe yinketho kwabaningi.

Imikhawulo Nezinselele

I-General Purpose Interface Bus inemikhawulo yayo. Umkhawulo owodwa omkhulu we-GPIB ubukhulu bayo bomzimba. Ingakwazi ukuxhuma inombolo ethile yamadivayisi ngesikhathi esisodwa. Lokhu kwenza kube nzima ukukhulisa uhlelo lwakho.

Enye inkinga imikhawulo yebhasi ye-GPIB enobude bekhebula. Izintambo ezinde zingamosha ukusetha okukhulu. Futhi, idizayini yakudala ye-GPIB ihamba kancane kunezixhumanisi zanamuhla ezisheshayo.

Ukulungisa izinkinga zokuxazulula izinkinga ze-GPIB kunzima. Ukuthola nokulungisa amaphutha kuthatha isikhathi esiningi nekhono. Idizayini eyinkimbinkimbi yebhasi yenza kube nzima ukuxazulula izinkinga kunobuchwepheshe obusha.

Ukuhlola i-GPIB nakho kuyinkimbinkimbi kakhulu. Lokhu kwenza ukuthola nokulungisa izinkinga kuhambe kancane. Njengoba ubuchwepheshe buba ngcono, ukuthola izingxenye ezihambisanayo kuba nzima nakakhulu. Lokhu kukhombisa ukuthi sidinga izixazululo ezintsha noma izindlela zokuqhubekela phambili.

Izindlela Ezihlukile Zesimanje Ze-GPIB

Ubuchwepheshe buqhubeka buthuthuka, buletha izinketho ezintsha zokuthatha indawo ye-GPIB. I-USB iyikhethelo eliphezulu ngobulula bayo nokusebenziseka kalula. Iziguquli ze-GPIB USB zenza kube lula ukuxhuma amasistimu amadala namadivayisi amasha, anikeze ukudluliswa kwedatha okusheshayo.

Olunye ushintsho olukhulu izixazululo ezisekelwe ku-Ethernet. I-GPIB Ethernet ivumela abasebenzisi ukuthi baxhume amathuluzi ngamanethiwekhi, okwenza kube lula ukufinyelela kumadivayisi akude. Lokhu kuhle ngokusetha okudinga ukufinyelela ukude nokudluliswa kwedatha okusheshayo. Iziguquli ze-GPIB kuya ku-Ethernet zisiza ukuxhumanisa amasistimu amadala namanethiwekhi esimanjemanje.

I-PXI (PCI eXtensions for Instrumentation) nayo iyazuza. Yaziwa ngedizayini yayo eyimojuli nokusebenza okuphezulu. Lobu buchwepheshe bulungele izinhlelo zokusebenza ezidinga ukuphathwa nokuhlaziywa kwedatha okusheshayo. Kubonisa ukuthi kubaluleke kangakanani ukugcina amasistimu esebenza kahle ngenkathi usebenzisa ubuchwepheshe bakamuva.