Uqhagamshelwano lwetshiphu emsebenzi kwintambo yeVGA, isixhobo esikhulu sokuba neminipc

Ukufika kweebhodi ze-SBC ezinje ngeRaspberry Pi ezivenkileni kuye kwathetha ukuba kwimali encinci sinekhompyuter encinci esebenzayo. Kodwa i-Raspberry Pi ayisiyiyo kuphela ibhodi esincedayo ekwenzeni ikhompyuter. Iibhodi ezinjengeOdroid okanye iOrange Pi ziyasivumela ukuba senze i-minipc. Ingxaki ngala mabhodi kubasebenzisi abaninzi kukuba abanayo i-VGA port yokubeka iliso, oko kuthetha ukuba abasebenzisi abaninzi abanako ukuyinyusa ngokulula njengekhompyuter eqhelekileyo.

Le ngxaki ingasombululwa ngendlela elula kakhulu nge Uhlobo lwentambo ebizwa ngokuba yi-HDMI kwintambo yeVGA. Le ntambo inesidibanisi sendoda eyindoda kwelinye icala kunye ne-VGA port kwelinye icala esinokuthi sinxibelelane nayo nayiphi na iliso okanye umabonwakude okhutshiweyo. Uguquko olwenziwe lolu hlobo lwentambo lubonisa kuphela.

Ngaba kubalulekile ukuba nale ntambo?

Ukusetyenziswa kwale ntambo kuncinci kwengxaki kwaye kunjalo Unxibelelwano olunjalo aluxhasi i-HDMI imveliso yesandi, njengoko besesitshilo ngaphambili, ke ukuba sidibanisa intambo kwiRaspberry Pi, umzekelo, kuya kufuneka sithathele ingqalelo ukuba intambo ayizukukhupha sandi kwaye kufuneka sisebenzise imveliso yebhodi yeaudiyo. Into ebalulekileyo ekufuneka siyigcinile engqondweni ukuba sifuna ukusebenzisa ikhebula nomabonwakude okanye ukubek'esweni ngezithethi.

Ngayiphi na imeko, intambo enjalo kuthetha ukuba nakho ukuba nekhompyuter encinci kwimisebenzi elula ngaphandle kwesidingo sokuya kwikhompyuter yesibini eziza kuthi zisidibanise nebhodi yeRaspberry Pi okanye enye igajethi efanayo nge-intanethi okanye ngonxibelelwano lwe-telematic.

Kwimarike sinokufumana iimodeli ezahlukeneyo kunye neempawu ezahlukeneyo ze-HDMI kwintambo yeVGA. Nangona kunjalo, naluphi na uphawu alusebenzi kuba sinokuthi singene kwintambo engalwenzi uguquko. Oku kuya kuthetha ukuba ayizukusebenza kwaye ke ngoko siya kuba nentambo engenamsebenzi. Ke ngoko kufuneka silumke ngentambo esiyithengayo. Ndincoma ngokwam sebenzisa iintambo ezithengiswayo okanye ezithengwa kwiivenkile ezinkulu ezikwi-intanethi okanye ngewaranti elungileyo. Ngexesha elithile elidlulileyo ndathenga i-HDMI kwikhebula leVGA kumaqonga athengisa iimveliso ezivela ngaphandle kweSpain. Intambo enjalo yayingasebenzi kwaye imbuyekezo yakho ayenzekanga. Oku akwenzeki kwiivenkile ezinje ngeAmazon ezivavanye iimveliso kunye nesiqinisekiso esiqinisekisa ukubuyiselwa imali kwimeko yokungasebenzi.

Zeziphi iimodeli ze-HDMI kwiintambo zeVGA esinokuzifumana kwintengiso?

Enye yeemodeli ezinokufikeleleka ngakumbi nezisebenzayo esinokuzifumana kwimarike Yintambo ye-HDMI eya kwiVGA cable kwiAmazon Basics. Ukuba yeyivenkile enje ngeAmazon, intambo ivavanywe kakuhle kwaye isebenza kuwo onke amatyala, ke sinesiqinisekiso esithile sokuba intambo ye-HDMI kwivenkile yeVGA iyakusebenza. Kwelinye icala, ixabiso lentambo aligqithi kwi-euro ezingama-7, ngaphezulu kwexabiso elinokufikeleleka ukuba sithathela ingqalelo iziphumo kunye nokusebenza enokusinika kona.

Ukuba siza kusebenzisa intambo yeebhodi ze-SBC ezinamandla ngaphezu kweRaspberry Pi, Kuya kufuneka sijonge i-hdmi kwikhebula le-vga elinokuthi likhuphe okanye lihambise izigqibo eziphezulu. Ukuba sifuna ukuvelisa kwakhona isandi, oko kukuthi, sebenzisa intambo kunye nebhodi ye-sbc njengomdlali we-multicenter player, ke olona khetho lulungileyo Imodeli kaRankie. Intambo yeRankie HDMI kwintambo yeVGA yimodeli ukongeza ekuxhaseni izigqibo eziphezulu, ikwaqulathe Izibuko le3.5mm lokuphuma komsindo kunye nezibuko le-usb lokutshaja. Ixabiso lalesi sixhobo li-euro ezingama-8, ixabiso eliphantsi kakhulu kwaye elifikelelekayo kwiipokotho ezininzi.

Inketho yesithathu iya kuba yiadaptha ngqo, iadaptha enokuguqula imveliso ye-hdmi iye kwi-vga. Olu khetho luya kufuna ikhebula le-VGA yendabuko, into esiza kuba nayo ukuba siza kuyisebenzisa ekubekeni iliso. Ngokunokwenzeka lolona khetho lubalaseleyo kuzo zonke izihlanganisi ezinolu hlobo Akukho mveliso ifunyenweyoIsinxibelelanisi esingabandakanyi ukuphuma komsindo kodwa esenza incinci kwaye iyaphatheka. Inkampani enye inayo Akukho mveliso ifunyenweyo eyenza ukuba ilawulwe ngakumbi kunesixhumi ngqo.

Kutshanje inguqulelo yale HDMI kwintambo yeVGA yenziwe ukuba yenze uqhagamshelo lwe-HDMI luguqulwe kunye izibuko elincinane lokubonisa. Olu hlobo lweentambo lujolise kwizixhobo zeApple, iilaptops kunye neekhompyuter zedesktop ezivela kwinkampani yakwaApple. Ngokuqhelekileyo abafiki kunye ne-HDMI port kwaye le adaptha ivumela i-minidisplay port ukuba isetyenziswe njengemveliso ye-HDMI. Into embi ngolu hlobo lweentambo kukuba abadli ngokusebenza kakuhle hardware libre kwaye ke ayizukusinceda ukuba siqhagamshele ibhodi yeRaspberry Pi ngemonitha kunye nelaptop yeApple. Kwimeko nayiphi na into, enye enye inketho esinayo xa siguqula isignali ye-HDMI.

Indlela yokujongana neengxaki zeRaspberry Pi

Nje ukuba sinentambo, kufuneka sidibanise yonke into kwaye siyivule. Ndiyabulela kwi-HDMI kwikhebula leVGA esinokuthi, njengoko besitshilo, sibe nekhompyuter encinci kunye nebhodi ye-SBC kunye nokubeka esweni. Kuyinyani ukuba ngaphandle kwezinye zeentambo zangaphambili, Sinokuba neengxaki ezihlala zisonjululwa ngokuguqula iiparameter ezithile zesoftware.

Ndiye ndakhathazwa zezi ngxaki ziimodeli zokuqala zeRaspberry Pi kwaye kuyinyani ukuba zezona zininzi kodwa zinokuvela nakwezinye iimodeli zebhodi ye-sbc. Ukusombulula oku kufuneka hlela ifayile yoqwalaselo ifunyenwe ngaphakathi kwifolda yeBoot. Nje ukuba sivule ifayile kufuneka jonga i-hdmi_force_hotplug kunye ne-hdmi_drive lines (Ukuba azikho emva koko kufuneka sizenze) kwaye siziguqule zibe zezi zilandelayo:

hdmi_force_hotplug=1
hdmi_drive=2

Mhlawumbi siya kuyifumana le migca kunye nophawu "#", ukuba kunjalo, kufuneka sisicime eso simboli ukuze inkqubo ithathele ingqalelo loo khowudi. Sigcina uhlengahlengiso kwaye siqalise kwakhona ibhodi yeRaspberry, emva koko kufuneka ibonise umfanekiso ekubekeni esweni. Kwimeko yokungasebenzi, asinakuwuncomela umgca "hdmi_safe = 1".

Intambo ye-HDMI kwikhebula le-VGA yintambo eluncedo kakhulu, intambo eyimfuneko ngokubonakalayo ukuba sisebenza nababekeli esweni kunye noomabonakude. Kodwa kufuneka sikhumbule ukuba ezo ntambo ziguqula kwicala elinye. Ngokufanelekileyo, Ngezi ntambo asizokwazi ukusebenzisa ukuguqula isiginali ukusuka kwiVGA iye kwisiginali ye-HDMI. Ke kwabo babecinga ukusebenzisa i-VGA port yekhompyuter yabo kwiTV okanye esweni nge-HDMI, ezi ntlobo zeentambo azisebenzi.