Kushanda nemakomputa ekare kunowanzo kuoma nekuti haaenderani nehardware yemazuva ano. Kana iwe waona kuti mitengo yekare CRT (cathode ray chubhu) maTV uye monitors yakakwira munguva pfupi yapfuura, unogona kutenda retro mutambo wemitambo uye retro komputa nharaunda. Haisi chete yakaderera-resolution mifananidzo inotaridzika zvirinani paCRTs, asi mazhinji echikuru masisitimu haagone kuburitsa vhidhiyo inogamuchirwa pamamonitor azvino. Imwe mhinduro ndeye kushandisa adapta kushandura yekare RF kana composite vhidhiyo chiratidzo kune yazvino chiratidzo. Kubatsira mukuvandudza maadapter akadai, dmcintyre yakagadzira iyi vhidhiyo yekuvhura yeoscilloscopes.
Ndichiri kushandura vhidhiyo, dmcintyre yakasangana nenyaya apo iyo TMS9918 vhidhiyo chip haina kukonzeresa chiyero nekuvimbika. Izvi zvinoita kuti zvive zvisingakwanisi kuongorora masaini evhidhiyo, izvo zvingave zvakakosha kune avo vari kuedza kuzvishandura. Iyo Texas Instruments TMS9918 VDC (Vhidhiyo Display Controller) yakatevedzana machipisi ane mukurumbira zvikuru uye anoshandiswa mumasisitimu echikuru akadai seColecoVision, MSX makomputa, Texas Instruments TI-99/4, zvichingodaro. . Iyo USB yekubatanidza inokutendera iwe kukurumidza kutora mafungu pane akawanda oscilloscopes, kusanganisira dmcintyre's Hantek oscilloscopes.
Vhidhiyo inokonzeresa yedunhu inonyanya kudhirowa uye inoda chete mashoma akasanganiswa maseketi: Microchip ATmega328P microcontroller, 74HC109 flip-flop, uye LM1881 vhidhiyo yekuyananisa splitter. Zvese zvikamu zvinotengeswa kune yakajairwa breadboard. Kana iyo dmcintyre kodhi yaiswa kuATmega328P, zviri nyore kushandisa. Batanidza tambo kubva kuhurongwa kuenda kuVhidhiyo Trigger kupinza uye tambo kubva kuVhidhiyo Trigger kubuda kune inoenderana monitor. Wobva wabatanidza tambo ye USB kune yekuisa ye oscilloscope. Gadzirisa chiyero kuti ikonzerese pamupendero unotevera une chikumbaridzo chingangoita 0.5V.
Nekuseta uku, iwe unogona ikozvino kuona chiratidzo chevhidhiyo pane oscilloscope. Kudzvanya inotenderedza encoder pavhidhiyo inokonzeresa mudziyo unochinja pakati pekukwira nekudonha kweiyo trigger siginecha. Shandura encoder kuti ufambise mutsara wekusimudza, dzvanya uye ubate encoder kuti uise patsva mutsara wekubvisa kusvika zero.
Iyo haiite chero shanduko yevhidhiyo, inongobvumira mushandisi kuti aongorore chiratidzo chevhidhiyo chinobva kuTMS9918 chip. Asi ongororo iyi inofanirwa kubatsira vanhu kugadzira mavhidhiyo ekushandura anowirirana kuti abatanidze makomputa ekare kune mamonitor azvino.
Nguva yekutumira: Nov-17-2022