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Forum › Echipamente Discoteca - Disco Equipments › Laser projectors › Are cineva o schema de laser si program pentru usb ???
Are cineva o schema de laser si program pentru usb ???
Laser show, grafica laser , totul despre proiectoare laser. Realizare, reparatii etc
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romangeorge



Joined: Apr 09, 2007
Posts: 18

PostPosted: 07/Aug/2007 2:39 pm    Post subject: Are cineva o schema de laser si program pentru usb ??? Reply with quote

Ma intereseaza si pe mine o schema pentru laser pe usb si un program free cu care sa mearga pentru ca cele pe lpt imi merg dar nu mai am lpt la calculator
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bubu



Joined: Aug 15, 2006
Posts: 7

PostPosted: 08/Aug/2007 8:53 am    Post subject: Re: Are cineva o schema de laser si program pentru usb ??? Reply with quote

este delicata povestea... usb-ul nu iti garanteaza deloc un transfer rate si din cauza asta nu se poate folosi direct ci mai trebuie facuta un buffer.

Si eu sunt interesat si am sa fac niste probe. Sa-mi spui daca gasesti si tu ceva.

DAniel
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Pret



Joined: Aug 09, 2007
Posts: 1

PostPosted: 09/Aug/2007 2:18 pm    Post subject: Re: Are cineva o schema de laser si program pentru usb ??? Reply with quote

USB-ul iti poate garanta transferul.
Exista 4 moduri de functionalre: Interrupt, Bulk, Command si Isochronous.

In Isochronous mode, USB-ul trimite un numar fix de octeti cu o recurenta bine stabilita. Consecinta este ca acest mod nu are CRC check. Dar asta o poti rezolva la nivel de soft.
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daniel



Joined: Feb 22, 2005
Posts: 130

PostPosted: 09/Aug/2007 4:39 pm    Post subject: Re: Are cineva o schema de laser si program pentru usb ??? Reply with quote

foarte bun comentariul. de fapt modul isochronous este special facut pentru un gen similar de aplicatii cum sunt audio streaming, video streaming etc.

Cred ca este destul de potrivit cerintei de fata deoarece nu este neaparat necesar un crc. Iar in full speed USB 2.0 rata de transfer poate ajunge la 1023 KB/sec ceea ce este mai mult deca suficient pentru cateva dac-uri de X-Y si intensitate culori.
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DJCC



Joined: Mar 10, 2007
Posts: 8

PostPosted: 04/Sep/2007 10:30 pm    Post subject: Re: Are cineva o schema de laser si program pentru usb ??? Reply with quote

Si eu as fi interesat sigur ca merge si usb pentru ca am vazut la cineva asa ceva si mi se parea ok cu toate ca el le folosea putin altfel. Daca are cineva o schema l-as multumi
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daniel.R



Joined: Jan 07, 2009
Posts: 24

PostPosted: 15/Jan/2009 11:35 pm    Post subject: Re: Are cineva o schema de laser si program pentru usb ??? Reply with quote

www.dioda.ro/Forums/vi...t=164.html
aici ai un adaptor usb/lpt cu interfata ilda
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romangeorge



Joined: Apr 09, 2007
Posts: 18

PostPosted: 16/Jan/2009 9:38 pm    Post subject: Re: Are cineva o schema de laser si program pentru usb ??? Reply with quote

Multumesc foarte mult
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