then lets 100 from japan and sell the i think its many who would buy then i would but 2 1 for my 320x240 and one matbe for the future if i get a 640x400 lcd
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| USB 2 LPT Converter http://forum.lcdinfo.com/viewtopic.php?f=8&t=427 |
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| Author: | ssyspro [ Sun Nov 30, 2003 18:15 ] |
| Post subject: | USB 2 LPT Converter |
I was just curious if anybody has tried to connect a display to a USB 2 LPT converter like the ones available at CableMax. Please let me know if this is successful or not before I purchase. If nobody has tried yet I will but would like to know if a attempt has already been made. Link to site with converters >>>> http://www.cablemax.com/search-1-2.cfm?ss=usb+printer |
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| Author: | Henri [ Mon Dec 01, 2003 20:06 ] |
| Post subject: | |
USB to LPT adapters often create a "software" LPT port that is only usable for printers and I don't remember anyone reporting success using these with parallel lcds. So my guess would be they won't work but who knows maybe they would... |
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| Author: | Relampago [ Mon Dec 01, 2003 20:17 ] |
| Post subject: | |
there are some converters that are basing on cypress an2135/31.... The Problem: Only available in japanese |
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| Author: | kapone [ Fri Apr 22, 2005 9:26 ] |
| Post subject: | |
then lets 100 from japan and sell the i think its many who would buy then i would but 2 1 for my 320x240 and one matbe for the future if i get a 640x400 lcd
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| Author: | jeremy [ Sat Apr 01, 2006 4:38 ] |
| Post subject: | |
I know this is an old post but it is fairly important. If you have access to a cypress programmer and know someone that can make smd pcbs then you can make a fully emulated usb->parallel port adapter. Check it out here. |
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| Author: | Michael [ Sat May 19, 2007 16:27 ] |
| Post subject: | |
jeremy wrote: I know this is an old post but it is fairly important.
If you have access to a cypress programmer and know someone that can make smd pcbs then you can make a fully emulated usb->parallel port adapter. Check it out here. Having used this firmware (usb2lpt2.iic) with one if these boards http://3layer.eu/development.html I could hardly recommend this converter. In one test, using WinIO/LPT and a KS based 128x64 LCD (with CMD/Data delays removed) I could achieve around 300fps but with the above converter this dropped to around 35fps, and in some cases ~2fps Bastelecke's converter is fine if all you're doing is basic printing or JTAG/PIC programming but with anything requiring a stream of data then forget it. |
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