Yes it exists, and does exactly what you want: your applications see a 'real' LPT port that you can write/read at low level like it was a real hardware port. It has a DB25 connector on the end.
I have two of them, they work great. I tried old prom programmers and lots of small PLL loaders etc all ok. and even works fantastic with the old SDR1000 flexradio, that is something that writes assorted bits all over the pins. on Windows devices you will have see an LPT device. Albeit any printer will obviously work it is not a printer gadget. It is really bit wise transparent. The installer creates four extra pages for “Properties” in Device Manager so you can define whatever port type and behavior you need. It is unbelievably complete. You can order or you can make your own clone, all pcb designs all info and firmware and software is free. You need ver 1.7, cypress based for max compatibility and tolerance to OS's applications etc. http://www-user.tu-chemnitz.de/~heha/bastelecke/Rund%20um%20den%20PC/USB2LPT/index.html.en Disclaimer: I have zero affiliation with the seller and also no idea if it will work for you or not. I'm just an happy customer. Luis Cupido ct1dmk On 1/11/2013 1:09 PM, J. L. Trantham wrote:
Not sure where to ask this question but thought I would start here. Is there a way to connect a parallel port to a computer via USB? Not a device that shows up as 'USB Print Support' but, instead, shows up in Device Manager as an LPT port? I have been able to do it via PCMCIA to Parallel Port adapters but I have never found a USB device that would do this. My goal is to connect a parallel port chip programmer via USB but the software only looks for LPT ports. It works with PCMCIA to parallel port adapters but I haven't solved the puzzle yet with a USB connected device. Thanks in advance. Joe _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
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