My impression is that old software that make their own timings
and devices depend on those timings may have issues due to the
fact that there is a delay from write to LPT to bits really appearing on
the DB25, albeit small but not that much predictable as it has
Windows plus USB in between. That being the case hardly has any solution
whatever USB interface implementation... except with a real LPT.
The stuff I've used was kind of asynchronous spi etc. I had zero issues
with that.
Luis Cupido.
ct1dmk.
On 1/11/2013 11:38 PM, [email protected] wrote:
Hi Luis
No problem, and it's much better anyway to hear from someone who's used
it:-)
I only took a quick look at the web site before and didn't see the self
build instructions at that time, but having seen the SMD chip he's using I
think asking for a price might be safer:-)
I see from your earlier comments that you've used it ok with old
programmers but on the page you've linked do he doesn't recommend that, have you
come across any problems with this?
Regards
Nigel
GM8PZR
In a message dated 11/01/2013 20:15:15 GMT Standard Time, [email protected]
writes:
Hi Nigel,
I missed your post before my reply to Joe, so I made no mention to your
suggestion.
I have those and they are not a printer thing, they really
work low level. The list of programmers and bit oriented stuff
that was reported to work well is big and surely there are more
stuff that works that is not in the list...
Joe, take a look a check if you app is reported good:
http://www-user.tu-chemnitz.de/~heha/bastelecke/Rund%20um%20den%20PC/USB2LPT
/liste.en.htm
Cheers.
Luis Cupido
ct1dmk.
On 1/11/2013 5:03 PM, [email protected] wrote:
Hi Joe
As per other replies I was going to suggest this won't work because USB
adapters are for printing only and my solution would be to buy an old
486 or
early pentium laptop and use that, I've bought several over the past few
years for really silly money on Ebay for this very reason, but I have
come
across what might be a possible solution....
_http://www-user.tu-chemnitz.de/~heha/bastelecke/Rund%20um%20den%20PC/USB2LP
T/index.html.en_
(http://www-user.tu-chemnitz.de/~heha/bastelecke/Rund%20um%20den%20PC/USB2LPT/index.html.en)
I can't vouch for this, just found it via Google, and although the
drivers
are downloadable you need to buy the adapter and have to email for
prices,
but it might be worth a try.
My preferrred solution would still be the old laptop:-)
Regards
Nigel
GM8PZR
In a message dated 11/01/2013 13:09:45 GMT Standard Time, [email protected]
writes:
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
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