Re: Test Serial Ports Program on Vista?
Al Getz wrote:
>
> Bernie Ryan wrote:
> >
> > Al Getz wrote:
> > >
> > > And yes, the typical part number is 16550 not 16650,
> > > but i've been reading about the older 8250 on up to 16750
> > > and apparently the higher numbers always default to the
> > > lower number parts functionality, so i guess you could
> > > expect to get the same out of a 16650 as you do with
> > > a 16550 but with extra features, and the 16750 would
> > > have what the 16650 has but with more extra features.
> >
> > Hey Al
> >
> > I thought you were a electronic technician.
> >
> > Why don't you build a USB interface then you can
> >
> > use USB code to run instead of the old serial ports.
> >
> >
> > Bernie
> >
> > My files in archive:
> > WMOTOR, XMOTOR, W32ENGIN, MIXEDLIB, EU_ENGIN, WIN32ERU, WIN32API
> >
> > Can be downloaded here:
> > <a
> > href="http://www.rapideuphoria.com/cgi-bin/asearch.exu?dos=on&win=on&lnx=on&gen=on&keywords=bernie+ryan">http://www.rapideuphoria.com/cgi-bin/asearch.exu?dos=on&win=on&lnx=on&gen=on&keywords=bernie+ryan</a>
>
> Hi there Bernie,
>
>
> I am designing a piece of hardware that works external to the PC
> and i wanted to use the serial port because it will work with
> older computers too and it's going to be rather inexpensive, while
> the USB interface adds cost to the project which i want to avoid.
> If the end user wishes to use USB rather than serial and they dont
> mind a little extra cost then they are welcome to purchase a serial
> to USB adapter which have come down significantly in price recently.
>
>
> Al
>
> E boa sorte com sua programacao Euphoria!
>
>
> My bumper sticker: "I brake for LED's"
>
Yeah, USB is much more complicated in hardware than in software (and more
expensive, but it's been getting better).
The thing is, advanced operating systems like Windows XP and above, and Linux,
and BSD, have mechanisms in place to make sure that hardware resources can be
shared among applications. So you can't program them directly. In most ways,
that's a good thing.
Not so much for a programmer, though.
Al -- I looked quickly at the PCOMM website, and I didn't see any licensing fees
or anything. I didn't download the zip file though. Is there something in the zip
file or something?
--
A complex system that works is invariably found to have evolved from a simple
system that works.
--John Gall's 15th law of Systemantics.
"Premature optimization is the root of all evil in programming."
--C.A.R. Hoare
j.
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