Back in the day, we used something like that. Basically we were trying
to bit bang SMBus coms. But that only worked for win2k. Ultimately we
just put a uP on a demo board with a real serial port. You can only
kludge so much before you appear flaky to your customers.
On 6/14/2011 9:56 PM, David J Taylor wrote:
From: <[email protected]>
Sent: Wednesday, June 15, 2011 1:25 AM
To: "Discussion of precise time and frequency measurement"
<[email protected]>
Subject: Re: [time-nuts] usb serial converter
Just a side note here should it ever come up, those usb serial
converters don't work in DOS. DOS doesn't support USB. You can kind of
get them working in the so-called DOS window of 32 bit windows, but
many DOS apps won't work because DOS allowed from direct control of
the port and windows gets in the way.
You might like to try UserPort:
http://www.embeddedtronics.com/design&ideas.html
which allows Windows programs full access to the ports you might need.
I've used it to allow access to the parallel port bits under Windows XP.
Cheers,
David
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