From: Adam Sampson <ats@offog.org>
To: linux-hams@vger.kernel.org
Subject: Re: USB converters and old hardware (Baycom in particular)
Date: Thu, 15 Apr 2010 21:05:37 +0100 [thread overview]
Message-ID: <y2ask6web1q.fsf@cartman.at.offog.org> (raw)
In-Reply-To: 4BC75156.9060907@radagast.org
Dave Platt <dplatt@radagast.org> writes:
> I'm not sure how this is being done... but it may not be possible at
> all in a USB dongle!
You might be pleasantly surprised. The FTDI USB-to-serial chips have a
bit-banging mode that's designed for doing this sort of thing, where you
can tell it to just clock a sequence of bits out to the pins (or read
one in) at a fixed rate. It'd need some software fiddling, of course,
and if you're going to that much effort I'd be tempted just to stick a
microcontroller in the way to give the modem a more convenient serial or
USB interface...
--
Adam Sampson <ats@offog.org> <http://offog.org/>
next prev parent reply other threads:[~2010-04-15 20:05 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-08 5:08 USB converters and old hardware Phil
2010-04-08 10:20 ` Mike McCarthy, W1NR
2010-04-09 1:09 ` Phil
2010-04-13 14:42 ` walter harms
2010-04-13 17:52 ` IT2 Stuart Blake Tener, USNR
2010-04-14 5:37 ` Douglas Cole
2010-04-14 15:18 ` IT2 Stuart Blake Tener, USNR
2010-04-15 1:51 ` Phil
2010-04-15 14:49 ` IT2 Stuart Blake Tener, USNR
2010-04-15 17:47 ` USB converters and old hardware (in general) Dave Platt
2010-04-15 17:48 ` USB converters and old hardware (Baycom in particular) Dave Platt
2010-04-15 19:22 ` Tomi Manninen
2010-04-15 20:05 ` Adam Sampson [this message]
2010-04-15 20:41 ` Dave Platt
2010-04-15 15:55 ` USB converters and old hardware Niall Parker
2010-04-15 16:56 ` IT2 Stuart Blake Tener, USNR
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