Sorry to disagree David, USB is a BUS. It's specifically designed to be able
to connect multiple devices to it.
https://en.wikipedia.org/wiki/USBJerry Moore
Future Owner
Message: 14
Date: Thu, 06 Aug 2015 19:43:02 +0100
From: David Woolley <
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To:
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Subject: Re: [Elecraft] Developing Products, the Elecraft Way
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On 05/08/15 16:21, Jerry Moore wrote:
> My thoughts would be that all devices use the USB instead of RS232. By
> design the USB is a BUS rather than a point to point protocol as is RS232.
In spite of its name, USB is not a bus. At the physical level, it is
most definitely point to point, and, unlike RS232 cannot be abused into
a bus configuration.
It does have a network layer, although I think that only supports
unicast. RS232 is only a physical layer specification, and not a
complete one. Anyone using the internet before ADSL almost certainly
was using RS232 as the first hop to a global network.
--
David Woolley
Owner K2 06123
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