19 Aug
2012
19 Aug
'12
8:54 p.m.
On 08/19/2012 02:14 PM, Tony Duell wrote:
I don't quite see it like that. Most USB devices seem to come with a
driver (OK, memroy sticks don't, but just about everything else does).
Of that driver is not avaialble for USB host machine/OS then you are
likely to have problems.
That does happen, yes. I myself never experience it because I don't
buy USB devices that aren't "standardized", i.e. show up as a mass
storage device or a HID (keyboard, mouse, etc) device, unless I already
know it will work on whatever platform I have in mind.
(what a concept...being an informed buyer...out of style, I know)
Like RS232, it is, strictly speaking. Also like
RS232, the standard is
widely ignored in at least some respects (I've got almost as many
male-to-female extender cables with host-port male on one end and
host-port female on the other as I do devices; such cables should not
exist at all). Also like RS232, the hardware is only part of the
problem; the software layers above are usually at least as important.
Agreed mostly...The USB standard isn't "creatively interpreted"
anywhere near as badly as RS232. It's not even in the same league in
that department. That's the only thing I don't like about RS232. A few weeks abck I was given a rather nic 'Balck
Box' RS232 tester. I
don't mean a breakout box, although one of those came with it. It mean
oen of those things that grabes the data on the TxD and RxD lines, grabs
the modem control lines at the same time, and so on. I was told that
nobody uses RS232 any more. But I can certainly use it...
Well...whoever told you that is a moron, plain and simple.
ObCC. That unit contains a Z180 CPU, a Z8530 serial
chip (yes it handles
synchronous data too), 128K bytes of RAM, a 64K byte PEROM, and a bit of
TTL. SO I guess it's a classic computer.
Oh that could even be repurposed for even more fun things!
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA