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[News] AOS4 on A1 VideoANN.lu
Posted on 16-Oct-2003 15:44 GMT by Rassilon AKA Lewis Brunton18 comments
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As it says in the title: AOS4 shown booting on the A1 (Please note that debug option is enabled, this is shown in the video as modem activity). Web site with video's
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Comment 1itix16-Oct-2003 14:00 GMT
Comment 2Anders Kjeldsen16-Oct-2003 14:07 GMT
Comment 3Lando16-Oct-2003 14:41 GMT
Comment 4Rassilon AKA Lewis Brunton16-Oct-2003 14:44 GMT
Comment 5Don CoxRegistered user16-Oct-2003 14:53 GMT
Comment 6itix16-Oct-2003 14:56 GMT
Comment 7Anonymous16-Oct-2003 15:51 GMT
Comment 8Elwood16-Oct-2003 15:51 GMT
Comment 9Joe "Floid" Kanowitz16-Oct-2003 16:07 GMT
Comment 10NihilVor16-Oct-2003 16:18 GMT
Comment 11Anonymous16-Oct-2003 16:22 GMT
AOS4 on A1 Video : Comment 12 of 18ANN.lu
Posted by Joe "Floid" Kanowitz on 16-Oct-2003 17:26 GMT
In reply to Comment 11 (Anonymous):
> Isn't there a bit more? A command is sent to query the installed
> firmware.

ATI^M

> That dumps more or less information, depending on modem, probably
> at low speed.

ATI1^M ; ATI2^M ... ATIn^M

But actually, this is where you're off.
With RS-232 kit, either the *modem* is smart enough to autodetect port speed, or it isn't. Now, maybe XP starts sending commands at 1200BPS and works its way up, but no other Windows does, and any delays would more likely be pessimistic (and poorly threaded) timeouts in terms of how long it waits for a response.

Like the way some flavors of '9x, with DHCP enabled, will hang the boot process for an extra minute or three in vain hope of obtaining a lease if the network cable's unplugged...

> Followed by the initialization commands for the detected modem.

ATZ^M

AT&F^M

ATwhateveritisit'slessthanakilobyte^M

> What about detecting the correct seril speed?

See above.

> And I'd assume that, at least with some modems, the initialization
> sequence includes commands that take a longer to process (like
> resetting to factory defaults), thus holding up the computer a
> further second or two. Or not, if that part is in a thread.

Actually, fairly instantaneous.

Now, if you have a USB modem, either port speeds are 'obvious' (set by the standard), you're getting what you need to know probing the device anyway, or it's a winmodem and needs practically no configuration anyway. (HCF modems would seem to require the most setup traffic, technically.)
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List of all comments to this article (continued)
Comment 13nasu16-Oct-2003 18:00 GMT
Comment 14I'm not Eva16-Oct-2003 18:14 GMT
Comment 15Peter Gordon16-Oct-2003 18:21 GMT
Comment 16T_Bone16-Oct-2003 20:03 GMT
Comment 17MIKE17-Oct-2003 14:09 GMT
Comment 18BrianK17-Oct-2003 19:12 GMT
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