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Message from discussion Running Suns with no keyboard but using both rs232
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Joe Michel-Angelo  
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 More options Dec 9 1988, 7:46 am
Newsgroups: comp.sys.sun
From: tekbspa!tss!...@uunet.uu.net (Joe Michel-Angelo)
Date: 9 Dec 88 12:46:41 GMT
Local: Fri, Dec 9 1988 7:46 am
Subject: Re: Running Suns with no keyboard but using both rs232
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mcvax!cs.aber.ac.uk!...@uunet.uu.net:

> If the machines do not have a keyboard, they look to ttya for console (so
> say the documents) input .  We want to stop them. The observed fault is
> that they apparently boot (light patterns all ok etc) but no matter how
> long you wait they never properly come on service...

Chances are le' Sun is looking for a signal to come up on the RS232 port
and it's halting in monitor/prom.

You can tell le' Sun to use a tty port, which one, and even what baud
rate. But as far as I know ... You can't tell the machine it doesn't have
a head! How would you feel without a head!??!

If your problem is that you simply don't have a terminal, then make a
strange cable.  Otherwise, you be oudda luck...(afaik)

----

BTW: here's how you change the console/tty baud rate (did I ever post this
information here??!)

        Uucp: sun!jgath
        Arpa: jg...@sun.com
        Subject: Re:  eeprom setting of scc baud rate

        For port A:

        Location 0x58 determines default 9600 (00) or user specified (12)

        Locations 0x59 and 0x5a define the baud rate

                 300         01       2c
                 600         02       58
                1200         04       b0
                2400         09       60
                4800         12       c0
                9600         25       80
                19200        4b       00
                38400        96       00

        Joe Angelo -- Senior Systems Engineer/Systems Manager
        at Teknekron Software Systems, Palo Alto 415-325-1025
        j...@tss.com - uunet!tekbspa!joe - tekbspa!...@uunet.uu.net


 
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