KA655 boot PROM errors

From: Paul Thompson <thompson_at_mail.athenet.net>
Date: Sun Jan 13 09:41:10 2002

On Sun, 13 Jan 2002, Carlini, Antonio wrote:

> > jkunz_at_unixag-kl.fh-kl.de wrote:
> >t 9e lists this codes as:
> >42 20051269 Check_for_intrs ***
> >C6 2004D2F0 SSC_powerup *********
> >53 2004E8C0 TOY clock repeat_test_250ms_ea Tolerance ***
> >
> >TOY clock is OK, as I expect the NiCd akku to be ded. But
> >"Check_for_intrs" and "SSC_powerup" are not that explanative to me.

> SSC is the System Support Chip and it sounds as
> though the diags are finding something wrong
> with it.

Your T 9E test seems to confirm something I have suspected, that the diags
on my QBUS DECsystem 5400 are the Mayfair VAX tests with some extra MIPS
ones added on. (My T 9e has the same tests for those codes as yours just
with a different ROM address as one might suspect)

I found a ssc.h file for the KA650 in /usr/sys/machine/ on my Ultrix
DECsystem 5400. My version of Ultrix does not mention the 655. It says
that there is a TOY register on the SSC.

Just guessing, but perhaps this is related to your errors. There seem to
be other registers in there that are probably init'd from values in the
NVRAM as well, and maybe a corrupt NVRAM could cause your errors...

 * VAX3600 (ka650) System Support Chip (SSC) registers

        u_long ssc_toy; /* time of year clock reg */

        u_char ssc_cpmbx; /* Console Program Mail Box: Lang & Hact */
        u_char ssc_terminfo; /* TTY info: Video Dev, MCS, CRT & ROM flags*/

-- 
Received on Sun Jan 13 2002 - 09:41:10 GMT

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