13 Aug
2010
13 Aug
'10
11:13 p.m.
Doesn't it have the OBP, you can also get the contants of the NVRAM or
program it using the built in forth
On 8/13/10 10:16 PM, "dwight elvey" <dkelvey at hotmail.com> wrote:
Date: Fri, 13 Aug 2010 14:57:08 -0400
From: mcguire at neurotica.com
To:
Subject: Re: SparcBook Tadpole
On 8/12/10 10:08 AM, dwight elvey wrote:
If /dev/eeprom or /dev/nvram exists, you may be able to use that. Try
to dump the contents via that interface and see if it actually maps to
the hardware. You can try "od -x /dev/nvram" to do a hex dump.
Hi Dave
No eeprom command :(
I tried the od command. not real interesting. Mostly nul and some ascii
strings. Things like /vmunix and RAMDram and stuff. I'd guess it is
some of the info extracted from the NVRAM on boot.
Dwight
> Under
SunOS, you can use the program called "eeprom" to dump out most
> of the important contents. As far as restoring it, I'm not sure about
> that, as I don't know what ROM-based code the very early SPARCbooks use.
>
> One way to do it might be to read it out using an EPROM programmer.
> My Data I/O supports the MK48T02, for example.
I think I can read it with my programmer. At least with an adapter to make
it think it is a 2716.
I tried the "eeprom" and it didn't work :(
This must be before someon realized it was a good idea. Acording
to the history page I saw, the SparcBook was relatively early in
the history of things.
Do you think I could use the program adb with /dev/nvram?
Could I use it to display and or edit the nvram values?