Trouble booting UP2000+

Peter Petrakis peter.petrakis at gmail.com
Mon May 18 13:45:16 UTC 2009


You know you might just be able to load SRM directly from the SROM. I keep
thinking about using DBM first because of the notion that I usually flashed the
machine from there.

I remember there's a shortcut to loading DBM if the the FSB
is still installed, rename the file to resemble an SRM image for your machine
type and place that on the dos floppy for FSB to use. It'll read and execute
it just like it would anything else.

If someone where to do this could you please relay to the list what the
offsets are for the installed roms? I think SRM was @ 60000 and alphabios
was at 120000 but I can't remember for sure. I suppose the SROM source
code would have the offsets hard coded somewhere...

BTW I posted the EBSDK on alphalinux.org, it's been on bitkeeper forever
so why not...

http://www.alphalinux.org/firmware/ebsdk/ebsdk-unix.tar

http://www.alphalinux.org/firmware/ebsdk/ebsdk_expanded/

for cherry picking

Peter


On Sun, May 17, 2009 at 3:08 PM, Matt Turner <mattst88 at gmail.com> wrote:
> Thanks for the responses.
>
> Peter Petrakis lent a hand and explained how to to reflash the SRM,
> the process being
> 1) Created a debug cable
> 2) Loading SROM
> 3) Loading the debug monitor (in EBSDK) over the debug line
> 4) Debug monitor (available on COM1) allows you to load SRM over the serial line
> 5) Once in SRM, you can reflash the SRM onto the board from a floppy disk
>
> Thus far, I have created my cable and am able to get into SROM. Using
> the 'xm' and 'xb' commands (documented in the SROM mini-debugger guide
> [0]) I should be able to start the debug monitor.
>
> I do
> SROM> xm
> A> 300000  ! default address
> D> [size of the file in bytes in hex]
> and then transfer the file over the debug cable.
>
> In EBSDK there is ebsdk/ebboot/dp264/dp264dbm.{cmp,hex,img,rom,sr}. I
> have tried loading the .cmp, .rom, and .img files. The img file
> finishes transferring and the SROM> prompt returns, but with the rom
> and cmp files the SROM> prompt does not appear again, as if waiting
> for more input. (I try to use the .cmp file because it is shown being
> used twice in the SROM guide)
>
> With the rom and img files, I can send a break and get the SROM>
> prompt again. From here, regardless of which image I have loaded,
> running the 'xb' command it prints '.06' and hangs. I think further
> output is supposed to go over COM1, so I watch it on another serial
> cable, but nothing ever happens. I even tried the test programs like
> 'hello', 'regtest', etc; None does anything other than printing '.06'
> to SROM.
>
> I'm waiting to receive an MMJ->serial adapter. Once I get it, I can
> try on my LX and see what should happen. The UP2000+ could be bad,
> after all.
>
> Again, I'm pretty stumped. What should I try next?
>
> Thanks,
> Matt
>
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