On Wed, 4 Apr 2001, Marty Connor wrote:
> On 4/4/01 3:08 AM Alexei A.Romanenko A.A...@in... wrote:
> >I compile ROM image using etherboot-4.6.12 for my network card
> >and place it as binary data into AM27c512-120JI chip (eprom, 512
> >Kbit, 64Kx8, 120ns)
>
> I would try a 27C256-100, which is a smaller, faster EPROM. It could be
> that your card is not capable of seeing that size/speed of EPROM.
Intel declare, that ROM for the card must be 150ns, or faster.
So, i don't think the reason in speed of EPROM
>
> >when i turn pc on it says nothing refered to booting via LAN
> >(first boot from LAN is set in BIOS), although after installing
> >bootstrap for LILO, computer boots well.
>
> Get the DOS debug program, and search for the contents of the ROM in
> memory.
>
> (by the way, could someone please send an actual DOS debugging session
> showing how to find EPROM contents in memory? I am writing documentation
> for Etherboot, and would like to give an example for novices. I guess I
> could define LPT to COM1 with some DOS mode command and capture the
> output of the serial port in a buffer, but if anyone knows a better way,
> I'd sure appreciate it.)
Where can I find that DOS debug program?
how it is possible to find contents of the ROM in memory? It will
be rewriten by something else (by command.com for example)
>
> Anyway, I generally find problems with having ROMs recognized these days
> seems often to have to do with speed. If the card doesn't insert enough
> wait states, then the CPU may try to read the ROM too fast, and think it
> is not there.
>
> Maybe someone who knows more intimate details can be of more assistance.
>
> Marty
>
> ---
> Try: http://rom-o-matic.net/ to make Etherboot images instantly.
>
> Name: Marty Connor
> US Mail: Entity Cyber, Inc.; P.O. Box 391827; Cambridge, MA 02139; USA
> Voice: (617) 491-6935, Fax: (617) 491-7046
> Email: md...@th...
> Web: http://www.thinguin.org/
>
>
>
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>
Alex
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A.A...@in...
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