Re: [ECOS] "Fis init" failed on EB40A

["Jaws" <jaws75 at tiscali dot it>]

Thanks Andrew,
    I did also this test with  JTAG programmer but the ROM or ROMARAM
version doesn't work.
The board remains blocked. I don't understand why the RAM version work
properly and the ROm version doesn't.
Could be a problem related to the startup? How can I investigate this
problem?

Thanks
Jaws

----- Original Message -----
From: "Andrew Lunn" <andrew@lunn.ch>
To: "Domenico La Fauci" <mlafauci@tiscali.it>
Cc: "eCos Discuss" <ecos-discuss@ecos.sourceware.org>
Sent: Thursday, July 28, 2005 5:35 PM
Subject: Re: [ECOS] "Fis init" failed on EB40A


> On Thu, Jul 28, 2005 at 05:22:32PM +0200, Domenico La Fauci wrote:
> > Hi Paul,
> >     sorry but I don't understand what you said. Could you please explain
me?
> > Now I have a new version of Redboot for EB40A that works with all of fis
> > commands.
> > The problem that I have now is that the RAM version of redboot works
> > properly but the ROM or ROMRAM version doesn't start. when the board is
> > powered up led D1-D5 are on but no communication the serial line.
> >
> > When I tried to load the ROM version in RAM and launch it, this is the
> > result:
> >
> > RedBoot> fis lis
> > Name              FLASH addr  Mem addr    Length      Entry point
> > RedBoot           0x01000000  0x01000000  0x00020000  0x00000000
> > RedBoot[ROM]      0x01100000  0x01100000  0x00010000  0x02024C00
> > FIS directory     0x011F0000  0x011F0000  0x0000F000  0x00000000
> > RedBoot config    0x011FF000  0x011FF000  0x00001000  0x00000000
> >
> > RedBoot>
> > RedBoot> fis load RedBoot[ROM] -b %{FREEMEMLO}
> > RedBoot> go
>
> This will not work. eCos is position dependant. The ROM version is
> linked so that it runs at the address location the ROM is at.
>
> Another thing a ROM version might do is setup the RAM controller. With
> most processors, setting up the RAM controller when running in RAM
> will cause a crash.
>
> So if you want to run the ROM version you need to put it into ROM. I
> suggest you have a JTAG flash programmer handy. If your ROM image does
> not boot you have a dead board which you can only recover using the
> programmer.
>
>         Andrew

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