Re: [ECOS] Why the application run on redboot uncorrectly?

Re: [ECOS] Why the application run on redboot uncorrectly?

[xie boyan]

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> > > I download the hello elf file by using command:
> > >     load -v -h MyHost -m tftp /tftpboot/hello
> > > and it failed by displaying "Abort! Attempt to load ELF data to 
address:
> > > 0x00020000 which
> > > is not  in RAM."
> >
> > A little logical thinking is required. "is not in RAM" probably means
> > its trying to load it into ROM. So you have probably built a ROM
> > app. Try building a RAM application.
> >
> >      Andrew
>
>But for the snds platform if nothing is changed 0x20000 is RAM. It should
>be right.
>
>Maybe RedBoot is a RAM version?
>
>Roland

Hi, Roland

My RedBoot is exactly the ROM version and my application is definitely the 
RAM version. I have read some earlier archives in mailing list, the same 
issue occured but it seems not have a final answer.
This especially seems to be a problem of snds eval board, mybe you can find 
out some bugs in the redboot source in the package?

I've tried to enforce the base=0x300000 in the entry of function 
load_elf_image() whithin the source file load.c in the redboot source 
directory, and the command
      RedBoot> load -v -h MyHost_IP -m tftp /tftpboot/hello
works out. It looks all right because of the screen messages are OK, 
especially the memory size which contain the downloaded elf codes exactly 
equal to the original elf file size in host. I think this means that the 
source of redboot has at least a load base address bug.

The first problem, i.e. the elf load, has been resolved by temporarily 
enforcing base=0x300000, but another problem comes up. When I do "GO" 
command, the application hello still does not say "Hello !".

--Xie Boyan

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Re: [ECOS] Why the application run on redboot uncorrectly?

[Chris Garry]

----- Original Message ----- 
From: "xie boyan" <xieboyan@hotmail.com>
To: <ecos-discuss@sources.redhat.com>
Sent: Thursday, November 27, 2003 1:53 AM
Subject: Re: [ECOS] Why the application run on redboot uncorrectly?


> 
> > > > I download the hello elf file by using command:
> > > >     load -v -h MyHost -m tftp /tftpboot/hello
> > > > and it failed by displaying "Abort! Attempt to load ELF data to 
> address:
> > > > 0x00020000 which
> > > > is not  in RAM."
> > >
> > > A little logical thinking is required. "is not in RAM" probably means
> > > its trying to load it into ROM. So you have probably built a ROM
> > > app. Try building a RAM application.
> > >
> > >      Andrew
> >
> >But for the snds platform if nothing is changed 0x20000 is RAM. It should
> >be right.
> >
> >Maybe RedBoot is a RAM version?
> >
> >Roland
> 
> Hi, Roland
> 
> My RedBoot is exactly the ROM version and my application is definitely the 
> RAM version. I have read some earlier archives in mailing list, the same 
> issue occured but it seems not have a final answer.
> This especially seems to be a problem of snds eval board, mybe you can find 
> out some bugs in the redboot source in the package?
> 
> I've tried to enforce the base=0x300000 in the entry of function 
> load_elf_image() whithin the source file load.c in the redboot source 
> directory, and the command
>       RedBoot> load -v -h MyHost_IP -m tftp /tftpboot/hello
> works out. It looks all right because of the screen messages are OK, 
> especially the memory size which contain the downloaded elf codes exactly 
> equal to the original elf file size in host. I think this means that the 
> source of redboot has at least a load base address bug.
> 
> The first problem, i.e. the elf load, has been resolved by temporarily 
> enforcing base=0x300000, but another problem comes up. When I do "GO" 
> command, the application hello still does not say "Hello !".
> 

The "Abort! Attempt to load ELF data to address: 0x00020000 which
is not in RAM." message will also be seen when you try to load an
image into RAM that RedBoot is already using.

What RAM does RedBoot report as 'available' when it first runs?

Chris




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Re: [ECOS] Why the application run on redboot uncorrectly?

[xie boyan]

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>From: Andrew Lunn <andrew@lunn.ch>
>To: xie boyan <xieboyan@hotmail.com>
>CC: ecos-discuss@sources.redhat.com
>Subject: Re: [ECOS] Why the application run on redboot uncorrectly?
>Date: Tue, 25 Nov 2003 09:34:56 +0100
>
> >           RedBoot> load -v -r -h MyHost -m TFTP -b 0x800040 hello.elf
> > the tftp transportation looks like correct because the informations
> > displayed on screen is normal. Of course my executable application 
Hello is
> > under the directory /tftpboot on my host PC.
>
>Read:
>
>http://ecos.sourceware.org/docs-latest/ref/download-command.html
>
>-r does not make sense for an elf file. You also don't need -b 0x80040
>with elf files.
>
>      Andrew


Hi, Andrew

I try to do as your instructions, but it also failed.

My template is samsung snds, my toolchain is arm-elf-gcc, my packages 
included are :
    ARM comman HAL, Comman HAL, CRC Support, Comman ethernet support, 
    ISO C and Posix infrastructure, ISO C library string functions, 
Infrastructure,
    RedBoot, Samsung SNDS, Samsung KS32C50000 Ethernet driver, Comman HAL
and the tftp server on my host is in.tftpd which I started by using command 
"in.tftpd -l".

I download the hello elf file by using command:
     load -v -h MyHost -m tftp /tftpboot/hello
and it failed by displaying "Abort! Attempt to load ELF data to address: 
0x00020000 which 
is not  in RAM."

I need your further help.

Bestg Regards!

--boyan xie

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Re: [ECOS] Why the application run on redboot uncorrectly?

[Andrew Lunn]

> I download the hello elf file by using command:
>     load -v -h MyHost -m tftp /tftpboot/hello
> and it failed by displaying "Abort! Attempt to load ELF data to address: 
> 0x00020000 which 
> is not  in RAM."

A little logical thinking is required. "is not in RAM" probably means
its trying to load it into ROM. So you have probably built a ROM
app. Try building a RAM application.

     Andrew

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Re: [ECOS] Why the application run on redboot uncorrectly?

[Roland Caßebohm]

On Mittwoch, 26. November 2003 09:24, Andrew Lunn wrote:
> > I download the hello elf file by using command:
> >     load -v -h MyHost -m tftp /tftpboot/hello
> > and it failed by displaying "Abort! Attempt to load ELF data to address:
> > 0x00020000 which
> > is not  in RAM."
>
> A little logical thinking is required. "is not in RAM" probably means
> its trying to load it into ROM. So you have probably built a ROM
> app. Try building a RAM application.
>
>      Andrew

But for the snds platform if nothing is changed 0x20000 is RAM. It should
be right.

Maybe RedBoot is a RAM version?

Roland

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[ECOS] Why the application run on redboot uncorrectly?

[xie boyan]

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Hi, 

I'm a newbie on eCos.
I use the samsung snds board as target, and I make the redboot down onto 
the target flash. All is OK when the redboot bootup the target board.

I download my Hello World application example program into RAM using 
command bellow:
           RedBoot> load -v -r -h MyHost -m TFTP -b 0x800040 hello.elf
the tftp transportation looks like correct because the informations 
displayed on screen is normal. Of course my executable application Hello is 
under the directory /tftpboot on my host PC.

But when I use command "GO 0x800040" to execute this program, troubles 
occured: my target board corrupted and halt, and the following message 
displayed:

     RedBoot> go 0x800040
     
$T050f:020a0400;0d:e8060200;#49$T050f:020a0400;0d:e8060200;#49$T050f:020a0400;0)


Could someone tell me why this happened, and how can I make my application 
run on the eCos?

Thanks in advance


--Boyan Xie

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Re: [ECOS] Why the application run on redboot uncorrectly?

[Andrew Lunn]

>           RedBoot> load -v -r -h MyHost -m TFTP -b 0x800040 hello.elf
> the tftp transportation looks like correct because the informations 
> displayed on screen is normal. Of course my executable application Hello is 
> under the directory /tftpboot on my host PC.

Read:

http://ecos.sourceware.org/docs-latest/ref/download-command.html

-r does not make sense for an elf file. You also don't need -b 0x80040
with elf files.

     Andrew

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Re: [ECOS] Why the application run on redboot uncorrectly?

[Nick Garnett]

Andrew Lunn <andrew@lunn.ch> writes:

> >           RedBoot> load -v -r -h MyHost -m TFTP -b 0x800040 hello.elf
> > the tftp transportation looks like correct because the informations 
> > displayed on screen is normal. Of course my executable application Hello is 
> > under the directory /tftpboot on my host PC.
> 
> Read:
> 
> http://ecos.sourceware.org/docs-latest/ref/download-command.html
> 
> -r does not make sense for an elf file. You also don't need -b 0x80040
> with elf files.

Also, since you are just starting, use GDB to download and run
programs initially. It's much easier and you will get better feedback
when things go wrong.

-- 
Nick Garnett                    eCos Kernel Architect
http://www.ecoscentric.com      The eCos and RedBoot experts


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