[ECOS] Serial support for arm board

[ECOS] Serial support for arm board

[Dave B. Sharp]

 I have an Arcom Viper PXA-255 Arm board with Redboot
and would like to create a simple "Hello World:
application that I can "exec" (not go); I gather there
is no GDB support. I am guessing that this probably
going to require some sort of rudamentary serial port
driver support. Can anyone help w/ source code or
pointers to info.
  Cheers
   Dave Sharp


	

	
		
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Re: [ECOS] Serial support for arm board

[Gary Thomas]

On Thu, 2005-10-27 at 14:20 -0400, Dave B. Sharp wrote:
>  I have an Arcom Viper PXA-255 Arm board with Redboot
> and would like to create a simple "Hello World:
> application that I can "exec" (not go); I gather there
> is no GDB support. I am guessing that this probably
> going to require some sort of rudamentary serial port
> driver support. Can anyone help w/ source code or
> pointers to info.

What do you mean 'exec' instead of 'go'?  The 'exec' command
is really only designed for running Linux kernels.  The 'go'
command can be used for most anything else.

If you explain why you're thinking on this path, maybe we
can provide more data to help you along.

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------


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Re: [ECOS] Serial support for arm board

[Dave B. Sharp]

Ultimatately I am creating a wedge program to go
between Linux and Redboot, so I want the program to
operate in the same mode as Linux (i.e. with mmu,
etc.).
  Cheers
   Dave

--- Gary Thomas <gary@mlbassoc.com> wrote:

> On Thu, 2005-10-27 at 14:20 -0400, Dave B. Sharp
> wrote:
> >  I have an Arcom Viper PXA-255 Arm board with
> Redboot
> > and would like to create a simple "Hello World:
> > application that I can "exec" (not go); I gather
> there
> > is no GDB support. I am guessing that this
> probably
> > going to require some sort of rudamentary serial
> port
> > driver support. Can anyone help w/ source code or
> > pointers to info.
> 
> What do you mean 'exec' instead of 'go'?  The 'exec'
> command
> is really only designed for running Linux kernels. 
> The 'go'
> command can be used for most anything else.
> 
> If you explain why you're thinking on this path,
> maybe we
> can provide more data to help you along.
> 
> -- 
>
------------------------------------------------------------
> Gary Thomas                 |  Consulting for the
> MLB Associates              |    Embedded world
>
------------------------------------------------------------
> 
> 



	

	
		
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Re: [ECOS] Serial support for arm board

[Gary Thomas]

On Thu, 2005-10-27 at 14:40 -0400, Dave B. Sharp wrote:
> Ultimatately I am creating a wedge program to go
> between Linux and Redboot, so I want the program to
> operate in the same mode as Linux (i.e. with mmu,
> etc.).

You still haven't explained what this program is to do.
Why do you think you need a serial driver, etc?
What do you mean a "wedge between RedBoot and Linux?"

>   Cheers
>    Dave
> 
> --- Gary Thomas <gary@mlbassoc.com> wrote:
> 
> > On Thu, 2005-10-27 at 14:20 -0400, Dave B. Sharp
> > wrote:
> > >  I have an Arcom Viper PXA-255 Arm board with
> > Redboot
> > > and would like to create a simple "Hello World:
> > > application that I can "exec" (not go); I gather
> > there
> > > is no GDB support. I am guessing that this
> > probably
> > > going to require some sort of rudamentary serial
> > port
> > > driver support. Can anyone help w/ source code or
> > > pointers to info.
> > 
> > What do you mean 'exec' instead of 'go'?  The 'exec'
> > command
> > is really only designed for running Linux kernels. 
> > The 'go'
> > command can be used for most anything else.
> > 
> > If you explain why you're thinking on this path,
> > maybe we
> > can provide more data to help you along.

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------


-- 
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
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Re: [ECOS] Serial support for arm board

[Dave B. Sharp]

The serial support is simply for output. Since there
is  not gdb debugging support (I am assuming) I am
resorting to printf() development and debugging. If
there is a better way then I am all ears. Other than
that, I just want to be able to see something work
before proceeding.
  The "wedge" is intended to be a program that is
started by Redboot, does its thing, then in turn will
start up the Linux kernel, such as with a layer in a
protocol stack.
  Cheers
  Dave

--- Gary Thomas <gary@mlbassoc.com> wrote:

> On Thu, 2005-10-27 at 14:40 -0400, Dave B. Sharp
> wrote:
> > Ultimatately I am creating a wedge program to go
> > between Linux and Redboot, so I want the program
> to
> > operate in the same mode as Linux (i.e. with mmu,
> > etc.).
> 
> You still haven't explained what this program is to
> do.
> Why do you think you need a serial driver, etc?
> What do you mean a "wedge between RedBoot and
> Linux?"
> 
> >   Cheers
> >    Dave
> > 
> > --- Gary Thomas <gary@mlbassoc.com> wrote:
> > 
> > > On Thu, 2005-10-27 at 14:20 -0400, Dave B. Sharp
> > > wrote:
> > > >  I have an Arcom Viper PXA-255 Arm board with
> > > Redboot
> > > > and would like to create a simple "Hello
> World:
> > > > application that I can "exec" (not go); I
> gather
> > > there
> > > > is no GDB support. I am guessing that this
> > > probably
> > > > going to require some sort of rudamentary
> serial
> > > port
> > > > driver support. Can anyone help w/ source code
> or
> > > > pointers to info.
> > > 
> > > What do you mean 'exec' instead of 'go'?  The
> 'exec'
> > > command
> > > is really only designed for running Linux
> kernels. 
> > > The 'go'
> > > command can be used for most anything else.
> > > 
> > > If you explain why you're thinking on this path,
> > > maybe we
> > > can provide more data to help you along.
> 
> -- 
>
------------------------------------------------------------
> Gary Thomas                 |  Consulting for the
> MLB Associates              |    Embedded world
>
------------------------------------------------------------
> 
> 



	

	
		
__________________________________________________________ 
Find your next car at http://autos.yahoo.ca

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Re: [ECOS] Serial support for arm board

[Andrew Lunn]

On Thu, Oct 27, 2005 at 02:57:13PM -0400, Dave B. Sharp wrote:
> The serial support is simply for output. Since there
> is  not gdb debugging support (I am assuming)

Why are you assuming this?

> I am resorting to printf() development and debugging. If there is a
> better way then I am all ears. Other than that, I just want to be
> able to see something work before proceeding.  The "wedge" is
> intended to be a program that is started by Redboot, does its thing,
> then in turn will start up the Linux kernel, such as with a layer in
> a protocol stack.

So why not incorporate this functionallity into RedBoot?

        Andrew

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Re: [ECOS] Serial support for arm board

[Dave B. Sharp]

I have been looking for gdb with Redboot to no avail,
however I beleive I am about to find out otherwise.
Can  you point me to some info and, can I use gdb in
"exec" mode, since at that point I beleive there will
no longer be any Redboot support (however I could
wrong on  this too).
  Cheers
   Dave

--- Andrew Lunn <andrew@lunn.ch> wrote:

> On Thu, Oct 27, 2005 at 02:57:13PM -0400, Dave B.
> Sharp wrote:
> > The serial support is simply for output. Since
> there
> > is  not gdb debugging support (I am assuming)
> 
> Why are you assuming this?
> 
> > I am resorting to printf() development and
> debugging. If there is a
> > better way then I am all ears. Other than that, I
> just want to be
> > able to see something work before proceeding.  The
> "wedge" is
> > intended to be a program that is started by
> Redboot, does its thing,
> > then in turn will start up the Linux kernel, such
> as with a layer in
> > a protocol stack.
> 
> So why not incorporate this functionallity into
> RedBoot?
> 
>         Andrew
> 



	

	
		
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Re: [ECOS] Serial support for arm board

[Andrew Lunn]

On Thu, Oct 27, 2005 at 03:33:09PM -0400, Dave B. Sharp wrote:
> I have been looking for gdb with Redboot to no avail,
> however I beleive I am about to find out otherwise.
> Can  you point me to some info and, can I use gdb in
> "exec" mode, since at that point I beleive there will
> no longer be any Redboot support 

You don't need to use exec mode. Just connect with gdb then use gdb to
load the application into ram, set breakpoints and use gdbs go command
to set it running.


http://ecos.sourceware.org/docs-latest/user-guide/using-commandline-testcase.html

        Andrew

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Re: [ECOS] Serial support for arm board

[Dave B. Sharp]

I've compiled and done everything in link you sent: 
arm-gdb main
target remore ....
load ...
continue
 continuing

when I do the continue it seem to hang waiting for the
target to connect. When I <cntl-c> out it reports
interupted while waiting for the program
Give up (and stop debugging it?) (y or n)
 Am I missing something? Do I need to write a stub for
my program or is the one in Redboot sufficient?
  Cheers
   Dave

--- Andrew Lunn <andrew@lunn.ch> wrote:

> On Thu, Oct 27, 2005 at 03:33:09PM -0400, Dave B.
> Sharp wrote:
> > I have been looking for gdb with Redboot to no
> avail,
> > however I beleive I am about to find out
> otherwise.
> > Can  you point me to some info and, can I use gdb
> in
> > "exec" mode, since at that point I beleive there
> will
> > no longer be any Redboot support 
> 
> You don't need to use exec mode. Just connect with
> gdb then use gdb to
> load the application into ram, set breakpoints and
> use gdbs go command
> to set it running.
> 
> 
>
http://ecos.sourceware.org/docs-latest/user-guide/using-commandline-testcase.html
> 
>         Andrew
> 



	

	
		
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Re: [ECOS] Serial support for arm board

[Dirk Husemann]

[-- Attachment #1: Type: text/plain, Size: 2106 bytes --]

Dave B. Sharp wrote:

>I've compiled and done everything in link you sent: 
>arm-gdb main
>target remore ....
>load ...
>continue
> continuing
>
>when I do the continue it seem to hang waiting for the
>target to connect. When I <cntl-c> out it reports
>interupted while waiting for the program
>Give up (and stop debugging it?) (y or n)
> Am I missing something? Do I need to write a stub for
>my program or is the one in Redboot sufficient?
>  
>
hmm...not sure whether you did that, but did you set a breakpoint? at 
least from the summary above it looks like you didn't...

    dirk

>  Cheers
>   Dave
>
>--- Andrew Lunn <andrew@lunn.ch> wrote:
>
>  
>
>>On Thu, Oct 27, 2005 at 03:33:09PM -0400, Dave B.
>>Sharp wrote:
>>    
>>
>>>I have been looking for gdb with Redboot to no
>>>      
>>>
>>avail,
>>    
>>
>>>however I beleive I am about to find out
>>>      
>>>
>>otherwise.
>>    
>>
>>>Can  you point me to some info and, can I use gdb
>>>      
>>>
>>in
>>    
>>
>>>"exec" mode, since at that point I beleive there
>>>      
>>>
>>will
>>    
>>
>>>no longer be any Redboot support 
>>>      
>>>
>>You don't need to use exec mode. Just connect with
>>gdb then use gdb to
>>load the application into ram, set breakpoints and
>>use gdbs go command
>>to set it running.
>>
>>
>>
>>    
>>
>http://ecos.sourceware.org/docs-latest/user-guide/using-commandline-testcase.html
>  
>
>>        Andrew
>>
>>    
>>
>
>
>
>	
>
>	
>		
>__________________________________________________________ 
>Find your next car at http://autos.yahoo.ca
>
>  
>


-- 
Dr Dirk Husemann, Pervasive Computing, IBM Research, Zurich Research Lab
	hud@zurich.ibm.com --- http://www.zurich.ibm.com/~hud/
       PGP key: http://www.zurich.ibm.com/~hud/contact/PGP
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Re: [ECOS] Serial support for arm board

[Dave B. Sharp]

No, but even if I had would that have not been cleared
with a reboot?
   Dave
 
--- Dirk Husemann <hud@zurich.ibm.com> wrote:

> Dave B. Sharp wrote:
> 
> >I've compiled and done everything in link you sent:
> 
> >arm-gdb main
> >target remore ....
> >load ...
> >continue
> > continuing
> >
> >when I do the continue it seem to hang waiting for
> the
> >target to connect. When I <cntl-c> out it reports
> >interupted while waiting for the program
> >Give up (and stop debugging it?) (y or n)
> > Am I missing something? Do I need to write a stub
> for
> >my program or is the one in Redboot sufficient?
> >  
> >
> hmm...not sure whether you did that, but did you set
> a breakpoint? at 
> least from the summary above it looks like you
> didn't...
> 
>     dirk
> 
> >  Cheers
> >   Dave
> >
> >--- Andrew Lunn <andrew@lunn.ch> wrote:
> >
> >  
> >
> >>On Thu, Oct 27, 2005 at 03:33:09PM -0400, Dave B.
> >>Sharp wrote:
> >>    
> >>
> >>>I have been looking for gdb with Redboot to no
> >>>      
> >>>
> >>avail,
> >>    
> >>
> >>>however I beleive I am about to find out
> >>>      
> >>>
> >>otherwise.
> >>    
> >>
> >>>Can  you point me to some info and, can I use gdb
> >>>      
> >>>
> >>in
> >>    
> >>
> >>>"exec" mode, since at that point I beleive there
> >>>      
> >>>
> >>will
> >>    
> >>
> >>>no longer be any Redboot support 
> >>>      
> >>>
> >>You don't need to use exec mode. Just connect with
> >>gdb then use gdb to
> >>load the application into ram, set breakpoints and
> >>use gdbs go command
> >>to set it running.
> >>
> >>
> >>
> >>    
> >>
>
>http://ecos.sourceware.org/docs-latest/user-guide/using-commandline-testcase.html
> >  
> >
> >>        Andrew
> >>
> >>    
> >>
> >
> >
> >
> >	
> >
> >	
> >		
>
>__________________________________________________________
> 
> >Find your next car at http://autos.yahoo.ca
> >
> >  
> >
> 
> 
> -- 
> Dr Dirk Husemann, Pervasive Computing, IBM Research,
> Zurich Research Lab
> 	hud@zurich.ibm.com ---
> http://www.zurich.ibm.com/~hud/
>        PGP key:
> http://www.zurich.ibm.com/~hud/contact/PGP
>   PGP Fingerprint: 983C 48E7 0A78 A313 401C  C4AD
> 3C0A 278E 6431 A149
> 	     Email only authentic if signed with PGP key.
> 
> Appended to this email is an electronic signature
> attachment. You can
> ignore it if your email program does not know how to
> verify such a
> signature. If you'd like to learn more about this
> topic, www.gnupg.org
> is a good starting point.
> 
> 



	

	
		
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Re: [ECOS] Serial support for arm board

[Dirk Husemann]

[-- Attachment #1: Type: text/plain, Size: 3870 bytes --]

Dave B. Sharp wrote:

>No, but even if I had would that have not been cleared
>with a reboot?
>  
>
no, GDB will set the breakpoint on loading. so, if you staid connected, 
did a reset of the board and then reloaded the image, you'd end up with 
the breakpoint set again.

what i usually do is set breakpoints at cyg_user_start and 
cyg_assert_fail before doing the continue.

    cheers,
    dirk

>   Dave
> 
>--- Dirk Husemann <hud@zurich.ibm.com> wrote:
>
>  
>
>>Dave B. Sharp wrote:
>>
>>    
>>
>>>I've compiled and done everything in link you sent:
>>>      
>>>
>>>arm-gdb main
>>>target remore ....
>>>load ...
>>>continue
>>>continuing
>>>
>>>when I do the continue it seem to hang waiting for
>>>      
>>>
>>the
>>    
>>
>>>target to connect. When I <cntl-c> out it reports
>>>interupted while waiting for the program
>>>Give up (and stop debugging it?) (y or n)
>>>Am I missing something? Do I need to write a stub
>>>      
>>>
>>for
>>    
>>
>>>my program or is the one in Redboot sufficient?
>>> 
>>>
>>>      
>>>
>>hmm...not sure whether you did that, but did you set
>>a breakpoint? at 
>>least from the summary above it looks like you
>>didn't...
>>
>>    dirk
>>
>>    
>>
>>> Cheers
>>>  Dave
>>>
>>>--- Andrew Lunn <andrew@lunn.ch> wrote:
>>>
>>> 
>>>
>>>      
>>>
>>>>On Thu, Oct 27, 2005 at 03:33:09PM -0400, Dave B.
>>>>Sharp wrote:
>>>>   
>>>>
>>>>        
>>>>
>>>>>I have been looking for gdb with Redboot to no
>>>>>     
>>>>>
>>>>>          
>>>>>
>>>>avail,
>>>>   
>>>>
>>>>        
>>>>
>>>>>however I beleive I am about to find out
>>>>>     
>>>>>
>>>>>          
>>>>>
>>>>otherwise.
>>>>   
>>>>
>>>>        
>>>>
>>>>>Can  you point me to some info and, can I use gdb
>>>>>     
>>>>>
>>>>>          
>>>>>
>>>>in
>>>>   
>>>>
>>>>        
>>>>
>>>>>"exec" mode, since at that point I beleive there
>>>>>     
>>>>>
>>>>>          
>>>>>
>>>>will
>>>>   
>>>>
>>>>        
>>>>
>>>>>no longer be any Redboot support 
>>>>>     
>>>>>
>>>>>          
>>>>>
>>>>You don't need to use exec mode. Just connect with
>>>>gdb then use gdb to
>>>>load the application into ram, set breakpoints and
>>>>use gdbs go command
>>>>to set it running.
>>>>
>>>>
>>>>
>>>>   
>>>>
>>>>        
>>>>
>>http://ecos.sourceware.org/docs-latest/user-guide/using-commandline-testcase.html
>>    
>>
>>> 
>>>
>>>      
>>>
>>>>       Andrew
>>>>
>>>>   
>>>>
>>>>        
>>>>
>>>
>>>	
>>>
>>>	
>>>		
>>>      
>>>
>>__________________________________________________________
>>
>>    
>>
>>>Find your next car at http://autos.yahoo.ca
>>>
>>> 
>>>
>>>      
>>>
>>-- 
>>Dr Dirk Husemann, Pervasive Computing, IBM Research,
>>Zurich Research Lab
>>	hud@zurich.ibm.com ---
>>http://www.zurich.ibm.com/~hud/
>>       PGP key:
>>http://www.zurich.ibm.com/~hud/contact/PGP
>>  PGP Fingerprint: 983C 48E7 0A78 A313 401C  C4AD
>>3C0A 278E 6431 A149
>>	     Email only authentic if signed with PGP key.
>>
>>Appended to this email is an electronic signature
>>attachment. You can
>>ignore it if your email program does not know how to
>>verify such a
>>signature. If you'd like to learn more about this
>>topic, www.gnupg.org
>>is a good starting point.
>>
>>
>>    
>>
>
>
>
>	
>
>	
>		
>__________________________________________________________ 
>Find your next car at http://autos.yahoo.ca
>
>
>  
>


-- 
Dr Dirk Husemann, Pervasive Computing, IBM Research, Zurich Research Lab
	hud@zurich.ibm.com --- http://www.zurich.ibm.com/~hud/
       PGP key: http://www.zurich.ibm.com/~hud/contact/PGP
  PGP Fingerprint: 983C 48E7 0A78 A313 401C  C4AD 3C0A 278E 6431 A149
	     Email only authentic if signed with PGP key.

Appended to this email is an electronic signature attachment. You can
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Re: [ECOS] Serial support for arm board

[Gary Thomas]

On Thu, 2005-10-27 at 14:57 -0400, Dave B. Sharp wrote:
> The serial support is simply for output. Since there
> is  not gdb debugging support (I am assuming) I am
> resorting to printf() development and debugging. If
> there is a better way then I am all ears. Other than
> that, I just want to be able to see something work
> before proceeding.
>   The "wedge" is intended to be a program that is
> started by Redboot, does its thing, then in turn will
> start up the Linux kernel, such as with a layer in a
> protocol stack.

Why not write your wedge program as an eCos application which
"does its thing" and then hands control over to Linux (which
takes over the whole machine anyway)?  Then you have full
facilities to use (serial I/O, GDB debugging, etc).

>   Cheers
>   Dave
> 
> --- Gary Thomas <gary@mlbassoc.com> wrote:
> 
> > On Thu, 2005-10-27 at 14:40 -0400, Dave B. Sharp
> > wrote:
> > > Ultimatately I am creating a wedge program to go
> > > between Linux and Redboot, so I want the program
> > to
> > > operate in the same mode as Linux (i.e. with mmu,
> > > etc.).
> > 
> > You still haven't explained what this program is to
> > do.
> > Why do you think you need a serial driver, etc?
> > What do you mean a "wedge between RedBoot and
> > Linux?"
> > 
> > >   Cheers
> > >    Dave
> > > 
> > > --- Gary Thomas <gary@mlbassoc.com> wrote:
> > > 
> > > > On Thu, 2005-10-27 at 14:20 -0400, Dave B. Sharp
> > > > wrote:
> > > > >  I have an Arcom Viper PXA-255 Arm board with
> > > > Redboot
> > > > > and would like to create a simple "Hello
> > World:
> > > > > application that I can "exec" (not go); I
> > gather
> > > > there
> > > > > is no GDB support. I am guessing that this
> > > > probably
> > > > > going to require some sort of rudamentary
> > serial
> > > > port
> > > > > driver support. Can anyone help w/ source code
> > or
> > > > > pointers to info.
> > > > 
> > > > What do you mean 'exec' instead of 'go'?  The
> > 'exec'
> > > > command
> > > > is really only designed for running Linux
> > kernels. 
> > > > The 'go'
> > > > command can be used for most anything else.
> > > > 
> > > > If you explain why you're thinking on this path,
> > > > maybe we
> > > > can provide more data to help you along.
> > 
> > -- 
> >
> ------------------------------------------------------------
> > Gary Thomas                 |  Consulting for the
> > MLB Associates              |    Embedded world
> >
> ------------------------------------------------------------
> > 
> > 
> 
> 
> 
> 	
> 
> 	
> 		
> __________________________________________________________ 
> Find your next car at http://autos.yahoo.ca
> 
-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------


-- 
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss

Re: [ECOS] Serial support for arm board

[Dave B. Sharp]

That would be great, however, I am assuming Redboot is
a proper subset of Ecos and that I would have to
install Ecos on the board, no? If I screw up the boot
loader install then I am going to have even bigger
problems.
 Or can I just link in the appropriate libs and run
from Redboot?
   Dave

--- Gary Thomas <gary@mlbassoc.com> wrote:

> On Thu, 2005-10-27 at 14:57 -0400, Dave B. Sharp
> wrote:
> > The serial support is simply for output. Since
> there
> > is  not gdb debugging support (I am assuming) I am
> > resorting to printf() development and debugging.
> If
> > there is a better way then I am all ears. Other
> than
> > that, I just want to be able to see something work
> > before proceeding.
> >   The "wedge" is intended to be a program that is
> > started by Redboot, does its thing, then in turn
> will
> > start up the Linux kernel, such as with a layer in
> a
> > protocol stack.
> 
> Why not write your wedge program as an eCos
> application which
> "does its thing" and then hands control over to
> Linux (which
> takes over the whole machine anyway)?  Then you have
> full
> facilities to use (serial I/O, GDB debugging, etc).
> 
> >   Cheers
> >   Dave
> > 
> > --- Gary Thomas <gary@mlbassoc.com> wrote:
> > 
> > > On Thu, 2005-10-27 at 14:40 -0400, Dave B. Sharp
> > > wrote:
> > > > Ultimatately I am creating a wedge program to
> go
> > > > between Linux and Redboot, so I want the
> program
> > > to
> > > > operate in the same mode as Linux (i.e. with
> mmu,
> > > > etc.).
> > > 
> > > You still haven't explained what this program is
> to
> > > do.
> > > Why do you think you need a serial driver, etc?
> > > What do you mean a "wedge between RedBoot and
> > > Linux?"
> > > 
> > > >   Cheers
> > > >    Dave
> > > > 
> > > > --- Gary Thomas <gary@mlbassoc.com> wrote:
> > > > 
> > > > > On Thu, 2005-10-27 at 14:20 -0400, Dave B.
> Sharp
> > > > > wrote:
> > > > > >  I have an Arcom Viper PXA-255 Arm board
> with
> > > > > Redboot
> > > > > > and would like to create a simple "Hello
> > > World:
> > > > > > application that I can "exec" (not go); I
> > > gather
> > > > > there
> > > > > > is no GDB support. I am guessing that this
> > > > > probably
> > > > > > going to require some sort of rudamentary
> > > serial
> > > > > port
> > > > > > driver support. Can anyone help w/ source
> code
> > > or
> > > > > > pointers to info.
> > > > > 
> > > > > What do you mean 'exec' instead of 'go'? 
> The
> > > 'exec'
> > > > > command
> > > > > is really only designed for running Linux
> > > kernels. 
> > > > > The 'go'
> > > > > command can be used for most anything else.
> > > > > 
> > > > > If you explain why you're thinking on this
> path,
> > > > > maybe we
> > > > > can provide more data to help you along.
> > > 
> > > -- 
> > >
> >
>
------------------------------------------------------------
> > > Gary Thomas                 |  Consulting for
> the
> > > MLB Associates              |    Embedded world
> > >
> >
>
------------------------------------------------------------
> > > 
> > > 
> > 
> > 
> > 
> > 	
> > 
> > 	
> > 		
> >
>
__________________________________________________________
> 
> > Find your next car at http://autos.yahoo.ca
> > 
> -- 
>
------------------------------------------------------------
> Gary Thomas                 |  Consulting for the
> MLB Associates              |    Embedded world
>
------------------------------------------------------------
> 
> 



	

	
		
__________________________________________________________ 
Find your next car at http://autos.yahoo.ca

-- 
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss

Re: [ECOS] Serial support for arm board

[Gary Thomas]

On Thu, 2005-10-27 at 15:22 -0400, Dave B. Sharp wrote:
> That would be great, however, I am assuming Redboot is
> a proper subset of Ecos and that I would have to
> install Ecos on the board, no? If I screw up the boot
> loader install then I am going to have even bigger
> problems.
>  Or can I just link in the appropriate libs and run
> from Redboot?

Exactly so.  Give a look at the eCos documentation
  http://sources.redhat.com/ecos/docs-latest/

>    Dave
> 
> --- Gary Thomas <gary@mlbassoc.com> wrote:
> 
> > On Thu, 2005-10-27 at 14:57 -0400, Dave B. Sharp
> > wrote:
> > > The serial support is simply for output. Since
> > there
> > > is  not gdb debugging support (I am assuming) I am
> > > resorting to printf() development and debugging.
> > If
> > > there is a better way then I am all ears. Other
> > than
> > > that, I just want to be able to see something work
> > > before proceeding.
> > >   The "wedge" is intended to be a program that is
> > > started by Redboot, does its thing, then in turn
> > will
> > > start up the Linux kernel, such as with a layer in
> > a
> > > protocol stack.
> > 
> > Why not write your wedge program as an eCos
> > application which
> > "does its thing" and then hands control over to
> > Linux (which
> > takes over the whole machine anyway)?  Then you have
> > full
> > facilities to use (serial I/O, GDB debugging, etc).
> > 
> > >   Cheers
> > >   Dave
> > > 
> > > --- Gary Thomas <gary@mlbassoc.com> wrote:
> > > 
> > > > On Thu, 2005-10-27 at 14:40 -0400, Dave B. Sharp
> > > > wrote:
> > > > > Ultimatately I am creating a wedge program to
> > go
> > > > > between Linux and Redboot, so I want the
> > program
> > > > to
> > > > > operate in the same mode as Linux (i.e. with
> > mmu,
> > > > > etc.).
> > > > 
> > > > You still haven't explained what this program is
> > to
> > > > do.
> > > > Why do you think you need a serial driver, etc?
> > > > What do you mean a "wedge between RedBoot and
> > > > Linux?"
> > > > 
> > > > >   Cheers
> > > > >    Dave
> > > > > 
> > > > > --- Gary Thomas <gary@mlbassoc.com> wrote:
> > > > > 
> > > > > > On Thu, 2005-10-27 at 14:20 -0400, Dave B.
> > Sharp
> > > > > > wrote:
> > > > > > >  I have an Arcom Viper PXA-255 Arm board
> > with
> > > > > > Redboot
> > > > > > > and would like to create a simple "Hello
> > > > World:
> > > > > > > application that I can "exec" (not go); I
> > > > gather
> > > > > > there
> > > > > > > is no GDB support. I am guessing that this
> > > > > > probably
> > > > > > > going to require some sort of rudamentary
> > > > serial
> > > > > > port
> > > > > > > driver support. Can anyone help w/ source
> > code
> > > > or
> > > > > > > pointers to info.
> > > > > > 
> > > > > > What do you mean 'exec' instead of 'go'? 
> > The
> > > > 'exec'
> > > > > > command
> > > > > > is really only designed for running Linux
> > > > kernels. 
> > > > > > The 'go'
> > > > > > command can be used for most anything else.
> > > > > > 
> > > > > > If you explain why you're thinking on this
> > path,
> > > > > > maybe we
> > > > > > can provide more data to help you along.
> > > > 
> > > > -- 
> > > >
> > >
> >
> ------------------------------------------------------------
> > > > Gary Thomas                 |  Consulting for
> > the
> > > > MLB Associates              |    Embedded world
> > > >
> > >
> >
> ------------------------------------------------------------
> > > > 
> > > > 
> > > 
> > > 
> > > 
> > > 	
> > > 
> > > 	
> > > 		
> > >
> >
> __________________________________________________________
> > 
> > > Find your next car at http://autos.yahoo.ca
> > > 
> > -- 
> >
> ------------------------------------------------------------
> > Gary Thomas                 |  Consulting for the
> > MLB Associates              |    Embedded world
> >
> ------------------------------------------------------------
> > 
> > 
> 
> 
> 
> 	
> 
> 	
> 		
> __________________________________________________________ 
> Find your next car at http://autos.yahoo.ca
> 
-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------


-- 
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss

Re: [ECOS] Serial support for arm board

[Dave B. Sharp]

 I have looked at the docs and knew that ecos
supported  gdb. I have not come across anything
specific to Redboot. The Redboot User's Guide is more
of a sys-admin book. Can you tell me where I might
find any information wrt using gdb with Redboot. If I
use the "exec" <my-app> (which I understand strips
away much of the environment that Redboot has built
up, such as mmu) can I still used gdb? i.e. will gdb
support an app that has been "exec"ed and not "go"ed? 
  I am not sure that doing a full ecos install on the
board is an option, beyond my control.
  Cheers
    Dave Sharp


--- Gary Thomas <gary@mlbassoc.com> wrote:

> On Thu, 2005-10-27 at 15:22 -0400, Dave B. Sharp
> wrote:
> > That would be great, however, I am assuming
> Redboot is
> > a proper subset of Ecos and that I would have to
> > install Ecos on the board, no? If I screw up the
> boot
> > loader install then I am going to have even bigger
> > problems.
> >  Or can I just link in the appropriate libs and
> run
> > from Redboot?
> 
> Exactly so.  Give a look at the eCos documentation
>   http://sources.redhat.com/ecos/docs-latest/
> 
> >    Dave
> > 
> > --- Gary Thomas <gary@mlbassoc.com> wrote:
> > 
> > > On Thu, 2005-10-27 at 14:57 -0400, Dave B. Sharp
> > > wrote:
> > > > The serial support is simply for output. Since
> > > there
> > > > is  not gdb debugging support (I am assuming)
> I am
> > > > resorting to printf() development and
> debugging.
> > > If
> > > > there is a better way then I am all ears.
> Other
> > > than
> > > > that, I just want to be able to see something
> work
> > > > before proceeding.
> > > >   The "wedge" is intended to be a program that
> is
> > > > started by Redboot, does its thing, then in
> turn
> > > will
> > > > start up the Linux kernel, such as with a
> layer in
> > > a
> > > > protocol stack.
> > > 
> > > Why not write your wedge program as an eCos
> > > application which
> > > "does its thing" and then hands control over to
> > > Linux (which
> > > takes over the whole machine anyway)?  Then you
> have
> > > full
> > > facilities to use (serial I/O, GDB debugging,
> etc).
> > > 
> > > >   Cheers
> > > >   Dave
> > > > 
> > > > --- Gary Thomas <gary@mlbassoc.com> wrote:
> > > > 
> > > > > On Thu, 2005-10-27 at 14:40 -0400, Dave B.
> Sharp
> > > > > wrote:
> > > > > > Ultimatately I am creating a wedge program
> to
> > > go
> > > > > > between Linux and Redboot, so I want the
> > > program
> > > > > to
> > > > > > operate in the same mode as Linux (i.e.
> with
> > > mmu,
> > > > > > etc.).
> > > > > 
> > > > > You still haven't explained what this
> program is
> > > to
> > > > > do.
> > > > > Why do you think you need a serial driver,
> etc?
> > > > > What do you mean a "wedge between RedBoot
> and
> > > > > Linux?"
> > > > > 
> > > > > >   Cheers
> > > > > >    Dave
> > > > > > 
> > > > > > --- Gary Thomas <gary@mlbassoc.com> wrote:
> > > > > > 
> > > > > > > On Thu, 2005-10-27 at 14:20 -0400, Dave
> B.
> > > Sharp
> > > > > > > wrote:
> > > > > > > >  I have an Arcom Viper PXA-255 Arm
> board
> > > with
> > > > > > > Redboot
> > > > > > > > and would like to create a simple
> "Hello
> > > > > World:
> > > > > > > > application that I can "exec" (not
> go); I
> > > > > gather
> > > > > > > there
> > > > > > > > is no GDB support. I am guessing that
> this
> > > > > > > probably
> > > > > > > > going to require some sort of
> rudamentary
> > > > > serial
> > > > > > > port
> > > > > > > > driver support. Can anyone help w/
> source
> > > code
> > > > > or
> > > > > > > > pointers to info.
> > > > > > > 
> > > > > > > What do you mean 'exec' instead of 'go'?
> 
> > > The
> > > > > 'exec'
> > > > > > > command
> > > > > > > is really only designed for running
> Linux
> > > > > kernels. 
> > > > > > > The 'go'
> > > > > > > command can be used for most anything
> else.
> > > > > > > 
> > > > > > > If you explain why you're thinking on
> this
> > > path,
> > > > > > > maybe we
> > > > > > > can provide more data to help you along.
> > > > > 
> > > > > -- 
> > > > >
> > > >
> > >
> >
>
------------------------------------------------------------
> > > > > Gary Thomas                 |  Consulting
> for
> > > the
> > > > > MLB Associates              |    Embedded
> world
> > > > >
> > > >
> > >
> >
>
------------------------------------------------------------
> > > > > 
> > > > > 
> > > > 
> > > > 
> > > > 
> > > > 	
> > > > 
> > > > 	
> > > > 		
> > > >
> > >
> >
>
__________________________________________________________
> > > 
> > > > Find your next car at http://autos.yahoo.ca
> > > > 
> > > -- 
> > >
> >
>
------------------------------------------------------------
> > > Gary Thomas                 |  Consulting for
> the
> > > MLB Associates              |    Embedded world
> > >
> >
>
------------------------------------------------------------
> > > 
> > > 
> > 
> > 
> > 
> > 	
> > 
> > 	
> > 		
> >
>
__________________________________________________________
> 
> > Find your next car at http://autos.yahoo.ca
> > 
> -- 
>
------------------------------------------------------------
> Gary Thomas                 |  Consulting for the
> MLB Associates              |    Embedded world
>
------------------------------------------------------------
> 
> 



	

	
		
__________________________________________________________ 
Find your next car at http://autos.yahoo.ca

-- 
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss