RE: [ECOS] application update in fis

RE: [ECOS] application update in fis

[bob.koninckx]

The cleanest approach (IMHO) is to use jffs2 and store your 
images (possibly zipped to conserve memory) in the flash 
filesystem.
Redboot can mount the flash filesystem and load the image. 
The application can afterwards also mount the filesystem and 
overwrite the image.

Bob

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RE: [ECOS] application update in fis

[Rick Davis]

What I do is place the new application on a PC that has a TFTP server
running. The application then does a "GET" to retrieve the application in to
a RAM buffer. I then unlock the area of the FLASH where the application
resides, erase the area, write the new code, and the lock the are.
Lock/Unlock is not supported by all configurations so you may not need to do
the Lock/Unlock. After that is done, you could automatically reboot, or let
the user do it.

	Rick
 

-----Original Message-----
From: Gary Thomas [mailto:gary@mlbassoc.com] 
Sent: Monday, April 25, 2005 8:39 AM
To: Rini van Zetten
Cc: eCos Discussion
Subject: Re: [ECOS] application update in fis

On Mon, 2005-04-25 at 10:24 +0200, Rini van Zetten wrote:
> Hello list.
> 
> I have the following setup :
> 
>     - Redboot runs from an prom
>     - redboot script load application from fis and start it
> 
> 
> Now i want the application to write to fis to update to a newer 
> version. Is this possible ? or are ther other ways to do 'field' 
> updates

Currently the virtual vector interface (hal_if) only defines "get"
operations.  It should be possible to extend them to "put"
operations as well, but that would require some additions to both RedBoot
and the hdl_if code.

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




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Re: [ECOS] application update in fis

[Gary Thomas]

On Mon, 2005-04-25 at 10:24 +0200, Rini van Zetten wrote:
> Hello list.
> 
> I have the following setup :
> 
>     - Redboot runs from an prom
>     - redboot script load application from fis and start it
> 
> 
> Now i want the application to write to fis to update to a newer version. Is 
> this possible ? or are ther other ways to do 'field' updates

Currently the virtual vector interface (hal_if) only defines 
"get" operations.  It should be possible to extend them to "put"
operations as well, but that would require some additions to 
both RedBoot and the hdl_if code.

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


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[ECOS] application update in fis

[Rini van Zetten]

Hello list.

I have the following setup :

    - Redboot runs from an prom
    - redboot script load application from fis and start it


Now i want the application to write to fis to update to a newer version. Is 
this possible ? or are ther other ways to do 'field' updates

Regards,
Rini 


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