[En-Nut-Discussion] Over-the-network upgrade of user code

[Brett Abbott]

Hi

Have a look at the appload ethernut sample.  This provides a tftp option 
over ethernet and works well.  Essentially you use the bootloader 
feature of the atmel processor.

We've got it working over ethernet, gprs and serial/gsm.  Another more 
secure option is to load your program code into the ethernut2's flash 
and then get your bootloader to reprogram from there.  This allows you 
to use TCPIP and incorporate easier to manage security protocols.

Cheers
Brett

Elan Feingold wrote:
> Is it insane to think that one might be able to update the user code 
> over the network, writing it to program flash? Has anyone done it?
>
> Thanks,
>
> -elan
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>
>

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Brett Abbott, Managing Director, Digital Telemetry Limited
Email: Brett.Abbott at digital-telemetry.com
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