Re: AW: [uracoli-devel] Feature request: ability to change a network address with Wibo

[Axel Wachtler]

Hi Charles & all, 



Am Mittwoch, 24. November 2010 12:57:54 schrieb Charles Goyard:
> Here's the situation :
> - I build 50 juggling balls with Wibo inside. Every ball has slightly
> different characteristics : weight, light diffusion, "feeling" etc...
> - The juggler, for various reasons, selected some balls over some
> others. To avoid fragmentation in the address sequences, we want to
> renumber the balls. While I have physical access to the balls, I don't
> have wire programming access without opening them, which is a hassle.

this sounds like it could be handled entirely from the application.

If the ball receives a "set_local_address" frame with its current
address, it stores the new addresses with a CRC in EEPROM. From 
now on, it checks at first the eeprom CRC and if it fails it falls back
to the Wibo parameters. 

You should also implement a "delete_local_address" command because you 
may want to reset the balls later to its original state.

To make it more secure, you can allow the config frames just if you 
can detect that the ball is charged.


Cheers, Axel

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Axel Wachtler
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