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

[Charles Goyard]

Hi,
> Well, you can use the tool w/o a hexfile and avrdude with the -D option
> ("don't auto erase flash before programming"), but this would just allow
> you to punch "0" into existing "1" bits.
Yes, but as far as I know, avrdude isn't wibo compatible yet :).

> For a self modifying bootloader code I need to look into the datasheet if this
> is possible. The bootloader would read the last page into RAM, modify the
> nodeconfig values, erase the page and reprogramm it.
It seems possible, but it can be protected by the lock bits, so we have 
to check for that first.

> On the other hand, how about to have the option to store the nodeconfig data
> at the end of the eeprom and use this record, if the CRC is OK.
Having two sources for configuration sounds like asking for trouble. 
Maybe it's safe enough, I'm not sure. A compile-time option for 
selecting either eeprom or flash storage may help.


--
Charlot