Re: [avrdude-dev] config file change

[Joerg Wunsch]

As Theodore A. Roth wrote:

> Well, thinking about this a bit more, we should probably read the
> 3-byte signature value any ways. Then have sig_fam_id and sig_dev_id
> in the configure file for the device. If the read/config values
> don't match, we mostly screwed.

That's not nice.  The reason i left uisp aside and started with
avrprog was that i've got a couple of devices (one AT90S1200, one
AT90S2333) that misread their signature.  One reads as 0xff, 0xff,
0xff (this possibility is even described in the AVR910 appnote), the
'1200 reads out as 0x00, 0x00, 0x00.

So it's obviously easy to trash the signature ID.  AVR910 explicitly
requires a programmer to allow programming anyway.
-- 
J"org Wunsch                                           Unix support engineer
address@hidden        http://www.interface-systems.de/~j/