[avr-libc-dev] sscanf %f

[Steve Franks]

Bueno~

We have just upgraded to avr-gcc 411 and avr-libc 145 (I think, whatever you
get after a portsnap fetch).

Simultanously, moved from the m128 to the m2561, because our flash usage is
about 126k <yikes!>.

Mysteriously, calling sscanf(char*, "%f   %f", &f1, &f2) causes a processor
reset now, least as far as we can tell.

Things we did right (or so we hope): changed our heapstart & heapend to
account for move from 4k to 8k ram (using xram), added -u vfscanf and
-lscanf_flt to LDFLAGS (which was there & working on the m128).

It appears that sscanf with integer values works just fine.  Only floats
cause a crash.  We are on a different libscanf_flt now, obviously, as we're
in the lib/avr6 instead of lib/avr5 folder....

Ideas?  Look elsewhere entirely, perhaps?

Steve