[avr-gcc-list] Inicial value

[451707]

Hello,perhaps is a trivial question:
I'm working with avr-gcc and when I give initial value to two fields of a struc
at the beginnig of the main loop of my program all the fields have the same
value, the initial value.
I've check that and the end of the loop the value of fields is ok but at the
beggining of the loop it's become to the initial value.
What's the problem?
Thanks