Re: [avr-gcc-list] Options on avr-gcc

[Joerg Wunsch]

Javier Almansa Sobrino <address@hidden> wrote:

> Any one knows what option I must to pass to AVR-GCC when compile to
> avoid this.

The best option is to don't try rolling your own loops at all.
Instead, use the functions from <util/delay.h>.  There are two
functions (with a different argument range) that can delay for 3 (up
to 256 times) or 4 (up to 65536 times) per loop, and there are two
convenience functions that can delay for a (floating-point) number of
microseconds or milliseconds, respectively, based on the CPU frequency
passed in as F_CPU.  The latter will only work correctly though if
optimization is enabled.

-- 
cheers, J"org               .-.-.   --... ...--   -.. .  DL8DTL

http://www.sax.de/~joerg/                        NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)