Re: [avr-gcc-list] Strange issues with 16-bit values

[Bob Paddock]

> while(TCNT3<(uint16_t)benc_period*224UL/255);

One can never have to many parenthesise when
writing something like the above.

I did not look at your code so the following may not be relevant.

If you are having issues with 16-bit register values,
make sure that you are not accessing the same timer
from both inside *and* outside of the interrupt
concurrently.  Nor should you nest interrupts of the
same 16-bit timer (not likely you are doing this).
You will get corrupted values at very random intervals.
The problem is explained here:

http://www.atmel.com/dyn/resources/prod_documents/doc1493.pdf