[En-Nut-Discussion] IP Checksum calculation broken. Reenabled old algorithm for the meantime.

Bernard Fouché bernard.fouche at kuantic.com
Mon Jun 18 14:37:02 CEST 2012

Le 18/06/2012 14:07, Harald Kipp a écrit :
> I'm not yet familiar enough with the Cortex platform. But it looks 
> strange to me, that no alignment is required at all. I expected at 
> least 16-bit alignment.
The Cortex-M3 core doesn't require word alignement, but for some special 
cases like the LDM/STM instructions, stack push/pop, LDREX/STREX and 
bitband operations. If the address isn't aligned the core just takes 
more time to execute the instruction but does the job anyway.


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