Hi Ran, What about using memcpy, since it can handle unaligned access?
#define ip_addr_copy(dest, src) memcpy(&((dest).addr), &((src).addr), sizeof((dest).addr)) Maybe that would work? I am not 100% sure though. - Wayne On Mon, Sep 25, 2017 at 4:45 PM, Dirk Ziegelmeier <[email protected]> wrote: > Can't help you with IAR, but maybe you can tell your processor to handle > unaligned access. Depending on your CPU type (following example is > Cortex-A9, Altera Cyclone V) your startup code may look like this (gcc asm): > > Reset_Handler: > MRC p15, 0, r0, c1, c0, 0 /* ; Read CP15 System Control > register */ > BIC r0, r0, #(0x1 << 12) /* ; Disable I Cache */ > BIC r0, r0, #(0x1 << 11) /* ; Disable branch > predictor */ > BIC r0, r0, #(0x1 << 2) /* ; Disable D Cache */ > BIC r0, r0, #(0x1 << 1) /* ; Disable Alignment checks > */ > BIC r0, r0, #(0x1 << 0) /* ; Disable MMU */ > MCR p15, 0, r0, c1, c0, 0 /* ; Setup mode */ > > Ciao > Dirk > > _______________________________________________ > lwip-users mailing list > [email protected] > https://lists.nongnu.org/mailman/listinfo/lwip-users >
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