hard20 pts · first answer countsembedded-cmemory-layout

Aligning a DMA buffer

A DMA engine on a Cortex-M7 needs buffers aligned to the 32-byte cache line. Which declaration gives that in standard C11?

A.static uint8_t buf[256] __attribute__((packed));B.static volatile uint8_t buf[256 + 32];C.alignas(32) static uint8_t buf[256];D.static uint8_t buf[256] = {32};

Discussion 0

Join free to post in the discussion.

Aligning a DMA buffer

Discussion 0

Related questions