Reading data from FPGA on HPS with Linux - what's the best way to do it?

Hi Tiwari

I, indeed, use mmap() to gain access to FPGA memory space. But my question was about what happens during actual read and write.

Should I read the memory word-by-word using alt_read_word() function or reading big memory chunks using standard memcpy() also OK?

I am asking it because I'm not sure how ARM's data caching will behave during mempcpy() and I'm afraid caching can cause data corruption.