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Altera_Forum's avatar
Altera_Forum
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9 years ago

Pause needed between multiple DMA transfers?

I try to sequentially read buffers from PIO at the fastest possible speed with NIOS II/f. Everything works fine, however the speed seems to be limited to ~25 MB/s, independently of the buffer si...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
9 years ago

You are completely right, thanks! I copied the done() and rx_done part from somewhere

without giving it sufficient attention. By resetting rx_done back to 0 when needed

I can now omit the usleep(). However, I still am stuck at the ~25 MB/s. The next

puzzle...