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Altera_Forum's avatar
Altera_Forum
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17 years ago

Avalon MM preformance

I just started to play with NIOS2 and its parts, and after I could get my_first_niosII.. to work, I was curious about how is the speed of pheriperials, for example the uC like PIO. This one is very s...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

Exchanging data through an Avalon MM interface is not the fastest way. The CPU looses a lot of cycles fetching the data and writing it back. If you need a fast parallel interface, you should rather use an Avalon Stream interface.

Have a look at the SGDMA component to read/write data from memory to an Avalon stream.