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Altera_Forum's avatar
Altera_Forum
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14 years ago

DE2-115 Ethernet throughput

I'm trying to send a video flow from my DE2-115 to a PC. To send 320*240 images with 16bit pixels with 25fps, I need a throughput of 320*240*16*25 = 30,720,000bit/s (below the 100Mbit/s offered by th...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

I believe your challenge is that the NIOS is a softcore with the same processing power as a CPU from 1997. http://www.tomshardware.com/reviews/mother-cpu-charts-2005,1175.html (http://www.tomshardware.com/reviews/mother-cpu-charts-2005,1175.html)

Add the TCP/IP stack, interrupt processing etc - it's just gonna be slow.

For more speed you would need to interface with the ethernet chip or maybe the TSE core directly - handling framing and higher level protocols yourself.

M.