DE2-115 Ethernet throughput

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You are using TCP with NIOS CPU, right?

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Yes

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Try to make NIOS CPU faster. Use higher clock, faster memory, larger cache, etc.

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I already tried to increase clock (from 100MHz to 150MHz), but I got only aboit 10% more throughput.

I can't increase the clock anymore, because of the memory.

I will try to increase cache, but I don't think it will increase my throughput enough.

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Then you could try to use UDP instead of TCP.

Lastly, you could use hardware streaming instead of TCP/UDP stack. Search for "UDP offload example"

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So you think there is no other possibilites ? Maybe with a DE4 ?

I'm afraid that there will be to many errors if I use UDP or hardware streaming instead of TCP.

Thank you for your help.