Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Network speed between to 2 processors

I have an interesting issue that i can't get to the bottom of. So i have written software to transmit data at a consistent 32Mbps to a Windows PC this works well. Occasionally i see some delay in sen...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Try to put a PC with an Ethernet spy application such as Wireshark to see what kind of packets run between the two boards. Look out especially for TCP window size adjustments packets. I had the problem once, with the TSE's rx buffer filling too fast and some packets were lost. If you can't reduce the TCP window size in the stack (I don't know if it's possible) increasing the rx buffer size to something above the window size can improve the traffic a lot in some situations.