TMDSCNCD263: AM2634X: Managing 2 ethernet ports from the same lwip stack

Prashant Hegde

Part Number: TMDSCNCD263

Tool/software:

I want to assign 2 ethernet ports to the lwip stack. The stack needs to send and receive UDP packets using the sockets bound to two different IP addresses. Is it possible? If yes, how does the memory pools for each interface work? Do you have any example for this scenario?

6 months ago

0 Susan Moore 6 months ago

TI__Expert 5040 points

Hello,

For a list of Ethernet Examples for CPSW, please see: https://software-dl.ti.com/mcu-plus-sdk/esd/AM263X/latest/exports/docs/api_guide_am263x/EXAMPLES_NETWORKING.html

We have some examples on setting up lwip sockets and how the memory works, so I would go through them and see what would work best for your application.

I believe it would be possible to set up DUAL MAC mode to assign separate IP addresses to the ports for the same lwip stack, but I am double checking with our software team.

Thank you,
Susan

0 Prashant Hegde 5 months ago in reply to Susan Moore

Prodigy 20 points

Thanks for the reply. Sorry for the delay. Was not able to work on this issue.

How do we configure the CPSW in the DUAL MAC mode? Just add two MACs? I could not find any configuration that sets to DUAL MAC mode? Also, how to add two virtual host ports? Adding two host ports would be enough?

0 Susan Moore 5 months ago in reply to Prashant Hegde

TI__Expert 5040 points

Apologies for the delay,

The enet_lwip_cpsw example available in the SDK demonstrates a DUAL MAC mode configuration.

Regards,

Susan

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TMDSCNCD263: AM2634X: Managing 2 ethernet ports from the same lwip stack