[lwip-users] Lwip on external ram

[Milan V K]

Hi everyone,

 

I am trying to develop an Open 62541 OPC UA Server application using LwiP socket Interface. The socket binding works without issues, the Server set up without any issues. But as soon as a Client tries to connect with the Server, the Lwip response becomes slow.(TTL > ~2500). Could it be any memory issues on LwiP? I am not getting any hard fault or stack Overflow. But I wanted to make sure it is not a Memory related issue and tried assiging Attribute : _attribute_((section(“External_Ram“) for ram_heap in mem.h. But then it seems the allocations are not working. What else should I check in this case?

 

My platform Details: STM 32 + 128 K internal RAM + 2 MB external RAM

freeRTOS: 8.0.2 + Lwip 1.4.1(STM port)

 

Thanks in advance.

 

Milan