[lwip-users] Upgrading from 1.4.x to 2.0.2

[Wormsley, Jeffrey (Jeff)]

I’m trying to upgrade a project from 1.4.x to 2.0.2.  The project is on STM32F417 generated from CubeMX using IAR, FreeRTOS and wolfSSL.  It’s the demo WolfMQTT app if anyone has that to compare to. 

 

I’ve managed to build all of the search paths and file structure for 2.0.2 ok, and the project compiles, but then fails to link.  At issue is changes revolving around etharp.c, ethernet.c and ethernetif.c.  The original project apparently uses etharp.c and a function called etharp_send_ip() in multiple places for sending packets, but the 2.0.2 code expects this to be done from ethernet_output(), which my project doesn’t even have.  Other missing bits include ethzero, ethbroadcast and ethernet_input().  I think ethzero and ethbroadcast could be copied from the sample ethernet.c that came with 2.0.2.  Or is that code expected to be the only ethernet.c in the project, and the ethernet.c that CubeMX generated should be renamed or something?

 

Not being the person who originally built this project, I’m somewhat at a loss as to where to proceed.  Anyone have any pointers for moving from 1.4.x to 2.0.2 in a CubeMX STM32F4xx environment?

 

Thanks,

  Jeff.