I'm working for a LWIP physical driver. The system works in a NO_SYS manner, and now it can register a private IP from the Router. However, the big problem is, after dhcp_start successfully, I still can't receive any frame from my host.
I login the Router and see the right host and MAC which was preset in the LWIP. Does it means the physical layer, my driver, has worked correctly?
I debug the dhcp start process, where it looks the system can receive some message. But after that, when I ping the system on my host PC, nothing can be received.
Thanks for any advice!! B.R.