Our board uses two TDA4, and the Ethernet between them is connected through sgmii (port 2 and 1000m), and TDA4-B uses three PHY chips (100M).Connect a PC (in the same network segment) to the TDA4-B100M network port. Now, the PC sends a large packet (40690) to TDA4-A using Ping, but the PC cannot receive the reply from tda4-a. the packet capture using Wireshark is shown as follows:
However, we connect TDA4-A to the PC and Ping the larger packets to TDA4-B. the PC can receive a normal reply, and Wireshark packet capturing is also normal, as shown in the following figure:
I need Ti experts to help analyze it. Thank you!
