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SK-AM64: enet_layer2_timesync SDK example - PTP packets are not returned

Part Number: SK-AM64

Hello,

 I would like to check Timesync (PTP) example from SDK (mcu_plus_sdk_am64x_08_02_00_31) but it seems that it doesn't work correctly for me - it doesn't return PTP packets that were sent to it..

I started the example in Code Composer Studio and loaded it to R5 core:


Then I sent PTPv2 packet from ptp4l application. It have tried the same configuration of PTP as here. In Wireshark I can see the ptp packets on the interface that is connected directly to AM64 SK board:

but there is no response from the AM64 SK board.

I can add that the ethernet cable is connected to Port 1 of the board and application recognizes it saying: "MAC Port 1: link up" so it seems that physically connection is ok.

Any idea what is wrong?