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Yes, it looks like the TSE isn't sending the packet further, which is odd because it looks like a broadcast packet. I didn't have time to check your project yesterday, but I just did and I don't see anything wrong in it.
I see that your driver is writing CMD_CONFIG=0x04000203. It does enable both tx and rx, but it also sets RX_ERR_DISC, that tells the TSE to discard erroneous frames. Usually this is better, but in order to debug your system you could try and set it to 0 (CMD_CONFIG=0x00000203) and see if something gets sent.
You can also enable the statistics (in the TSE settings in QSys) and then read the counters from your software to see if anything changes.
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Thank you for your time and help.. I did not solve the problem with the DP83848C PHY but on my board I have designed also the SFP cage with the SFP module for optical and copper ethernet modularity. When the DP83848C had problems I have just tried to enable the GX transciever and try if the TSE will work with the SFP modules.. And :) for my surprise it is working like a charm. The design od DP83848C has been taken only as a backdoor if the SFP will no work on the board, but suddenly the situation is vice-versa and everything is OK.. But anyway thank you for your time and helpful answers!
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