Receiceive own frame

Hello,we have an application (realtime ethernet) where we receive our own frame, that has been sent before. We work on the DMA level without any TCP/IP stack. Sending and receiving frames works right, but we don’t receive the frames we sent by our own. We receive only frames from other nodes, although we set the Ethernet Controller in promiscous mode (Station Adress Filter Register). Of course, the frames we send are broadcast frames. Any idea to solve this problem? Thanks

I can’t identify specific problems, but a couple of questions do come to mind. 1. Is the NIC in Simplex or Duplex mode? 2. Does the hub or switch you are using echo packets back to the source? I suspect you need to add your own packets into the receive stream instead of expecting the NIC or stack to echo them back to you.