07-25-2019 11:14 PM
I am trying internal ethernet loopback using pcs/pma or sgmii ip core in zcu102 board, For this i selected the ip core from ip catalog in vivado, After that i have to configure this ip core according to loopback configuration.
I just wrote
assign txp = rxp;
assign txn = rxn;
in demo_tb file, what i have to do other changes and where i don't know and also i am not getting gmii_txd data.
I am attaching the screenshot of stimulus_tb.v and simulation window to point where i am facing problem.
Thank youplease provide solution in detailed.
07-26-2019 08:16 AM
I put the GT in the example design and then in the **_support.v file there is the line:
change this to:
This will give you near end PMA loopback. Remove the TXP and TXN assignments. This file will be the second file in the example design hierarchy.
07-26-2019 09:24 PM
Thank you for your response sir , I will try it first then i will give you status of progress.
I have one more doubt sir, why gmii_txd data is not sending. In simulation it is showing 00 as you can see. So sir i need to change somewhere or not please tell the things sir.
07-26-2019 10:41 PM
Sir I also added device specific transceiver(GT) in my example design but sir in my **_support.v file the .loopback_in(3'b000) is not there. i don't know why.
I am sharing my core tab screenshot so please find the attachment.
please guide me where i did mistake?
Thank you sir
07-27-2019 02:10 AM
Sir I enable the GT in the example design option in the shared logic tab in our example design after that generate my example design also but sir .loopback_int(3'b000) is not showing in my **_support.v file.
if anyone have solution please guide us also.