Ethernet 100g cant be placed at the location on Agilex 7 FPGA

Hi redst,

I think you might use the wrong Quad in this case. You are suggested to use the f-tile-channel-placement tool before do the pin assignment for the Quad. Different topology will show different available Quad.

Best regards,

Zi Ying

Hi redst,

You can get the F tile Channel Placement Tool in link below, Section 7.1, pg 231, https://www.intel.com/content/www/us/en/docs/programmable/683872/23-1-4-4-0/f-tile-channel-placement-tool.html

Best regards,

Zi Ying

Thank your for your answers.

To be honest I didn't understand how to use F tile Channel Placement Tool in my case. I tried Quartus tool Tile Interface Planner and found out that when I assign pin to a specific location the tool assigns the rest of locations automatically.

In my case it looked like this.

I want to use QSFPDD0 socket so I looked into schematic and found out what pin numbers I should use:

Then I go to Tile Interface Planner and in "Plan design" bookmark I see that input signal of my design qsfpdd_rx_p[0] has the next options for placement:

I don't see here the right pin number. But In the same file with schematic i can see such note:

Anyways I see that pin's location of QSFPDD_RX_P0 M1 is in list for qsfpdd_rx_p[3] so it seems they are really swapped.

Then I choose M1 location for qsfpdd_rx_p[3] and as a result all the rest of locations are mapped automatically:

And the Ethernet hard IP now has its location set to:

And the problem here that I cant move transceivers to another quad as they have only one location option:

The same with reference clk pll. The tool allows me to choose location:

But there is only one option

So in the end after I did all these assignments assembling passes with no errors. But now I'm not sure whether it will work with those swapped pins or not.

Hi,

Would you mind to share your .qar file? So that I can try debug issue from my side.

Best regards,

Zi Ying

Hello.

I will try to create a demo project.

But right now I'm facing a problem as I don't see the link is up after programming the device.

During compilation I got this kind of messages appearing:

Critical Warning(23469): The block fm87_top_bd|mac_subsystem_0|eth_mac|eth_f_0|hip_inst|per_xcvr[0].x_bb_f_ux|x_bb_f_ux_tx did not set the following parameters 
Critical Warning(23469): The block fm87_top_bd|mac_subsystem_0|eth_mac|eth_f_0|hip_inst|per_xcvr[1].x_bb_f_ux|x_bb_f_ux_tx did not set the following parameters 
Critical Warning(23469): The block fm87_top_bd|mac_subsystem_0|eth_mac|eth_f_0|hip_inst|per_xcvr[2].x_bb_f_ux|x_bb_f_ux_tx did not set the following parameters 
Critical Warning(23469): The block fm87_top_bd|mac_subsystem_0|eth_mac|eth_f_0|hip_inst|per_xcvr[3].x_bb_f_ux|x_bb_f_ux_tx did not set the following parameters 

Also using signal tap I could see what was going on on status pins of the ethernet IP:

Also i have the next state of QSFPDD control signals:

qsfpdd0_resetl = 1'b1;
qsfpdd0_modsell = 1'b0;
qsfpdd0_lpmode = 1'b1;

Right now I have no idea of what can be wrong and what can I do to bring the link up.

Hello.

I have an update. It seems I could establish the link. I've changed cable I used, assigned all HIP from the scratch and the link got up.

Hi,

Great to hear you that you establish the link successfully. Since your issue has been resolved, I am now close the case. If you have any question after the case close, please do feel free to submit another issue.

Best regards,

Zi Ying