Setting 100ohm input on-chip differential termination in Pin planner or Assignment Editor in Quatus?

[xytech]

Hi there ,we use Arria 10 GX device to  receive LVDS data , and also use GXB RX lanes in high-speed communication.

For LVDS IO inputs, GXB RX data inputs and GXB ref-clocks,  we all need to set on-chip 100ohm differential termination. (no external resistors on board).

I check the A10-GPIO-handbook(section 5.5) and ug01143-XCVR-PHY user guide, seems that in Quartus Prime , both Pin planner or Assignment Editor can set 100 diff-terminations.

So what's the exact differences between Pin planner and Assignment Editor ? Should I use either of these two tools?  

PS: Edit qsf file with correct syntax should also be feasible to achieve our goal, but the ablve questions are about Quartus Prime 17.1 software GUI.

Thanks very much!

[xytech]

up

[sstrell]

You can set the assignment in either the Pin Planner or the Assignment Editor or write directly in the .qsf.  They all do the same thing.

[xytech]

Hi, 

since we can do the assignment in either Pin Planner or the Assignment Editor, why do these two tools exist at the same time? What is their difference? Thanks.

[AminT_Intel · Accepted solution]

Hello,

Assignment editor is the tool for assigning various pins. Pin Planner is special tool for pin assignments that include a panorama of pins and it is really helpful for more advanced designs since it you can see where are you assigning the pins.

Thank you.

[sstrell]

The Assignment Editor lets you create assignments for everything in a design, including I/O.  The Pin Planner is exclusively for I/O, making it easier to create I/O assignments through a graphical interface.