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FvM
Super Contributor
Super ContributorAutomatically added negative node for TDS output doesn't work with Agilex 5
Hello, I'm trying to build a basic SE to DE converter on Agilex 5 module SEtoDE (
input SE,
output DE
);
assign DE = SE;
endmodule I assign respective IO standards and use locations...
FvMSuper Contributor
Super ContributorHi Sheng,
I think, the behaviour is almost clear. There's a bug in Agilex 3/5 specific fitter code that causes partial failure of automatic negative node assignment. As a workaround you can assign TDS IO-standard to negative pin explicitely in Assignment Editor or .qsf. Changing your design to Agilex 7 and back to Agilex 5 apparently also adds this assignment, I didn't try.
However seeing TDS IO-standard in Pin Planner doesn't mean it's actually assigned, must be also present in .qsf, as described in first post.
I presume the bug can be easily fixed in Quartus.
Regards
Frank
ShengN_alteraSuper Contributor
Super Contributor[DELETED]
