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Cannot Build Cu Hello World with IceStorm
Has anyone on here been successful at building for Cu using IceStorm?  I built my toolchain by installing apio and following the instructions on FPGAWars' GitHub.  What is the ".sdc constraints" error about, and is it failing to build because I am specifying nextpnr instead of arachne-pnr and Alchitry Labs doesn't like it?  If that is the case, can Alchitry Labs be updated to use nextpnr, since arachne-pnr is deprecated?

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.png   Alchitry Cu Build.png (Size: 45.5 KB / Downloads: 3)

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