ERROR: Failed to route arc 0 of net '$abc$20823$aiger20822$2149', from SITEWIRE/DSP48_X0Y49/PCOUT23 to SITEWIRE/DSP48_X0Y51/PCIN23

[mirekez]

dsp_err_Failed_to_route_arc_0.zip

Design with DSPs generated by Yosys gives unreadable error.
It's possible that clock pins are used for data or vice versa.

[hansfbaier]

The error message:

ERROR: Failed to route arc 0 of net '$abc$20823$aiger20822$2149', from SITEWIRE/DSP48_X0Y49/PCOUT23 to SITEWIRE/DSP48_X0Y51/PCIN23.
0

says it placed one DSP on X0Y49 and the cascaded one to X0Y51.
But the cascade lines are connected to X0Y50.
So the packer seems to leave out X0Y50 for some reason. Will look into that.