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Failing CI for Lattice Nexus / prjoxide tests #803

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tcal-x opened this issue Aug 16, 2023 · 0 comments
Open

Failing CI for Lattice Nexus / prjoxide tests #803

tcal-x opened this issue Aug 16, 2023 · 0 comments

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@tcal-x
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tcal-x commented Aug 16, 2023

To reproduce locally:

make env
make enter
cd proj/hps_accel
make bitstream

Symptom is an error from nextpnr-nexus:

ERROR: Cell type 'CCU2' instantiated as 'tx_phase_FD1P3IX_Q_8_D_LUT4_Z_D_CCU2_S1_S0_CCU2_S1_CIN_CCU2_COUT' is not supported by this device.

Our device is LIFCL-17-8UWG72C.

It could be that our Litex is too far out of date. In an updated pure Litex installation, I can build the litex-boards target for the EVN board:

./lattice_crosslink_nx_evn.py --build --toolchain=oxide

This netlist does contain CCU2 cells. Its device is LIFCL-40-9BG400C.
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