diff options
| -rw-r--r-- | ice40/pack.cc | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/ice40/pack.cc b/ice40/pack.cc index 7b03939a..9eb7d7c1 100644 --- a/ice40/pack.cc +++ b/ice40/pack.cc @@ -433,6 +433,8 @@ static std::unique_ptr<CellInfo> create_padin_gbuf(Context *ctx, CellInfo *cell, std::string gbuf_name) { // Find the matching SB_GB BEL connected to the same global network + if (!cell->attrs.count(ctx->id("BEL"))) + log_error("Unconstrained SB_GB_IO %s is not supported.\n", ctx->nameOf(cell)); BelId bel = ctx->getBelByName(ctx->id(cell->attrs[ctx->id("BEL")].as_string())); BelId gb_bel = find_padin_gbuf(ctx, bel, port_name); NPNR_ASSERT(gb_bel != BelId()); |