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| author | Maciej Kurc <mkurc@antmicro.com> | 2022-05-12 11:55:16 +0200 |
|---|---|---|
| committer | Maciej Kurc <mkurc@antmicro.com> | 2022-05-12 11:55:16 +0200 |
| commit | d75c45c63f444af0349463346101c9d7d7ae6283 (patch) | |
| tree | 4dc7868ffbb4d86e45fb5874e17b88d747e72bfc /fpga_interchange/site_arch.cc | |
| parent | 7c7a4f095921f4f6dbec27a73862e5d26ffb230e (diff) | |
| download | nextpnr-d75c45c63f444af0349463346101c9d7d7ae6283.tar.gz nextpnr-d75c45c63f444af0349463346101c9d7d7ae6283.tar.bz2 nextpnr-d75c45c63f444af0349463346101c9d7d7ae6283.zip | |
Added fallback to VCC as the preferred constant if the architecture does not specify one.
Signed-off-by: Maciej Kurc <mkurc@antmicro.com>
Diffstat (limited to 'fpga_interchange/site_arch.cc')
| -rw-r--r-- | fpga_interchange/site_arch.cc | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/fpga_interchange/site_arch.cc b/fpga_interchange/site_arch.cc index bb9c9a11..d0a5c48c 100644 --- a/fpga_interchange/site_arch.cc +++ b/fpga_interchange/site_arch.cc @@ -140,7 +140,12 @@ SiteArch::SiteArch(const SiteInformation *site_info) IdString gnd_net_name(ctx->chip_info->constants->gnd_net_name); IdString const_net_name(ctx->chip_info->constants->best_constant_net); - NPNR_ASSERT(const_net_name == vcc_net_name || const_net_name == gnd_net_name); + NPNR_ASSERT(const_net_name == IdString() || const_net_name == vcc_net_name || const_net_name == gnd_net_name); + + // FIXME: Use VCC if the architecture does not device the best constant + if (const_net_name == IdString()) { + const_net_name = vcc_net_name; + } for (CellInfo *cell : site_info->cells_in_site) { for (const auto &pin_pair : cell->cell_bel_pins) { |