mirror of https://github.com/YosysHQ/nextpnr.git
When implementing concepts such as partition pins or deliberately split nets, there's a need for something that looks like a cell (starts/ends routing with pins on nets, has timing data) but isn't mapped to a fixed bel in the architecture, but instead can have pin mappings defined at runtime. The PseudoCell allows this by providing an alternate, virtual-function based API for such cells. When a cell has `pseudo_cell` used, instead of calling functions such as getBelPinWire, getBelLocation or getCellDelay in the Arch API; such data is provided by the cell itself, fully flexible at runtime regardless of arch, via methods on the PseudoCell implementation. |
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| .. | ||
| archapi.md | ||
| coding.md | ||
| constraints.md | ||
| faq.md | ||
| generic.md | ||
| ice40.md | ||
| netlist.md | ||
| nexus.md | ||
| python.md | ||
| report.md | ||
| viaduct.md | ||