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elms | daveshah: Do you know the source of the ice40 timing models used by nextpnr? May be I'm missing the link between icestorm's timing data. | 20:54 |
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daveshah | elms: see https://github.com/YosysHQ/nextpnr/blob/master/ice40/chipdb.py#L410 | 20:55 |
tpb | Title: nextpnr/chipdb.py at master · YosysHQ/nextpnr · GitHub (at github.com) | 20:55 |
daveshah | and https://github.com/YosysHQ/nextpnr/blob/master/ice40/chipdb.py#L229 | 20:55 |
tpb | Title: nextpnr/chipdb.py at master · YosysHQ/nextpnr · GitHub (at github.com) | 20:55 |
elms | daveshah: thanks | 20:57 |
elms | daveshah: what about the models in delay.cc https://github.com/YosysHQ/nextpnr/blob/master/ice40/delay.cc#L126 ? | 20:58 |
tpb | Title: nextpnr/delay.cc at master · YosysHQ/nextpnr · GitHub (at github.com) | 20:58 |
daveshah | They are delay estimates used during placement | 20:59 |
daveshah | I think clifford used https://github.com/YosysHQ/nextpnr/blob/master/ice40/tmfuzz.py to create it | 20:59 |
tpb | Title: nextpnr/tmfuzz.py at master · YosysHQ/nextpnr · GitHub (at github.com) | 20:59 |
elms | daveshah: that looks like it may be. Thanks | 21:01 |
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