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ice40: Add timing paths for carry

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Signed-off-by: David Shah <davey1576@gmail.com>
This commit is contained in:
David Shah 2018-06-27 12:23:12 +02:00
parent b0b16a344a
commit 53ce81343a
1 changed files with 9 additions and 0 deletions
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9
ice40/arch.cc
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@ -494,6 +494,15 @@ bool Arch::getCellDelay(const CellInfo *cell, IdString fromPort, IdString toPort
delay = 450;
return true;
}
} else if (fromPort == id("CI") && toPort == id("CO")) {
delay = 120;
return true;
} else if (fromPort == id("I1") && toPort == id("CO")) {
delay = 260;
return true;
} else if (fromPort == id("I2") && toPort == id("CO")) {
delay = 230;
return true;
}
}
return false;