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author | gatecat <gatecat@ds0.me> | 2021-02-20 10:51:30 +0000 |
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committer | gatecat <gatecat@ds0.me> | 2021-02-20 10:51:30 +0000 |
commit | e571c707b50a601787590b9752205336ee1c3f6d (patch) | |
tree | 7927c1626df14356202b36ffd3a29d5a2c9cf336 /docs/generic.md | |
parent | 8ab36b4a0515a39b38744ca0a049bee0c17a8cb3 (diff) | |
download | nextpnr-e571c707b50a601787590b9752205336ee1c3f6d.tar.gz nextpnr-e571c707b50a601787590b9752205336ee1c3f6d.tar.bz2 nextpnr-e571c707b50a601787590b9752205336ee1c3f6d.zip |
Update generic.md
Signed-off-by: gatecat <gatecat@ds0.me>
Diffstat (limited to 'docs/generic.md')
-rw-r--r-- | docs/generic.md | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/docs/generic.md b/docs/generic.md index 5c079a7b..0562bed3 100644 --- a/docs/generic.md +++ b/docs/generic.md @@ -22,7 +22,7 @@ so named arguments may be used. Adds a wire with a name, type (for user purposes only, ignored by all nextpnr code other than the UI) to the FPGA description. x and y give a nominal location of the wire for delay estimation purposes. Delay estimates are important for router performance (as the router uses an A* type algorithm), even if timing is not of importance. -### addPip(IdString name, IdString type, IdString srcWire, IdString dstWire, DelayInfo delay, Loc loc); +### addPip(IdString name, IdString type, IdString srcWire, IdString dstWire, float delay, Loc loc); Adds a pip (programmable connection between two named wires). Pip delays that correspond to delay estimates are important for router performance (as the router uses an A* type algorithm), even if timing is otherwise not of importance. @@ -77,16 +77,16 @@ Set the timing class of a port on a particular cell to a clock input. _NOTE: All cell timing functions apply to an individual named cell and not a cell type. This is because cell-specific configuration might affect timing, e.g. whether or not the register is used for a slice._ -### void addCellTimingDelay(IdString cell, IdString fromPort, IdString toPort, DelayInfo delay); +### void addCellTimingDelay(IdString cell, IdString fromPort, IdString toPort, float delay); Specify the combinational delay between two ports of a cell, and set the timing class of those ports as combinational input/output. -### void addCellTimingSetupHold(IdString cell, IdString port, IdString clock, DelayInfo setup, DelayInfo hold); +### void addCellTimingSetupHold(IdString cell, IdString port, IdString clock, float setup, float hold); Specify setup and hold timings for a port of a cell, and set the timing class of that port as register input. -### void addCellTimingClockToOut(IdString cell, IdString port, IdString clock, DelayInfo clktoq); +### void addCellTimingClockToOut(IdString cell, IdString port, IdString clock, float clktoq); Specify clock-to-out time for a port of a cell, and set the timing class of that port as register output. |