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coolrunner2: Initial mapping of DFFs

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All DFFs map to either FDCP (matches Xilinx) or a custom FDCP_N
(negative-edge triggered)
This commit is contained in:
Robert Ou 2017-06-25 20:16:43 -07:00
parent 1eb5dee799
commit 4af5baab21
4 changed files with 76 additions and 0 deletions
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4
techlibs/coolrunner2/synth_coolrunner2.cpp
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@ -145,6 +145,7 @@ struct SynthCoolrunner2Pass : public ScriptPass
{
run("opt -fast -full");
run("techmap");
run("dfflibmap -prepare -liberty +/coolrunner2/xc2_dff.lib");
}
if (check_label("map_pla"))
@ -156,6 +157,9 @@ struct SynthCoolrunner2Pass : public ScriptPass
if (check_label("map_cells"))
{
run("dfflibmap -liberty +/coolrunner2/xc2_dff.lib");
run("dffinit -ff FDCP Q INIT");
run("dffinit -ff FDCP_N Q INIT");
run("iopadmap -bits -inpad IBUF O:I -outpad IOBUFE I:IO -inoutpad IOBUFE O:IO -toutpad IOBUFE E:I:IO -tinoutpad IOBUFE E:O:I:IO");
}