diff options
Diffstat (limited to 'techlibs/xilinx/synth_xilinx.cc')
| -rw-r--r-- | techlibs/xilinx/synth_xilinx.cc | 37 |
1 files changed, 36 insertions, 1 deletions
diff --git a/techlibs/xilinx/synth_xilinx.cc b/techlibs/xilinx/synth_xilinx.cc index d143c6823..a7362d26b 100644 --- a/techlibs/xilinx/synth_xilinx.cc +++ b/techlibs/xilinx/synth_xilinx.cc @@ -63,6 +63,9 @@ struct SynthXilinxPass : public ScriptPass log(" generate an output netlist (and BLIF file) suitable for VPR\n"); log(" (this feature is experimental and incomplete)\n"); log("\n"); + log(" -ise\n"); + log(" generate an output netlist suitable for ISE\n"); + log("\n"); log(" -nobram\n"); log(" disable inference of block rams\n"); log("\n"); @@ -78,6 +81,12 @@ struct SynthXilinxPass : public ScriptPass log(" -nowidelut\n"); log(" do not use MUXF[78] resources to implement LUTs larger than LUT6s\n"); log("\n"); + log(" -iopads\n"); + log(" perform I/O buffer insertion (selected automatically by -ise)\n"); + log("\n"); + log(" -noiopads\n"); + log(" disable I/O buffer insertion (only useful with -ise)\n"); + log("\n"); log(" -widemux <int>\n"); log(" enable inference of hard multiplexer resources (MUXF[78]) for muxes at or\n"); log(" above this number of inputs (minimum value 2, recommended value >= 5).\n"); @@ -104,7 +113,7 @@ struct SynthXilinxPass : public ScriptPass } std::string top_opt, edif_file, blif_file, family; - bool flatten, retime, vpr, nobram, nodram, nosrl, nocarry, nowidelut, abc9; + bool flatten, retime, vpr, ise, iopads, noiopads, nobram, nodram, nosrl, nocarry, nowidelut, abc9; int widemux; void clear_flags() YS_OVERRIDE @@ -116,6 +125,9 @@ struct SynthXilinxPass : public ScriptPass flatten = false; retime = false; vpr = false; + ise = false; + iopads = false; + noiopads = false; nocarry = false; nobram = false; nodram = false; @@ -178,6 +190,18 @@ struct SynthXilinxPass : public ScriptPass vpr = true; continue; } + if (args[argidx] == "-ise") { + ise = true; + continue; + } + if (args[argidx] == "-iopads") { + iopads = true; + continue; + } + if (args[argidx] == "-noiopads") { + noiopads = true; + continue; + } if (args[argidx] == "-nocarry") { nocarry = true; continue; @@ -410,6 +434,17 @@ struct SynthXilinxPass : public ScriptPass run("clean"); } + if (check_label("finalize")) { + bool do_iopads = iopads || (ise && !noiopads); + if (help_mode || do_iopads) + run("clkbufmap -buf BUFG O:I -inpad IBUFG O:I", "(-inpad passed if '-iopads' or '-ise' and not '-noiopads')"); + else + run("clkbufmap -buf BUFG O:I"); + + if (do_iopads) + run("iopadmap -bits -outpad OBUF I:O -inpad IBUF O:I A:top", "(only if '-iopads' or '-ise' and not '-noiopads')"); + } + if (check_label("check")) { run("hierarchy -check"); run("stat -tech xilinx"); |