log(" synth_greenpak4 [options]\n");
log("\n");
log("This command runs synthesis for GreenPAK4 FPGAs. This work is experimental.\n");
+ log("It is intended to be used with https://github.com/azonenberg/openfpga as the\n");
+ log("place-and-route.\n");
log("\n");
log(" -top <module>\n");
log(" use the specified module as top module (default='top')\n");
if (check_label("fine"))
{
- run("greenpak4_counters");
+ run("extract_counter -pout GP_DCMP,GP_DAC -maxwidth 14");
run("clean");
run("opt -fast -mux_undef -undriven -fine");
run("memory_map");
run("opt -undriven -fine");
run("techmap");
+ run("techmap -map +/greenpak4/cells_latch.v");
run("dfflibmap -prepare -liberty +/greenpak4/gp_dff.lib");
run("opt -fast");
if (retime || help_mode)
run("dffinit -ff GP_DFFS Q INIT");
run("dffinit -ff GP_DFFSR Q INIT");
run("iopadmap -bits -inpad GP_IBUF OUT:IN -outpad GP_OBUF IN:OUT -inoutpad GP_OBUF OUT:IN -toutpad GP_OBUFT OE:IN:OUT -tinoutpad GP_IOBUF OE:OUT:IN:IO");
+ run("attrmvcp -attr src -attr LOC t:GP_OBUF t:GP_OBUFT t:GP_IOBUF n:*");
+ run("attrmvcp -attr src -attr LOC -driven t:GP_IBUF n:*");
run("techmap -map +/greenpak4/cells_map.v");
+ run("greenpak4_dffinv");
run("clean");
}
if (check_label("json"))
{
- run("splitnets;;", "(temporary workaround for gp4par parser limitation)");
if (!json_file.empty() || help_mode)
run(stringf("write_json %s", help_mode ? "<file-name>" : json_file.c_str()));
}
-
- log_pop();
}
} SynthGreenPAK4Pass;