diff options
| -rw-r--r-- | ecp5/lpf.cc | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/ecp5/lpf.cc b/ecp5/lpf.cc index 4bde660e..df3687cf 100644 --- a/ecp5/lpf.cc +++ b/ecp5/lpf.cc @@ -60,8 +60,31 @@ bool Arch::applyLPF(std::string filename, std::istream &in) words.push_back(tmp); if (words.size() >= 0) { std::string verb = words.at(0); - if (verb == "BLOCK" || verb == "SYSCONFIG" || verb == "FREQUENCY") { + if (verb == "BLOCK" || verb == "SYSCONFIG") { log_warning(" ignoring unsupported LPF command '%s'\n", command.c_str()); + } else if (verb == "FREQUENCY") { + std::string etype = words.at(1); + if (etype == "PORT" || etype == "NET") { + std::string target = words.at(2); + if (target.at(0) == '\"') { + NPNR_ASSERT(target.back() == '\"'); + target = target.substr(1, target.length() - 2); + } + float freq = std::stof(words.at(3)); + std::string unit = words.at(4); + if (unit == "MHz") + ; + else if (unit == "kHz") + freq /= 1.0e3; + else if (unit == "Hz") + freq /= 1.0e6; + else + log_error("unsupported frequency unit '%s'\n", unit.c_str()); + addClock(id(target), freq); + } else { + log_warning(" ignoring unsupported LPF command '%s %s'\n", command.c_str(), + etype.c_str()); + } } else if (verb == "LOCATE") { NPNR_ASSERT(words.at(1) == "COMP"); std::string cell = strip_quotes(words.at(2)); |