diff options
Diffstat (limited to 'host/lib/usrp/mboard_eeprom.cpp')
| -rw-r--r-- | host/lib/usrp/mboard_eeprom.cpp | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/host/lib/usrp/mboard_eeprom.cpp b/host/lib/usrp/mboard_eeprom.cpp index 869a38478..03096691e 100644 --- a/host/lib/usrp/mboard_eeprom.cpp +++ b/host/lib/usrp/mboard_eeprom.cpp @@ -223,6 +223,7 @@ struct e100_eeprom_map{ unsigned char env_setting[64]; unsigned char serial[10]; unsigned char name[NAME_MAX_LEN]; + float master_clock_rate; }; template <typename T> static const byte_vector_t to_bytes(const T &item){ @@ -254,6 +255,19 @@ static void load_e100(mboard_eeprom_t &mb_eeprom, i2c_iface &iface){ load_e100_string_xx(env_setting); load_e100_string_xx(serial); load_e100_string_xx(name); + + //extract the master clock rate + float master_clock_rate = 0; + const byte_vector_t rate_bytes = iface.read_eeprom( + E100_EEPROM_ADDR, offsetof(e100_eeprom_map, master_clock_rate), sizeof(master_clock_rate) + ); + std::copy( + rate_bytes.begin(), rate_bytes.end(), //source + reinterpret_cast<boost::uint8_t *>(&master_clock_rate) //destination + ); + if (master_clock_rate > 1e6 and master_clock_rate < 1e9){ + mb_eeprom["master_clock_rate"] = boost::lexical_cast<std::string>(master_clock_rate); + } } static void store_e100(const mboard_eeprom_t &mb_eeprom, i2c_iface &iface){ @@ -289,6 +303,17 @@ static void store_e100(const mboard_eeprom_t &mb_eeprom, i2c_iface &iface){ store_e100_string_xx(serial); store_e100_string_xx(name); + //store the master clock rate + if (mb_eeprom.has_key("master_clock_rate")){ + const float master_clock_rate = float(boost::lexical_cast<double>(mb_eeprom["master_clock_rate"])); + const byte_vector_t rate_bytes( + reinterpret_cast<const boost::uint8_t *>(&master_clock_rate), + reinterpret_cast<const boost::uint8_t *>(&master_clock_rate) + sizeof(master_clock_rate) + ); + iface.write_eeprom( + E100_EEPROM_ADDR, offsetof(e100_eeprom_map, master_clock_rate), rate_bytes + ); + } } /*********************************************************************** |