Timing
The TIME HAT (NEO-F10T) supports precise timing features: time mark events and time base mode.
NoteHAT Compatibility — Timing configuration is available only on the L1/L5 TIME HAT (NEO-F10T).
| Field | C++ Type | Description |
|---|---|---|
enableTimeMark | bool | Enable UBX-TIM-TM2 time mark events on EXTINT (GPIO 17) |
timeBase | optional<BaseConfig> | Optional time base mode for improved time accuracy |
When enableTimeMark = true, the receiver timestamps rising and falling edges on the EXTINT pin (GPIO 17) with nanosecond accuracy. See Time Mark Feature for runtime usage.
Time base mode improves time accuracy by entering a TimeOnlyFix. The receiver first determines (or is given) a precise position, then focuses entirely on the time solution.
Uses the same BaseConfig as RTK — supports Survey-In or Fixed Position (ECEF / LLA). See RTK Config — Base Configuration for field details.
config.timing = TimingConfig {
.enableTimeMark = true,
.timeBase = std::nullopt
};
config.timing = TimingConfig {
.enableTimeMark = false,
.timeBase = BaseConfig {
.mode = BaseConfig::SurveyIn {
.minimumObservationTime_s = 120,
.requiredPositionAccuracy_m = 50.0
}
}
};
config['timing'] = {
'enable_time_mark': True,
'time_base': {
'base_mode': gnsshat.BaseMode.SURVEY_IN,
'survey_in': {
'minimum_observation_time_s': 120,
'required_position_accuracy_m': 50.0
}
}
}
config['timing'] = {
'enable_time_mark': True,
'time_base': None
}