Timepulse Interrupt

Synchronize your application to the PPS signal from the GNSS module.

Source: examples/CPP/TimepulseInterrupt/, examples/C/TimepulseInterrupt/, examples/Python/timepulse_interrupt.py

Code

C++

hat->enableTimepulse();
while (true)
{
    hat->timepulse();  // blocks until next PPS
    auto nav = hat->navigation();
    printf("PPS: %s\n",
        Utils::utcTimeFromGnss_ISO8601(nav.pvt).c_str());
}
hat->disableTimepulse();

Python

hat.enable_timepulse()
while True:
    hat.timepulse()  # blocks until next PPS
    nav = hat.get_navigation()
    print(f"PPS: {gnsshat.utc_time_iso8601(nav)}")
hat.disable_timepulse()

Running

python3 examples/Python/timepulse_interrupt.py

Note

Do not use this example simultaneously with kernel PPS (/dev/pps0) — both claim GPIO 5.