timestamping with CLOCK_REALTIME about pigpio HOT 4 CLOSED

Probably.

I use the following type of code

t1=0;
t2=10;
while ((t2-t1) > 2)
{
   t1 = gpioTick();
   c = time_time();
   t2 = gpioTick();
}

That will show the correspondence between Linux time and the system tick to within a couple of microseconds.

from pigpio.

I'll try. Thank you Joan2937!

Also I am thinking about to take advantange of the PPS signal reading it with pigpio lib in order to get the ticks from the start of each seconds.

Is pigpio compatible with gpio_pps kernel module? I mean it is safe to read PPS signal with pigpio without disturbing it?

Nacho

from pigpio.

Yes, you can use pigpio to monitor any GPIO, regardless of whether they have been set up as inputs or outputs. Note that the PPS signal will have to be 5 µs or greater in width to be seen at the default pigpio sampling rate of 5 µs.

from pigpio.

Hi,
Finally everything work as as expected and I concluded my project. A timestamping raspi used to get the picture time with precision below 5micros form UTC! I use for astrophoto of space junk. If you feel curiosity see https://github.com/nachoplus/cronoStamper The docs are on the way..

Thanks!

from pigpio.