NetBurner Community Forum

I think your HiResTimer is stepping on the stopwatch timer.
stopwatch looks qand sees timer 0 is unused so grabs that one....
Then

HiResTimer *hrt = HiResTimer::getHiResTimer(0); //<--Specifies Timer 0.....
Try:
HiResTimer *hrt = HiResTimer::getHiResTimer(DEFAULT_TIMER); //Should pick an unused ...

udef.h is not one of ours...

With the NANO you have a really nice hardware timer.
Manual calls it DMA timer....(4 of them)
You can clock the timer from the system CPU clock.
Then capture the PPS with the input compare.
You can use output compare to trigger an interrupt at the exact correct time.
If the output compare is set as ...

Which hardware platform?

Exactly which hardware are you running?
stopwatch.h
will make better than uSec measurements, alas any thing depending on I/O ethernet/serial etc...
the interrupt latency will vary more than a few uSec depending on network and serial port traffic.

If you really need uSec resolution you aren't going ...

Not that I know of, but should be fairly easy.
The Modm7 supports interrupts on all GPIO so one could interrupt on low clock the signal and bitbang an interface.

This has been fixed in our internal releases... *Latest public release June 22, this was fixed in internal GIT in early Aug.
submit a support ticket and get a patch... (You may have already done so as this was discussed as a support ticket in internal dev meeting today.)

I don't think signed image will work if you force a _APP.s19

Get datasheet from here...
https://www.netburner.com/products/syst ... on-module/

Just a note one of the very common wget's for windows has a 64K limit and will fail.
Use the exe we provide with our tools..