My OlinuXino-A20-Lime2 in combination with my Pollin DCF1 module
seems to be producing intermittent state transitions on the GPIO
pins which throw off radioclkd2. This is not an issue with dcf77pi which
ignores these ghost transitions, perhaps because it's sampling the
device node instead of using edge-triggered interrupts.
The shortest recognized pulse in clock.c is 0.1s, so filtering out
transitions occurring less than 0.05s after the last transition should
be safe.
My OlinuXino-A20-Lime2 in combination with my Pollin DCF1 module seems to be producing intermittent state transitions on the GPIO pins which throw off radioclkd2. This is not an issue with dcf77pi which ignores these ghost transitions, perhaps because it's sampling the device node instead of using edge-triggered interrupts.
The shortest recognized pulse in clock.c is 0.1s, so filtering out transitions occurring less than 0.05s after the last transition should be safe.