Detecting presence of watchdog jumper

aharrah · Post by **aharrah** » 16 Dec 2019, 19:17

Is there a programmatic way to query the RevPi to determine if the watchdog jumper is present?

Post by **dirk** » 18 Dec 2019, 15:06

Hi aharrah, just have a look at the schematics. I see a WD_IN signal that connects to GPIO42.

aharrah · Post by **aharrah** » 19 Dec 2019, 20:59

GPIO42/WD_IN is the watchdog chip's input, which I'm toggling periodically.

I am looking for a way to determine if the watchdog jumper is present on the X4 connector. From the schematic I believe this line, after conditioning, is labeled "WD_EN (from Pin3 X4 connector)."

Thanks,
Andy

Post by **dirk** » 15 Jan 2020, 13:14

Hi Andy, it is not possible to read out if the watchdog is enabled or bridged.