Enable the watchdog:
$
sudo strato watchdog enable
Disable the watchdog:
$
sudo strato watchdog disable
Send the heartbeat:
$
sudo strato watchdog heartbeat
Print “1” if the watchdog timeout is expired, “0” if not:
$
sudo strato watchdog timeout; echo $?
Power cycle
You can start a delayed power cycle by rising Raspberry Pi’s GPIO16 pin.
When GPIO16 is set to high, Strato Pi Base will wait 60 seconds and then power off the Pi
board for 5 seconds.
The power cycle also affects the VSOUT auxiliary power supply output.
To initiate a delayed power off cycle:
$
sudo strato shutdown
Advanced configuration
The Strato Pi Base logic controller can be configured from the Raspberry Pi to change the
default behavior and timing of the hardware watchdog. The RX/TX switching mode (TX-
Enable control) of the RS-485 serial port is also configurable.
These configuration parameters can be accessed using the Strato Pi kernel module or
implementing the underlying ASCII-based serial protocol described in the "Strato Pi Logic
Controller Advanced Configuration Guide" document.
23
Strato Pi Base User Guide
