@@ -61,14 +61,22 @@ typically involves the following sequence of commands::
# setup any connections and threads
device.initialise()
# reconfigure the hardware to reach a known state
device.set_defaults()
# turn on the device
device.on()
Of course, the device could go into ``FAULT`` again, even during the ``initialise()`` command, for example because the hardware it manages is unreachable. To debug the fault condition, check the :doc:`../interfaces/logs` of the device in question.
Initialise hardware
````````````````````
Most devices provide the following commands, in order to configure the hardware with base settings:
:set_defaults(): Upload default attribute settings from the TangoDB to the hardware.
:initialise_hardware(): For devices that control hardware, this command runs the hardware initialisation procedure.
Typically, ``set_defaults()`` and ``initialise_hardware()`` are called in that order in the ``STANDBY`` state. The :ref:`boot` device runs these commands as part of its station initialsation sequence.
