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Add parameter COM_PREARM_LOCK to lock actuators when prearmed #12713

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This parameter is meant to prevent any actuator motion when prearmed.

When the system is prearmed (i.e. the safety button is pressed, or the
safety button is disabled with CBRK_IO_SAFETY), non-throttle outputs
are active.
This is visible on platforms where servomotors control flight, like
the flaps on a fixed wing or the yaw servo on a tri-copter. If actuator
motion before arming is undesirable, set this parameter.

fixes #12457

This parameter is meant to prevent any actuator motion when prearmed.

When the system is prearmed (i.e. the safety button is pressed, or the
safety button is disabled with CBRK_IO_SAFETY), non-throttle outputs
are active.
This is visible on platforms where servomotors control flight, like
the flaps on a fixed wing or the yaw servo on a tri-copter. If actuator
motion before arming is undesirable, set this parameter.

Commander: do actuator lockdown when COM_PREARM_LOCK is set
@jlecoeur jlecoeur force-pushed the pr-cbrk_prearm_lock branch from d63df82 to d99d60f Compare August 19, 2019 08:39
@jlecoeur jlecoeur changed the title Add parameter CBRK_PREARM_LCK to lock actuators when prearmed Add parameter COM_PREARM_LOCK to lock actuators when prearmed Aug 19, 2019
@jlecoeur
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closing in favor of #12806

@julianoes julianoes deleted the pr-cbrk_prearm_lock branch August 26, 2019 10:02
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Add option to force disarmed values when CBRK_IO_SAFETY is set
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