Struct lpc845_pac::capt::poll_tcnt::TCHLOW_ER_W [−][src]
pub struct TCHLOW_ER_W<'a> { /* fields omitted */ }
Expand description
Field TCHLOW_ER
writer - If 1, then the touch/no-touch boundary of TCNT is reversed. In a floating system (most common), the no-touch case triggers at a lower count vs. touch; this is due to touch drawing off charge. In a grounded system, the reverse is true and the touch adds to the charge and so touch is a lower count. In a system which can switch between grounded and non-grounded, the SW will check for all of the Xs looking like they have been touched and reverse the setting of this bit. This should only be changed between polls.