Initialization structure.

#include <em_pcnt.h>

Data Fields
PCNT_Mode_TypeDef	mode
	Mode to operate in.

uint32_t	counter
	Initial counter value (refer to reference manual for max value allowed).

uint32_t	top
	Initial top value (refer to reference manual for max value allowed).

bool	negEdge
	Polarity of incoming edge.

bool	countDown
	Counting direction, only applicable for pcntModeOvsSingle and pcntModeExtSingle modes.

bool	filter
	Enable filter, only available in pcntModeOvsSingle * mode.

bool	hyst
	Set to true to enable hysteresis.

bool	s1CntDir
	Set to true to enable S1 to determine the direction of counting in OVSSINGLE or EXTCLKSINGLE modes.

PCNT_CntEvent_TypeDef	cntEvent
	Selects whether the regular counter responds to up-count events, down-count events, both, or none.

PCNT_CntEvent_TypeDef	auxCntEvent
	Selects whether the auxiliary counter responds to up-count events, down-count events, both, or none.

PCNT_PRSSel_TypeDef	s0PRS
	Select PRS channel as input to S0IN in PCNTx_INPUT register.

PCNT_PRSSel_TypeDef	s1PRS
	Select PRS channel as input to S1IN in PCNTx_INPUT register.

Initialization structure.

Field Documentation

◆ mode

PCNT_Mode_TypeDef PCNT_Init_TypeDef::mode

Mode to operate in.

◆ counter

uint32_t PCNT_Init_TypeDef::counter

Initial counter value (refer to reference manual for max value allowed).

Only used for pcntModeOvsSingle (and possibly pcntModeDisable ) modes. If using pcntModeExtSingle or pcntModeExtQuad modes, counter value is reset to HW reset value.

◆ top

uint32_t PCNT_Init_TypeDef::top

Initial top value (refer to reference manual for max value allowed).

Only used for pcntModeOvsSingle (and possibly pcntModeDisable ) modes. If using pcntModeExtSingle or pcntModeExtQuad modes, top value is reset to HW reset value.

◆ negEdge

bool PCNT_Init_TypeDef::negEdge

Polarity of incoming edge.

pcntModeExtSingle mode - if false, positive edges are counted, otherwise negative edges.
pcntModeExtQuad mode - if true, counting direction is inverted.

◆ countDown

bool PCNT_Init_TypeDef::countDown

Counting direction, only applicable for pcntModeOvsSingle and pcntModeExtSingle modes.

◆ filter

bool PCNT_Init_TypeDef::filter

Enable filter, only available in pcntModeOvsSingle * mode.

◆ hyst

bool PCNT_Init_TypeDef::hyst

Set to true to enable hysteresis.

When enabled, PCNT will always overflow and underflow to TOP/2.

◆ s1CntDir

bool PCNT_Init_TypeDef::s1CntDir

Set to true to enable S1 to determine the direction of counting in OVSSINGLE or EXTCLKSINGLE modes.

When S1 is high, the count direction is given by CNTDIR, and when S1 is low, the count direction is the opposite.

◆ cntEvent

PCNT_CntEvent_TypeDef PCNT_Init_TypeDef::cntEvent

Selects whether the regular counter responds to up-count events, down-count events, both, or none.

◆ auxCntEvent

PCNT_CntEvent_TypeDef PCNT_Init_TypeDef::auxCntEvent

Selects whether the auxiliary counter responds to up-count events, down-count events, both, or none.

◆ s0PRS

PCNT_PRSSel_TypeDef PCNT_Init_TypeDef::s0PRS

Select PRS channel as input to S0IN in PCNTx_INPUT register.

◆ s1PRS

PCNT_PRSSel_TypeDef PCNT_Init_TypeDef::s1PRS

Select PRS channel as input to S1IN in PCNTx_INPUT register.

PCNT_Init_TypeDef Struct Reference PCNT - Pulse Counter

Data Fields