Acmp

Data Structures
struct	_acmp_config
	Configuration for ACMP. More...
struct	_acmp_channel_config
	Configuration for channel. More...
struct	_acmp_filter_config
	Configuration for filter. More...
struct	_acmp_dac_config
	Configuration for DAC. More...
struct	_acmp_round_robin_config
	Configuration for round robin mode. More...
struct	_acmp_discrete_mode_config
	Configuration for discrete mode. More...

Variables
acmp_offset_mode_t	_acmp_config::offsetMode
acmp_hysteresis_mode_t	_acmp_config::hysteresisMode
bool	_acmp_config::enableHighSpeed
bool	_acmp_config::enableInvertOutput
bool	_acmp_config::useUnfilteredOutput
bool	_acmp_config::enablePinOut
acmp_port_input_t	_acmp_channel_config::positivePortInput
uint32_t	_acmp_channel_config::plusMuxInput
acmp_port_input_t	_acmp_channel_config::negativePortInput
uint32_t	_acmp_channel_config::minusMuxInput
bool	_acmp_filter_config::enableSample
uint32_t	_acmp_filter_config::filterCount
uint32_t	_acmp_filter_config::filterPeriod
acmp_reference_voltage_source_t	_acmp_dac_config::referenceVoltageSource
uint32_t	_acmp_dac_config::DACValue
bool	_acmp_dac_config::enableOutput
acmp_dac_work_mode_t	_acmp_dac_config::workMode
acmp_fixed_port_t	_acmp_round_robin_config::fixedPort
uint32_t	_acmp_round_robin_config::fixedChannelNumber
uint32_t	_acmp_round_robin_config::checkerChannelMask
uint32_t	_acmp_round_robin_config::sampleClockCount
uint32_t	_acmp_round_robin_config::delayModulus
bool	_acmp_discrete_mode_config::enablePositiveChannelDiscreteMode
bool	_acmp_discrete_mode_config::enableNegativeChannelDiscreteMode
bool	_acmp_discrete_mode_config::enableResistorDivider
acmp_discrete_clock_source_t	_acmp_discrete_mode_config::clockSource
acmp_discrete_sample_time_t	_acmp_discrete_mode_config::sampleTime
acmp_discrete_phase_time_t	_acmp_discrete_mode_config::phase1Time
acmp_discrete_phase_time_t	_acmp_discrete_mode_config::phase2Time

Driver version
enum	_acmp_interrupt_enable { kACMP_OutputRisingInterruptEnable = (1U << 0U) , kACMP_OutputFallingInterruptEnable = (1U << 1U) , kACMP_RoundRobinInterruptEnable = (1U << 2U) }
	Interrupt enable/disable mask. More...
enum	_acmp_status_flags { kACMP_OutputRisingEventFlag = CMP_C0_CFR_MASK , kACMP_OutputFallingEventFlag = CMP_C0_CFF_MASK , kACMP_OutputAssertEventFlag = CMP_C0_COUT_MASK }
	Status flag mask. More...
enum	_acmp_offset_mode { kACMP_OffsetLevel0 = 0U , kACMP_OffsetLevel1 = 1U }
	Comparator hard block offset control. More...
enum	_acmp_hysteresis_mode { kACMP_HysteresisLevel0 = 0U , kACMP_HysteresisLevel1 = 1U , kACMP_HysteresisLevel2 = 2U , kACMP_HysteresisLevel3 = 3U }
	Comparator hard block hysteresis control. More...
enum	_acmp_reference_voltage_source { kACMP_VrefSourceVin1 = 0U , kACMP_VrefSourceVin2 = 1U }
	CMP Voltage Reference source. More...
enum	_acmp_port_input { kACMP_PortInputFromDAC = 0U , kACMP_PortInputFromMux = 1U }
	Port input source. More...
enum	_acmp_fixed_port { kACMP_FixedPlusPort = 0U , kACMP_FixedMinusPort = 1U }
	Fixed mux port. More...
enum	_acmp_dac_work_mode { kACMP_DACWorkLowSpeedMode = 0U , kACMP_DACWorkHighSpeedMode = 1U }
	Internal DAC's work mode. More...
enum	_acmp_discrete_clock_source { kACMP_DiscreteClockSlow = 0U , kACMP_DiscreteClockFast = 1U }
	Discrete mode clock selection. More...
enum	_acmp_discrete_sample_time {   kACMP_DiscreteSampleTimeAs1T = 0U , kACMP_DiscreteSampleTimeAs2T = 1U , kACMP_DiscreteSampleTimeAs4T = 2U , kACMP_DiscreteSampleTimeAs8T = 3U ,   kACMP_DiscreteSampleTimeAs16T = 4U , kACMP_DiscreteSampleTimeAs32T = 5U , kACMP_DiscreteSampleTimeAs64T = 6U , kACMP_DiscreteSampleTimeAs256T = 7U }
	ACMP discrete sample selection. These values configures the analog comparator sampling timing (speicified by the discrete mode clock period T which is selected by acmp_discrete_clock_source_t) in discrete mode. More...
enum	_acmp_discrete_phase_time {   kACMP_DiscretePhaseTimeAlt0 = 0U , kACMP_DiscretePhaseTimeAlt1 = 1U , kACMP_DiscretePhaseTimeAlt2 = 2U , kACMP_DiscretePhaseTimeAlt3 = 3U ,   kACMP_DiscretePhaseTimeAlt4 = 4U , kACMP_DiscretePhaseTimeAlt5 = 5U , kACMP_DiscretePhaseTimeAlt6 = 6U , kACMP_DiscretePhaseTimeAlt7 = 7U }
	ACMP discrete phase time selection. There are two phases for sampling input signals, phase 1 and phase 2. More...
typedef enum _acmp_offset_mode	acmp_offset_mode_t
	Comparator hard block offset control.
typedef enum _acmp_hysteresis_mode	acmp_hysteresis_mode_t
	Comparator hard block hysteresis control.
typedef enum _acmp_reference_voltage_source	acmp_reference_voltage_source_t
	CMP Voltage Reference source.
typedef enum _acmp_port_input	acmp_port_input_t
	Port input source.
typedef enum _acmp_fixed_port	acmp_fixed_port_t
	Fixed mux port.
typedef enum _acmp_dac_work_mode	acmp_dac_work_mode_t
	Internal DAC's work mode.
typedef struct _acmp_config	acmp_config_t
	Configuration for ACMP.
typedef struct _acmp_channel_config	acmp_channel_config_t
	Configuration for channel.
typedef struct _acmp_filter_config	acmp_filter_config_t
	Configuration for filter.
typedef struct _acmp_dac_config	acmp_dac_config_t
	Configuration for DAC.
typedef struct _acmp_round_robin_config	acmp_round_robin_config_t
	Configuration for round robin mode.
typedef enum _acmp_discrete_clock_source	acmp_discrete_clock_source_t
	Discrete mode clock selection.
typedef enum _acmp_discrete_sample_time	acmp_discrete_sample_time_t
	ACMP discrete sample selection. These values configures the analog comparator sampling timing (speicified by the discrete mode clock period T which is selected by acmp_discrete_clock_source_t) in discrete mode.
typedef enum _acmp_discrete_phase_time	acmp_discrete_phase_time_t
	ACMP discrete phase time selection. There are two phases for sampling input signals, phase 1 and phase 2.
typedef struct _acmp_discrete_mode_config	acmp_discrete_mode_config_t
	Configuration for discrete mode.

Initialization and deinitialization
void	ACMP_Init (CMP_Type *base, const acmp_config_t *config)
	Initializes the ACMP.
void	ACMP_Deinit (CMP_Type *base)
	Deinitializes the ACMP.
void	ACMP_GetDefaultConfig (acmp_config_t *config)
	Gets the default configuration for ACMP.

Basic Operations
void	ACMP_Enable (CMP_Type *base, bool enable)
	Enables or disables the ACMP.
void	ACMP_EnableLinkToDAC (CMP_Type *base, bool enable)
	Enables the link from CMP to DAC enable.
void	ACMP_SetChannelConfig (CMP_Type *base, const acmp_channel_config_t *config)
	Sets the channel configuration.

Advanced Operations
void	ACMP_EnableDMA (CMP_Type *base, bool enable)
	Enables or disables DMA.
void	ACMP_EnableWindowMode (CMP_Type *base, bool enable)
	Enables or disables window mode.
void	ACMP_SetFilterConfig (CMP_Type *base, const acmp_filter_config_t *config)
	Configures the filter.
void	ACMP_SetDACConfig (CMP_Type *base, const acmp_dac_config_t *config)
	Configures the internal DAC.
void	ACMP_SetRoundRobinConfig (CMP_Type *base, const acmp_round_robin_config_t *config)
	Configures the round robin mode.
void	ACMP_SetRoundRobinPreState (CMP_Type *base, uint32_t mask)
	Defines the pre-set state of channels in round robin mode.
static uint32_t	ACMP_GetRoundRobinStatusFlags (CMP_Type *base)
	Gets the channel input changed flags in round robin mode.
void	ACMP_ClearRoundRobinStatusFlags (CMP_Type *base, uint32_t mask)
	Clears the channel input changed flags in round robin mode.
static uint32_t	ACMP_GetRoundRobinResult (CMP_Type *base)
	Gets the round robin result.

Interrupts
void	ACMP_EnableInterrupts (CMP_Type *base, uint32_t mask)
	Enables interrupts.
void	ACMP_DisableInterrupts (CMP_Type *base, uint32_t mask)
	Disables interrupts.

Status
uint32_t	ACMP_GetStatusFlags (CMP_Type *base)
	Gets status flags.
void	ACMP_ClearStatusFlags (CMP_Type *base, uint32_t mask)
	Clears status flags.

Discrete mode
void	ACMP_SetDiscreteModeConfig (CMP_Type *base, const acmp_discrete_mode_config_t *config)
	Configure the discrete mode.
void	ACMP_GetDefaultDiscreteModeConfig (acmp_discrete_mode_config_t *config)
	Get the default configuration for discrete mode setting.

Detailed Description

Typedef Documentation

acmp_channel_config_t

typedef struct _acmp_channel_config acmp_channel_config_t

Configuration for channel.

The comparator's port can be input from channel mux or DAC. If port input is from channel mux, detailed channel number for the mux should be configured.

acmp_config_t

typedef struct _acmp_config acmp_config_t

Configuration for ACMP.

acmp_dac_config_t

typedef struct _acmp_dac_config acmp_dac_config_t

Configuration for DAC.

acmp_dac_work_mode_t

typedef enum _acmp_dac_work_mode acmp_dac_work_mode_t

Internal DAC's work mode.

acmp_discrete_clock_source_t

typedef enum _acmp_discrete_clock_source acmp_discrete_clock_source_t

Discrete mode clock selection.

acmp_discrete_mode_config_t

typedef struct _acmp_discrete_mode_config acmp_discrete_mode_config_t

Configuration for discrete mode.

acmp_discrete_phase_time_t

typedef enum _acmp_discrete_phase_time acmp_discrete_phase_time_t

ACMP discrete phase time selection. There are two phases for sampling input signals, phase 1 and phase 2.

acmp_discrete_sample_time_t

typedef enum _acmp_discrete_sample_time acmp_discrete_sample_time_t

ACMP discrete sample selection. These values configures the analog comparator sampling timing (speicified by the discrete mode clock period T which is selected by acmp_discrete_clock_source_t) in discrete mode.

acmp_filter_config_t

typedef struct _acmp_filter_config acmp_filter_config_t

Configuration for filter.

acmp_fixed_port_t

typedef enum _acmp_fixed_port acmp_fixed_port_t

Fixed mux port.

acmp_hysteresis_mode_t

typedef enum _acmp_hysteresis_mode acmp_hysteresis_mode_t

Comparator hard block hysteresis control.

See chip data sheet to get the actual hysteresis value with each level.

acmp_offset_mode_t

typedef enum _acmp_offset_mode acmp_offset_mode_t

Comparator hard block offset control.

If OFFSET level is 1, then there is no hysteresis in the case of positive port input crossing negative port input in the positive direction (or negative port input crossing positive port input in the negative direction). Hysteresis still exists for positive port input crossing negative port input in the falling direction. If OFFSET level is 0, then the hysteresis selected by acmp_hysteresis_mode_t is valid for both directions.

acmp_port_input_t

typedef enum _acmp_port_input acmp_port_input_t

Port input source.

acmp_reference_voltage_source_t

typedef enum _acmp_reference_voltage_source acmp_reference_voltage_source_t

CMP Voltage Reference source.

acmp_round_robin_config_t

typedef struct _acmp_round_robin_config acmp_round_robin_config_t

Configuration for round robin mode.

Enumeration Type Documentation

_acmp_dac_work_mode

enum _acmp_dac_work_mode

Internal DAC's work mode.

Enumerator
kACMP_DACWorkLowSpeedMode	DAC is selected to work in low speed and low power mode.
kACMP_DACWorkHighSpeedMode	DAC is selected to work in high speed high power mode.

Definition at line 104 of file fsl_acmp.h.

{
    kACMP_DACWorkLowSpeedMode = 0U,  /*!< DAC is selected to work in low speed and low power mode. */
    kACMP_DACWorkHighSpeedMode = 1U, /*!< DAC is selected to work in high speed high power mode. */
} acmp_dac_work_mode_t;

_acmp_discrete_clock_source

enum _acmp_discrete_clock_source

Discrete mode clock selection.

Enumerator
kACMP_DiscreteClockSlow	Slow clock (32kHz) is used as the discrete mode clock.
kACMP_DiscreteClockFast	Fast clock (16-20MHz) is used as the discrete mode clock.

Definition at line 179 of file fsl_acmp.h.

{
    kACMP_DiscreteClockSlow = 0U, /*!< Slow clock (32kHz) is used as the discrete mode clock. */
    kACMP_DiscreteClockFast = 1U, /*!< Fast clock (16-20MHz) is used as the discrete mode clock. */
} acmp_discrete_clock_source_t;

_acmp_discrete_phase_time

enum _acmp_discrete_phase_time

ACMP discrete phase time selection. There are two phases for sampling input signals, phase 1 and phase 2.

Enumerator
kACMP_DiscretePhaseTimeAlt0	The phase x active in one sampling selection 0.
kACMP_DiscretePhaseTimeAlt1	The phase x active in one sampling selection 1.
kACMP_DiscretePhaseTimeAlt2	The phase x active in one sampling selection 2.
kACMP_DiscretePhaseTimeAlt3	The phase x active in one sampling selection 3.
kACMP_DiscretePhaseTimeAlt4	The phase x active in one sampling selection 4.
kACMP_DiscretePhaseTimeAlt5	The phase x active in one sampling selection 5.
kACMP_DiscretePhaseTimeAlt6	The phase x active in one sampling selection 6.
kACMP_DiscretePhaseTimeAlt7	The phase x active in one sampling selection 7.

Definition at line 206 of file fsl_acmp.h.

{
    kACMP_DiscretePhaseTimeAlt0 = 0U, /*!< The phase x active in one sampling selection 0. */
    kACMP_DiscretePhaseTimeAlt1 = 1U, /*!< The phase x active in one sampling selection 1. */
    kACMP_DiscretePhaseTimeAlt2 = 2U, /*!< The phase x active in one sampling selection 2. */
    kACMP_DiscretePhaseTimeAlt3 = 3U, /*!< The phase x active in one sampling selection 3. */
    kACMP_DiscretePhaseTimeAlt4 = 4U, /*!< The phase x active in one sampling selection 4. */
    kACMP_DiscretePhaseTimeAlt5 = 5U, /*!< The phase x active in one sampling selection 5. */
    kACMP_DiscretePhaseTimeAlt6 = 6U, /*!< The phase x active in one sampling selection 6. */
    kACMP_DiscretePhaseTimeAlt7 = 7U, /*!< The phase x active in one sampling selection 7. */
} acmp_discrete_phase_time_t;

_acmp_discrete_sample_time

enum _acmp_discrete_sample_time

ACMP discrete sample selection. These values configures the analog comparator sampling timing (speicified by the discrete mode clock period T which is selected by acmp_discrete_clock_source_t) in discrete mode.

Enumerator
kACMP_DiscreteSampleTimeAs1T	The sampling time equals to 1xT.
kACMP_DiscreteSampleTimeAs2T	The sampling time equals to 2xT.
kACMP_DiscreteSampleTimeAs4T	The sampling time equals to 4xT.
kACMP_DiscreteSampleTimeAs8T	The sampling time equals to 8xT.
kACMP_DiscreteSampleTimeAs16T	The sampling time equals to 16xT.
kACMP_DiscreteSampleTimeAs32T	The sampling time equals to 32xT.
kACMP_DiscreteSampleTimeAs64T	The sampling time equals to 64xT.
kACMP_DiscreteSampleTimeAs256T	The sampling time equals to 256xT.

Definition at line 190 of file fsl_acmp.h.

{
    kACMP_DiscreteSampleTimeAs1T = 0U,   /*!< The sampling time equals to 1xT. */
    kACMP_DiscreteSampleTimeAs2T = 1U,   /*!< The sampling time equals to 2xT. */
    kACMP_DiscreteSampleTimeAs4T = 2U,   /*!< The sampling time equals to 4xT. */
    kACMP_DiscreteSampleTimeAs8T = 3U,   /*!< The sampling time equals to 8xT. */
    kACMP_DiscreteSampleTimeAs16T = 4U,  /*!< The sampling time equals to 16xT. */
    kACMP_DiscreteSampleTimeAs32T = 5U,  /*!< The sampling time equals to 32xT. */
    kACMP_DiscreteSampleTimeAs64T = 6U,  /*!< The sampling time equals to 64xT. */
    kACMP_DiscreteSampleTimeAs256T = 7U, /*!< The sampling time equals to 256xT. */
} acmp_discrete_sample_time_t;

_acmp_fixed_port

enum _acmp_fixed_port

Fixed mux port.

Enumerator
kACMP_FixedPlusPort	Only the inputs to the Minus port are swept in each round.
kACMP_FixedMinusPort	Only the inputs to the Plus port are swept in each round.

Definition at line 96 of file fsl_acmp.h.

{
    kACMP_FixedPlusPort = 0U,  /*!< Only the inputs to the Minus port are swept in each round. */
    kACMP_FixedMinusPort = 1U, /*!< Only the inputs to the Plus port are swept in each round. */
} acmp_fixed_port_t;

_acmp_hysteresis_mode

enum _acmp_hysteresis_mode

Comparator hard block hysteresis control.

See chip data sheet to get the actual hysteresis value with each level.

Enumerator
kACMP_HysteresisLevel0	Offset is level 0 and Hysteresis is level 0.
kACMP_HysteresisLevel1	Offset is level 0 and Hysteresis is level 1.
kACMP_HysteresisLevel2	Offset is level 0 and Hysteresis is level 2.
kACMP_HysteresisLevel3	Offset is level 0 and Hysteresis is level 3.

Definition at line 71 of file fsl_acmp.h.

{
    kACMP_HysteresisLevel0 = 0U, /*!< Offset is level 0 and Hysteresis is level 0. */
    kACMP_HysteresisLevel1 = 1U, /*!< Offset is level 0 and Hysteresis is level 1. */
    kACMP_HysteresisLevel2 = 2U, /*!< Offset is level 0 and Hysteresis is level 2. */
    kACMP_HysteresisLevel3 = 3U, /*!< Offset is level 0 and Hysteresis is level 3. */
} acmp_hysteresis_mode_t;

_acmp_interrupt_enable

enum _acmp_interrupt_enable

Interrupt enable/disable mask.

Enumerator
kACMP_OutputRisingInterruptEnable	Enable the interrupt when comparator outputs rising.
kACMP_OutputFallingInterruptEnable	Enable the interrupt when comparator outputs falling.
kACMP_RoundRobinInterruptEnable	Enable the Round-Robin interrupt.

Definition at line 35 of file fsl_acmp.h.

{
    kACMP_OutputRisingInterruptEnable = (1U << 0U),  /*!< Enable the interrupt when comparator outputs rising. */
    kACMP_OutputFallingInterruptEnable = (1U << 1U), /*!< Enable the interrupt when comparator outputs falling. */
    kACMP_RoundRobinInterruptEnable = (1U << 2U),    /*!< Enable the Round-Robin interrupt. */
};

_acmp_offset_mode

enum _acmp_offset_mode

Comparator hard block offset control.

If OFFSET level is 1, then there is no hysteresis in the case of positive port input crossing negative port input in the positive direction (or negative port input crossing positive port input in the negative direction). Hysteresis still exists for positive port input crossing negative port input in the falling direction. If OFFSET level is 0, then the hysteresis selected by acmp_hysteresis_mode_t is valid for both directions.

Enumerator
kACMP_OffsetLevel0	The comparator hard block output has level 0 offset internally.
kACMP_OffsetLevel1	The comparator hard block output has level 1 offset internally.

Definition at line 59 of file fsl_acmp.h.

{
    kACMP_OffsetLevel0 = 0U, /*!< The comparator hard block output has level 0 offset internally. */
    kACMP_OffsetLevel1 = 1U, /*!< The comparator hard block output has level 1 offset internally. */
} acmp_offset_mode_t;

_acmp_port_input

enum _acmp_port_input

Port input source.

Enumerator
kACMP_PortInputFromDAC	Port input from the 8-bit DAC output.
kACMP_PortInputFromMux	Port input from the analog 8-1 mux.

Definition at line 88 of file fsl_acmp.h.

{
    kACMP_PortInputFromDAC = 0U, /*!< Port input from the 8-bit DAC output. */
    kACMP_PortInputFromMux = 1U, /*!< Port input from the analog 8-1 mux. */
} acmp_port_input_t;

_acmp_reference_voltage_source

enum _acmp_reference_voltage_source

CMP Voltage Reference source.

Enumerator
kACMP_VrefSourceVin1	Vin1 is selected as resistor ladder network supply reference Vin.
kACMP_VrefSourceVin2	Vin2 is selected as resistor ladder network supply reference Vin.

Definition at line 80 of file fsl_acmp.h.

{
    kACMP_VrefSourceVin1 = 0U, /*!< Vin1 is selected as resistor ladder network supply reference Vin. */
    kACMP_VrefSourceVin2 = 1U, /*!< Vin2 is selected as resistor ladder network supply reference Vin. */
} acmp_reference_voltage_source_t;

_acmp_status_flags

enum _acmp_status_flags

Status flag mask.

Enumerator
kACMP_OutputRisingEventFlag	Rising-edge on compare output has occurred.
kACMP_OutputFallingEventFlag	Falling-edge on compare output has occurred.
kACMP_OutputAssertEventFlag	Return the current value of the analog comparator output.

Definition at line 43 of file fsl_acmp.h.

{
    kACMP_OutputRisingEventFlag = CMP_C0_CFR_MASK,  /*!< Rising-edge on compare output has occurred. */
    kACMP_OutputFallingEventFlag = CMP_C0_CFF_MASK, /*!< Falling-edge on compare output has occurred. */
    kACMP_OutputAssertEventFlag = CMP_C0_COUT_MASK, /*!< Return the current value of the analog comparator output. */
};

Function Documentation

ACMP_ClearRoundRobinStatusFlags()

void ACMP_ClearRoundRobinStatusFlags	(	CMP_Type *	base,
		uint32_t	mask
	)

Clears the channel input changed flags in round robin mode.

Parameters

base	ACMP peripheral base address.
mask	Mask of channel index. Available range is channel0:0x01 to channel7:0x80.

brief Clears the channel input changed flags in round robin mode.

param base ACMP peripheral base address. param mask Mask of channel index. Available range is channel0:0x01 to channel7:0x80.

Definition at line 470 of file fsl_acmp.c.

{
    /* CMPx_C2 */
    uint32_t tmp32 = (base->C2 & (~CMP_C2_CHnF_MASK));
 
    tmp32 |= (mask << CMP_C2_CH0F_SHIFT);
    base->C2 = tmp32;
}

ACMP_ClearStatusFlags()

void ACMP_ClearStatusFlags	(	CMP_Type *	base,
		uint32_t	mask
	)

Clears status flags.

Parameters

base	ACMP peripheral base address.
mask	Status flags mask. See "_acmp_status_flags".

brief Clears status flags.

param base ACMP peripheral base address. param mask Status flags mask. See "_acmp_status_flags".

Definition at line 589 of file fsl_acmp.c.

{
    /* CMPx_C0 */
    uint32_t tmp32 = (base->C0 & (~(CMP_C0_CFR_MASK | CMP_C0_CFF_MASK)));
 
    /* Clear flag according to mask. */
    if (kACMP_OutputRisingEventFlag == (mask & kACMP_OutputRisingEventFlag))
    {
        tmp32 |= CMP_C0_CFR_MASK;
    }
    if (kACMP_OutputFallingEventFlag == (mask & kACMP_OutputFallingEventFlag))
    {
        tmp32 |= CMP_C0_CFF_MASK;
    }
    base->C0 = tmp32;
}

Referenced by comp_lld_get_status().

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ACMP_Deinit()

void ACMP_Deinit

(

CMP_Type *

base

)

Deinitializes the ACMP.

Parameters

base	ACMP peripheral base address.

brief Deinitializes the ACMP.

param base ACMP peripheral base address.

Definition at line 120 of file fsl_acmp.c.

{
    /* Disable the module. */
    ACMP_Enable(base, false);
 
#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
    /* Disable clock gate. */
    CLOCK_DisableClock(s_acmpClock[ACMP_GetInstance(base)]);
#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
}

Referenced by comp_lld_stop().

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ACMP_DisableInterrupts()

void ACMP_DisableInterrupts	(	CMP_Type *	base,
		uint32_t	mask
	)

Disables interrupts.

Parameters

base	ACMP peripheral base address.
mask	Interrupts mask. See "_acmp_interrupt_enable".

brief Disables interrupts.

param base ACMP peripheral base address. param mask Interrupts mask. See "_acmp_interrupt_enable".

Definition at line 522 of file fsl_acmp.c.

{
    uint32_t tmp32;
 
    /* CMPx_C0
     * Set control bit. Avoid clearing status flags at the same time.
     * Clear CMP interrupt enable flag.
     */
    tmp32 = base->C0;
    if (kACMP_OutputRisingInterruptEnable == (mask & kACMP_OutputRisingInterruptEnable))
    {
        tmp32 &= ~(CMP_C0_IER_MASK | CMP_C0_CFx_MASK);
    }
    if (kACMP_OutputFallingInterruptEnable == (mask & kACMP_OutputFallingInterruptEnable))
    {
        tmp32 &= ~(CMP_C0_IEF_MASK | CMP_C0_CFx_MASK);
    }
    base->C0 = tmp32;
 
    /* CMPx_C2
     * Clear round robin interrupt enable flag.
     */
    if (kACMP_RoundRobinInterruptEnable == (mask & kACMP_RoundRobinInterruptEnable))
    {
        tmp32 = base->C2;
        /* Set control bit. Avoid clearing status flags at the same time. */
        tmp32 &= ~(CMP_C2_RRIE_MASK | CMP_C2_CHnF_MASK);
        base->C2 = tmp32;
    }
}

Referenced by comp_lld_disable().

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ACMP_Enable()

void ACMP_Enable	(	CMP_Type *	base,
		bool	enable
	)

Enables or disables the ACMP.

Parameters

base	ACMP peripheral base address.
enable	True to enable the ACMP.

brief Enables or disables the ACMP.

param base ACMP peripheral base address. param enable True to enable the ACMP.

Definition at line 172 of file fsl_acmp.c.

{
    /* CMPx_C0
     * Set control bit. Avoid clearing status flags at the same time.
     */
    if (enable)
    {
        base->C0 = ((base->C0 | CMP_C0_EN_MASK) & ~CMP_C0_CFx_MASK);
    }
    else
    {
        base->C0 &= ~(CMP_C0_EN_MASK | CMP_C0_CFx_MASK);
    }
}

Referenced by ACMP_Deinit(), ACMP_Init(), comp_lld_disable(), and comp_lld_enable().

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ACMP_EnableDMA()

void ACMP_EnableDMA	(	CMP_Type *	base,
		bool	enable
	)

Enables or disables DMA.

Parameters

base	ACMP peripheral base address.
enable	True to enable DMA.

brief Enables or disables DMA.

param base ACMP peripheral base address. param enable True to enable DMA.

Definition at line 260 of file fsl_acmp.c.

{
    /* CMPx_C0
     * Set control bit. Avoid clearing status flags at the same time.
     */
    if (enable)
    {
        base->C0 = ((base->C0 | CMP_C0_DMAEN_MASK) & ~CMP_C0_CFx_MASK);
    }
    else
    {
        base->C0 &= ~(CMP_C0_DMAEN_MASK | CMP_C0_CFx_MASK);
    }
}

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ACMP_EnableInterrupts()

void ACMP_EnableInterrupts	(	CMP_Type *	base,
		uint32_t	mask
	)

Enables interrupts.

Parameters

base	ACMP peripheral base address.
mask	Interrupts mask. See "_acmp_interrupt_enable".

brief Enables interrupts.

param base ACMP peripheral base address. param mask Interrupts mask. See "_acmp_interrupt_enable".

Definition at line 485 of file fsl_acmp.c.

{
    uint32_t tmp32;
 
    /* CMPx_C0
     * Set control bit. Avoid clearing status flags at the same time.
     * Set CMP interrupt enable flag.
     */
    tmp32 = base->C0 & ~CMP_C0_CFx_MASK; /* To protect the W1C flags. */
    if (kACMP_OutputRisingInterruptEnable == (mask & kACMP_OutputRisingInterruptEnable))
    {
        tmp32 = ((tmp32 | CMP_C0_IER_MASK) & ~CMP_C0_CFx_MASK);
    }
    if (kACMP_OutputFallingInterruptEnable == (mask & kACMP_OutputFallingInterruptEnable))
    {
        tmp32 = ((tmp32 | CMP_C0_IEF_MASK) & ~CMP_C0_CFx_MASK);
    }
    base->C0 = tmp32;
 
    /* CMPx_C2
     * Set round robin interrupt enable flag.
     */
    if (kACMP_RoundRobinInterruptEnable == (mask & kACMP_RoundRobinInterruptEnable))
    {
        tmp32 = base->C2;
        /* Set control bit. Avoid clearing status flags at the same time. */
        tmp32 = ((tmp32 | CMP_C2_RRIE_MASK) & ~CMP_C2_CHnF_MASK);
        base->C2 = tmp32;
    }
}

Referenced by comp_lld_enable().

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ACMP_EnableLinkToDAC()

void ACMP_EnableLinkToDAC	(	CMP_Type *	base,
		bool	enable
	)

Enables the link from CMP to DAC enable.

When this bit is set, the DAC enable/disable is controlled by the bit CMP_C0[EN] instead of CMP_C1[DACEN].

Parameters

base	ACMP peripheral base address.
enable	Enable the feature or not.

brief Enables the link from CMP to DAC enable.

When this bit is set, the DAC enable/disable is controlled by the bit CMP_C0[EN] instead of CMP_C1[DACEN].

param base ACMP peripheral base address. param enable Enable the feature or not.

Definition at line 196 of file fsl_acmp.c.

{
    /* CMPx_C0_LINKEN
     * Set control bit. Avoid clearing status flags at the same time.
     */
    if (enable)
    {
        base->C0 = ((base->C0 | CMP_C0_LINKEN_MASK) & ~CMP_C0_CFx_MASK);
    }
    else
    {
        base->C0 &= ~(CMP_C0_LINKEN_MASK | CMP_C0_CFx_MASK);
    }
}

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ACMP_EnableWindowMode()

void ACMP_EnableWindowMode	(	CMP_Type *	base,
		bool	enable
	)

Enables or disables window mode.

Parameters

base	ACMP peripheral base address.
enable	True to enable window mode.

brief Enables or disables window mode.

param base ACMP peripheral base address. param enable True to enable window mode.

Definition at line 281 of file fsl_acmp.c.

{
    /* CMPx_C0
     * Set control bit. Avoid clearing status flags at the same time.
     */
    if (enable)
    {
        base->C0 = ((base->C0 | CMP_C0_WE_MASK) & ~CMP_C0_CFx_MASK);
    }
    else
    {
        base->C0 &= ~(CMP_C0_WE_MASK | CMP_C0_CFx_MASK);
    }
}

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ACMP_GetDefaultConfig()

void ACMP_GetDefaultConfig

(

acmp_config_t *

config

)

Gets the default configuration for ACMP.

This function initializes the user configuration structure to default value. The default value are:

Example:

config->enableHighSpeed = false;
config->enableInvertOutput = false;
config->useUnfilteredOutput = false;
config->enablePinOut = false;
config->enableHysteresisBothDirections = false;
config->hysteresisMode = kACMP_hysteresisMode0;

Parameters

config

Pointer to ACMP configuration structure.

brief Gets the default configuration for ACMP.

This function initializes the user configuration structure to default value. The default value are:

Example: code config->enableHighSpeed = false; config->enableInvertOutput = false; config->useUnfilteredOutput = false; config->enablePinOut = false; config->enableHysteresisBothDirections = false; config->hysteresisMode = kACMP_hysteresisMode0; endcode

param config Pointer to ACMP configuration structure.

Definition at line 148 of file fsl_acmp.c.

{
    assert(NULL != config);
 
    /* Initializes the configure structure to zero. */
    memset(config, 0, sizeof(*config));
 
    /* Fill default configuration */
    config->enableHighSpeed = false;
    config->enableInvertOutput = false;
    config->useUnfilteredOutput = false;
    config->enablePinOut = false;
#if defined(FSL_FEATURE_ACMP_HAS_C0_OFFSET_BIT) && (FSL_FEATURE_ACMP_HAS_C0_OFFSET_BIT == 1U)
    config->offsetMode = kACMP_OffsetLevel0;
#endif /* FSL_FEATURE_ACMP_HAS_C0_OFFSET_BIT */
    config->hysteresisMode = kACMP_HysteresisLevel0;
}

Referenced by comp_lld_start().

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ACMP_GetDefaultDiscreteModeConfig()

void ACMP_GetDefaultDiscreteModeConfig

(

acmp_discrete_mode_config_t *

config

)

Get the default configuration for discrete mode setting.

Parameters

config

Pointer to configuration structure to be restored with the setting values.

brief Get the default configuration for discrete mode setting.

param config Pointer to configuration structure to be restored with the setting values.

Definition at line 645 of file fsl_acmp.c.

{
    assert(NULL != config);
 
    /* Initializes the configure structure to zero. */
    memset(config, 0, sizeof(*config));
 
    config->enablePositiveChannelDiscreteMode = false;
    config->enableNegativeChannelDiscreteMode = false;
    config->enableResistorDivider = false;
    config->clockSource = kACMP_DiscreteClockSlow;
    config->sampleTime = kACMP_DiscreteSampleTimeAs1T;
    config->phase1Time = kACMP_DiscretePhaseTimeAlt0;
    config->phase2Time = kACMP_DiscretePhaseTimeAlt0;
}

ACMP_GetRoundRobinResult()

static uint32_t ACMP_GetRoundRobinResult ( CMP_Type *  base )

inlinestatic

Gets the round robin result.

Note that the set-pre-state has different circuit with get-round-robin-result in the SOC even though they are same bits. So ACMP_GetRoundRobinResult() can't return the same value as the value are set by ACMP_SetRoundRobinPreState.

Parameters

base	ACMP peripheral base address.

Returns

Mask of round robin channel result. Available range is channel0:0x01 to channel7:0x80.

Definition at line 451 of file fsl_acmp.h.

{
    return ((base->C2 & CMP_C2_ACOn_MASK) >> CMP_C2_ACOn_SHIFT);
}

ACMP_GetRoundRobinStatusFlags()

static uint32_t ACMP_GetRoundRobinStatusFlags ( CMP_Type *  base )

inlinestatic

Gets the channel input changed flags in round robin mode.

Parameters

base	ACMP peripheral base address.

Returns

Mask of channel input changed asserted flags. Available range is channel0:0x01 to channel7:0x80.

Definition at line 429 of file fsl_acmp.h.

{
    return (((base->C2) & CMP_C2_CHnF_MASK) >> CMP_C2_CH0F_SHIFT);
}

ACMP_GetStatusFlags()

uint32_t ACMP_GetStatusFlags

(

CMP_Type *

base

)

Gets status flags.

Parameters

base	ACMP peripheral base address.

Returns

Status flags asserted mask. See "_acmp_status_flags".

brief Gets status flags.

param base ACMP peripheral base address. return Status flags asserted mask. See "_acmp_status_flags".

Definition at line 559 of file fsl_acmp.c.

{
    uint32_t status = 0U;
    uint32_t tmp32 = base->C0;
 
    /* CMPx_C0
     * Check if each flag is set.
     */
    if (CMP_C0_CFR_MASK == (tmp32 & CMP_C0_CFR_MASK))
    {
        status |= kACMP_OutputRisingEventFlag;
    }
    if (CMP_C0_CFF_MASK == (tmp32 & CMP_C0_CFF_MASK))
    {
        status |= kACMP_OutputFallingEventFlag;
    }
    if (CMP_C0_COUT_MASK == (tmp32 & CMP_C0_COUT_MASK))
    {
        status |= kACMP_OutputAssertEventFlag;
    }
 
    return status;
}

Referenced by comp_lld_get_status().

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ACMP_Init()

void ACMP_Init	(	CMP_Type *	base,
		const acmp_config_t *	config
	)

Initializes the ACMP.

The default configuration can be got by calling ACMP_GetDefaultConfig().

Parameters

base	ACMP peripheral base address.
config	Pointer to ACMP configuration structure.

brief Initializes the ACMP.

The default configuration can be got by calling ACMP_GetDefaultConfig().

param base ACMP peripheral base address. param config Pointer to ACMP configuration structure.

Definition at line 70 of file fsl_acmp.c.

{
    assert(NULL != config);
 
    uint32_t tmp32;
 
#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
    /* Open clock gate. */
    CLOCK_EnableClock(s_acmpClock[ACMP_GetInstance(base)]);
#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
 
    /* Disable the module before configuring it. */
    ACMP_Enable(base, false);
 
    /* CMPx_C0
     * Set control bit. Avoid clearing status flags at the same time.
     */
    tmp32 = (base->C0 & (~(CMP_C0_PMODE_MASK | CMP_C0_INVT_MASK | CMP_C0_COS_MASK | CMP_C0_OPE_MASK |
                           CMP_C0_HYSTCTR_MASK | CMP_C0_CFx_MASK)));
#if defined(FSL_FEATURE_ACMP_HAS_C0_OFFSET_BIT) && (FSL_FEATURE_ACMP_HAS_C0_OFFSET_BIT == 1U)
    tmp32 &= ~CMP_C0_OFFSET_MASK;
#endif /* FSL_FEATURE_ACMP_HAS_C0_OFFSET_BIT */
    if (config->enableHighSpeed)
    {
        tmp32 |= CMP_C0_PMODE_MASK;
    }
    if (config->enableInvertOutput)
    {
        tmp32 |= CMP_C0_INVT_MASK;
    }
    if (config->useUnfilteredOutput)
    {
        tmp32 |= CMP_C0_COS_MASK;
    }
    if (config->enablePinOut)
    {
        tmp32 |= CMP_C0_OPE_MASK;
    }
    tmp32 |= CMP_C0_HYSTCTR(config->hysteresisMode);
#if defined(FSL_FEATURE_ACMP_HAS_C0_OFFSET_BIT) && (FSL_FEATURE_ACMP_HAS_C0_OFFSET_BIT == 1U)
    tmp32 |= CMP_C0_OFFSET(config->offsetMode);
#endif /* FSL_FEATURE_ACMP_HAS_C0_OFFSET_BIT */
    base->C0 = tmp32;
}

Referenced by comp_lld_start().

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ACMP_SetChannelConfig()

void ACMP_SetChannelConfig	(	CMP_Type *	base,
		const acmp_channel_config_t *	config
	)

Sets the channel configuration.

Note that the plus/minus mux's setting is only valid when the positive/negative port's input isn't from DAC but from channel mux.

Example:

acmp_channel_config_t configStruct = {0};
configStruct.positivePortInput = kACMP_PortInputFromDAC;
configStruct.negativePortInput = kACMP_PortInputFromMux;
configStruct.minusMuxInput = 1U;
ACMP_SetChannelConfig(CMP0, &configStruct);

Parameters

base	ACMP peripheral base address.
config	Pointer to channel configuration structure.

brief Sets the channel configuration.

Note that the plus/minus mux's setting is only valid when the positive/negative port's input isn't from DAC but from channel mux.

Example: code acmp_channel_config_t configStruct = {0}; configStruct.positivePortInput = kACMP_PortInputFromDAC; configStruct.negativePortInput = kACMP_PortInputFromMux; configStruct.minusMuxInput = 1U; ACMP_SetChannelConfig(CMP0, &configStruct); endcode

param base ACMP peripheral base address. param config Pointer to channel configuration structure.

Definition at line 230 of file fsl_acmp.c.

{
    assert(NULL != config);
 
    uint32_t tmp32 = (base->C1 & (~(CMP_C1_PSEL_MASK | CMP_C1_MSEL_MASK)));
 
/* CMPx_C1
 * Set the input of CMP's positive port.
 */
#if (defined(FSL_FEATURE_ACMP_HAS_C1_INPSEL_BIT) && (FSL_FEATURE_ACMP_HAS_C1_INPSEL_BIT == 1U))
    tmp32 &= ~CMP_C1_INPSEL_MASK;
    tmp32 |= CMP_C1_INPSEL(config->positivePortInput);
#endif /* FSL_FEATURE_ACMP_HAS_C1_INPSEL_BIT */
 
#if (defined(FSL_FEATURE_ACMP_HAS_C1_INNSEL_BIT) && (FSL_FEATURE_ACMP_HAS_C1_INNSEL_BIT == 1U))
    tmp32 &= ~CMP_C1_INNSEL_MASK;
    tmp32 |= CMP_C1_INNSEL(config->negativePortInput);
#endif /* FSL_FEATURE_ACMP_HAS_C1_INPSEL_BIT */
 
    tmp32 |= CMP_C1_PSEL(config->plusMuxInput) | CMP_C1_MSEL(config->minusMuxInput);
 
    base->C1 = tmp32;
}

Referenced by comp_lld_channel_enable().

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ACMP_SetDACConfig()

void ACMP_SetDACConfig	(	CMP_Type *	base,
		const acmp_dac_config_t *	config
	)

Configures the internal DAC.

Example:

acmp_dac_config_t configStruct = {0};
configStruct.referenceVoltageSource = kACMP_VrefSourceVin1;
configStruct.DACValue = 20U;
configStruct.enableOutput = false;
configStruct.workMode = kACMP_DACWorkLowSpeedMode;
ACMP_SetDACConfig(CMP0, &configStruct);

Parameters

base	ACMP peripheral base address.
config	Pointer to DAC configuration structure. "NULL" is for disabling the feature.

brief Configures the internal DAC.

Example: code acmp_dac_config_t configStruct = {0}; configStruct.referenceVoltageSource = kACMP_VrefSourceVin1; configStruct.DACValue = 20U; configStruct.enableOutput = false; configStruct.workMode = kACMP_DACWorkLowSpeedMode; ACMP_SetDACConfig(CMP0, &configStruct); endcode

param base ACMP peripheral base address. param config Pointer to DAC configuration structure. "NULL" is for disabling the feature.

Definition at line 348 of file fsl_acmp.c.

{
    uint32_t tmp32;
 
    /* CMPx_C1
     * NULL configuration means to disable the feature.
     */
    if (NULL == config)
    {
        base->C1 &= ~CMP_C1_DACEN_MASK;
        return;
    }
 
    tmp32 = (base->C1 & (~(CMP_C1_VRSEL_MASK | CMP_C1_VOSEL_MASK)));
    /* Set configuration and enable the feature. */
    tmp32 |= (CMP_C1_VRSEL(config->referenceVoltageSource) | CMP_C1_VOSEL(config->DACValue) | CMP_C1_DACEN_MASK);
 
#if defined(FSL_FEATURE_ACMP_HAS_C1_DACOE_BIT) && (FSL_FEATURE_ACMP_HAS_C1_DACOE_BIT == 1U)
    tmp32 &= ~CMP_C1_DACOE_MASK;
    if (config->enableOutput)
    {
        tmp32 |= CMP_C1_DACOE_MASK;
    }
#endif /* FSL_FEATURE_ACMP_HAS_C1_DACOE_BIT */
 
#if defined(FSL_FEATURE_ACMP_HAS_C1_DMODE_BIT) && (FSL_FEATURE_ACMP_HAS_C1_DMODE_BIT == 1U)
    switch (config->workMode)
    {
        case kACMP_DACWorkLowSpeedMode:
            tmp32 &= ~CMP_C1_DMODE_MASK;
            break;
        case kACMP_DACWorkHighSpeedMode:
            tmp32 |= CMP_C1_DMODE_MASK;
            break;
        default:
            break;
    }
#endif /* FSL_FEATURE_ACMP_HAS_C1_DMODE_BIT */
 
    base->C1 = tmp32;
}

Referenced by comp_lld_set_dac_value().

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ACMP_SetDiscreteModeConfig()

void ACMP_SetDiscreteModeConfig	(	CMP_Type *	base,
		const acmp_discrete_mode_config_t *	config
	)

Configure the discrete mode.

Configure the discrete mode when supporting 3V domain with 1.8V core.

Parameters

base	ACMP peripheral base address.
config	Pointer to configuration structure. See "acmp_discrete_mode_config_t".

brief Configure the discrete mode.

Configure the discrete mode when supporting 3V domain with 1.8V core.

param base ACMP peripheral base address. param config Pointer to configuration structure. See "acmp_discrete_mode_config_t".

Definition at line 615 of file fsl_acmp.c.

{
    uint32_t tmp32 = 0U;
 
    if (!config->enablePositiveChannelDiscreteMode)
    {
        tmp32 |= CMP_C3_PCHCTEN_MASK;
    }
    if (!config->enableNegativeChannelDiscreteMode)
    {
        tmp32 |= CMP_C3_NCHCTEN_MASK;
    }
    if (config->enableResistorDivider)
    {
        tmp32 |= CMP_C3_RDIVE_MASK;
    }
 
    tmp32 |= CMP_C3_DMCS(config->clockSource)      /* Select the clock. */
             | CMP_C3_ACSAT(config->sampleTime)    /* Sample time period. */
             | CMP_C3_ACPH1TC(config->phase1Time)  /* Phase 1 sample time. */
             | CMP_C3_ACPH2TC(config->phase2Time); /* Phase 2 sample time. */
 
    base->C3 = tmp32;
}

ACMP_SetFilterConfig()

void ACMP_SetFilterConfig	(	CMP_Type *	base,
		const acmp_filter_config_t *	config
	)

Configures the filter.

The filter can be enabled when the filter count is bigger than 1, the filter period is greater than 0 and the sample clock is from divided bus clock or the filter is bigger than 1 and the sample clock is from external clock. Detailed usage can be got from the reference manual.

Example:

acmp_filter_config_t configStruct = {0};
configStruct.filterCount = 5U;
configStruct.filterPeriod = 200U;
configStruct.enableSample = false;
ACMP_SetFilterConfig(CMP0, &configStruct);

Parameters

base	ACMP peripheral base address.
config	Pointer to filter configuration structure.

brief Configures the filter.

The filter can be enabled when the filter count is bigger than 1, the filter period is greater than 0 and the sample clock is from divided bus clock or the filter is bigger than 1 and the sample clock is from external clock. Detailed usage can be got from the reference manual.

Example: code acmp_filter_config_t configStruct = {0}; configStruct.filterCount = 5U; configStruct.filterPeriod = 200U; configStruct.enableSample = false; ACMP_SetFilterConfig(CMP0, &configStruct); endcode

param base ACMP peripheral base address. param config Pointer to filter configuration structure.

Definition at line 315 of file fsl_acmp.c.

{
    assert(NULL != config);
 
    /* CMPx_C0
     * Set control bit. Avoid clearing status flags at the same time.
     */
    uint32_t tmp32 = (base->C0 & (~(CMP_C0_FILTER_CNT_MASK | CMP_C0_FPR_MASK | CMP_C0_SE_MASK | CMP_C0_CFx_MASK)));
 
    if (config->enableSample)
    {
        tmp32 |= CMP_C0_SE_MASK;
    }
    tmp32 |= (CMP_C0_FILTER_CNT(config->filterCount) | CMP_C0_FPR(config->filterPeriod));
    base->C0 = tmp32;
}

Referenced by comp_lld_start().

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ACMP_SetRoundRobinConfig()

void ACMP_SetRoundRobinConfig	(	CMP_Type *	base,
		const acmp_round_robin_config_t *	config
	)

Configures the round robin mode.

Example:

acmp_round_robin_config_t configStruct = {0};
configStruct.fixedPort = kACMP_FixedPlusPort;
configStruct.fixedChannelNumber = 3U;
configStruct.checkerChannelMask = 0xF7U;
configStruct.sampleClockCount = 0U;
configStruct.delayModulus = 0U;
ACMP_SetRoundRobinConfig(CMP0, &configStruct);

Parameters

base	ACMP peripheral base address.
config	Pointer to round robin mode configuration structure. "NULL" is for disabling the feature.

brief Configures the round robin mode.

Example: code acmp_round_robin_config_t configStruct = {0}; configStruct.fixedPort = kACMP_FixedPlusPort; configStruct.fixedChannelNumber = 3U; configStruct.checkerChannelMask = 0xF7U; configStruct.sampleClockCount = 0U; configStruct.delayModulus = 0U; ACMP_SetRoundRobinConfig(CMP0, &configStruct); endcode param base ACMP peripheral base address. param config Pointer to round robin mode configuration structure. "NULL" is for disabling the feature.

Definition at line 406 of file fsl_acmp.c.

{
    uint32_t tmp32;
 
    /* CMPx_C2
     * Set control bit. Avoid clearing status flags at the same time.
     * NULL configuration means to disable the feature.
     */
    if (NULL == config)
    {
        tmp32 = CMP_C2_CHnF_MASK;
#if defined(FSL_FEATURE_ACMP_HAS_C2_RRE_BIT) && (FSL_FEATURE_ACMP_HAS_C2_RRE_BIT == 1U)
        tmp32 |= CMP_C2_RRE_MASK;
#endif /* FSL_FEATURE_ACMP_HAS_C2_RRE_BIT */
        base->C2 &= ~(tmp32);
        return;
    }
 
    /* CMPx_C1
     * Set all channel's round robin checker enable mask.
     */
    tmp32 = (base->C1 & ~(CMP_C1_CHNn_MASK));
    tmp32 |= ((config->checkerChannelMask) << CMP_C1_CHN0_SHIFT);
    base->C1 = tmp32;
 
    /* CMPx_C2
     * Set configuration and enable the feature.
     */
    tmp32 = (base->C2 &
             (~(CMP_C2_FXMP_MASK | CMP_C2_FXMXCH_MASK | CMP_C2_NSAM_MASK | CMP_C2_INITMOD_MASK | CMP_C2_CHnF_MASK)));
    tmp32 |= (CMP_C2_FXMP(config->fixedPort) | CMP_C2_FXMXCH(config->fixedChannelNumber) |
              CMP_C2_NSAM(config->sampleClockCount) | CMP_C2_INITMOD(config->delayModulus));
#if defined(FSL_FEATURE_ACMP_HAS_C2_RRE_BIT) && (FSL_FEATURE_ACMP_HAS_C2_RRE_BIT == 1U)
    tmp32 |= CMP_C2_RRE_MASK;
#endif /* FSL_FEATURE_ACMP_HAS_C2_RRE_BIT */
    base->C2 = tmp32;
}

ACMP_SetRoundRobinPreState()

void ACMP_SetRoundRobinPreState	(	CMP_Type *	base,
		uint32_t	mask
	)

Defines the pre-set state of channels in round robin mode.

Note: The pre-state has different circuit with get-round-robin-result in the SOC even though they are same bits. So get-round-robin-result can't return the same value as the value are set by pre-state.

Parameters

base	ACMP peripheral base address.
mask	Mask of round robin channel index. Available range is channel0:0x01 to channel7:0x80.

brief Defines the pre-set state of channels in round robin mode.

Note: The pre-state has different circuit with get-round-robin-result in the SOC even though they are same bits. So get-round-robin-result can't return the same value as the value are set by pre-state.

param base ACMP peripheral base address. param mask Mask of round robin channel index. Available range is channel0:0x01 to channel7:0x80.

Definition at line 453 of file fsl_acmp.c.

{
    /* CMPx_C2
     * Set control bit. Avoid clearing status flags at the same time.
     */
    uint32_t tmp32 = (base->C2 & ~(CMP_C2_ACOn_MASK | CMP_C2_CHnF_MASK));
 
    tmp32 |= (mask << CMP_C2_ACOn_SHIFT);
    base->C2 = tmp32;
}

Variable Documentation

checkerChannelMask

uint32_t _acmp_round_robin_config::checkerChannelMask

Mask of checker channel index. Available range is channel0:0x01 to channel7:0x80 for round-robin checker.

Definition at line 170 of file fsl_acmp.h.

clockSource

acmp_discrete_clock_source_t _acmp_discrete_mode_config::clockSource

Select the clock source in order to generate the requiried timing for comparator to work in discrete mode.

Definition at line 227 of file fsl_acmp.h.

DACValue

uint32_t _acmp_dac_config::DACValue

Value for DAC Output Voltage. Available range is 0-63.

Definition at line 154 of file fsl_acmp.h.

Referenced by comp_lld_set_dac_value().

delayModulus

uint32_t _acmp_round_robin_config::delayModulus

Comparator and DAC initialization delay modulus.

Definition at line 173 of file fsl_acmp.h.

enableHighSpeed

bool _acmp_config::enableHighSpeed

Enable High Speed (HS) comparison mode.

Definition at line 118 of file fsl_acmp.h.

Referenced by comp_lld_start().

enableInvertOutput

bool _acmp_config::enableInvertOutput

Enable inverted comparator output.

Definition at line 119 of file fsl_acmp.h.

Referenced by comp_lld_start().

enableNegativeChannelDiscreteMode

bool _acmp_discrete_mode_config::enableNegativeChannelDiscreteMode

Negative Channel Continuous Mode Enable. By default, the continuous mode is used.

Definition at line 223 of file fsl_acmp.h.

enableOutput

bool _acmp_dac_config::enableOutput

Enable the DAC output.

Definition at line 157 of file fsl_acmp.h.

enablePinOut

bool _acmp_config::enablePinOut

The comparator output is available on the associated pin.

Definition at line 121 of file fsl_acmp.h.

enablePositiveChannelDiscreteMode

bool _acmp_discrete_mode_config::enablePositiveChannelDiscreteMode

Positive Channel Continuous Mode Enable. By default, the continuous mode is used.

Definition at line 221 of file fsl_acmp.h.

enableResistorDivider

bool _acmp_discrete_mode_config::enableResistorDivider

Resistor Divider Enable is used to enable the resistor divider for the inputs when they come from 3v domain and their values are above 1.8v.

Definition at line 225 of file fsl_acmp.h.

enableSample

bool _acmp_filter_config::enableSample

Using external SAMPLE as sampling clock input, or using divided bus clock.

Definition at line 145 of file fsl_acmp.h.

Referenced by comp_lld_start().

filterCount

uint32_t _acmp_filter_config::filterCount

Filter Sample Count. Available range is 1-7, 0 would cause the filter disabled.

Definition at line 146 of file fsl_acmp.h.

Referenced by comp_lld_start().

filterPeriod

uint32_t _acmp_filter_config::filterPeriod

Filter Sample Period. The divider to bus clock. Available range is 0-255.

Definition at line 147 of file fsl_acmp.h.

Referenced by comp_lld_start().

fixedChannelNumber

uint32_t _acmp_round_robin_config::fixedChannelNumber

Indicates which channel is fixed in the fixed mux port.

Definition at line 169 of file fsl_acmp.h.

fixedPort

acmp_fixed_port_t _acmp_round_robin_config::fixedPort

Fixed mux port.

Definition at line 168 of file fsl_acmp.h.

hysteresisMode

acmp_hysteresis_mode_t _acmp_config::hysteresisMode

Hysteresis mode.

Definition at line 117 of file fsl_acmp.h.

Referenced by comp_lld_start().

minusMuxInput

uint32_t _acmp_channel_config::minusMuxInput

Minus mux input channel(0~7).

Definition at line 139 of file fsl_acmp.h.

Referenced by comp_lld_channel_enable().

negativePortInput

acmp_port_input_t _acmp_channel_config::negativePortInput

Input source of the comparator's negative port.

Definition at line 137 of file fsl_acmp.h.

Referenced by comp_lld_channel_enable().

offsetMode

acmp_offset_mode_t _acmp_config::offsetMode

Offset mode.

Definition at line 115 of file fsl_acmp.h.

phase1Time

acmp_discrete_phase_time_t _acmp_discrete_mode_config::phase1Time

Select the ACMP phase 1 sampling time.

Definition at line 230 of file fsl_acmp.h.

phase2Time

acmp_discrete_phase_time_t _acmp_discrete_mode_config::phase2Time

Select the ACMP phase 2 sampling time.

Definition at line 231 of file fsl_acmp.h.

plusMuxInput

uint32_t _acmp_channel_config::plusMuxInput

Plus mux input channel(0~7).

Definition at line 135 of file fsl_acmp.h.

Referenced by comp_lld_channel_enable().

positivePortInput

acmp_port_input_t _acmp_channel_config::positivePortInput

Input source of the comparator's positive port.

Definition at line 133 of file fsl_acmp.h.

Referenced by comp_lld_channel_enable().

referenceVoltageSource

acmp_reference_voltage_source_t _acmp_dac_config::referenceVoltageSource

Supply voltage reference source.

Definition at line 153 of file fsl_acmp.h.

Referenced by comp_lld_start().

sampleClockCount

uint32_t _acmp_round_robin_config::sampleClockCount

Specifies how many round-robin clock cycles(0~3) later the sample takes place.

Definition at line 172 of file fsl_acmp.h.

sampleTime

acmp_discrete_sample_time_t _acmp_discrete_mode_config::sampleTime

Select the ACMP total sampling time period.

Definition at line 229 of file fsl_acmp.h.

useUnfilteredOutput

bool _acmp_config::useUnfilteredOutput

Set compare output(COUT) to equal COUTA(true) or COUT(false).

Definition at line 120 of file fsl_acmp.h.

Referenced by comp_lld_start().

workMode

acmp_dac_work_mode_t _acmp_dac_config::workMode

Definition at line 161 of file fsl_acmp.h.