Description

Analog comparator (ACMP) Peripheral API.

The Analog Comparator is used to compare voltage of two analog inputs with a digital output indicating which input voltage is higher. Inputs can either be one of the selectable internal references or from external pins. Response time and current consumption can be configured by altering the current supply to the comparator.

ACMP is available down to EM3 and is able to wake up the system when input signals pass a certain threshold. Use ACMP_IntEnable() to enable an edge interrupt to use this functionality.

This example shows how to use the em_acmp.h API for comparing an input pin to an internal 2.5 V reference voltage.

       
        /* The ACMP is a high-frequency peripheral so we need to enable
       
        * both the HFPER clock and the ACMP0 clock. */
       
        CMU_ClockEnable
       
       (
       
        cmuClock_HFPER
       
       ,
       
        true
       
       );
      
        CMU_ClockEnable
       
       (
       
        cmuClock_ACMP0
       
       ,
       
        true
       
       );
      
        /* Initialize with default settings. */
       
        ACMP_Init_TypeDef
       
       init =
       
        ACMP_INIT_DEFAULT
       
       ;
      
       init.
       
        enable
       
       =
       
        false
       
       ;
      
        ACMP_Init
       
       (ACMP0, &init);
      
        /* In this example we want to compare an analog input to the 2.5 V
       
        * internal reference. To achieve this we first have to configure the
       
        * VB source which is used for internal reference voltages. */
       
        ACMP_VBConfig_TypeDef
       
       vbconfig =
       
        ACMP_VBCONFIG_DEFAULT
       
       ;
      
       vbconfig.
       
        input
       
       =
       
        acmpVBInput2V5
       
       ;
      
        ACMP_VBSetup
       
       (ACMP0, &vbconfig);
      
        /* Now we select the two inputs to compare. Here we compare the APORT0XCH0
       
        * input to the internal 2.5V reference that we previously configured. When
       
        * APORT0XCH0 is lower than 2.5 V then the ACMP output is 0 and when
       
        * APORT0XCH0 is is higher than 2.5 V then the ACMP output is 1. */
       
        ACMP_ChannelSet
       
       (ACMP0,
       
        acmpInputVBDIV
       
       ,
       
        acmpInputAPORT0XCH0
       
       );
      
        /* To be able to probe the output we can send the ACMP output to a pin.
       
        * The second argument to this function is the pin location which is
       
        * device dependent. */
       
        ACMP_GPIOSetup
       
       (ACMP0, 0,
       
        true
       
       ,
       
        false
       
       );
      
        /* Finally we enable the ACMP. */
       
        ACMP_Enable
       
       (ACMP0);

Note: ACMP can also be used to compare two separate input pins.

ACMP also contains specialized hardware for capacitive sensing. This module contains the ACMP_CapsenseInit() function to initialize ACMP for capacitive sensing and the ACMP_CapsenseChannelSet() function to select the current capsense channel.

For applications that require capacitive sensing it is recommended to use a library, such as cslib, which is provided by Silicon Labs.

Data Structures
struct	ACMP_CapsenseInit_TypeDef
	Capsense initialization structure.

struct	ACMP_Init_TypeDef
	ACMP initialization structure.

struct	ACMP_VAConfig_TypeDef
	VA Configuration structure.

struct	ACMP_VBConfig_TypeDef
	VB Configuration structure.

Functions
void	ACMP_CapsenseInit (ACMP_TypeDef acmp, const ACMP_CapsenseInit_TypeDef init)
	Set up ACMP for use in capacitive sense applications.

void	ACMP_CapsenseChannelSet (ACMP_TypeDef *acmp, ACMP_Channel_TypeDef channel)
	Set the ACMP channel used for capacitive sensing.

void	ACMP_ChannelSet (ACMP_TypeDef *acmp, ACMP_Channel_TypeDef negSel, ACMP_Channel_TypeDef posSel)
	Set which channels should be used in ACMP comparisons.

void	ACMP_Disable (ACMP_TypeDef *acmp)
	Disable ACMP.

void	ACMP_Enable (ACMP_TypeDef *acmp)
	Enable ACMP.

void	ACMP_ExternalInputSelect (ACMP_TypeDef *acmp, ACMP_ExternalInput_Typedef aport)
	Select and enable external input.

void	ACMP_GPIOSetup (ACMP_TypeDef *acmp, uint32_t location, bool enable, bool invert)
	Set up GPIO output from ACMP.

void	ACMP_Init (ACMP_TypeDef acmp, const ACMP_Init_TypeDef init)
	Initialize ACMP.

void	ACMP_Reset (ACMP_TypeDef *acmp)
	Reset ACMP to the same state that it was in after a hardware reset.

void	ACMP_VASetup (ACMP_TypeDef acmp, const ACMP_VAConfig_TypeDef vaconfig)
	Set up the VA source.

void	ACMP_VBSetup (ACMP_TypeDef acmp, const ACMP_VBConfig_TypeDef vbconfig)
	Set up the VB Source.

void	ACMP_IntClear (ACMP_TypeDef *acmp, uint32_t flags)
	Clear one or more pending ACMP interrupts.

void	ACMP_IntDisable (ACMP_TypeDef *acmp, uint32_t flags)
	Disable one or more ACMP interrupts.

void	ACMP_IntEnable (ACMP_TypeDef *acmp, uint32_t flags)
	Enable one or more ACMP interrupts.

uint32_t	ACMP_IntGet (ACMP_TypeDef *acmp)
	Get pending ACMP interrupt flags.

uint32_t	ACMP_IntGetEnabled (ACMP_TypeDef *acmp)
	Get enabled and pending ACMP interrupt flags.

void	ACMP_IntSet (ACMP_TypeDef *acmp, uint32_t flags)
	Set one or more pending ACMP interrupts from software.

Macros
#define	ACMP_CAPSENSE_INIT_DEFAULT
	A default configuration for capacitive sense mode initialization.

#define	ACMP_INIT_DEFAULT
	Default configuration for ACMP regular initialization.

#define	ACMP_VACONFIG_DEFAULT
	VA default configuration.

#define	ACMP_VBCONFIG_DEFAULT
	VB default configuration.

Enumerations
enum	ACMP_CapsenseResistor_TypeDef { acmpResistor0 = _ACMP_INPUTSEL_CSRESSEL_RES0, acmpResistor1 = _ACMP_INPUTSEL_CSRESSEL_RES1, acmpResistor2 = _ACMP_INPUTSEL_CSRESSEL_RES2, acmpResistor3 = _ACMP_INPUTSEL_CSRESSEL_RES3, acmpResistor4 = _ACMP_INPUTSEL_CSRESSEL_RES4, acmpResistor5 = _ACMP_INPUTSEL_CSRESSEL_RES5, acmpResistor6 = _ACMP_INPUTSEL_CSRESSEL_RES6, acmpResistor7 = _ACMP_INPUTSEL_CSRESSEL_RES7 }
	Resistor values used for the internal capacitive sense resistor.

enum	ACMP_HysteresisLevel_TypeDef { acmpHysteresisLevel0 = _ACMP_HYSTERESIS0_HYST_HYST0, acmpHysteresisLevel1 = _ACMP_HYSTERESIS0_HYST_HYST1, acmpHysteresisLevel2 = _ACMP_HYSTERESIS0_HYST_HYST2, acmpHysteresisLevel3 = _ACMP_HYSTERESIS0_HYST_HYST3, acmpHysteresisLevel4 = _ACMP_HYSTERESIS0_HYST_HYST4, acmpHysteresisLevel5 = _ACMP_HYSTERESIS0_HYST_HYST5, acmpHysteresisLevel6 = _ACMP_HYSTERESIS0_HYST_HYST6, acmpHysteresisLevel7 = _ACMP_HYSTERESIS0_HYST_HYST7, acmpHysteresisLevel8 = _ACMP_HYSTERESIS0_HYST_HYST8, acmpHysteresisLevel9 = _ACMP_HYSTERESIS0_HYST_HYST9, acmpHysteresisLevel10 = _ACMP_HYSTERESIS0_HYST_HYST10, acmpHysteresisLevel11 = _ACMP_HYSTERESIS0_HYST_HYST11, acmpHysteresisLevel12 = _ACMP_HYSTERESIS0_HYST_HYST12, acmpHysteresisLevel13 = _ACMP_HYSTERESIS0_HYST_HYST13, acmpHysteresisLevel14 = _ACMP_HYSTERESIS0_HYST_HYST14, acmpHysteresisLevel15 = _ACMP_HYSTERESIS0_HYST_HYST15 }
	Hysteresis level.

enum	ACMP_InputRange_TypeDef { acmpInputRangeFull = _ACMP_CTRL_INPUTRANGE_FULL, acmpInputRangeHigh = _ACMP_CTRL_INPUTRANGE_GTVDDDIV2, acmpInputRangeLow = _ACMP_CTRL_INPUTRANGE_LTVDDDIV2 }
	Adjust ACMP performance for a given input voltage range.

enum	ACMP_PowerSource_TypeDef { acmpPowerSourceAvdd = _ACMP_CTRL_PWRSEL_AVDD, acmpPowerSourceDvdd = _ACMP_CTRL_PWRSEL_DVDD, acmpPowerSourceIOVdd0 = _ACMP_CTRL_PWRSEL_IOVDD0, acmpPowerSourceIOVdd1 = _ACMP_CTRL_PWRSEL_IOVDD1 }
	ACMP Power source.

enum	ACMP_Accuracy_TypeDef { acmpAccuracyLow = _ACMP_CTRL_ACCURACY_LOW, acmpAccuracyHigh = _ACMP_CTRL_ACCURACY_HIGH }
	ACMP accuracy mode.

enum	ACMP_VAInput_TypeDef { acmpVAInputVDD = _ACMP_INPUTSEL_VASEL_VDD, acmpVAInputAPORT2YCH0 = _ACMP_INPUTSEL_VASEL_APORT2YCH0, acmpVAInputAPORT2YCH2 = _ACMP_INPUTSEL_VASEL_APORT2YCH2, acmpVAInputAPORT2YCH4 = _ACMP_INPUTSEL_VASEL_APORT2YCH4, acmpVAInputAPORT2YCH6 = _ACMP_INPUTSEL_VASEL_APORT2YCH6, acmpVAInputAPORT2YCH8 = _ACMP_INPUTSEL_VASEL_APORT2YCH8, acmpVAInputAPORT2YCH10 = _ACMP_INPUTSEL_VASEL_APORT2YCH10, acmpVAInputAPORT2YCH12 = _ACMP_INPUTSEL_VASEL_APORT2YCH12, acmpVAInputAPORT2YCH14 = _ACMP_INPUTSEL_VASEL_APORT2YCH14, acmpVAInputAPORT2YCH16 = _ACMP_INPUTSEL_VASEL_APORT2YCH16, acmpVAInputAPORT2YCH18 = _ACMP_INPUTSEL_VASEL_APORT2YCH18, acmpVAInputAPORT2YCH20 = _ACMP_INPUTSEL_VASEL_APORT2YCH20, acmpVAInputAPORT2YCH22 = _ACMP_INPUTSEL_VASEL_APORT2YCH22, acmpVAInputAPORT2YCH24 = _ACMP_INPUTSEL_VASEL_APORT2YCH24, acmpVAInputAPORT2YCH26 = _ACMP_INPUTSEL_VASEL_APORT2YCH26, acmpVAInputAPORT2YCH28 = _ACMP_INPUTSEL_VASEL_APORT2YCH28, acmpVAInputAPORT2YCH30 = _ACMP_INPUTSEL_VASEL_APORT2YCH30, acmpVAInputAPORT1XCH0 = _ACMP_INPUTSEL_VASEL_APORT1XCH0, acmpVAInputAPORT1YCH1 = _ACMP_INPUTSEL_VASEL_APORT1YCH1, acmpVAInputAPORT1XCH2 = _ACMP_INPUTSEL_VASEL_APORT1XCH2, acmpVAInputAPORT1YCH3 = _ACMP_INPUTSEL_VASEL_APORT1YCH3, acmpVAInputAPORT1XCH4 = _ACMP_INPUTSEL_VASEL_APORT1XCH4, acmpVAInputAPORT1YCH5 = _ACMP_INPUTSEL_VASEL_APORT1YCH5, acmpVAInputAPORT1XCH6 = _ACMP_INPUTSEL_VASEL_APORT1XCH6, acmpVAInputAPORT1YCH7 = _ACMP_INPUTSEL_VASEL_APORT1YCH7, acmpVAInputAPORT1XCH8 = _ACMP_INPUTSEL_VASEL_APORT1XCH8, acmpVAInputAPORT1YCH9 = _ACMP_INPUTSEL_VASEL_APORT1YCH9, acmpVAInputAPORT1XCH10 = _ACMP_INPUTSEL_VASEL_APORT1XCH10, acmpVAInputAPORT1YCH11 = _ACMP_INPUTSEL_VASEL_APORT1YCH11, acmpVAInputAPORT1XCH12 = _ACMP_INPUTSEL_VASEL_APORT1XCH12, acmpVAInputAPORT1YCH13 = _ACMP_INPUTSEL_VASEL_APORT1YCH13, acmpVAInputAPORT1XCH14 = _ACMP_INPUTSEL_VASEL_APORT1XCH14, acmpVAInputAPORT1YCH15 = _ACMP_INPUTSEL_VASEL_APORT1YCH15, acmpVAInputAPORT1XCH16 = _ACMP_INPUTSEL_VASEL_APORT1XCH16, acmpVAInputAPORT1YCH17 = _ACMP_INPUTSEL_VASEL_APORT1YCH17, acmpVAInputAPORT1XCH18 = _ACMP_INPUTSEL_VASEL_APORT1XCH18, acmpVAInputAPORT1YCH19 = _ACMP_INPUTSEL_VASEL_APORT1YCH19, acmpVAInputAPORT1XCH20 = _ACMP_INPUTSEL_VASEL_APORT1XCH20, acmpVAInputAPORT1YCH21 = _ACMP_INPUTSEL_VASEL_APORT1YCH21, acmpVAInputAPORT1XCH22 = _ACMP_INPUTSEL_VASEL_APORT1XCH22, acmpVAInputAPORT1YCH23 = _ACMP_INPUTSEL_VASEL_APORT1YCH23, acmpVAInputAPORT1XCH24 = _ACMP_INPUTSEL_VASEL_APORT1XCH24, acmpVAInputAPORT1YCH25 = _ACMP_INPUTSEL_VASEL_APORT1YCH25, acmpVAInputAPORT1XCH26 = _ACMP_INPUTSEL_VASEL_APORT1XCH26, acmpVAInputAPORT1YCH27 = _ACMP_INPUTSEL_VASEL_APORT1YCH27, acmpVAInputAPORT1XCH28 = _ACMP_INPUTSEL_VASEL_APORT1XCH28, acmpVAInputAPORT1YCH29 = _ACMP_INPUTSEL_VASEL_APORT1YCH29, acmpVAInputAPORT1XCH30 = _ACMP_INPUTSEL_VASEL_APORT1XCH30, acmpVAInputAPORT1YCH31 = _ACMP_INPUTSEL_VASEL_APORT1YCH31 }
	ACMP input to the VA divider.

enum	ACMP_VBInput_TypeDef { acmpVBInput1V25 = _ACMP_INPUTSEL_VBSEL_1V25, acmpVBInput2V5 = _ACMP_INPUTSEL_VBSEL_2V5 }
	ACMP input to the VB divider.

enum	ACMP_VLPInput_Typedef { acmpVLPInputVADIV = _ACMP_INPUTSEL_VLPSEL_VADIV, acmpVLPInputVBDIV = _ACMP_INPUTSEL_VLPSEL_VBDIV }
	ACMP Low-Power Input Selection.

enum	ACMP_Channel_TypeDef { acmpInputAPORT0XCH0 = _ACMP_INPUTSEL_POSSEL_APORT0XCH0, acmpInputAPORT0XCH1 = _ACMP_INPUTSEL_POSSEL_APORT0XCH1, acmpInputAPORT0XCH2 = _ACMP_INPUTSEL_POSSEL_APORT0XCH2, acmpInputAPORT0XCH3 = _ACMP_INPUTSEL_POSSEL_APORT0XCH3, acmpInputAPORT0XCH4 = _ACMP_INPUTSEL_POSSEL_APORT0XCH4, acmpInputAPORT0XCH5 = _ACMP_INPUTSEL_POSSEL_APORT0XCH5, acmpInputAPORT0XCH6 = _ACMP_INPUTSEL_POSSEL_APORT0XCH6, acmpInputAPORT0XCH7 = _ACMP_INPUTSEL_POSSEL_APORT0XCH7, acmpInputAPORT0XCH8 = _ACMP_INPUTSEL_POSSEL_APORT0XCH8, acmpInputAPORT0XCH9 = _ACMP_INPUTSEL_POSSEL_APORT0XCH9, acmpInputAPORT0XCH10 = _ACMP_INPUTSEL_POSSEL_APORT0XCH10, acmpInputAPORT0XCH11 = _ACMP_INPUTSEL_POSSEL_APORT0XCH11, acmpInputAPORT0XCH12 = _ACMP_INPUTSEL_POSSEL_APORT0XCH12, acmpInputAPORT0XCH13 = _ACMP_INPUTSEL_POSSEL_APORT0XCH13, acmpInputAPORT0XCH14 = _ACMP_INPUTSEL_POSSEL_APORT0XCH14, acmpInputAPORT0XCH15 = _ACMP_INPUTSEL_POSSEL_APORT0XCH15, acmpInputAPORT0YCH0 = _ACMP_INPUTSEL_POSSEL_APORT0YCH0, acmpInputAPORT0YCH1 = _ACMP_INPUTSEL_POSSEL_APORT0YCH1, acmpInputAPORT0YCH2 = _ACMP_INPUTSEL_POSSEL_APORT0YCH2, acmpInputAPORT0YCH3 = _ACMP_INPUTSEL_POSSEL_APORT0YCH3, acmpInputAPORT0YCH4 = _ACMP_INPUTSEL_POSSEL_APORT0YCH4, acmpInputAPORT0YCH5 = _ACMP_INPUTSEL_POSSEL_APORT0YCH5, acmpInputAPORT0YCH6 = _ACMP_INPUTSEL_POSSEL_APORT0YCH6, acmpInputAPORT0YCH7 = _ACMP_INPUTSEL_POSSEL_APORT0YCH7, acmpInputAPORT0YCH8 = _ACMP_INPUTSEL_POSSEL_APORT0YCH8, acmpInputAPORT0YCH9 = _ACMP_INPUTSEL_POSSEL_APORT0YCH9, acmpInputAPORT0YCH10 = _ACMP_INPUTSEL_POSSEL_APORT0YCH10, acmpInputAPORT0YCH11 = _ACMP_INPUTSEL_POSSEL_APORT0YCH11, acmpInputAPORT0YCH12 = _ACMP_INPUTSEL_POSSEL_APORT0YCH12, acmpInputAPORT0YCH13 = _ACMP_INPUTSEL_POSSEL_APORT0YCH13, acmpInputAPORT0YCH14 = _ACMP_INPUTSEL_POSSEL_APORT0YCH14, acmpInputAPORT0YCH15 = _ACMP_INPUTSEL_POSSEL_APORT0YCH15, acmpInputAPORT1XCH0 = _ACMP_INPUTSEL_POSSEL_APORT1XCH0, acmpInputAPORT1YCH1 = _ACMP_INPUTSEL_POSSEL_APORT1YCH1, acmpInputAPORT1XCH2 = _ACMP_INPUTSEL_POSSEL_APORT1XCH2, acmpInputAPORT1YCH3 = _ACMP_INPUTSEL_POSSEL_APORT1YCH3, acmpInputAPORT1XCH4 = _ACMP_INPUTSEL_POSSEL_APORT1XCH4, acmpInputAPORT1YCH5 = _ACMP_INPUTSEL_POSSEL_APORT1YCH5, acmpInputAPORT1XCH6 = _ACMP_INPUTSEL_POSSEL_APORT1XCH6, acmpInputAPORT1YCH7 = _ACMP_INPUTSEL_POSSEL_APORT1YCH7, acmpInputAPORT1XCH8 = _ACMP_INPUTSEL_POSSEL_APORT1XCH8, acmpInputAPORT1YCH9 = _ACMP_INPUTSEL_POSSEL_APORT1YCH9, acmpInputAPORT1XCH10 = _ACMP_INPUTSEL_POSSEL_APORT1XCH10, acmpInputAPORT1YCH11 = _ACMP_INPUTSEL_POSSEL_APORT1YCH11, acmpInputAPORT1XCH12 = _ACMP_INPUTSEL_POSSEL_APORT1XCH12, acmpInputAPORT1YCH13 = _ACMP_INPUTSEL_POSSEL_APORT1YCH13, acmpInputAPORT1XCH14 = _ACMP_INPUTSEL_POSSEL_APORT1XCH14, acmpInputAPORT1YCH15 = _ACMP_INPUTSEL_POSSEL_APORT1YCH15, acmpInputAPORT1XCH16 = _ACMP_INPUTSEL_POSSEL_APORT1XCH16, acmpInputAPORT1YCH17 = _ACMP_INPUTSEL_POSSEL_APORT1YCH17, acmpInputAPORT1XCH18 = _ACMP_INPUTSEL_POSSEL_APORT1XCH18, acmpInputAPORT1YCH19 = _ACMP_INPUTSEL_POSSEL_APORT1YCH19, acmpInputAPORT1XCH20 = _ACMP_INPUTSEL_POSSEL_APORT1XCH20, acmpInputAPORT1YCH21 = _ACMP_INPUTSEL_POSSEL_APORT1YCH21, acmpInputAPORT1XCH22 = _ACMP_INPUTSEL_POSSEL_APORT1XCH22, acmpInputAPORT1YCH23 = _ACMP_INPUTSEL_POSSEL_APORT1YCH23, acmpInputAPORT1XCH24 = _ACMP_INPUTSEL_POSSEL_APORT1XCH24, acmpInputAPORT1YCH25 = _ACMP_INPUTSEL_POSSEL_APORT1YCH25, acmpInputAPORT1XCH26 = _ACMP_INPUTSEL_POSSEL_APORT1XCH26, acmpInputAPORT1YCH27 = _ACMP_INPUTSEL_POSSEL_APORT1YCH27, acmpInputAPORT1XCH28 = _ACMP_INPUTSEL_POSSEL_APORT1XCH28, acmpInputAPORT1YCH29 = _ACMP_INPUTSEL_POSSEL_APORT1YCH29, acmpInputAPORT1XCH30 = _ACMP_INPUTSEL_POSSEL_APORT1XCH30, acmpInputAPORT1YCH31 = _ACMP_INPUTSEL_POSSEL_APORT1YCH31, acmpInputAPORT2YCH0 = _ACMP_INPUTSEL_POSSEL_APORT2YCH0, acmpInputAPORT2XCH1 = _ACMP_INPUTSEL_POSSEL_APORT2XCH1, acmpInputAPORT2YCH2 = _ACMP_INPUTSEL_POSSEL_APORT2YCH2, acmpInputAPORT2XCH3 = _ACMP_INPUTSEL_POSSEL_APORT2XCH3, acmpInputAPORT2YCH4 = _ACMP_INPUTSEL_POSSEL_APORT2YCH4, acmpInputAPORT2XCH5 = _ACMP_INPUTSEL_POSSEL_APORT2XCH5, acmpInputAPORT2YCH6 = _ACMP_INPUTSEL_POSSEL_APORT2YCH6, acmpInputAPORT2XCH7 = _ACMP_INPUTSEL_POSSEL_APORT2XCH7, acmpInputAPORT2YCH8 = _ACMP_INPUTSEL_POSSEL_APORT2YCH8, acmpInputAPORT2XCH9 = _ACMP_INPUTSEL_POSSEL_APORT2XCH9, acmpInputAPORT2YCH10 = _ACMP_INPUTSEL_POSSEL_APORT2YCH10, acmpInputAPORT2XCH11 = _ACMP_INPUTSEL_POSSEL_APORT2XCH11, acmpInputAPORT2YCH12 = _ACMP_INPUTSEL_POSSEL_APORT2YCH12, acmpInputAPORT2XCH13 = _ACMP_INPUTSEL_POSSEL_APORT2XCH13, acmpInputAPORT2YCH14 = _ACMP_INPUTSEL_POSSEL_APORT2YCH14, acmpInputAPORT2XCH15 = _ACMP_INPUTSEL_POSSEL_APORT2XCH15, acmpInputAPORT2YCH16 = _ACMP_INPUTSEL_POSSEL_APORT2YCH16, acmpInputAPORT2XCH17 = _ACMP_INPUTSEL_POSSEL_APORT2XCH17, acmpInputAPORT2YCH18 = _ACMP_INPUTSEL_POSSEL_APORT2YCH18, acmpInputAPORT2XCH19 = _ACMP_INPUTSEL_POSSEL_APORT2XCH19, acmpInputAPORT2YCH20 = _ACMP_INPUTSEL_POSSEL_APORT2YCH20, acmpInputAPORT2XCH21 = _ACMP_INPUTSEL_POSSEL_APORT2XCH21, acmpInputAPORT2YCH22 = _ACMP_INPUTSEL_POSSEL_APORT2YCH22, acmpInputAPORT2XCH23 = _ACMP_INPUTSEL_POSSEL_APORT2XCH23, acmpInputAPORT2YCH24 = _ACMP_INPUTSEL_POSSEL_APORT2YCH24, acmpInputAPORT2XCH25 = _ACMP_INPUTSEL_POSSEL_APORT2XCH25, acmpInputAPORT2YCH26 = _ACMP_INPUTSEL_POSSEL_APORT2YCH26, acmpInputAPORT2XCH27 = _ACMP_INPUTSEL_POSSEL_APORT2XCH27, acmpInputAPORT2YCH28 = _ACMP_INPUTSEL_POSSEL_APORT2YCH28, acmpInputAPORT2XCH29 = _ACMP_INPUTSEL_POSSEL_APORT2XCH29, acmpInputAPORT2YCH30 = _ACMP_INPUTSEL_POSSEL_APORT2YCH30, acmpInputAPORT2XCH31 = _ACMP_INPUTSEL_POSSEL_APORT2XCH31, acmpInputAPORT3XCH0 = _ACMP_INPUTSEL_POSSEL_APORT3XCH0, acmpInputAPORT3YCH1 = _ACMP_INPUTSEL_POSSEL_APORT3YCH1, acmpInputAPORT3XCH2 = _ACMP_INPUTSEL_POSSEL_APORT3XCH2, acmpInputAPORT3YCH3 = _ACMP_INPUTSEL_POSSEL_APORT3YCH3, acmpInputAPORT3XCH4 = _ACMP_INPUTSEL_POSSEL_APORT3XCH4, acmpInputAPORT3YCH5 = _ACMP_INPUTSEL_POSSEL_APORT3YCH5, acmpInputAPORT3XCH6 = _ACMP_INPUTSEL_POSSEL_APORT3XCH6, acmpInputAPORT3YCH7 = _ACMP_INPUTSEL_POSSEL_APORT3YCH7, acmpInputAPORT3XCH8 = _ACMP_INPUTSEL_POSSEL_APORT3XCH8, acmpInputAPORT3YCH9 = _ACMP_INPUTSEL_POSSEL_APORT3YCH9, acmpInputAPORT3XCH10 = _ACMP_INPUTSEL_POSSEL_APORT3XCH10, acmpInputAPORT3YCH11 = _ACMP_INPUTSEL_POSSEL_APORT3YCH11, acmpInputAPORT3XCH12 = _ACMP_INPUTSEL_POSSEL_APORT3XCH12, acmpInputAPORT3YCH13 = _ACMP_INPUTSEL_POSSEL_APORT3YCH13, acmpInputAPORT3XCH14 = _ACMP_INPUTSEL_POSSEL_APORT3XCH14, acmpInputAPORT3YCH15 = _ACMP_INPUTSEL_POSSEL_APORT3YCH15, acmpInputAPORT3XCH16 = _ACMP_INPUTSEL_POSSEL_APORT3XCH16, acmpInputAPORT3YCH17 = _ACMP_INPUTSEL_POSSEL_APORT3YCH17, acmpInputAPORT3XCH18 = _ACMP_INPUTSEL_POSSEL_APORT3XCH18, acmpInputAPORT3YCH19 = _ACMP_INPUTSEL_POSSEL_APORT3YCH19, acmpInputAPORT3XCH20 = _ACMP_INPUTSEL_POSSEL_APORT3XCH20, acmpInputAPORT3YCH21 = _ACMP_INPUTSEL_POSSEL_APORT3YCH21, acmpInputAPORT3XCH22 = _ACMP_INPUTSEL_POSSEL_APORT3XCH22, acmpInputAPORT3YCH23 = _ACMP_INPUTSEL_POSSEL_APORT3YCH23, acmpInputAPORT3XCH24 = _ACMP_INPUTSEL_POSSEL_APORT3XCH24, acmpInputAPORT3YCH25 = _ACMP_INPUTSEL_POSSEL_APORT3YCH25, acmpInputAPORT3XCH26 = _ACMP_INPUTSEL_POSSEL_APORT3XCH26, acmpInputAPORT3YCH27 = _ACMP_INPUTSEL_POSSEL_APORT3YCH27, acmpInputAPORT3XCH28 = _ACMP_INPUTSEL_POSSEL_APORT3XCH28, acmpInputAPORT3YCH29 = _ACMP_INPUTSEL_POSSEL_APORT3YCH29, acmpInputAPORT3XCH30 = _ACMP_INPUTSEL_POSSEL_APORT3XCH30, acmpInputAPORT3YCH31 = _ACMP_INPUTSEL_POSSEL_APORT3YCH31, acmpInputAPORT4YCH0 = _ACMP_INPUTSEL_POSSEL_APORT4YCH0, acmpInputAPORT4XCH1 = _ACMP_INPUTSEL_POSSEL_APORT4XCH1, acmpInputAPORT4YCH2 = _ACMP_INPUTSEL_POSSEL_APORT4YCH2, acmpInputAPORT4XCH3 = _ACMP_INPUTSEL_POSSEL_APORT4XCH3, acmpInputAPORT4YCH4 = _ACMP_INPUTSEL_POSSEL_APORT4YCH4, acmpInputAPORT4XCH5 = _ACMP_INPUTSEL_POSSEL_APORT4XCH5, acmpInputAPORT4YCH6 = _ACMP_INPUTSEL_POSSEL_APORT4YCH6, acmpInputAPORT4XCH7 = _ACMP_INPUTSEL_POSSEL_APORT4XCH7, acmpInputAPORT4YCH8 = _ACMP_INPUTSEL_POSSEL_APORT4YCH8, acmpInputAPORT4XCH9 = _ACMP_INPUTSEL_POSSEL_APORT4XCH9, acmpInputAPORT4YCH10 = _ACMP_INPUTSEL_POSSEL_APORT4YCH10, acmpInputAPORT4XCH11 = _ACMP_INPUTSEL_POSSEL_APORT4XCH11, acmpInputAPORT4YCH12 = _ACMP_INPUTSEL_POSSEL_APORT4YCH12, acmpInputAPORT4XCH13 = _ACMP_INPUTSEL_POSSEL_APORT4XCH13, acmpInputAPORT4YCH16 = _ACMP_INPUTSEL_POSSEL_APORT4YCH16, acmpInputAPORT4XCH17 = _ACMP_INPUTSEL_POSSEL_APORT4XCH17, acmpInputAPORT4YCH18 = _ACMP_INPUTSEL_POSSEL_APORT4YCH18, acmpInputAPORT4XCH19 = _ACMP_INPUTSEL_POSSEL_APORT4XCH19, acmpInputAPORT4YCH20 = _ACMP_INPUTSEL_POSSEL_APORT4YCH20, acmpInputAPORT4XCH21 = _ACMP_INPUTSEL_POSSEL_APORT4XCH21, acmpInputAPORT4YCH22 = _ACMP_INPUTSEL_POSSEL_APORT4YCH22, acmpInputAPORT4XCH23 = _ACMP_INPUTSEL_POSSEL_APORT4XCH23, acmpInputAPORT4YCH24 = _ACMP_INPUTSEL_POSSEL_APORT4YCH24, acmpInputAPORT4XCH25 = _ACMP_INPUTSEL_POSSEL_APORT4XCH25, acmpInputAPORT4YCH26 = _ACMP_INPUTSEL_POSSEL_APORT4YCH26, acmpInputAPORT4XCH27 = _ACMP_INPUTSEL_POSSEL_APORT4XCH27, acmpInputAPORT4YCH28 = _ACMP_INPUTSEL_POSSEL_APORT4YCH28, acmpInputAPORT4XCH29 = _ACMP_INPUTSEL_POSSEL_APORT4XCH29, acmpInputAPORT4YCH30 = _ACMP_INPUTSEL_POSSEL_APORT4YCH30, acmpInputAPORT4YCH14 = _ACMP_INPUTSEL_POSSEL_APORT4YCH14, acmpInputAPORT4XCH15 = _ACMP_INPUTSEL_POSSEL_APORT4XCH15, acmpInputAPORT4XCH31 = _ACMP_INPUTSEL_POSSEL_APORT4XCH31, acmpInputDACOUT0 = _ACMP_INPUTSEL_POSSEL_DACOUT0, acmpInputDACOUT1 = _ACMP_INPUTSEL_POSSEL_DACOUT1, acmpInputVLP = _ACMP_INPUTSEL_POSSEL_VLP, acmpInputVBDIV = _ACMP_INPUTSEL_POSSEL_VBDIV, acmpInputVADIV = _ACMP_INPUTSEL_POSSEL_VADIV, acmpInputVDD = _ACMP_INPUTSEL_POSSEL_VDD, acmpInputVSS = _ACMP_INPUTSEL_POSSEL_VSS }
	ACMP Input Selection.

enum	ACMP_ExternalInput_Typedef { acmpExternalInputAPORT0X = _ACMP_EXTIFCTRL_APORTSEL_APORT0X, acmpExternalInputAPORT0Y = _ACMP_EXTIFCTRL_APORTSEL_APORT0Y, acmpExternalInputAPORT1X = _ACMP_EXTIFCTRL_APORTSEL_APORT1X, acmpExternalInputAPORT1Y = _ACMP_EXTIFCTRL_APORTSEL_APORT1Y, acmpExternalInputAPORT1XY = _ACMP_EXTIFCTRL_APORTSEL_APORT1XY, acmpExternalInputAPORT2X = _ACMP_EXTIFCTRL_APORTSEL_APORT2X, acmpExternalInputAPORT2Y = _ACMP_EXTIFCTRL_APORTSEL_APORT2Y, acmpExternalInputAPORT2YX = _ACMP_EXTIFCTRL_APORTSEL_APORT2YX, acmpExternalInputAPORT3X = _ACMP_EXTIFCTRL_APORTSEL_APORT3X, acmpExternalInputAPORT3Y = _ACMP_EXTIFCTRL_APORTSEL_APORT3Y, acmpExternalInputAPORT3XY = _ACMP_EXTIFCTRL_APORTSEL_APORT3XY, acmpExternalInputAPORT4X = _ACMP_EXTIFCTRL_APORTSEL_APORT4X, acmpExternalInputAPORT4Y = _ACMP_EXTIFCTRL_APORTSEL_APORT4Y, acmpExternalInputAPORT4YX = _ACMP_EXTIFCTRL_APORTSEL_APORT4YX }
	ACMP external input select.

Function Documentation

◆ ACMP_CapsenseInit()

void ACMP_CapsenseInit	(	ACMP_TypeDef *	`acmp,`
		const ACMP_CapsenseInit_TypeDef *	`init`
	)

Set up ACMP for use in capacitive sense applications.

This function sets up ACMP for use in capacitive sense applications. To use the capacitive sense functionality in the ACMP, use the PRS output of the ACMP module to count the number of oscillations in the capacitive sense circuit (possibly using a TIMER).

Note: A basic example of capacitive sensing can be found in the STK BSP (capsense demo).

Parameters

[in]	`acmp`	A pointer to the ACMP peripheral register block.
[in]	`init`	A pointer to the initialization structure used to configure ACMP for capacitive sensing operation.

◆ ACMP_CapsenseChannelSet()

void ACMP_CapsenseChannelSet	(	ACMP_TypeDef *	`acmp,`
		ACMP_Channel_TypeDef	`channel`
	)

Set the ACMP channel used for capacitive sensing.

Note: A basic example of capacitive sensing can be found in the STK BSP (capsense demo).

Parameters

[in]	`acmp`	A pointer to the ACMP peripheral register block.
[in]	`channel`	The ACMP channel to use for capacitive sensing (Possel).

◆ ACMP_ChannelSet()

void ACMP_ChannelSet	(	ACMP_TypeDef *	`acmp,`
		ACMP_Channel_TypeDef	`negSel,`
		ACMP_Channel_TypeDef	`posSel`
	)

Set which channels should be used in ACMP comparisons.

Parameters

[in]	`acmp`	A pointer to the ACMP peripheral register block.
	`negSel`	A channel to use on the negative input to the ACMP.
	`posSel`	A channel to use on the positive input to the ACMP.

◆ ACMP_Disable()

void ACMP_Disable ( ACMP_TypeDef * acmp )

Disable ACMP.

Parameters

[in] acmp A pointer to the ACMP peripheral register block.

◆ ACMP_Enable()

void ACMP_Enable ( ACMP_TypeDef * acmp )

Enable ACMP.

Parameters

[in] acmp A pointer to the ACMP peripheral register block.

◆ ACMP_ExternalInputSelect()

void ACMP_ExternalInputSelect	(	ACMP_TypeDef *	`acmp,`
		ACMP_ExternalInput_Typedef	`aport`
	)

Select and enable external input.

This is used when an external module needs to take control of the ACMP POSSEL field to configure the APORT input for the ACMP. Modules, such as LESENSE, use this to change the ACMP input during a scan sequence.

Parameters

[in]	`acmp`	A pointer to the ACMP peripheral register block.
[in]	`aport`	This parameter decides which APORT(s) the ACMP will use when it's controlled by an external module.

◆ ACMP_GPIOSetup()

void ACMP_GPIOSetup	(	ACMP_TypeDef *	`acmp,`
		uint32_t	`location,`
		bool	`enable,`
		bool	`invert`
	)

Set up GPIO output from ACMP.

Note

GPIO must be enabled in the CMU before this function call, i.e.,

CMU_ClockEnable(cmuClock_GPIO, true);

Parameters

[in]	`acmp`	A pointer to the ACMP peripheral register block.
	`location`	The pin location to use. See the data sheet for location to pin mappings.
	`enable`	Enable or disable pin output.
	`invert`	Invert output.

◆ ACMP_Init()

void ACMP_Init	(	ACMP_TypeDef *	`acmp,`
		const ACMP_Init_TypeDef *	`init`
	)

Initialize ACMP.

Parameters

[in]	`acmp`	A pointer to the ACMP peripheral register block.
[in]	`init`	A pointer to the initialization structure used to configure ACMP.

◆ ACMP_Reset()

void ACMP_Reset ( ACMP_TypeDef * acmp )

Reset ACMP to the same state that it was in after a hardware reset.

Note: The GPIO ACMP ROUTE register is NOT reset by this function to allow for centralized setup of this feature.; The peripheral may be enabled and disabled during reset.

Parameters

[in] acmp A pointer to the ACMP peripheral register block.

◆ ACMP_VASetup()

void ACMP_VASetup	(	ACMP_TypeDef *	`acmp,`
		const ACMP_VAConfig_TypeDef *	`vaconfig`
	)

Set up the VA source.

Parameters

[in]	`acmp`	A pointer to the ACMP peripheral register block.
[in]	`vaconfig`	A pointer to the structure used to configure the VA source. This structure contains the input source and the 2 divider values.

◆ ACMP_VBSetup()

void ACMP_VBSetup	(	ACMP_TypeDef *	`acmp,`
		const ACMP_VBConfig_TypeDef *	`vbconfig`
	)

Set up the VB Source.

Parameters

[in]	`acmp`	A pointer to the ACMP peripheral register block.
[in]	`vbconfig`	A pointer to the structure used to configure the VB source. This structure contains the input source and the 2 divider values.

◆ ACMP_IntClear()

void ACMP_IntClear	(	ACMP_TypeDef *	`acmp,`
		uint32_t	`flags`
	)

inline

Clear one or more pending ACMP interrupts.

Parameters

[in]	`acmp`	A pointer to the ACMP peripheral register block.
[in]	`flags`	Pending ACMP interrupt source to clear. Use a bitwise logic OR combination of valid interrupt flags for the ACMP module. The flags can be, for instance, ACMP_IFC_EDGE or ACMP_IFC_WARMUP.

◆ ACMP_IntDisable()

void ACMP_IntDisable	(	ACMP_TypeDef *	`acmp,`
		uint32_t	`flags`
	)

inline

Disable one or more ACMP interrupts.

Parameters

[in]	`acmp`	A pointer to the ACMP peripheral register block.
[in]	`flags`	ACMP interrupt sources to disable. Use a bitwise logic OR combination of valid interrupt flags for the ACMP module. The flags can be, for instance, ACMP_IEN_EDGE or ACMP_IEN_WARMUP.

◆ ACMP_IntEnable()

void ACMP_IntEnable	(	ACMP_TypeDef *	`acmp,`
		uint32_t	`flags`
	)

inline

Enable one or more ACMP interrupts.

Note: Depending on the use, a pending interrupt may already be set prior to enabling the interrupt. Consider using ACMP_IntClear() prior to enabling if a pending interrupt should be ignored.

Parameters

[in]	`acmp`	A pointer to the ACMP peripheral register block.
[in]	`flags`	ACMP interrupt sources to enable. Use a bitwise logic OR combination of valid interrupt flags for the ACMP module. The flags can be, for instance, ACMP_IEN_EDGE or ACMP_IEN_WARMUP.

◆ ACMP_IntGet()

uint32_t ACMP_IntGet ( ACMP_TypeDef * acmp )

inline

Get pending ACMP interrupt flags.

Note: This function does not clear event bits.

Parameters

[in] acmp A pointer to the ACMP peripheral register block.

Returns: Pending ACMP interrupt sources. A bitwise logic OR combination of valid interrupt flags for the ACMP module. The pending interrupt sources can be, for instance, ACMP_IF_EDGE or ACMP_IF_WARMUP.

◆ ACMP_IntGetEnabled()

uint32_t ACMP_IntGetEnabled ( ACMP_TypeDef * acmp )

inline

Get enabled and pending ACMP interrupt flags.

Useful for handling more interrupt sources in the same interrupt handler.

Parameters

[in] acmp A pointer to the ACMP peripheral register block.

Note: This function does not clear interrupt flags.

Returns

Pending and enabled ACMP interrupt sources. The return value is the bitwise AND combination of

the OR combination of enabled interrupt sources in ACMPx_IEN_nnn register (ACMPx_IEN_nnn) and
the OR combination of valid interrupt flags of the ACMP module (ACMPx_IF_nnn).

◆ ACMP_IntSet()

void ACMP_IntSet	(	ACMP_TypeDef *	`acmp,`
		uint32_t	`flags`
	)

inline

Set one or more pending ACMP interrupts from software.

Parameters

[in]	`acmp`	A pointer to the ACMP peripheral register block.
[in]	`flags`	ACMP interrupt sources to set as pending. Use a bitwise logic OR combination of valid interrupt flags for the ACMP module. The flags can be, for instance, ACMP_IFS_EDGE or ACMP_IFS_WARMUP.

Macro Definition Documentation

◆ ACMP_CAPSENSE_INIT_DEFAULT

#define ACMP_CAPSENSE_INIT_DEFAULT

Value:

         {                                                                           \
        
         false,
         
          /* Don't use fullBias to lower power consumption. */
         
         \
        
         0x20,
         
          /* Using biasProg value of 0x20 (32). */
         
         \
        
         acmpHysteresisLevel8,
         
          /* Use hysteresis level 8 when ACMP output is 0. */
         
         \
        
         acmpHysteresisLevel8,
         
          /* Use hysteresis level 8 when ACMP output is 1. */
         
         \
        
         acmpResistor5,
         
          /* Use internal resistor value 5. */
         
         \
        
         0x30,
         
          /* VDD level high. */
         
         \
        
         0x10,
         
          /* VDD level low. */
         
         \
        
         true
         
          /* Enable after initialization. */
         
         \
        
         }

A default configuration for capacitive sense mode initialization.

◆ ACMP_INIT_DEFAULT

#define ACMP_INIT_DEFAULT

Value:

         {                                                                         \
        
         false,
         
          /* fullBias */
         
         \
        
         0x7,
         
          /* biasProg */
         
         \
        
         false,
         
          /* No interrupt on falling edge. */
         
         \
        
         false,
         
          /* No interrupt on rising edge. */
         
         \
        
         acmpInputRangeFull,
         
          /* Input range from 0 to VDD. */
         
         \
        
         acmpAccuracyLow,
         
          /* Low accuracy, less current usage. */
         
         \
        
         acmpPowerSourceAvdd,
         
          /* Use the AVDD supply. */
         
         \
        
         acmpHysteresisLevel5,
         
          /* Use hysteresis level 5 when output is 0 */
         
         \
        
         acmpHysteresisLevel5,
         
          /* Use hysteresis level 5 when output is 1 */
         
         \
        
         acmpVLPInputVADIV,
         
          /* Use VADIV as the VLP input source. */
         
         \
        
         false,
         
          /* Output 0 when ACMP is inactive. */
         
         \
        
         true
         
          /* Enable after init. */
         
         \
        
         }

Default configuration for ACMP regular initialization.

◆ ACMP_VACONFIG_DEFAULT

#define ACMP_VACONFIG_DEFAULT

Value:

         {                                                                         \
        
         acmpVAInputVDD,
         
          /* Use VDD as VA voltage input source. */
         
         \
        
         63,
         
          /* No division of the VA source when ACMP output is 0. */
         
         \
        
         63,
         
          /* No division of the VA source when ACMP output is 1. */
         
         \
        
         }

VA default configuration.

◆ ACMP_VBCONFIG_DEFAULT

#define ACMP_VBCONFIG_DEFAULT

Value:

         {                                                                          \
        
         acmpVBInput1V25,
         
          /* Use 1.25 V as VB voltage input source. */
         
         \
        
         63,
         
          /* No division of the VB source when ACMP output is 0. */
         
         \
        
         63,
         
          /* No division of the VB source when ACMP output is 1. */
         
         \
        
         }

VB default configuration.

Enumeration Type Documentation

◆ ACMP_CapsenseResistor_TypeDef

enum ACMP_CapsenseResistor_TypeDef

Resistor values used for the internal capacitive sense resistor.

See data sheet for your device for details on each resistor value.

Enumerator
acmpResistor0	Resistor value 0.
acmpResistor1	Resistor value 1.
acmpResistor2	Resistor value 2.
acmpResistor3	Resistor value 3.
acmpResistor4	Resistor value 4.
acmpResistor5	Resistor value 5.
acmpResistor6	Resistor value 6.
acmpResistor7	Resistor value 7.

◆ ACMP_HysteresisLevel_TypeDef

enum ACMP_HysteresisLevel_TypeDef

Hysteresis level.

See data sheet for your device for details on each level.

Enumerator
acmpHysteresisLevel0	Hysteresis level 0.
acmpHysteresisLevel1	Hysteresis level 1.
acmpHysteresisLevel2	Hysteresis level 2.
acmpHysteresisLevel3	Hysteresis level 3.
acmpHysteresisLevel4	Hysteresis level 4.
acmpHysteresisLevel5	Hysteresis level 5.
acmpHysteresisLevel6	Hysteresis level 6.
acmpHysteresisLevel7	Hysteresis level 7.
acmpHysteresisLevel8	Hysteresis level 8.
acmpHysteresisLevel9	Hysteresis level 9.
acmpHysteresisLevel10	Hysteresis level 10.
acmpHysteresisLevel11	Hysteresis level 11.
acmpHysteresisLevel12	Hysteresis level 12.
acmpHysteresisLevel13	Hysteresis level 13.
acmpHysteresisLevel14	Hysteresis level 14.
acmpHysteresisLevel15	Hysteresis level 15.

◆ ACMP_InputRange_TypeDef

enum ACMP_InputRange_TypeDef

Adjust ACMP performance for a given input voltage range.

Enumerator
acmpInputRangeFull	Input can be from 0 to VDD.
acmpInputRangeHigh	Input will always be greater than VDD/2.
acmpInputRangeLow	Input will always be less than VDD/2.

◆ ACMP_PowerSource_TypeDef

enum ACMP_PowerSource_TypeDef

ACMP Power source.

Enumerator
acmpPowerSourceAvdd	Power ACMP using the AVDD supply.
acmpPowerSourceDvdd	Power ACMP using the DVDD supply.
acmpPowerSourceIOVdd0	Power ACMP using the IOVDD/IOVDD0 supply.
acmpPowerSourceIOVdd1	Power ACMP using the IOVDD1 supply (if the part has two I/O voltages).

◆ ACMP_Accuracy_TypeDef

enum ACMP_Accuracy_TypeDef

ACMP accuracy mode.

Enumerator
acmpAccuracyLow	Low-accuracy mode which consumes less current.
acmpAccuracyHigh	High-accuracy mode which consumes more current.

◆ ACMP_VAInput_TypeDef

enum ACMP_VAInput_TypeDef

ACMP input to the VA divider.

This enumeration is used to select the input for the VA Divider.

Enumerator
acmpVAInputVDD	Select VDD for the VA divider.
acmpVAInputAPORT2YCH0	Select APORT2Y CHannel 0 for the VA divider.
acmpVAInputAPORT2YCH2	Select APORT2Y CHannel 2 for the VA divider.
acmpVAInputAPORT2YCH4	Select APORT2Y CHannel 4 for the VA divider.
acmpVAInputAPORT2YCH6	Select APORT2Y CHannel 6 for the VA divider.
acmpVAInputAPORT2YCH8	Select APORT2Y CHannel 8 for the VA divider.
acmpVAInputAPORT2YCH10	Select APORT2Y CHannel 10 for the VA divider.
acmpVAInputAPORT2YCH12	Select APORT2Y CHannel 12 for the VA divider.
acmpVAInputAPORT2YCH14	Select APORT2Y CHannel 14 for the VA divider.
acmpVAInputAPORT2YCH16	Select APORT2Y CHannel 16 for the VA divider.
acmpVAInputAPORT2YCH18	Select APORT2Y CHannel 18 for the VA divider.
acmpVAInputAPORT2YCH20	Select APORT2Y CHannel 20 for the VA divider.
acmpVAInputAPORT2YCH22	Select APORT2Y CHannel 22 for the VA divider.
acmpVAInputAPORT2YCH24	Select APORT2Y CHannel 24 for the VA divider.
acmpVAInputAPORT2YCH26	Select APORT2Y CHannel 26 for the VA divider.
acmpVAInputAPORT2YCH28	Select APORT2Y CHannel 28 for the VA divider.
acmpVAInputAPORT2YCH30	Select APORT2Y CHannel 30 for the VA divider.
acmpVAInputAPORT1XCH0	Select APORT1X CHannel 0 for the VA divider.
acmpVAInputAPORT1YCH1	Select APORT1Y CHannel 1 for the VA divider.
acmpVAInputAPORT1XCH2	Select APORT1X CHannel 2 for the VA divider.
acmpVAInputAPORT1YCH3	Select APORT1Y CHannel 3 for the VA divider.
acmpVAInputAPORT1XCH4	Select APORT1X CHannel 4 for the VA divider.
acmpVAInputAPORT1YCH5	Select APORT1Y CHannel 5 for the VA divider.
acmpVAInputAPORT1XCH6	Select APORT1X CHannel 6 for the VA divider.
acmpVAInputAPORT1YCH7	Select APORT1Y CHannel 7 for the VA divider.
acmpVAInputAPORT1XCH8	Select APORT1X CHannel 8 for the VA divider.
acmpVAInputAPORT1YCH9	Select APORT1Y CHannel 9 for the VA divider.
acmpVAInputAPORT1XCH10	Select APORT1X CHannel 10 for the VA divider.
acmpVAInputAPORT1YCH11	Select APORT1Y CHannel 11 for the VA divider.
acmpVAInputAPORT1XCH12	Select APORT1X CHannel 12 for the VA divider.
acmpVAInputAPORT1YCH13	Select APORT1Y CHannel 13 for the VA divider.
acmpVAInputAPORT1XCH14	Select APORT1X CHannel 14 for the VA divider.
acmpVAInputAPORT1YCH15	Select APORT1Y CHannel 15 for the VA divider.
acmpVAInputAPORT1XCH16	Select APORT1X CHannel 16 for the VA divider.
acmpVAInputAPORT1YCH17	Select APORT1Y CHannel 17 for the VA divider.
acmpVAInputAPORT1XCH18	Select APORT1X CHannel 18 for the VA divider.
acmpVAInputAPORT1YCH19	Select APORT1Y CHannel 19 for the VA divider.
acmpVAInputAPORT1XCH20	Select APORT1X CHannel 20 for the VA divider.
acmpVAInputAPORT1YCH21	Select APORT1Y CHannel 21 for the VA divider.
acmpVAInputAPORT1XCH22	Select APORT1X CHannel 22 for the VA divider.
acmpVAInputAPORT1YCH23	Select APORT1Y CHannel 23 for the VA divider.
acmpVAInputAPORT1XCH24	Select APORT1X CHannel 24 for the VA divider.
acmpVAInputAPORT1YCH25	Select APORT1Y CHannel 25 for the VA divider.
acmpVAInputAPORT1XCH26	Select APORT1X CHannel 26 for the VA divider.
acmpVAInputAPORT1YCH27	Select APORT1Y CHannel 27 for the VA divider.
acmpVAInputAPORT1XCH28	Select APORT1X CHannel 28 for the VA divider.
acmpVAInputAPORT1YCH29	Select APORT1Y CHannel 29 for the VA divider.
acmpVAInputAPORT1XCH30	Select APORT1X CHannel 30 for the VA divider.
acmpVAInputAPORT1YCH31	Select APORT1Y CHannel 31 for the VA divider.

◆ ACMP_VBInput_TypeDef

enum ACMP_VBInput_TypeDef

ACMP input to the VB divider.

This enumeration is used to select the input for the VB divider.

Enumerator
acmpVBInput1V25	Mode 1V25 for ACMP_INPUTSEL.
acmpVBInput2V5	Mode 2V5 for ACMP_INPUTSEL.

◆ ACMP_VLPInput_Typedef

enum ACMP_VLPInput_Typedef

ACMP Low-Power Input Selection.

Enumerator
acmpVLPInputVADIV	Mode VADIV for ACMP_INPUTSEL.
acmpVLPInputVBDIV	Mode VBDIV for ACMP_INPUTSEL.

◆ ACMP_Channel_TypeDef

enum ACMP_Channel_TypeDef

ACMP Input Selection.

Enumerator
acmpInputAPORT0XCH0	Select Dedicated APORT0X CHannel 0.
acmpInputAPORT0XCH1	Select Dedicated APORT0X CHannel 1.
acmpInputAPORT0XCH2	Select Dedicated APORT0X CHannel 2.
acmpInputAPORT0XCH3	Select Dedicated APORT0X CHannel 3.
acmpInputAPORT0XCH4	Select Dedicated APORT0X CHannel 4.
acmpInputAPORT0XCH5	Select Dedicated APORT0X CHannel 5.
acmpInputAPORT0XCH6	Select Dedicated APORT0X CHannel 6.
acmpInputAPORT0XCH7	Select Dedicated APORT0X CHannel 7.
acmpInputAPORT0XCH8	Select Dedicated APORT0X CHannel 8.
acmpInputAPORT0XCH9	Select Dedicated APORT0X CHannel 9.
acmpInputAPORT0XCH10	Select Dedicated APORT0X CHannel 10.
acmpInputAPORT0XCH11	Select Dedicated APORT0X CHannel 11.
acmpInputAPORT0XCH12	Select Dedicated APORT0X CHannel 12.
acmpInputAPORT0XCH13	Select Dedicated APORT0X CHannel 13.
acmpInputAPORT0XCH14	Select Dedicated APORT0X CHannel 14.
acmpInputAPORT0XCH15	Select Dedicated APORT0X CHannel 15.
acmpInputAPORT0YCH0	Select Dedicated APORT0Y CHannel 0.
acmpInputAPORT0YCH1	Select Dedicated APORT0Y CHannel 1.
acmpInputAPORT0YCH2	Select Dedicated APORT0Y CHannel 2.
acmpInputAPORT0YCH3	Select Dedicated APORT0Y CHannel 3.
acmpInputAPORT0YCH4	Select Dedicated APORT0Y CHannel 4.
acmpInputAPORT0YCH5	Select Dedicated APORT0Y CHannel 5.
acmpInputAPORT0YCH6	Select Dedicated APORT0Y CHannel 6.
acmpInputAPORT0YCH7	Select Dedicated APORT0Y CHannel 7.
acmpInputAPORT0YCH8	Select Dedicated APORT0Y CHannel 8.
acmpInputAPORT0YCH9	Select Dedicated APORT0Y CHannel 9.
acmpInputAPORT0YCH10	Select Dedicated APORT0Y CHannel 10.
acmpInputAPORT0YCH11	Select Dedicated APORT0Y CHannel 11.
acmpInputAPORT0YCH12	Select Dedicated APORT0Y CHannel 12.
acmpInputAPORT0YCH13	Select Dedicated APORT0Y CHannel 13.
acmpInputAPORT0YCH14	Select Dedicated APORT0Y CHannel 14.
acmpInputAPORT0YCH15	Select Dedicated APORT0Y CHannel 15.
acmpInputAPORT1XCH0	Select Dedicated APORT1X CHannel 0.
acmpInputAPORT1YCH1	Select Dedicated APORT1Y CHannel 1.
acmpInputAPORT1XCH2	Select Dedicated APORT1X CHannel 2.
acmpInputAPORT1YCH3	Select Dedicated APORT1Y CHannel 3.
acmpInputAPORT1XCH4	Select Dedicated APORT1X CHannel 4.
acmpInputAPORT1YCH5	Select Dedicated APORT1Y CHannel 5.
acmpInputAPORT1XCH6	Select Dedicated APORT1X CHannel 6.
acmpInputAPORT1YCH7	Select Dedicated APORT1Y CHannel 7.
acmpInputAPORT1XCH8	Select Dedicated APORT1X CHannel 8.
acmpInputAPORT1YCH9	Select Dedicated APORT1Y CHannel 9.
acmpInputAPORT1XCH10	Select Dedicated APORT1X CHannel 10.
acmpInputAPORT1YCH11	Select Dedicated APORT1Y CHannel 11.
acmpInputAPORT1XCH12	Select Dedicated APORT1X CHannel 12.
acmpInputAPORT1YCH13	Select Dedicated APORT1Y CHannel 13.
acmpInputAPORT1XCH14	Select Dedicated APORT1X CHannel 14.
acmpInputAPORT1YCH15	Select Dedicated APORT1Y CHannel 15.
acmpInputAPORT1XCH16	Select Dedicated APORT1X CHannel 16.
acmpInputAPORT1YCH17	Select Dedicated APORT1Y CHannel 17.
acmpInputAPORT1XCH18	Select Dedicated APORT1X CHannel 18.
acmpInputAPORT1YCH19	Select Dedicated APORT1Y CHannel 19.
acmpInputAPORT1XCH20	Select Dedicated APORT1X CHannel 20.
acmpInputAPORT1YCH21	Select Dedicated APORT1Y CHannel 21.
acmpInputAPORT1XCH22	Select Dedicated APORT1X CHannel 22.
acmpInputAPORT1YCH23	Select Dedicated APORT1Y CHannel 23.
acmpInputAPORT1XCH24	Select Dedicated APORT1X CHannel 24.
acmpInputAPORT1YCH25	Select Dedicated APORT1Y CHannel 25.
acmpInputAPORT1XCH26	Select Dedicated APORT1X CHannel 26.
acmpInputAPORT1YCH27	Select Dedicated APORT1Y CHannel 27.
acmpInputAPORT1XCH28	Select Dedicated APORT1X CHannel 28.
acmpInputAPORT1YCH29	Select Dedicated APORT1Y CHannel 29.
acmpInputAPORT1XCH30	Select Dedicated APORT1X CHannel 30.
acmpInputAPORT1YCH31	Select Dedicated APORT1Y CHannel 31.
acmpInputAPORT2YCH0	Select Dedicated APORT2Y CHannel 0.
acmpInputAPORT2XCH1	Select Dedicated APORT2X CHannel 1.
acmpInputAPORT2YCH2	Select Dedicated APORT2Y CHannel 2.
acmpInputAPORT2XCH3	Select Dedicated APORT2X CHannel 3.
acmpInputAPORT2YCH4	Select Dedicated APORT2Y CHannel 4.
acmpInputAPORT2XCH5	Select Dedicated APORT2X CHannel 5.
acmpInputAPORT2YCH6	Select Dedicated APORT2Y CHannel 6.
acmpInputAPORT2XCH7	Select Dedicated APORT2X CHannel 7.
acmpInputAPORT2YCH8	Select Dedicated APORT2Y CHannel 8.
acmpInputAPORT2XCH9	Select Dedicated APORT2X CHannel 9.
acmpInputAPORT2YCH10	Select Dedicated APORT2Y CHannel 10.
acmpInputAPORT2XCH11	Select Dedicated APORT2X CHannel 11.
acmpInputAPORT2YCH12	Select Dedicated APORT2Y CHannel 12.
acmpInputAPORT2XCH13	Select Dedicated APORT2X CHannel 13.
acmpInputAPORT2YCH14	Select Dedicated APORT2Y CHannel 14.
acmpInputAPORT2XCH15	Select Dedicated APORT2X CHannel 15.
acmpInputAPORT2YCH16	Select Dedicated APORT2Y CHannel 16.
acmpInputAPORT2XCH17	Select Dedicated APORT2X CHannel 17.
acmpInputAPORT2YCH18	Select Dedicated APORT2Y CHannel 18.
acmpInputAPORT2XCH19	Select Dedicated APORT2X CHannel 19.
acmpInputAPORT2YCH20	Select Dedicated APORT2Y CHannel 20.
acmpInputAPORT2XCH21	Select Dedicated APORT2X CHannel 21.
acmpInputAPORT2YCH22	Select Dedicated APORT2Y CHannel 22.
acmpInputAPORT2XCH23	Select Dedicated APORT2X CHannel 23.
acmpInputAPORT2YCH24	Select Dedicated APORT2Y CHannel 24.
acmpInputAPORT2XCH25	Select Dedicated APORT2X CHannel 25.
acmpInputAPORT2YCH26	Select Dedicated APORT2Y CHannel 26.
acmpInputAPORT2XCH27	Select Dedicated APORT2X CHannel 27.
acmpInputAPORT2YCH28	Select Dedicated APORT2Y CHannel 28.
acmpInputAPORT2XCH29	Select Dedicated APORT2X CHannel 29.
acmpInputAPORT2YCH30	Select Dedicated APORT2Y CHannel 30.
acmpInputAPORT2XCH31	Select Dedicated APORT2X CHannel 31.
acmpInputAPORT3XCH0	Select Dedicated APORT3X CHannel 0.
acmpInputAPORT3YCH1	Select Dedicated APORT3Y CHannel 1.
acmpInputAPORT3XCH2	Select Dedicated APORT3X CHannel 2.
acmpInputAPORT3YCH3	Select Dedicated APORT3Y CHannel 3.
acmpInputAPORT3XCH4	Select Dedicated APORT3X CHannel 4.
acmpInputAPORT3YCH5	Select Dedicated APORT3Y CHannel 5.
acmpInputAPORT3XCH6	Select Dedicated APORT3X CHannel 6.
acmpInputAPORT3YCH7	Select Dedicated APORT3Y CHannel 7.
acmpInputAPORT3XCH8	Select Dedicated APORT3X CHannel 8.
acmpInputAPORT3YCH9	Select Dedicated APORT3Y CHannel 9.
acmpInputAPORT3XCH10	Select Dedicated APORT3X CHannel 10.
acmpInputAPORT3YCH11	Select Dedicated APORT3Y CHannel 11.
acmpInputAPORT3XCH12	Select Dedicated APORT3X CHannel 12.
acmpInputAPORT3YCH13	Select Dedicated APORT3Y CHannel 13.
acmpInputAPORT3XCH14	Select Dedicated APORT3X CHannel 14.
acmpInputAPORT3YCH15	Select Dedicated APORT3Y CHannel 15.
acmpInputAPORT3XCH16	Select Dedicated APORT3X CHannel 16.
acmpInputAPORT3YCH17	Select Dedicated APORT3Y CHannel 17.
acmpInputAPORT3XCH18	Select Dedicated APORT3X CHannel 18.
acmpInputAPORT3YCH19	Select Dedicated APORT3Y CHannel 19.
acmpInputAPORT3XCH20	Select Dedicated APORT3X CHannel 20.
acmpInputAPORT3YCH21	Select Dedicated APORT3Y CHannel 21.
acmpInputAPORT3XCH22	Select Dedicated APORT3X CHannel 22.
acmpInputAPORT3YCH23	Select Dedicated APORT3Y CHannel 23.
acmpInputAPORT3XCH24	Select Dedicated APORT3X CHannel 24.
acmpInputAPORT3YCH25	Select Dedicated APORT3Y CHannel 25.
acmpInputAPORT3XCH26	Select Dedicated APORT3X CHannel 26.
acmpInputAPORT3YCH27	Select Dedicated APORT3Y CHannel 27.
acmpInputAPORT3XCH28	Select Dedicated APORT3X CHannel 28.
acmpInputAPORT3YCH29	Select Dedicated APORT3Y CHannel 29.
acmpInputAPORT3XCH30	Select Dedicated APORT3X CHannel 30.
acmpInputAPORT3YCH31	Select Dedicated APORT3Y CHannel 31.
acmpInputAPORT4YCH0	Select Dedicated APORT4Y CHannel 0.
acmpInputAPORT4XCH1	Select Dedicated APORT4X CHannel 1.
acmpInputAPORT4YCH2	Select Dedicated APORT4Y CHannel 2.
acmpInputAPORT4XCH3	Select Dedicated APORT4X CHannel 3.
acmpInputAPORT4YCH4	Select Dedicated APORT4Y CHannel 4.
acmpInputAPORT4XCH5	Select Dedicated APORT4X CHannel 5.
acmpInputAPORT4YCH6	Select Dedicated APORT4Y CHannel 6.
acmpInputAPORT4XCH7	Select Dedicated APORT4X CHannel 7.
acmpInputAPORT4YCH8	Select Dedicated APORT4Y CHannel 8.
acmpInputAPORT4XCH9	Select Dedicated APORT4X CHannel 9.
acmpInputAPORT4YCH10	Select Dedicated APORT4Y CHannel 10.
acmpInputAPORT4XCH11	Select Dedicated APORT4X CHannel 11.
acmpInputAPORT4YCH12	Select Dedicated APORT4Y CHannel 12.
acmpInputAPORT4XCH13	Select Dedicated APORT4X CHannel 13.
acmpInputAPORT4YCH16	Select Dedicated APORT4Y CHannel 14.
acmpInputAPORT4XCH17	Select Dedicated APORT4X CHannel 15.
acmpInputAPORT4YCH18	Select Dedicated APORT4Y CHannel 16.
acmpInputAPORT4XCH19	Select Dedicated APORT4X CHannel 17.
acmpInputAPORT4YCH20	Select Dedicated APORT4Y CHannel 18.
acmpInputAPORT4XCH21	Select Dedicated APORT4X CHannel 19.
acmpInputAPORT4YCH22	Select Dedicated APORT4Y CHannel 20.
acmpInputAPORT4XCH23	Select Dedicated APORT4X CHannel 21.
acmpInputAPORT4YCH24	Select Dedicated APORT4Y CHannel 22.
acmpInputAPORT4XCH25	Select Dedicated APORT4X CHannel 23.
acmpInputAPORT4YCH26	Select Dedicated APORT4Y CHannel 24.
acmpInputAPORT4XCH27	Select Dedicated APORT4X CHannel 25.
acmpInputAPORT4YCH28	Select Dedicated APORT4Y CHannel 26.
acmpInputAPORT4XCH29	Select Dedicated APORT4X CHannel 27.
acmpInputAPORT4YCH30	Select Dedicated APORT4Y CHannel 28.
acmpInputAPORT4YCH14	Select Dedicated APORT4X CHannel 29.
acmpInputAPORT4XCH15	Select Dedicated APORT4Y CHannel 30.
acmpInputAPORT4XCH31	Select Dedicated APORT4X CHannel 31.
acmpInputDACOUT0	Select DAC Channel 0 Output.
acmpInputDACOUT1	Select DAC Channel 1 Output.
acmpInputVLP	Select Low-Power Sampled Voltage.
acmpInputVBDIV	Select Divided VB Voltage.
acmpInputVADIV	Select Divided VA Voltage.
acmpInputVDD	ACMPVDD as selected via PWRSEL.
acmpInputVSS	Select VSS.

◆ ACMP_ExternalInput_Typedef

enum ACMP_ExternalInput_Typedef

ACMP external input select.

This type is used to select which APORT is used by an external module, such as LESENSE, when it's taking control over the ACMP input.

Enumerator
acmpExternalInputAPORT0X	Select APORT0X as an external input.
acmpExternalInputAPORT0Y	Select APORT0Y as an external input.
acmpExternalInputAPORT1X	Select APORT1X as an external input.
acmpExternalInputAPORT1Y	Select APORT1Y as an external input.
acmpExternalInputAPORT1XY	Select APORT1XY as an external input.
acmpExternalInputAPORT2X	Select APORT2X as an external input.
acmpExternalInputAPORT2Y	Select APORT2Y as an external input.
acmpExternalInputAPORT2YX	Select APORT2YX as an external input.
acmpExternalInputAPORT3X	Select APORT3X as an external input.
acmpExternalInputAPORT3Y	Select APORT3Y as an external input.
acmpExternalInputAPORT3XY	Select APORT3XY as an external input.
acmpExternalInputAPORT4X	Select APORT4X as an external input.
acmpExternalInputAPORT4Y	Select APORT4Y as an external input.
acmpExternalInputAPORT4YX	Select APORT4YX as an external input.

ACMP - Analog Comparator

Description

Data Structures

Functions

Macros

Enumerations

Function Documentation

◆ ACMP_CapsenseInit()

◆ ACMP_CapsenseChannelSet()

◆ ACMP_ChannelSet()

◆ ACMP_Disable()

◆ ACMP_Enable()

◆ ACMP_ExternalInputSelect()

◆ ACMP_GPIOSetup()

◆ ACMP_Init()

◆ ACMP_Reset()

◆ ACMP_VASetup()

◆ ACMP_VBSetup()

◆ ACMP_IntClear()

◆ ACMP_IntDisable()

◆ ACMP_IntEnable()

◆ ACMP_IntGet()

◆ ACMP_IntGetEnabled()

◆ ACMP_IntSet()

Macro Definition Documentation

◆ ACMP_CAPSENSE_INIT_DEFAULT

◆ ACMP_INIT_DEFAULT

◆ ACMP_VACONFIG_DEFAULT

◆ ACMP_VBCONFIG_DEFAULT

Enumeration Type Documentation

◆ ACMP_CapsenseResistor_TypeDef

◆ ACMP_HysteresisLevel_TypeDef

◆ ACMP_InputRange_TypeDef

◆ ACMP_PowerSource_TypeDef

◆ ACMP_Accuracy_TypeDef

◆ ACMP_VAInput_TypeDef

◆ ACMP_VBInput_TypeDef

◆ ACMP_VLPInput_Typedef

◆ ACMP_Channel_TypeDef

◆ ACMP_ExternalInput_Typedef