COMP

Data Structures
struct	COMPConfig
	Driver configuration structure. More...
struct	COMPDriver
	Structure representing an COMP driver. More...

Enumerations
enum	comp_output_mode_t { COMP_OUTPUT_NORMAL = 0 , COMP_OUTPUT_INVERTED = 1 }
	COMP output mode. More...
enum	comp_irq_mode_t { COMP_IRQ_RISING = kACMP_OutputRisingEventFlag , COMP_IRQ_FALLING = kACMP_OutputFallingEventFlag , COMP_IRQ_BOTH = (COMP_IRQ_RISING | COMP_IRQ_FALLING) }
	COMP interrupt mode. More...

Functions
void	comp_lld_init (void)
	Low level COMP driver initialization.
static void	comp_lld_irq_handler (COMPDriver *compp)
	OSAL_IRQ_HANDLER (KINETIS_COMP0_IRQ_VECTOR)
	COMP1, COMP2, COMP3 interrupt handler.
	OSAL_IRQ_HANDLER (KINETIS_COMP1_IRQ_VECTOR)
	OSAL_IRQ_HANDLER (KINETIS_COMP2_IRQ_VECTOR)
void	comp_lld_channel_enable (COMPDriver *compp, uint32_t channel)
	Configures and activates an EXT channel (used by comp)
void	comp_lld_channel_disable (COMPDriver *compp, uint32_t channel)
	Deactivate an EXT channel (used by comp)
void	comp_lld_set_dac_value (COMPDriver *compp, uint32_t value)
	Set the DAC value used by comp.
void	comp_lld_start (COMPDriver *compp)
	Configures and activates the COMP peripheral.
void	comp_lld_stop (COMPDriver *compp)
	Deactivates the comp peripheral.
void	comp_lld_enable (COMPDriver *compp)
	Enables the output.
void	comp_lld_disable (COMPDriver *compp)
	Disables the output.
uint32_t	comp_lld_get_status (COMPDriver *compp)

Variables
COMPDriver	COMPD1
	COMPD1 driver identifier.
COMPDriver	COMPD2
	COMPD2 driver identifier.
COMPDriver	COMPD3
	COMPD3 driver identifier.
COMPDriver	COMPD1
	COMPD1 driver identifier.
COMPDriver	COMPD2
	COMPD2 driver identifier.
COMPDriver	COMPD3
	COMPD3 driver identifier.

Detailed Description

Enumeration Type Documentation

comp_irq_mode_t

enum comp_irq_mode_t

COMP interrupt mode.

Enumerator
COMP_IRQ_RISING
COMP_IRQ_FALLING
COMP_IRQ_BOTH

Definition at line 150 of file hal_comp_lld.h.

             {
  COMP_IRQ_RISING = kACMP_OutputRisingEventFlag,
  COMP_IRQ_FALLING = kACMP_OutputFallingEventFlag,
  COMP_IRQ_BOTH = (COMP_IRQ_RISING | COMP_IRQ_FALLING),
} comp_irq_mode_t;

comp_output_mode_t

enum comp_output_mode_t

COMP output mode.

Enumerator
COMP_OUTPUT_NORMAL
COMP_OUTPUT_INVERTED

Definition at line 142 of file hal_comp_lld.h.

             {
  COMP_OUTPUT_NORMAL = 0,
  COMP_OUTPUT_INVERTED = 1
} comp_output_mode_t;

Function Documentation

comp_lld_channel_disable()

void comp_lld_channel_disable	(	COMPDriver *	compp,
		uint32_t	channel
	)

Deactivate an EXT channel (used by comp)

Parameters

[in]	compp	pointer to the COMPDriver object
[in]	channel	EXT channel

@notapi

Definition at line 178 of file hal_comp_lld.c.

                                                                   {
  // todo: implement
}

comp_lld_channel_enable()

void comp_lld_channel_enable	(	COMPDriver *	compp,
		uint32_t	channel
	)

Configures and activates an EXT channel (used by comp)

Parameters

[in]	compp	pointer to the COMPDriver object
[in]	channel	EXT channel (0..7)

@notapi

Definition at line 160 of file hal_comp_lld.c.

                                                                  {
  osalDbgAssert(channel <= 7, "invalid channel number");
  memset(&compp->acmpChannelCfg, 0, sizeof(compp->acmpChannelCfg));
  compp->acmpChannelCfg.positivePortInput = kACMP_PortInputFromMux;
  compp->acmpChannelCfg.plusMuxInput = channel;
  compp->acmpChannelCfg.negativePortInput = kACMP_PortInputFromDAC;
  compp->acmpChannelCfg.minusMuxInput = 0U;
  ACMP_SetChannelConfig(compp->reg, &compp->acmpChannelCfg);
}

Referenced by startTriggerInputPins().

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comp_lld_disable()

void comp_lld_disable

(

COMPDriver *

compp

)

Disables the output.

Parameters

[in]

compp

pointer to the COMPDriver object

@notapi

Definition at line 263 of file hal_comp_lld.c.

                                         {
  ACMP_Enable(compp->reg, false);
  ACMP_DisableInterrupts(compp->reg, compp->irq_mask);
  compp->irq_mask = 0;
}

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comp_lld_enable()

void comp_lld_enable

(

COMPDriver *

compp

)

Enables the output.

Parameters

[in]

compp

pointer to the COMPDriver object

@notapi

Definition at line 243 of file hal_comp_lld.c.

                                        {
  compp->irq_mask = 0;
  
  /* Programming edge registers.*/
  if (compp->config->irq_mode == COMP_IRQ_RISING || compp->config->irq_mode == COMP_IRQ_BOTH)
    compp->irq_mask |= kACMP_OutputRisingInterruptEnable;
  if (compp->config->irq_mode == COMP_IRQ_FALLING || compp->config->irq_mode == COMP_IRQ_BOTH)
    compp->irq_mask |= kACMP_OutputFallingInterruptEnable;
    
  ACMP_EnableInterrupts(compp->reg, compp->irq_mask);
  ACMP_Enable(compp->reg, true);
}

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comp_lld_get_status()

uint32_t comp_lld_get_status

(

COMPDriver *

compp

)

Definition at line 269 of file hal_comp_lld.c.

                                                {
  uint32_t status = ACMP_GetStatusFlags(compp->reg);
  // clear flags to continue
  ACMP_ClearStatusFlags(compp->reg, status);
  return status;
}

Referenced by comp_shaft_callback().

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comp_lld_init()

void comp_lld_init

(

void

)

Low level COMP driver initialization.

@notapi

Definition at line 89 of file hal_comp_lld.c.

                         {
#if KINETIS_COMP_USE_COMP0
  /* Driver initialization.*/
  compObjectInit(&COMPD1);
  COMPD1.reg = CMP0;
  nvicEnableVector(CMP0_IRQn, KINETIS_COMP_IRQ_PRIORITY);
#endif
 
#if KINETIS_COMP_USE_COMP1
  /* Driver initialization.*/
  compObjectInit(&COMPD2);
  COMPD2.reg = CMP1;
  nvicEnableVector(CMP1_IRQn, KINETIS_COMP_IRQ_PRIORITY);
#endif
 
#if KINETIS_COMP_USE_COMP2
  /* Driver initialization.*/
  compObjectInit(&COMPD3);
  COMPD3.reg = CMP2;
  nvicEnableVector(CMP2_IRQn, KINETIS_COMP_IRQ_PRIORITY);
#endif
}

comp_lld_irq_handler()

static void comp_lld_irq_handler ( COMPDriver *  compp )

static

Definition at line 112 of file hal_comp_lld.c.

                                                    {
  if (compp->config->cb != NULL)
    compp->config->cb(compp);
 
  /* Add for ARM errata 838869, affects Cortex-M4, Cortex-M4F Store immediate overlapping
     exception return operation might vector to incorrect interrupt */
#if defined __CORTEX_M && (__CORTEX_M == 4U)
    __DSB();
#endif
}

Referenced by OSAL_IRQ_HANDLER(), OSAL_IRQ_HANDLER(), and OSAL_IRQ_HANDLER().

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comp_lld_set_dac_value()

void comp_lld_set_dac_value	(	COMPDriver *	compp,
		uint32_t	value
	)

Set the DAC value used by comp.

Parameters

[in]	compp	pointer to the COMPDriver object
[in]	value	DAC value (0..255?)

@notapi

Definition at line 190 of file hal_comp_lld.c.

                                                               {
  compp->acmpDacCfg.DACValue = value;
  ACMP_SetDACConfig(compp->reg, &compp->acmpDacCfg);
}

Referenced by setHysteresis(), and startTriggerInputPins().

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comp_lld_start()

void comp_lld_start

(

COMPDriver *

compp

)

Configures and activates the COMP peripheral.

Parameters

[in]

compp

pointer to the COMPDriver object

@notapi

Definition at line 202 of file hal_comp_lld.c.

                                       {
  ACMP_GetDefaultConfig(&compp->acmpCfg);
  if (compp->config->output_mode == COMP_OUTPUT_INVERTED)
    compp->acmpCfg.enableInvertOutput = true;
  compp->acmpCfg.enableHighSpeed = true;
  compp->acmpCfg.useUnfilteredOutput = true; //false;
  compp->acmpCfg.hysteresisMode = kACMP_HysteresisLevel2;   // L1=~16mV, L2=~32mV
 
  ACMP_Init(compp->reg, &compp->acmpCfg);
  compp->irq_mask = 0;
 
#if 0
  acmp_filter_config_t filterCfg = { 0 };
  filterCfg.filterCount = 2U;
  filterCfg.filterPeriod = 2U;
  filterCfg.enableSample = false;
  ACMP_SetFilterConfig(compp->reg, &filterCfg);
#endif  
 
  memset(&compp->acmpDacCfg, 0, sizeof(compp->acmpDacCfg));
  compp->acmpDacCfg.referenceVoltageSource = kACMP_VrefSourceVin1;  // connected to VDDA on KE1xF
}

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comp_lld_stop()

void comp_lld_stop

(

COMPDriver *

compp

)

Deactivates the comp peripheral.

Parameters

[in]

compp

pointer to the COMPDriver object

@notapi

Definition at line 232 of file hal_comp_lld.c.

                                      {
  ACMP_Deinit(compp->reg);
}

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OSAL_IRQ_HANDLER() [1/3]

OSAL_IRQ_HANDLER

(

KINETIS_COMP0_IRQ_VECTOR

)

COMP1, COMP2, COMP3 interrupt handler.

@isr

Definition at line 129 of file hal_comp_lld.c.

                                           {
  OSAL_IRQ_PROLOGUE();
  comp_lld_irq_handler(&COMPD1);
  OSAL_IRQ_EPILOGUE();
}

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OSAL_IRQ_HANDLER() [2/3]

OSAL_IRQ_HANDLER

(

KINETIS_COMP1_IRQ_VECTOR

)

Definition at line 137 of file hal_comp_lld.c.

                                           {
  OSAL_IRQ_PROLOGUE();
  comp_lld_irq_handler(&COMPD2);
  OSAL_IRQ_EPILOGUE();
}

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OSAL_IRQ_HANDLER() [3/3]

OSAL_IRQ_HANDLER

(

KINETIS_COMP2_IRQ_VECTOR

)

Definition at line 145 of file hal_comp_lld.c.

                                           {
  OSAL_IRQ_PROLOGUE();
  comp_lld_irq_handler(&COMPD3);
  OSAL_IRQ_EPILOGUE();
}

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Variable Documentation

COMPD1 [1/2]

COMPDriver COMPD1

COMPD1 driver identifier.

Note

The driver COMPD1 allocates the comparator COMP1 when enabled.

Definition at line 47 of file hal_comp_lld.c.

Referenced by comp_lld_init(), and OSAL_IRQ_HANDLER().

COMPD1 [2/2]

COMPDriver COMPD1

extern

COMPD1 driver identifier.

Note

The driver COMPD1 allocates the comparator COMP1 when enabled.

Definition at line 47 of file hal_comp_lld.c.

Referenced by comp_lld_init(), and OSAL_IRQ_HANDLER().

COMPD2 [1/2]

COMPDriver COMPD2

COMPD2 driver identifier.

Note

The driver COMPD2 allocates the comparator COMP2 when enabled.

Definition at line 55 of file hal_comp_lld.c.

Referenced by comp_lld_init(), and OSAL_IRQ_HANDLER().

COMPD2 [2/2]

COMPDriver COMPD2

extern

COMPD2 driver identifier.

Note

The driver COMPD2 allocates the comparator COMP2 when enabled.

Definition at line 55 of file hal_comp_lld.c.

Referenced by comp_lld_init(), and OSAL_IRQ_HANDLER().

COMPD3 [1/2]

COMPDriver COMPD3

COMPD3 driver identifier.

Note

The driver COMPD3 allocates the comparator COMP3 when enabled.

Definition at line 63 of file hal_comp_lld.c.

Referenced by comp_lld_init(), and OSAL_IRQ_HANDLER().

COMPD3 [2/2]

COMPDriver COMPD3

extern

COMPD3 driver identifier.

Note

The driver COMPD3 allocates the comparator COMP3 when enabled.

Definition at line 63 of file hal_comp_lld.c.

Referenced by comp_lld_init(), and OSAL_IRQ_HANDLER().