LEDDRV - LED Pre-Driver#


Example#

This example shows how to configure and use the LEDDRV peripheral for driving LED lights using both single and dual drive modes.

#include "sl_hal_leddrv.h"
#include "sl_clock_manager.h"

// Example function showing how to initialize and use the LEDDRV for LED control
void leddrv_example(void)
{
  // Enable clock to the LEDDRV peripheral
  sl_clock_manager_enable_bus_clock(SL_BUS_CLOCK_LEDDRV0);
  sl_clock_manager_enable_bus_clock(SL_BUS_CLOCK_GPIO);

  // Configure LEDDRV peripheral
  sl_hal_leddrv_init_t init = {
    .dual_drive_mode_enable = true,             // Enable dual drive mode
    .direct_drive_mode_enable = false,          // Disable direct drive mode
    .peak_current_foldback_enable = true,       // Enable peak current foldback
    .disable_ocflag_hardware_control = false,   // Enable overcurrent flag hardware control
    .enable_forced_calibration = false,         // Don't force enable (use internal enable)
    .time_on_max = SL_HAL_LEDDRV_TIME_MAX_12P8US,  // Set max on time to 12.8us
    .time_off_max = SL_HAL_LEDDRV_TIME_MAX_38P4US, // Set max off time to 38.4us
    .ipeak_detect_ref_adjust = SL_HAL_LEDDRV_IPEAK_DETECT_REF_ADJUST_300MV,
    .overcurrent_ref_adjust = SL_HAL_LEDDRV_IPEAK_OVERCURRENT_REF_ADJUST_800MV,
    .ton_cal_mode = SL_HAL_LEDDRV_TON_CAL_MODE_BOTH_CHANNELS,
    .fixed_ton_sel_lsb = SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_5MV,
    // Configure GPIO pins for LEDDRV - only Port C or D can be used
    .vac_gpio_select = { SL_HAL_LEDDRV_PORT_SELECT_PORT_C, 0 },
    .current_sense0_gpio_select = { SL_HAL_LEDDRV_PORT_SELECT_PORT_C, 1 },
    .drain_sense0_gpio_select = { SL_HAL_LEDDRV_PORT_SELECT_PORT_C, 2 },
    .current_sense1_gpio_select = { SL_HAL_LEDDRV_PORT_SELECT_PORT_C, 3 },
    .drain_sense1_gpio_select = { SL_HAL_LEDDRV_PORT_SELECT_PORT_C, 4 }
  };

  // Initialize the LEDDRV with the configuration
  sl_hal_leddrv_init(LEDDRV0, &init);

  // Enable the LEDDRV peripheral
  sl_hal_leddrv_enable(LEDDRV0);

  // Configure interrupts if needed
  sl_hal_leddrv_clear_interrupts(LEDDRV0, _LEDDRV_IEN_MASK);
  sl_hal_leddrv_enable_interrupts(LEDDRV0, LEDDRV_IEN_OCDET0);  // Enable overcurrent detection interrupt

  // Wait for a while to let the LEDDRV operate
  // In a real application, this would be replaced with application code
  // or you would respond to interrupts
  for (volatile int i = 0; i < 1000; i++) {}

  // Check for any overcurrent conditions
  uint32_t status = sl_hal_leddrv_get_status(LEDDRV0);
  if (status & LEDDRV_STATUS_OCFLAG0) {
    // Handle overcurrent condition on channel 0
    sl_hal_leddrv_clear_ocflag_channel0(LEDDRV0);
  }

  // Clean up and disable LEDDRV when done
  sl_hal_leddrv_disable_interrupts(LEDDRV0, _LEDDRV_IEN_MASK);
  sl_hal_leddrv_disable(LEDDRV0);
  sl_hal_leddrv_wait_ready(LEDDRV0);

  // Disable clocks to save power
  sl_clock_manager_disable_bus_clock(SL_BUS_CLOCK_LEDDRV0);
  sl_clock_manager_disable_bus_clock(SL_BUS_CLOCK_GPIO);
}

Modules#

sl_hal_leddrv_gpio_select_t

sl_hal_leddrv_init_t

Enumerations#

enum
sl_hal_leddrv_time_max_t {
SL_HAL_LEDDRV_TIME_MAX_DISABLE = 0
SL_HAL_LEDDRV_TIME_MAX_6P4US
SL_HAL_LEDDRV_TIME_MAX_12P8US
SL_HAL_LEDDRV_TIME_MAX_19P2US
SL_HAL_LEDDRV_TIME_MAX_25P6US
SL_HAL_LEDDRV_TIME_MAX_32P0US
SL_HAL_LEDDRV_TIME_MAX_38P4US
SL_HAL_LEDDRV_TIME_MAX_44P8US
}

Used for Max On time and max Off time of LEDDRV.

enum
sl_hal_leddrv_ton_cal_mode_t {
SL_HAL_LEDDRV_TON_CAL_MODE_CURRENT_CHANNEL_ONLY = 0
SL_HAL_LEDDRV_TON_CAL_MODE_BOTH_CHANNELS
SL_HAL_LEDDRV_TON_CAL_MODE_ON_FORCE
SL_HAL_LEDDRV_TON_CAL_MODE_FIXED
}

Time On calibration channel mode.

enum
sl_hal_leddrv_ipeak_detect_ref_adjust_t {
SL_HAL_LEDDRV_IPEAK_DETECT_REF_ADJUST_200MV = 0
SL_HAL_LEDDRV_IPEAK_DETECT_REF_ADJUST_300MV
SL_HAL_LEDDRV_IPEAK_DETECT_REF_ADJUST_400MV
SL_HAL_LEDDRV_IPEAK_DETECT_REF_ADJUST_500MV
}

Peak current detect reference adjust value.

enum
sl_hal_leddrv_overcurrent_ref_adjust_t {
SL_HAL_LEDDRV_IPEAK_OVERCURRENT_REF_ADJUST_400MV = 0
SL_HAL_LEDDRV_IPEAK_OVERCURRENT_REF_ADJUST_600MV
SL_HAL_LEDDRV_IPEAK_OVERCURRENT_REF_ADJUST_800MV
SL_HAL_LEDDRV_IPEAK_OVERCURRENT_REF_ADJUST_1000MV
}

Over current reference adjust.

enum
sl_hal_leddrv_fixed_ton_sel_lsb_t {
SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_0MV = 0
SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_1MV
SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_2MV
SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_3MV
SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_4MV
SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_5MV
SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_6MV
SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_7MV
SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_8MV
SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_9MV
SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_10MV
SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_11MV
SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_12MV
SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_13MV
SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_14MV
SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_15MV
}

Fixed Ton Select LSBs.

enum
sl_hal_leddrv_port_select_t {
SL_HAL_LEDDRV_PORT_SELECT_NONE = 0
SL_HAL_LEDDRV_PORT_SELECT_PORT_C
SL_HAL_LEDDRV_PORT_SELECT_PORT_D
}

Port selection for LEDDRV gpio selection (only ports C/D allowed).

Functions#

void
sl_hal_leddrv_init(LEDDRV_TypeDef *leddrv, const sl_hal_leddrv_init_t *init)

Initialize LEDDRV.

void
sl_hal_leddrv_wait_ready(LEDDRV_TypeDef *leddrv)

Wait for disabling to finish.

void
sl_hal_leddrv_enable(LEDDRV_TypeDef *leddrv)

Enable LEDDRV.

void
sl_hal_leddrv_disable(LEDDRV_TypeDef *leddrv)

Disable LEDDRV.

void
sl_hal_leddrv_enable_dual_drive_mode(LEDDRV_TypeDef *leddrv)

Enable LEDDRV dual drive mode.

void
sl_hal_leddrv_disable_dual_drive_mode(LEDDRV_TypeDef *leddrv)

Disable LEDDRV dual drive mode.

void
sl_hal_leddrv_enable_peak_current_foldback(LEDDRV_TypeDef *leddrv)

Enable LEDDRV peak current foldback mode.

void
sl_hal_leddrv_disable_peak_current_foldback(LEDDRV_TypeDef *leddrv)

Disable LEDDRV peak current foldback mode.

void
sl_hal_leddrv_enable_direct_drive_mode(LEDDRV_TypeDef *leddrv)

Enable LEDDRV direct drive mode.

void
sl_hal_leddrv_disable_direct_drive_mode(LEDDRV_TypeDef *leddrv)

Disable LEDDRV direct drive mode.

void
sl_hal_leddrv_enable_ocflag_hardware_control(LEDDRV_TypeDef *leddrv)

Enable LEDDRV Hardware overcurrent control.

void
sl_hal_leddrv_disable_ocflag_hardware_control(LEDDRV_TypeDef *leddrv)

Disable LEDDRV Hardware overcurrent control.

void
sl_hal_leddrv_set_ton_forced_calibration(LEDDRV_TypeDef *leddrv)

Set LEDDRV Ton calibration trigger.

void
sl_hal_leddrv_clear_ton_forced_calibration(LEDDRV_TypeDef *leddrv)

Clear LEDDRV Ton calibration trigger.

void
sl_hal_leddrv_clear_ocflag_channel0(LEDDRV_TypeDef *leddrv)

Clear LEDDRV Overcurrent Flag on channel 0.

void
sl_hal_leddrv_clear_ocflag_channel1(LEDDRV_TypeDef *leddrv)

Clear LEDDRV Overcurrent Flag on channel 1.

void
sl_hal_leddrv_reset(LEDDRV_TypeDef *leddrv)

Reset the LEDDRV.

uint32_t
sl_hal_leddrv_get_status(LEDDRV_TypeDef *leddrv)

Gets LEDDRV STATUS register value.

void
sl_hal_leddrv_clear_interrupts(LEDDRV_TypeDef *leddrv, uint32_t flags)

Clear one or more pending LEDDRV interrupts.

void
sl_hal_leddrv_set_interrupts(LEDDRV_TypeDef *leddrv, uint32_t flags)

Set one or more pending LEDDRV interrupts from SW.

void
sl_hal_leddrv_disable_interrupts(LEDDRV_TypeDef *leddrv, uint32_t flags)

Disable one or more LEDDRV interrupts.

void
sl_hal_leddrv_enable_interrupts(LEDDRV_TypeDef *leddrv, uint32_t flags)

Enable one or more LEDDRV interrupts.

uint32_t
sl_hal_leddrv_get_pending_interrupts(LEDDRV_TypeDef *leddrv)

Get pending LEDDRV interrupt flags.

uint32_t
sl_hal_leddrv_get_enabled_interrupts(LEDDRV_TypeDef *leddrv)

Get enabled LEDDRV interrupt flags.

uint32_t
sl_hal_leddrv_get_enabled_pending_interrupts(LEDDRV_TypeDef *leddrv)

Get enabled and pending LEDDRV interrupt flags.

Macros#

#define
SL_HAL_LEDDRV_REF_VALID (leddrv_ref)

Check if LEDDRV instance is valid.

#define
SL_HAL_LEDDRV_GPIO_SELECT_DEFAULT undefined

Default configuration for LEDDRV port/pin structure.

#define
SL_HAL_LEDDRV_INIT_DEFAULT undefined

Default configuration for LEDDRV initialization structure.

Enumeration Documentation#

sl_hal_leddrv_time_max_t#

sl_hal_leddrv_time_max_t

Used for Max On time and max Off time of LEDDRV.

Enumerator
SL_HAL_LEDDRV_TIME_MAX_DISABLE

Max On/Off time is disabled.

SL_HAL_LEDDRV_TIME_MAX_6P4US

Max On/Off time is 6.4 us.

SL_HAL_LEDDRV_TIME_MAX_12P8US

Max On/Off time is 12.8 us.

SL_HAL_LEDDRV_TIME_MAX_19P2US

Max On/Off time is 19.2 us.

SL_HAL_LEDDRV_TIME_MAX_25P6US

Max On/Off time is 25.6 us.

SL_HAL_LEDDRV_TIME_MAX_32P0US

Max On/Off time is 32.0 us.

SL_HAL_LEDDRV_TIME_MAX_38P4US

Max On/Off time is 38.4 us.

SL_HAL_LEDDRV_TIME_MAX_44P8US

Max On/Off time is 44.8 us.


sl_hal_leddrv_ton_cal_mode_t#

sl_hal_leddrv_ton_cal_mode_t

Time On calibration channel mode.

Enumerator
SL_HAL_LEDDRV_TON_CAL_MODE_CURRENT_CHANNEL_ONLY

Current channel only.

SL_HAL_LEDDRV_TON_CAL_MODE_BOTH_CHANNELS

Both channels.

SL_HAL_LEDDRV_TON_CAL_MODE_ON_FORCE

Calibration On force.

SL_HAL_LEDDRV_TON_CAL_MODE_FIXED

Calibration is Fixed.


sl_hal_leddrv_ipeak_detect_ref_adjust_t#

sl_hal_leddrv_ipeak_detect_ref_adjust_t

Peak current detect reference adjust value.

Enumerator
SL_HAL_LEDDRV_IPEAK_DETECT_REF_ADJUST_200MV

ipeak detect reference adjust 200 mV.

SL_HAL_LEDDRV_IPEAK_DETECT_REF_ADJUST_300MV

ipeak detect reference adjust 300 mV.

SL_HAL_LEDDRV_IPEAK_DETECT_REF_ADJUST_400MV

ipeak detect reference adjust 400 mV.

SL_HAL_LEDDRV_IPEAK_DETECT_REF_ADJUST_500MV

ipeak detect reference adjust 500 mV.


sl_hal_leddrv_overcurrent_ref_adjust_t#

sl_hal_leddrv_overcurrent_ref_adjust_t

Over current reference adjust.

Enumerator
SL_HAL_LEDDRV_IPEAK_OVERCURRENT_REF_ADJUST_400MV

Overcurrent reference adjust 400 mV.

SL_HAL_LEDDRV_IPEAK_OVERCURRENT_REF_ADJUST_600MV

Overcurrent reference adjust 600 mV.

SL_HAL_LEDDRV_IPEAK_OVERCURRENT_REF_ADJUST_800MV

Overcurrent reference adjust 800 mV.

SL_HAL_LEDDRV_IPEAK_OVERCURRENT_REF_ADJUST_1000MV

Overcurrent reference adjust 1000 mV.


sl_hal_leddrv_fixed_ton_sel_lsb_t#

sl_hal_leddrv_fixed_ton_sel_lsb_t

Fixed Ton Select LSBs.

Enumerator
SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_0MV

LSB is 0 mV.

SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_1MV

LSB is 1 mV.

SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_2MV

LSB is 2 mV.

SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_3MV

LSB is 3 mV.

SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_4MV

LSB is 4 mV.

SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_5MV

LSB is 5 mV.

SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_6MV

LSB is 6 mV.

SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_7MV

LSB is 7 mV.

SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_8MV

LSB is 8 mV.

SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_9MV

LSB is 9 mV.

SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_10MV

LSB is 10 mV.

SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_11MV

LSB is 11 mV.

SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_12MV

LSB is 12 mV.

SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_13MV

LSB is 13 mV.

SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_14MV

LSB is 14 mV.

SL_HAL_LEDDRV_FIXED_TON_SEL_LSB_15MV

LSB is 15 mV.


sl_hal_leddrv_port_select_t#

sl_hal_leddrv_port_select_t

Port selection for LEDDRV gpio selection (only ports C/D allowed).

Enumerator
SL_HAL_LEDDRV_PORT_SELECT_NONE

Select no Port.

SL_HAL_LEDDRV_PORT_SELECT_PORT_C

Select Port C.

SL_HAL_LEDDRV_PORT_SELECT_PORT_D

Select Port D.


Function Documentation#

sl_hal_leddrv_init#

void sl_hal_leddrv_init (LEDDRV_TypeDef * leddrv, const sl_hal_leddrv_init_t * init)

Initialize LEDDRV.

Parameters
TypeDirectionArgument NameDescription
LEDDRV_TypeDef *[in]leddrv

A pointer to the LEDDRV peripheral register block.

const sl_hal_leddrv_init_t *[in]init

A pointer to the LEDDRV initialization structure.

This function will allocate GPIO CD bus to LEDDRV. Make sure to set port/pin to C/D ports and pins in the init structure.


sl_hal_leddrv_wait_ready#

void sl_hal_leddrv_wait_ready (LEDDRV_TypeDef * leddrv)

Wait for disabling to finish.

Parameters
TypeDirectionArgument NameDescription
LEDDRV_TypeDef *[in]leddrv

Pointer to the LEDDRV peripheral register block.


sl_hal_leddrv_enable#

void sl_hal_leddrv_enable (LEDDRV_TypeDef * leddrv)

Enable LEDDRV.

Parameters
TypeDirectionArgument NameDescription
LEDDRV_TypeDef *[in]leddrv

Pointer to the LEDDRV peripheral register block.


sl_hal_leddrv_disable#

void sl_hal_leddrv_disable (LEDDRV_TypeDef * leddrv)

Disable LEDDRV.

Parameters
TypeDirectionArgument NameDescription
LEDDRV_TypeDef *[in]leddrv

Pointer to the LEDDRV peripheral register block.


sl_hal_leddrv_enable_dual_drive_mode#

void sl_hal_leddrv_enable_dual_drive_mode (LEDDRV_TypeDef * leddrv)

Enable LEDDRV dual drive mode.

Parameters
TypeDirectionArgument NameDescription
LEDDRV_TypeDef *[in]leddrv

Pointer to the LEDDRV peripheral register block.


sl_hal_leddrv_disable_dual_drive_mode#

void sl_hal_leddrv_disable_dual_drive_mode (LEDDRV_TypeDef * leddrv)

Disable LEDDRV dual drive mode.

Parameters
TypeDirectionArgument NameDescription
LEDDRV_TypeDef *[in]leddrv

Pointer to the LEDDRV peripheral register block.


sl_hal_leddrv_enable_peak_current_foldback#

void sl_hal_leddrv_enable_peak_current_foldback (LEDDRV_TypeDef * leddrv)

Enable LEDDRV peak current foldback mode.

Parameters
TypeDirectionArgument NameDescription
LEDDRV_TypeDef *[in]leddrv

Pointer to the LEDDRV peripheral register block.


sl_hal_leddrv_disable_peak_current_foldback#

void sl_hal_leddrv_disable_peak_current_foldback (LEDDRV_TypeDef * leddrv)

Disable LEDDRV peak current foldback mode.

Parameters
TypeDirectionArgument NameDescription
LEDDRV_TypeDef *[in]leddrv

Pointer to the LEDDRV peripheral register block.


sl_hal_leddrv_enable_direct_drive_mode#

void sl_hal_leddrv_enable_direct_drive_mode (LEDDRV_TypeDef * leddrv)

Enable LEDDRV direct drive mode.

Parameters
TypeDirectionArgument NameDescription
LEDDRV_TypeDef *[in]leddrv

Pointer to the LEDDRV peripheral register block.


sl_hal_leddrv_disable_direct_drive_mode#

void sl_hal_leddrv_disable_direct_drive_mode (LEDDRV_TypeDef * leddrv)

Disable LEDDRV direct drive mode.

Parameters
TypeDirectionArgument NameDescription
LEDDRV_TypeDef *[in]leddrv

Pointer to the LEDDRV peripheral register block.


sl_hal_leddrv_enable_ocflag_hardware_control#

void sl_hal_leddrv_enable_ocflag_hardware_control (LEDDRV_TypeDef * leddrv)

Enable LEDDRV Hardware overcurrent control.

Parameters
TypeDirectionArgument NameDescription
LEDDRV_TypeDef *[in]leddrv

Pointer to the LEDDRV peripheral register block.


sl_hal_leddrv_disable_ocflag_hardware_control#

void sl_hal_leddrv_disable_ocflag_hardware_control (LEDDRV_TypeDef * leddrv)

Disable LEDDRV Hardware overcurrent control.

Parameters
TypeDirectionArgument NameDescription
LEDDRV_TypeDef *[in]leddrv

Pointer to the LEDDRV peripheral register block.


sl_hal_leddrv_set_ton_forced_calibration#

void sl_hal_leddrv_set_ton_forced_calibration (LEDDRV_TypeDef * leddrv)

Set LEDDRV Ton calibration trigger.

Parameters
TypeDirectionArgument NameDescription
LEDDRV_TypeDef *[in]leddrv

Pointer to the LEDDRV peripheral register block.


sl_hal_leddrv_clear_ton_forced_calibration#

void sl_hal_leddrv_clear_ton_forced_calibration (LEDDRV_TypeDef * leddrv)

Clear LEDDRV Ton calibration trigger.

Parameters
TypeDirectionArgument NameDescription
LEDDRV_TypeDef *[in]leddrv

Pointer to the LEDDRV peripheral register block.


sl_hal_leddrv_clear_ocflag_channel0#

void sl_hal_leddrv_clear_ocflag_channel0 (LEDDRV_TypeDef * leddrv)

Clear LEDDRV Overcurrent Flag on channel 0.

Parameters
TypeDirectionArgument NameDescription
LEDDRV_TypeDef *[in]leddrv

Pointer to the LEDDRV peripheral register block.


sl_hal_leddrv_clear_ocflag_channel1#

void sl_hal_leddrv_clear_ocflag_channel1 (LEDDRV_TypeDef * leddrv)

Clear LEDDRV Overcurrent Flag on channel 1.

Parameters
TypeDirectionArgument NameDescription
LEDDRV_TypeDef *[in]leddrv

Pointer to the LEDDRV peripheral register block.


sl_hal_leddrv_reset#

void sl_hal_leddrv_reset (LEDDRV_TypeDef * leddrv)

Reset the LEDDRV.

Parameters
TypeDirectionArgument NameDescription
LEDDRV_TypeDef *[in]leddrv

A leddrv peripheral module.


sl_hal_leddrv_get_status#

uint32_t sl_hal_leddrv_get_status (LEDDRV_TypeDef * leddrv)

Gets LEDDRV STATUS register value.

Parameters
TypeDirectionArgument NameDescription
LEDDRV_TypeDef *[in]leddrv

A LEDDRV peripheral module.

Returns

  • Current STATUS register value.


sl_hal_leddrv_clear_interrupts#

void sl_hal_leddrv_clear_interrupts (LEDDRV_TypeDef * leddrv, uint32_t flags)

Clear one or more pending LEDDRV interrupts.

Parameters
TypeDirectionArgument NameDescription
LEDDRV_TypeDef *[in]leddrv

Pointer to the LEDDRV peripheral register block.

uint32_t[in]flags

Pending LEDDRV interrupt source(s) to clear. Use one or more valid interrupt flags for the LEDDRV module (LEDDRV_IF_nnn) OR'ed together.


sl_hal_leddrv_set_interrupts#

void sl_hal_leddrv_set_interrupts (LEDDRV_TypeDef * leddrv, uint32_t flags)

Set one or more pending LEDDRV interrupts from SW.

Parameters
TypeDirectionArgument NameDescription
LEDDRV_TypeDef *[in]leddrv

Pointer to the LEDDRV peripheral register block.

uint32_t[in]flags

LEDDRV interrupt source(s) to set to pending. Use one or more valid interrupt flags for the LEDDRV module (LEDDRV_IF_nnn) OR'ed together.


sl_hal_leddrv_disable_interrupts#

void sl_hal_leddrv_disable_interrupts (LEDDRV_TypeDef * leddrv, uint32_t flags)

Disable one or more LEDDRV interrupts.

Parameters
TypeDirectionArgument NameDescription
LEDDRV_TypeDef *[in]leddrv

Pointer to the LEDDRV peripheral register block.

uint32_t[in]flags

LEDDRV interrupt source(s) to disable. Use one or more valid interrupt flags for the LEDDRV module (LEDDRV_IEN_nnn) OR'ed together.


sl_hal_leddrv_enable_interrupts#

void sl_hal_leddrv_enable_interrupts (LEDDRV_TypeDef * leddrv, uint32_t flags)

Enable one or more LEDDRV interrupts.

Parameters
TypeDirectionArgument NameDescription
LEDDRV_TypeDef *[in]leddrv

Pointer to the LEDDRV peripheral register block.

uint32_t[in]flags

LEDDRV interrupt source(s) to enable. Use one or more valid interrupt flags for the LEDDRV module (LEDDRV_IEN_nnn) OR'ed together.

Note

  • Depending on the use, a pending interrupt may already be set prior to enabling the interrupt. To ignore a pending interrupt, consider using sl_hal_leddrv_clear_interrupts() prior to enabling the interrupt.


sl_hal_leddrv_get_pending_interrupts#

uint32_t sl_hal_leddrv_get_pending_interrupts (LEDDRV_TypeDef * leddrv)

Get pending LEDDRV interrupt flags.

Parameters
TypeDirectionArgument NameDescription
LEDDRV_TypeDef *[in]leddrv

Pointer to the LEDDRV peripheral register block.

Note

  • Event bits are not cleared by this function.

Returns

  • LEDDRV interrupt source(s) pending. Returns one or more valid interrupt flags for the LEDDRV module (LEDDRV_IF_nnn) OR'ed together.


sl_hal_leddrv_get_enabled_interrupts#

uint32_t sl_hal_leddrv_get_enabled_interrupts (LEDDRV_TypeDef * leddrv)

Get enabled LEDDRV interrupt flags.

Parameters
TypeDirectionArgument NameDescription
LEDDRV_TypeDef *[in]leddrv

Pointer to the LEDDRV peripheral register block.

Note

  • Event bits are not cleared by this function.

Returns

  • LEDDRV interrupt source(s) enabled. Returns one or more valid enabled interrupt sources in LEDDRVx_IEN_nnn.


sl_hal_leddrv_get_enabled_pending_interrupts#

uint32_t sl_hal_leddrv_get_enabled_pending_interrupts (LEDDRV_TypeDef * leddrv)

Get enabled and pending LEDDRV interrupt flags.

Parameters
TypeDirectionArgument NameDescription
LEDDRV_TypeDef *[in]leddrv

Pointer to the LEDDRV peripheral register block.

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

Note

  • Interrupt flags are not cleared by this function.

Returns

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

    • the OR combination of enabled interrupt sources in LEDDRVx_IEN_nnn register (LEDDRVx_IEN_nnn) and

    • the OR combination of valid interrupt flags of the LEDDRV module (LEDDRVx_IF_nnn).