SAADC HAL¶

group nrf_saadc_hal

Hardware access layer for managing the SAADC peripheral.

Typedefs

typedef int16_t nrf_saadc_value_t¶: Type of a single ADC conversion result.

Enums

enum nrf_saadc_resolution_t¶

Resolution of the analog-to-digital converter.

Values:

enumerator NRF_SAADC_RESOLUTION_8BIT¶: 8 bit resolution.

enumerator NRF_SAADC_RESOLUTION_10BIT¶: 10 bit resolution.

enumerator NRF_SAADC_RESOLUTION_12BIT¶: 12 bit resolution.

enumerator NRF_SAADC_RESOLUTION_14BIT¶: 14 bit resolution.

enum nrf_saadc_input_t¶

Input selection for the analog-to-digital converter.

Values:

enumerator NRF_SAADC_INPUT_DISABLED¶: Not connected.

enumerator NRF_SAADC_INPUT_AIN0¶: Analog input 0 (AIN0).

enumerator NRF_SAADC_INPUT_AIN1¶: Analog input 1 (AIN1).

enumerator NRF_SAADC_INPUT_AIN2¶: Analog input 2 (AIN2).

enumerator NRF_SAADC_INPUT_AIN3¶: Analog input 3 (AIN3).

enumerator NRF_SAADC_INPUT_AIN4¶: Analog input 4 (AIN4).

enumerator NRF_SAADC_INPUT_AIN5¶: Analog input 5 (AIN5).

enumerator NRF_SAADC_INPUT_AIN6¶: Analog input 6 (AIN6).

enumerator NRF_SAADC_INPUT_AIN7¶: Analog input 7 (AIN7).

enumerator NRF_SAADC_INPUT_VDD¶: VDD as input.

enumerator NRF_SAADC_INPUT_VDDHDIV5¶: VDDH/5 as input.

enum nrf_saadc_oversample_t¶

Analog-to-digital converter oversampling mode.

Values:

enumerator NRF_SAADC_OVERSAMPLE_DISABLED¶: No oversampling.

enumerator NRF_SAADC_OVERSAMPLE_2X¶: Oversample 2x.

enumerator NRF_SAADC_OVERSAMPLE_4X¶: Oversample 4x.

enumerator NRF_SAADC_OVERSAMPLE_8X¶: Oversample 8x.

enumerator NRF_SAADC_OVERSAMPLE_16X¶: Oversample 16x.

enumerator NRF_SAADC_OVERSAMPLE_32X¶: Oversample 32x.

enumerator NRF_SAADC_OVERSAMPLE_64X¶: Oversample 64x.

enumerator NRF_SAADC_OVERSAMPLE_128X¶: Oversample 128x.

enumerator NRF_SAADC_OVERSAMPLE_256X¶: Oversample 256x.

enum nrf_saadc_resistor_t¶

Analog-to-digital converter channel resistor control.

Values:

enumerator NRF_SAADC_RESISTOR_DISABLED¶: Bypass resistor ladder.

enumerator NRF_SAADC_RESISTOR_PULLDOWN¶: Pull-down to GND.

enumerator NRF_SAADC_RESISTOR_PULLUP¶: Pull-up to VDD.

enumerator NRF_SAADC_RESISTOR_VDD1_2¶: Set input at VDD/2.

enum nrf_saadc_gain_t¶

Gain factor of the analog-to-digital converter input.

Values:

enumerator NRF_SAADC_GAIN1_6¶: Gain factor 1/6.

enumerator NRF_SAADC_GAIN1_5¶: Gain factor 1/5.

enumerator NRF_SAADC_GAIN1_4¶: Gain factor 1/4.

enumerator NRF_SAADC_GAIN1_3¶: Gain factor 1/3.

enumerator NRF_SAADC_GAIN1_2¶: Gain factor 1/2.

enumerator NRF_SAADC_GAIN1¶: Gain factor 1.

enumerator NRF_SAADC_GAIN2¶: Gain factor 2.

enumerator NRF_SAADC_GAIN4¶: Gain factor 4.

enum nrf_saadc_reference_t¶

Reference selection for the analog-to-digital converter.

Values:

enumerator NRF_SAADC_REFERENCE_INTERNAL¶: Internal reference (0.6 V).

enumerator NRF_SAADC_REFERENCE_VDD4¶: VDD/4 as reference.

enum nrf_saadc_acqtime_t¶

Analog-to-digital converter acquisition time.

Values:

enumerator NRF_SAADC_ACQTIME_3US¶: 3 us.

enumerator NRF_SAADC_ACQTIME_5US¶: 5 us.

enumerator NRF_SAADC_ACQTIME_10US¶: 10 us.

enumerator NRF_SAADC_ACQTIME_15US¶: 15 us.

enumerator NRF_SAADC_ACQTIME_20US¶: 20 us.

enumerator NRF_SAADC_ACQTIME_40US¶: 40 us.

enum nrf_saadc_mode_t¶

Analog-to-digital converter channel mode.

Values:

enumerator NRF_SAADC_MODE_SINGLE_ENDED¶: Single-ended mode. PSELN will be ignored, negative input to ADC shorted to GND.

enumerator NRF_SAADC_MODE_DIFFERENTIAL¶: Differential mode.

enum nrf_saadc_burst_t¶

Analog-to-digital converter channel burst mode.

Values:

enumerator NRF_SAADC_BURST_DISABLED¶: Burst mode is disabled (normal operation).

enumerator NRF_SAADC_BURST_ENABLED¶: Burst mode is enabled. SAADC takes 2^OVERSAMPLE number of samples as fast as it can, and sends the average to Data RAM.

enum nrf_saadc_task_t¶

Analog-to-digital converter tasks.

Values:

enumerator NRF_SAADC_TASK_START¶: Start the ADC and prepare the result buffer in RAM.

enumerator NRF_SAADC_TASK_SAMPLE¶: Take one ADC sample. If scan is enabled, all channels are sampled.

enumerator NRF_SAADC_TASK_STOP¶: Stop the ADC and terminate any ongoing conversion.

enumerator NRF_SAADC_TASK_CALIBRATEOFFSET¶: Starts offset auto-calibration.

enum nrf_saadc_event_t¶

Analog-to-digital converter events.

Values:

enumerator NRF_SAADC_EVENT_STARTED¶: The ADC has started.

enumerator NRF_SAADC_EVENT_END¶: The ADC has filled up the result buffer.

enumerator NRF_SAADC_EVENT_DONE¶: A conversion task has been completed.

enumerator NRF_SAADC_EVENT_RESULTDONE¶: A result is ready to get transferred to RAM.

enumerator NRF_SAADC_EVENT_CALIBRATEDONE¶: Calibration is complete.

enumerator NRF_SAADC_EVENT_STOPPED¶: The ADC has stopped.

enumerator NRF_SAADC_EVENT_CH0_LIMITH¶: Last result is equal or above CH[0].LIMIT.HIGH.

enumerator NRF_SAADC_EVENT_CH0_LIMITL¶: Last result is equal or below CH[0].LIMIT.LOW.

enumerator NRF_SAADC_EVENT_CH1_LIMITH¶: Last result is equal or above CH[1].LIMIT.HIGH.

enumerator NRF_SAADC_EVENT_CH1_LIMITL¶: Last result is equal or below CH[1].LIMIT.LOW.

enumerator NRF_SAADC_EVENT_CH2_LIMITH¶: Last result is equal or above CH[2].LIMIT.HIGH.

enumerator NRF_SAADC_EVENT_CH2_LIMITL¶: Last result is equal or below CH[2].LIMIT.LOW.

enumerator NRF_SAADC_EVENT_CH3_LIMITH¶: Last result is equal or above CH[3].LIMIT.HIGH.

enumerator NRF_SAADC_EVENT_CH3_LIMITL¶: Last result is equal or below CH[3].LIMIT.LOW.

enumerator NRF_SAADC_EVENT_CH4_LIMITH¶: Last result is equal or above CH[4].LIMIT.HIGH.

enumerator NRF_SAADC_EVENT_CH4_LIMITL¶: Last result is equal or below CH[4].LIMIT.LOW.

enumerator NRF_SAADC_EVENT_CH5_LIMITH¶: Last result is equal or above CH[5].LIMIT.HIGH.

enumerator NRF_SAADC_EVENT_CH5_LIMITL¶: Last result is equal or below CH[5].LIMIT.LOW.

enumerator NRF_SAADC_EVENT_CH6_LIMITH¶: Last result is equal or above CH[6].LIMIT.HIGH.

enumerator NRF_SAADC_EVENT_CH6_LIMITL¶: Last result is equal or below CH[6].LIMIT.LOW.

enumerator NRF_SAADC_EVENT_CH7_LIMITH¶: Last result is equal or above CH[7].LIMIT.HIGH.

enumerator NRF_SAADC_EVENT_CH7_LIMITL¶: Last result is equal or below CH[7].LIMIT.LOW.

enum nrf_saadc_int_mask_t¶

Analog-to-digital converter interrupt masks.

Values:

enumerator NRF_SAADC_INT_STARTED¶: Interrupt on EVENTS_STARTED event.

enumerator NRF_SAADC_INT_END¶: Interrupt on EVENTS_END event.

enumerator NRF_SAADC_INT_DONE¶: Interrupt on EVENTS_DONE event.

enumerator NRF_SAADC_INT_RESULTDONE¶: Interrupt on EVENTS_RESULTDONE event.

enumerator NRF_SAADC_INT_CALIBRATEDONE¶: Interrupt on EVENTS_CALIBRATEDONE event.

enumerator NRF_SAADC_INT_STOPPED¶: Interrupt on EVENTS_STOPPED event.

enumerator NRF_SAADC_INT_CH0LIMITH¶: Interrupt on EVENTS_CH[0].LIMITH event.

enumerator NRF_SAADC_INT_CH0LIMITL¶: Interrupt on EVENTS_CH[0].LIMITL event.

enumerator NRF_SAADC_INT_CH1LIMITH¶: Interrupt on EVENTS_CH[1].LIMITH event.

enumerator NRF_SAADC_INT_CH1LIMITL¶: Interrupt on EVENTS_CH[1].LIMITL event.

enumerator NRF_SAADC_INT_CH2LIMITH¶: Interrupt on EVENTS_CH[2].LIMITH event.

enumerator NRF_SAADC_INT_CH2LIMITL¶: Interrupt on EVENTS_CH[2].LIMITL event.

enumerator NRF_SAADC_INT_CH3LIMITH¶: Interrupt on EVENTS_CH[3].LIMITH event.

enumerator NRF_SAADC_INT_CH3LIMITL¶: Interrupt on EVENTS_CH[3].LIMITL event.

enumerator NRF_SAADC_INT_CH4LIMITH¶: Interrupt on EVENTS_CH[4].LIMITH event.

enumerator NRF_SAADC_INT_CH4LIMITL¶: Interrupt on EVENTS_CH[4].LIMITL event.

enumerator NRF_SAADC_INT_CH5LIMITH¶: Interrupt on EVENTS_CH[5].LIMITH event.

enumerator NRF_SAADC_INT_CH5LIMITL¶: Interrupt on EVENTS_CH[5].LIMITL event.

enumerator NRF_SAADC_INT_CH6LIMITH¶: Interrupt on EVENTS_CH[6].LIMITH event.

enumerator NRF_SAADC_INT_CH6LIMITL¶: Interrupt on EVENTS_CH[6].LIMITL event.

enumerator NRF_SAADC_INT_CH7LIMITH¶: Interrupt on EVENTS_CH[7].LIMITH event.

enumerator NRF_SAADC_INT_CH7LIMITL¶: Interrupt on EVENTS_CH[7].LIMITL event.

enumerator NRF_SAADC_INT_ALL¶: Mask of all interrupts.

enum nrf_saadc_limit_t¶

Analog-to-digital converter value limit type.

Values:

enumerator NRF_SAADC_LIMIT_LOW¶: Low limit type.

enumerator NRF_SAADC_LIMIT_HIGH¶: High limit type.

Functions

NRF_STATIC_INLINE void nrf_saadc_task_trigger(NRF_SAADC_Type *p_reg, nrf_saadc_task_t task)¶

Function for triggering the specified SAADC task.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.
task – [in] SAADC task.

NRF_STATIC_INLINE uint32_t nrf_saadc_task_address_get(NRF_SAADC_Type const *p_reg, nrf_saadc_task_t task)¶

Function for getting the address of the specified SAADC task register.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.
task – [in] SAADC task.

Returns

Address of the specified SAADC task.

NRF_STATIC_INLINE bool nrf_saadc_event_check(NRF_SAADC_Type const *p_reg, nrf_saadc_event_t event)¶

Function for retrieving the state of the SAADC event.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.
event – [in] Event to be checked.

Returns true

The event has been generated.

Returns false

The event has not been generated.

NRF_STATIC_INLINE void nrf_saadc_event_clear(NRF_SAADC_Type *p_reg, nrf_saadc_event_t event)¶

Function for clearing the specific SAADC event.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.
event – [in] SAADC event.

NRF_STATIC_INLINE uint32_t nrf_saadc_event_address_get(NRF_SAADC_Type const *p_reg, nrf_saadc_event_t event)¶

Function for getting the address of the specified SAADC event register.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.
event – [in] SAADC event.

Returns

Address of the specified SAADC event.

NRF_STATIC_INLINE void nrf_saadc_subscribe_set(NRF_SAADC_Type *p_reg, nrf_saadc_task_t task, uint8_t channel)¶

Function for setting the subscribe configuration for a given SAADC task.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.
task – [in] Task for which to set the configuration.
channel – [in] Channel through which to subscribe events.

NRF_STATIC_INLINE void nrf_saadc_subscribe_clear(NRF_SAADC_Type *p_reg, nrf_saadc_task_t task)¶

Function for clearing the subscribe configuration for a given SAADC task.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.
task – [in] Task for which to clear the configuration.

NRF_STATIC_INLINE void nrf_saadc_publish_set(NRF_SAADC_Type *p_reg, nrf_saadc_event_t event, uint8_t channel)¶

Function for setting the publish configuration for a given SAADC event.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.
event – [in] Event for which to set the configuration.
channel – [in] Channel through which to publish the event.

NRF_STATIC_INLINE void nrf_saadc_publish_clear(NRF_SAADC_Type *p_reg, nrf_saadc_event_t event)¶

Function for clearing the publish configuration for a given SAADC event.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.
event – [in] Event for which to clear the configuration.

NRF_STATIC_INLINE nrf_saadc_event_t nrf_saadc_limit_event_get(uint8_t channel, nrf_saadc_limit_t limit_type)¶

Function for getting the SAADC channel monitoring limit events.

Parameters

channel – [in] Channel number.
limit_type – [in] Low limit or high limit.

Returns

The SAADC channel monitoring limit event.

NRF_STATIC_INLINE void nrf_saadc_channel_input_set(NRF_SAADC_Type *p_reg, uint8_t channel, nrf_saadc_input_t pselp, nrf_saadc_input_t pseln)¶

Function for configuring the input pins for the specified SAADC channel.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.
channel – [in] Channel number.
pselp – [in] Positive input.
pseln – [in] Negative input. Set to NRF_SAADC_INPUT_DISABLED in single ended mode.

NRF_STATIC_INLINE void nrf_saadc_channel_pos_input_set(NRF_SAADC_Type *p_reg, uint8_t channel, nrf_saadc_input_t pselp)¶

Function for configuring the positive input pin for the specified SAADC channel.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.
channel – [in] Channel number.
pselp – [in] Positive input.

NRF_STATIC_INLINE void nrf_saadc_channel_limits_set(NRF_SAADC_Type *p_reg, uint8_t channel, int16_t low, int16_t high)¶

Function for setting the SAADC channel monitoring limits.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.
channel – [in] Channel number.
low – [in] Low limit.
high – [in] High limit.

NRF_STATIC_INLINE void nrf_saadc_int_set(NRF_SAADC_Type *p_reg, uint32_t mask)¶

Function for setting the configuration of SAADC interrupts.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.
mask – [in] Interrupts configuration to be set.

NRF_STATIC_INLINE void nrf_saadc_int_enable(NRF_SAADC_Type *p_reg, uint32_t mask)¶

Function for enabling specified SAADC interrupts.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.
mask – [in] Mask of interrupts to be enabled.

NRF_STATIC_INLINE uint32_t nrf_saadc_int_enable_check(NRF_SAADC_Type const *p_reg, uint32_t mask)¶

Function for checking if the specified interrupts are enabled.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.
mask – [in] Mask of interrupts to be checked.

Returns

Mask of enabled interrupts.

NRF_STATIC_INLINE void nrf_saadc_int_disable(NRF_SAADC_Type *p_reg, uint32_t mask)¶

Function for disabling specified interrupts.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.
mask – [in] Mask of interrupts to be disabled.

NRF_STATIC_INLINE uint32_t nrf_saadc_limit_int_get(uint8_t channel, nrf_saadc_limit_t limit_type)¶

Function for generating masks for SAADC channel limit interrupts.

Parameters

channel – [in] SAADC channel number.
limit_type – [in] Limit type.

Returns

Interrupt mask.

NRF_STATIC_INLINE bool nrf_saadc_busy_check(NRF_SAADC_Type const *p_reg)¶

Function for checking whether the SAADC is busy.

This function checks whether the analog-to-digital converter is busy with a conversion.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.

Returns true

The SAADC is busy.

Returns false

The SAADC is not busy.

NRF_STATIC_INLINE void nrf_saadc_enable(NRF_SAADC_Type *p_reg)¶

Function for enabling the SAADC.

The analog-to-digital converter must be enabled before use.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.

NRF_STATIC_INLINE void nrf_saadc_disable(NRF_SAADC_Type *p_reg)¶

Function for disabling the SAADC.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.

NRF_STATIC_INLINE bool nrf_saadc_enable_check(NRF_SAADC_Type const *p_reg)¶

Function for checking if the SAADC is enabled.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.

Returns true

The SAADC is enabled.

Returns false

The SAADC is not enabled.

NRF_STATIC_INLINE void nrf_saadc_buffer_init(NRF_SAADC_Type *p_reg, nrf_saadc_value_t *p_buffer, uint32_t size)¶

Function for initializing the SAADC result buffer.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.
p_buffer – [in] Pointer to the result buffer.
size – [in] Size of the buffer (in 16-bit samples).

NRF_STATIC_INLINE void nrf_saadc_buffer_pointer_set(NRF_SAADC_Type *p_reg, nrf_saadc_value_t *p_buffer)¶

Function for setting the SAADC result buffer pointer.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.
p_buffer – [in] Pointer to the result buffer.

NRF_STATIC_INLINE nrf_saadc_value_t *nrf_saadc_buffer_pointer_get(NRF_SAADC_Type const *p_reg)¶

Function for getting the SAADC result buffer pointer.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.

Returns

Pointer to the result buffer.

NRF_STATIC_INLINE uint16_t nrf_saadc_amount_get(NRF_SAADC_Type const *p_reg)¶

Function for getting the number of samples written to the result buffer since the previous START task.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.

Returns

Number of 16-bit samples written to the buffer.

NRF_STATIC_INLINE void nrf_saadc_resolution_set(NRF_SAADC_Type *p_reg, nrf_saadc_resolution_t resolution)¶

Function for setting the SAADC sample resolution.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.
resolution – [in] Bit resolution.

NRF_STATIC_INLINE nrf_saadc_resolution_t nrf_saadc_resolution_get(NRF_SAADC_Type const *p_reg)¶

Function for getting the SAADC sample resolution.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.

Returns

Sample resolution.

NRF_STATIC_INLINE void nrf_saadc_oversample_set(NRF_SAADC_Type *p_reg, nrf_saadc_oversample_t oversample)¶

Function for configuring the oversampling feature.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.
oversample – [in] Oversampling mode.

NRF_STATIC_INLINE nrf_saadc_oversample_t nrf_saadc_oversample_get(NRF_SAADC_Type const *p_reg)¶

Function for getting the oversampling feature configuration.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.

Returns

Oversampling configuration.

NRF_STATIC_INLINE uint32_t nrf_saadc_oversample_sample_count_get(nrf_saadc_oversample_t oversample)¶

Function for getting the sample count needed for one averaged result for a given oversampling configuration.

Parameters

oversample – [in] Oversampling configuration.

Returns

Sample count.

NRF_STATIC_INLINE void nrf_saadc_continuous_mode_enable(NRF_SAADC_Type *p_reg, uint16_t cc)¶

Function for enabling the continuous sampling.

This function configures the SAADC internal timer to automatically take new samples at a fixed sample rate. Trigger the START task to begin continuous sampling. To stop the sampling, trigger the STOP task.

Note

The internal timer can only be used when a single input channel is enabled.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.
cc – [in] Capture and compare value. Sample rate is 16 MHz/cc. Valid CC range is from 80 to 2047.

NRF_STATIC_INLINE bool nrf_saadc_continuous_mode_enable_check(NRF_SAADC_Type const *p_reg)¶

Function for checking if the continuous sampling is enabled.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.

Returns true

The continuous sampling is enabled.

Returns false

The continuous sampling is disabled.

NRF_STATIC_INLINE void nrf_saadc_continuous_mode_disable(NRF_SAADC_Type *p_reg)¶

Function for disabling the continuous sampling.

New samples can still be acquired by manually triggering the SAMPLE task or by PPI.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.

NRF_STATIC_INLINE void nrf_saadc_channel_init(NRF_SAADC_Type *p_reg, uint8_t channel, nrf_saadc_channel_config_t const *config)¶

Function for initializing the SAADC channel.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.
channel – [in] Channel number.
config – [in] Pointer to the channel configuration structure.

NRF_STATIC_INLINE void nrf_saadc_burst_set(NRF_SAADC_Type *p_reg, uint8_t channel, nrf_saadc_burst_t burst)¶

Function for configuring the burst mode for the specified channel.

Parameters

p_reg – [in] Pointer to the structure of registers of the peripheral.
channel – [in] Channel number.
burst – [in] Burst mode setting.

NRF_STATIC_INLINE nrf_saadc_value_t nrf_saadc_value_min_get(nrf_saadc_resolution_t resolution)¶

Function for getting the minimum value of the conversion result.

The minimum value of the conversion result depends on the configured resolution.

Parameters

resolution – [in] Bit resolution.

Returns

Minimum value of the conversion result.

NRF_STATIC_INLINE nrf_saadc_value_t nrf_saadc_value_max_get(nrf_saadc_resolution_t resolution)¶

Function for getting the maximum value of the conversion result.

The maximum value of the conversion result depends on the configured resolution.

Parameters

resolution – [in] Bit resolution.

Returns

Maximum value of the conversion result.

struct nrf_saadc_config_t¶

#include <nrf_saadc.h>

Analog-to-digital converter configuration structure.

Public Members

nrf_saadc_resolution_t resolution¶: Resolution of samples.

nrf_saadc_oversample_t oversample¶: Oversampling configuration.

nrf_saadc_value_t *buffer¶: Pointer to sample buffer.

uint32_t buffer_size¶: Size of the sample buffer.

struct nrf_saadc_channel_config_t¶

#include <nrf_saadc.h>

Analog-to-digital converter channel configuration structure.

Public Members

nrf_saadc_resistor_t resistor_p¶: Resistor value on positive input.

nrf_saadc_resistor_t resistor_n¶: Resistor value on negative input.

nrf_saadc_gain_t gain¶: Gain control value.

nrf_saadc_reference_t reference¶: Reference control value.

nrf_saadc_acqtime_t acq_time¶: Acquisition time.

nrf_saadc_mode_t mode¶: SAADC mode. Single-ended or differential.

nrf_saadc_burst_t burst¶: Burst mode configuration.