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SourceVuESP-IDF Framework and ExamplesESP-IDFadc_digi_initialize()

adc_digi_initialize() function

Initialize the Digital ADC.

Syntax

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Summary

Declaration

Definition

esp_err_t adc_digi_initialize(const adc_digi_init_config_t *init_config);

Implemented in adc_dma_legacy.c:228

Arguments

Argument

Description

init_config

Pointer to Digital ADC initialization config. Refer to ``adc_digi_init_config_t``.

Return value

- ESP_ERR_INVALID_ARG If the combination of arguments is invalid. - ESP_ERR_NOT_FOUND No free interrupt found with the specified flags - ESP_ERR_NO_MEM If out of memory - ESP_OK On success

References

Code

Location

esp_err_t adc_digi_initialize(const adc_digi_init_config_t *init_config)

adc_dma_legacy.c:228

esp_err_t adc_digi_initialize(const adc_digi_init_config_t *init_config);

Call Tree

adc_digi_initialize() calls 12 functions:

adc_digi_initialize()

esp_intr_alloc()

esp_log_timestamp()

esp_log_write()

heap_caps_calloc()

xRingbufferCreate()

adc_apb_periph_claim()

adc_hal_dma_ctx_config()

adc_digi_gpio_init()

adc_digi_deinitialize()

i2s_platform_acquire_occupation()

esp_pm_lock_create()

Data Use

adc_digi_initialize() reads 26 variables and writes 7 variables:

adc_digi_initialize()

adc_hal_dma_ctx_t::rx_desc

adc_hal_digi_ctrlr_cfg_t::adc_pattern

adc_digi_context_t::rx_dma_buf

adc_digi_context_t::i2s_host

adc_digi_context_t::adc_i2s_dev

adc_digi_context_t::ringbuf_hdl

Class Tree

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Override Tree

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Implementations

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Instances

Lifecycle

adc_digi_initialize() frees 2 typess:

adc_digi_initialize()

adc_digi_pattern_config_t

adc_digi_context_t