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SourceVuESP-IDF Framework and ExamplesESP-IDFadc_lock_acquire()

adc_lock_acquire() function

Acquire ADC lock by unit The lock acquiring sequence will be: ADC1, ADC2, ...

Syntax

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Summary

Declaration

Definition

from adc_share_hw_ctrl.h:94

esp_err_t adc_lock_acquire(adc_unit_t adc_unit);

Implemented in adc_share_hw_ctrl.c:131

Arguments

Argument

Description

adc_unit

ADC unit ID

Return value

- ESP_OK: On success

Notes

If any of the locks are taken, this API will wait until the lock is successfully acquired.

References

Code

Location

Referrer

esp_err_t adc_lock_acquire(adc_unit_t adc_unit)

adc_share_hw_ctrl.c:131

esp_err_t adc_lock_acquire(adc_unit_t adc_unit);

adc_share_hw_ctrl.h:94

adc_lock_acquire(ADC_UNIT_1);

adc_continuous.c:275

adc_continuous_start()

adc_lock_acquire(ADC_UNIT_2);

adc_continuous.c:278

adc_continuous_start()

adc_lock_acquire(ADC_UNIT_1);

adc_dma_legacy.c:448

adc_digi_start()

adc_lock_acquire(ADC_UNIT_2);

adc_dma_legacy.c:451

adc_digi_start()

adc_lock_acquire(ADC_UNIT_2);

adc_share_hw_ctrl.c:180

adc2_wifi_acquire()

Call Tree

adc_lock_acquire() is called by 3 functions and calls 1 function:

adc2_wifi_acquire()

adc_digi_start()

adc_continuous_start()

adc_lock_acquire()

_lock_acquire()

Data Use

adc_lock_acquire() reads 2 variables:

adc_unit_t::ADC_UNIT_1

adc_unit_t::ADC_UNIT_2

adc_lock_acquire()

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