adc1_rtc_mode_acquire() function

For ADC1 to claim the usage of ADC1. Other tasks will be forbidden to use ADC1 between ``adc1_rtc_mode_acquire`` and ``adc1_i2s_release``. The ADC1 may have to wait for some time for the I2S read operation to finish.

Syntax

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Summary

Declaration

Definition

from adc1_private.h:37

esp_err_t adc1_rtc_mode_acquire(void);

Implemented in adc_legacy.c:357

Return value

- ESP_OK success - ESP_ERR_TIMEOUT reserved for future use. Currently the function will wait until success.

References

Code

Location

Referrer

esp_err_t adc1_rtc_mode_acquire(void)

adc_legacy.c:357

esp_err_t adc1_rtc_mode_acquire(void);

adc1_private.h:37

adc1_rtc_mode_acquire();

adc_legacy.c:386

adc1_get_raw()

Call Tree

adc1_rtc_mode_acquire() is called by 1 function and calls 5 functions:

adc1_get_raw()

adc1_rtc_mode_acquire()

vPortEnterCritical()

vPortExitCritical()

adc_ll_set_controller()

sar_periph_ctrl_adc_oneshot_power_acquire()

_lock_acquire()

Data Use

adc1_rtc_mode_acquire() reads 2 variables:

adc_unit_t::ADC_UNIT_1

adc_ll_controller_t::ADC_LL_CTRL_RTC

adc1_rtc_mode_acquire()

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