adc2_wifi_acquire() function

For WIFI module to claim the usage of ADC2. Other tasks will be forbidden to use ADC2 between ``adc2_wifi_acquire`` and ``adc2_wifi_release``. The WIFI module may have to wait for a short time for the current conversion (if exist) to finish.

Syntax

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Summary

Declaration

Definition

from adc_share_hw_ctrl.h:134

esp_err_t adc2_wifi_acquire(void);

Implemented in adc_share_hw_ctrl.c:176

Return value

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

References

Code

Location

esp_err_t adc2_wifi_acquire(void)

adc_share_hw_ctrl.c:176

esp_err_t adc2_wifi_acquire(void);

adc_share_hw_ctrl.h:134

Call Tree

adc2_wifi_acquire() calls 3 functions:

adc2_wifi_acquire()

esp_log_timestamp()

esp_log_write()

adc_lock_acquire()

Data Use

adc2_wifi_acquire() reads 7 variables:

esp_log_level_t::ESP_LOG_ERROR

esp_log_level_t::ESP_LOG_WARN

esp_log_level_t::ESP_LOG_INFO

esp_log_level_t::ESP_LOG_DEBUG

esp_log_level_t::ESP_LOG_VERBOSE

adc_unit_t::ADC_UNIT_2

TAG

adc2_wifi_acquire()

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Lifecycle

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