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adc_i2s: solve the i2s_adc issue when using wifi

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This commit is contained in:
Cao Sen Miao
2020-12-03 13:58:24 +08:00
parent d890a516a1
commit d6f0b4af6f
6 changed files with 205 additions and 28 deletions
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29
components/driver/include/driver/adc_common.h
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@@ -90,14 +90,32 @@ typedef enum {
/**
* @brief Enable ADC power
* @deprecated Use adc_power_acquire and adc_power_release instead.
*/
void adc_power_on(void);
void adc_power_on(void) __attribute__((deprecated));
/**
* @brief Power off SAR ADC
* This function will force power down for ADC
* @deprecated Use adc_power_acquire and adc_power_release instead.
* This function will force power down for ADC.
* This function is deprecated because forcing power ADC power off may
* disrupt operation of other components which may be using the ADC.
*/
void adc_power_off(void);
void adc_power_off(void) __attribute__((deprecated));
/**
* @brief Increment the usage counter for ADC module.
* ADC will stay powered on while the counter is greater than 0.
* Call adc_power_release when done using the ADC.
*/
void adc_power_acquire(void);
/**
* @brief Decrement the usage counter for ADC module.
* ADC will stay powered on while the counter is greater than 0.
* Call this function when done using the ADC.
*/
void adc_power_release(void);
/**
* @brief Initialize ADC pad
@@ -199,6 +217,8 @@ esp_err_t adc1_config_width(adc_bits_width_t width_bit);
* the input of GPIO36 and GPIO39 will be pulled down for about 80ns.
* When enabling power for any of these peripherals, ignore input from GPIO36 and GPIO39.
* Please refer to section 3.11 of 'ECO_and_Workarounds_for_Bugs_in_ESP32' for the description of this issue.
* As a workaround, call adc_power_acquire() in the app. This will result in higher power consumption (by ~1mA),
* but will remove the glitches on GPIO36 and GPIO39.
*
* @note Call ``adc1_config_width()`` before the first time this
* function is called.
@@ -312,6 +332,9 @@ esp_err_t adc2_config_channel_atten(adc2_channel_t channel, adc_atten_t atten);
* the input of GPIO36 and GPIO39 will be pulled down for about 80ns.
* When enabling power for any of these peripherals, ignore input from GPIO36 and GPIO39.
* Please refer to section 3.11 of 'ECO_and_Workarounds_for_Bugs_in_ESP32' for the description of this issue.
* As a workaround, call adc_power_acquire() in the app. This will result in higher power consumption (by ~1mA),
* but will remove the glitches on GPIO36 and GPIO39.
*
*
* @note ESP32:
* For a given channel, ``adc2_config_channel_atten()``