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42 lines
972 B
C
42 lines
972 B
C
/*
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* SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#pragma once
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#include "hal/adc_types.h"
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#include "esp_err.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct {
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adc_unit_t adc_n; // ADC Unit
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adc_channel_t channel; // ADC channel
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adc_atten_t atten; // ADC channel attenuation
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adc_bitwidth_t width; // ADC bit width, only used for ADC unit 1
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adc_ulp_mode_t ulp_mode; // ADC ULP Mode
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} ulp_adc_cfg_t; // ULP FSM ADC configuration parameters
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/**
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* @brief Initialize and calibrate the ADC for use by ULP FSM
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*
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* @param cfg Configuration parameters
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* @return esp_err_t ESP_OK for successful.
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*/
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esp_err_t ulp_adc_init(const ulp_adc_cfg_t *cfg);
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/**
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* @brief Deinitialize ADC after use with ULP, allowing it to be reclaimed
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*
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* @return esp_err_t ESP_OK for successful.
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*/
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esp_err_t ulp_adc_deinit(void);
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#ifdef __cplusplus
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}
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#endif
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