esp-idf/components/ulp/ulp_riscv/include/ulp_riscv_adc.h

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/*
* SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#pragma once
#include "hal/adc_types.h"
#include "esp_err.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef struct {
adc_unit_t adc_n; // ADC Unit
adc_channel_t channel; // ADC channel
adc_atten_t atten; // ADC channel attenuation
adc_bitwidth_t width; // ADC bit width, only used for ADC unit 1
} ulp_riscv_adc_cfg_t; // ULP Riscv ADC configuration parameters
/**
* @brief Initialize and calibrate the ADC for use by ULP RISCV
*
* @param cfg Configuration parameters
* @return esp_err_t ESP_OK for successful.
*/
esp_err_t ulp_riscv_adc_init(const ulp_riscv_adc_cfg_t *cfg);
#ifdef __cplusplus
}
#endif