esp-idf/components/driver/include/esp_private/adc_cali.h
2021-05-24 01:53:34 +02:00

34 lines
709 B
C

/*
* SPDX-FileCopyrightText: 2020-2021 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
// Internal header for calibration, don't use in app
#include "sdkconfig.h"
#include "esp_err.h"
#include "hal/adc_hal.h"
#ifdef __cplusplus
extern "C" {
#endif
#if !CONFIG_IDF_TARGET_ESP32
/**
* @brief Calibrate the offset of ADC. (Based on the pre-stored efuse or actual calibration)
*
* @param adc_n ADC unit to calibrate
* @param channel Target channel if really do calibration
* @param atten Attenuation to use
* @return Always ESP_OK
*/
extern esp_err_t adc_cal_offset(adc_ll_num_t adc_n, adc_channel_t channel, adc_atten_t atten);
#endif
#ifdef __cplusplus
}
#endif