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feat(adc_cali): Add ADC calibration support for ESP32H2

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This commit is contained in:
gaoxu
2023-10-30 12:11:17 +08:00
parent 100ba9f375
commit 0ea0b39725
11 changed files with 251 additions and 18 deletions
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23
components/efuse/esp32h2/include/esp_efuse_rtc_calib.h
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@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -12,9 +12,10 @@ extern "C" {
#endif
//This is the ADC calibration value version burnt in efuse
#define ESP_EFUSE_ADC_CALIB_VER 1
#define ESP_EFUSE_ADC_CALIB_VER_MIN ESP_EFUSE_ADC_CALIB_VER
#define ESP_EFUSE_ADC_CALIB_VER_MAX ESP_EFUSE_ADC_CALIB_VER
#define ESP_EFUSE_ADC_CALIB_VER1 1
#define ESP_EFUSE_ADC_CALIB_VER_MIN ESP_EFUSE_ADC_CALIB_VER1
#define ESP_EFUSE_ADC_CALIB_VER_MAX ESP_EFUSE_ADC_CALIB_VER1
#define VER2IDX(ver) (ver - 1) // Version number to index number of the array
/**
* @brief Get the RTC calibration efuse version
@@ -33,10 +34,22 @@ int esp_efuse_rtc_calib_get_ver(void);
*/
uint32_t esp_efuse_rtc_calib_get_init_code(int version, uint32_t adc_unit, int atten);
/**
* @brief Get the channel specific calibration compensation
*
* @param version Version of the stored efuse
* @param adc_unit ADC unit. Not used, for compatibility. On ESP32H2, for calibration v1, both ADC units use the same init code (calibrated by ADC1)
* @param adc_channel ADC channel number
* @param atten Attenuation of the init code
* @return The channel calibration compensation value
*/
int esp_efuse_rtc_calib_get_chan_compens(int version, uint32_t adc_unit, uint32_t adc_channel, int atten);
/**
* @brief Get the calibration digits stored in the efuse, and the corresponding voltage.
*
* @param version Version of the stored efuse
* @param adc_unit ADC unit (not used on ESP32H2, for compatibility)
* @param atten Attenuation to use
* @param out_digi Output buffer of the digits
* @param out_vol_mv Output of the voltage, in mV
@@ -44,7 +57,7 @@ uint32_t esp_efuse_rtc_calib_get_init_code(int version, uint32_t adc_unit, int a
* - ESP_ERR_INVALID_ARG: If efuse version or attenuation is invalid
* - ESP_OK: if success
*/
esp_err_t esp_efuse_rtc_calib_get_cal_voltage(int version, int atten, uint32_t* out_digi, uint32_t* out_vol_mv);
esp_err_t esp_efuse_rtc_calib_get_cal_voltage(int version, uint32_t adc_unit, int atten, uint32_t* out_digi, uint32_t* out_vol_mv);
/**
* @brief Get the temperature sensor calibration number delta_T stored in the efuse.