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feat(adc): support ADC calibration on ESP32P4

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This commit is contained in:
gaoxu
2025-01-06 11:04:29 +08:00
parent cfa487b4e0
commit 1b49a1674e
13 changed files with 433 additions and 90 deletions
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19
components/efuse/esp32p4/include/esp_efuse_rtc_calib.h
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@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2022-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -12,7 +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_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
@@ -31,6 +34,16 @@ 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. ESP32H2 only supports one ADC unit
* @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.
*
@@ -42,7 +55,7 @@ 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.