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esp_adc: support adc calibration on esp32c2

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This commit is contained in:
Armando
2022-09-08 19:10:46 +08:00
parent e736abdc03
commit ccfbba5994
8 changed files with 288 additions and 45 deletions
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34
components/efuse/esp32c2/include/esp_efuse_rtc_calib.h
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@@ -11,6 +11,40 @@
extern "C" {
#endif
//This is the ADC calibration value version burnt in efuse
#define ESP_EFUSE_ADC_CALIB_VER 1
/**
* @brief Get the RTC calibration efuse version
*
* @return Version of the stored efuse
*/
int esp_efuse_rtc_calib_get_ver(void);
/**
* @brief Get the init code in the efuse, for the corresponding attenuation.
*
* @param version Version of the stored efuse
* @param adc_unit ADC unit
* @param atten Attenuation of the init code
* @return The init code stored in efuse
*/
uint32_t esp_efuse_rtc_calib_get_init_code(int version, uint32_t adc_unit, 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
* @param atten Attenuation to use
* @param out_digi Output buffer of the digits
* @param out_vol_mv Output of the voltage, in mV
* @return
* - ESP_ERR_INVALID_ARG: If `ADC_ATTEN_DB_2_5` or `ADC_ATTEN_DB_6` is used
* - ESP_OK: if success
*/
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.
*