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			56 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			56 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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|  * SPDX-FileCopyrightText: 2020-2022 Espressif Systems (Shanghai) CO LTD
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|  *
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|  * SPDX-License-Identifier: Apache-2.0
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|  */
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| 
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| #include <esp_types.h>
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| #include <esp_err.h>
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| 
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| #ifdef __cplusplus
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| extern "C" {
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| #endif
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| 
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| /**
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|  * @brief Get the RTC calibration efuse version
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|  *
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|  * @return Version of the stored efuse
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|  */
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| int esp_efuse_rtc_calib_get_ver(void);
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| 
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| /**
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|  * @brief Get the init code in the efuse, for the corresponding attenuation.
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|  *
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|  * @param version Version of the stored efuse
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|  * @param atten  Attenuation of the init code
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|  * @return The init code stored in efuse
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|  */
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| uint16_t esp_efuse_rtc_calib_get_init_code(int version, int atten);
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| 
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| /**
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|  * @brief Get the calibration digits stored in the efuse, and the corresponding voltage.
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|  *
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|  * @param version Version of the stored efuse
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|  * @param atten         Attenuation to use
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|  * @param out_digi      Output buffer of the digits
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|  * @param out_vol_mv    Output of the voltage, in mV
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|  * @return
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|  *      - ESP_ERR_INVALID_ARG: If efuse version or attenuation is invalid
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|  *      - ESP_OK: if success
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|  */
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| esp_err_t esp_efuse_rtc_calib_get_cal_voltage(int version, int atten, uint32_t* out_digi, uint32_t* out_vol_mv);
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| 
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| /**
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|  * @brief Get the temperature sensor calibration number delta_T stored in the efuse.
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|  *
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|  * @param tsens_cal Pointer of the specification of temperature sensor calibration number in efuse.
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|  *
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|  * @return ESP_OK if get the calibration value successfully.
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|  *         ESP_ERR_INVALID_ARG if can't get the calibration value.
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|  */
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| esp_err_t esp_efuse_rtc_calib_get_tsens_val(float* tsens_cal);
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| 
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| #ifdef __cplusplus
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| }
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| #endif
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