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adc_calib: support calibration v2 on esp32c6

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This commit is contained in:
laokaiyao
2023-06-21 13:31:16 +08:00
parent 6f673e95c9
commit 57312e6e3e
19 changed files with 189 additions and 129 deletions
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9
components/esp_adc/esp32c2/adc_cali_line_fitting.c
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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
*/
@@ -58,9 +58,10 @@ esp_err_t adc_cali_create_scheme_line_fitting(const adc_cali_line_fitting_config
return ret;
}
//current version only accepts encoding version: `ESP_EFUSE_ADC_CALIB_VER`.
//current version only accepts encoding version: ESP_EFUSE_ADC_CALIB_VER_MIN <= adc_encoding_version <= ESP_EFUSE_ADC_CALIB_VER_MAX.
uint8_t adc_cali_version = esp_efuse_rtc_calib_get_ver();
ESP_RETURN_ON_FALSE(adc_cali_version == ESP_EFUSE_ADC_CALIB_VER, ESP_ERR_NOT_SUPPORTED, TAG, "Calibration required eFuse bits not burnt");
ESP_RETURN_ON_FALSE((adc_cali_version >= ESP_EFUSE_ADC_CALIB_VER_MIN) &&
(adc_cali_version <= ESP_EFUSE_ADC_CALIB_VER_MAX), ESP_ERR_NOT_SUPPORTED, TAG, "Calibration required eFuse bits not burnt");
adc_cali_scheme_t *scheme = (adc_cali_scheme_t *)heap_caps_calloc(1, sizeof(adc_cali_scheme_t), MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT);
ESP_RETURN_ON_FALSE(scheme, ESP_ERR_NO_MEM, TAG, "no mem for adc calibration scheme");
@@ -76,7 +77,7 @@ esp_err_t adc_cali_create_scheme_line_fitting(const adc_cali_line_fitting_config
uint32_t voltage_mv = 0;
uint32_t digi_val = 0;
esp_efuse_rtc_calib_get_cal_voltage(adc_cali_version, chars->unit_id, chars->atten, &digi_val, &voltage_mv);
ret = esp_efuse_rtc_calib_get_cal_voltage(adc_cali_version, chars->unit_id, chars->atten, &digi_val, &voltage_mv);
assert(ret == ESP_OK);
chars->coeff_a = coeff_a_scaling * voltage_mv / digi_val;
chars->coeff_b = 0;