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Merge branch 'fix/fix_adc_cali_second_step_error' into 'master'

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fix(adc): fix ESP32-C5 adc calibration error

See merge request espressif/esp-idf!40107
This commit is contained in:
Gao Xu
2025-06-26 17:41:57 +08:00
parent 1bbf04cb4c c602e556ef
commit 7aca624322
1 changed files with 9 additions and 9 deletions
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18
components/esp_adc/esp32c5/curve_fitting_coefficients.c
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@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2024-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -28,10 +28,10 @@
const static uint64_t adc1_error_coef_atten[COEFF_VERSION_NUM][COEFF_GROUP_NUM][TERM_MAX][2] = {
/* Coefficients of calibration version 1 */
{
{{2941017829027464, 1e16}, {7368674918527, 1e16}, {0, 0}}, //atten0
{{3224276125615327, 1e16}, {5325658467636, 1e16}, {0, 0}}, //atten1
{{3307554632960901, 1e16}, {409244304226, 1e15}, {0, 0}}, //atten2
{{1463642578413965, 1e15}, {3349642363147, 1e15}, {11676836451, 1e16}}, //atten3
{{2941017829027464, 1e16}, {7368674918527, 1e16}, {0, 1}}, //atten0
{{3224276125615327, 1e16}, {5325658467636, 1e16}, {0, 1}}, //atten1
{{3307554632960901, 1e16}, {409244304226, 1e15}, {0, 1}}, //atten2
{{1463642578413965, 1e15}, {3349642363147, 1e15}, {11676836451, 1e16}}, //atten3
},
};
@@ -41,9 +41,9 @@ const static uint64_t adc1_error_coef_atten[COEFF_VERSION_NUM][COEFF_GROUP_NUM][
const static int32_t adc1_error_sign[COEFF_VERSION_NUM][COEFF_GROUP_NUM][TERM_MAX] = {
/* Coefficient sign of calibration version 1 */
{
{1, -1, 0}, //atten0
{1, -1, 0}, //atten1
{1, -1, 0}, //atten2
{-1, 1, 1}, //atten0
{-1, 1, 1}, //atten1
{-1, 1, 1}, //atten2
{1, -1, 1}, //atten3
},
};
@@ -54,7 +54,7 @@ void curve_fitting_get_second_step_coeff(const adc_cali_curve_fitting_config_t *
assert((adc_calib_ver >= ESP_EFUSE_ADC_CALIB_VER_MIN) &&
(adc_calib_ver <= ESP_EFUSE_ADC_CALIB_VER_MAX));
ctx->term_num = 2;
ctx->term_num = 3;
ctx->coeff = adc1_error_coef_atten[VER2IDX(adc_calib_ver)][config->atten];
ctx->sign = adc1_error_sign[VER2IDX(adc_calib_ver)][config->atten];
}