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adc_cali: supported channel compensation of adc calibration on esp32c6

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This commit is contained in:
laokaiyao
2023-05-05 19:56:44 +08:00
parent 3550a2d185
commit ffb40a89d9
32 changed files with 366 additions and 57 deletions
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64
components/efuse/esp32c6/esp_efuse_rtc_calib.c
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@@ -8,26 +8,36 @@
#include "esp_efuse.h"
#include "esp_efuse_table.h"
#include "esp_efuse_rtc_calib.h"
#include "hal/efuse_hal.h"
/**
* @brief Get the signed value by the raw data that read from eFuse
* @param data The raw data that read from eFuse
* @param sign_bit The index of the sign bit, start from 0
*/
#define RTC_CALIB_GET_SIGNED_VAL(data, sign_bit) ((data & BIT##sign_bit) ? -(int)(data & ~BIT##sign_bit) : (int)data)
int esp_efuse_rtc_calib_get_ver(void)
{
uint32_t blk_ver_minor = 0;
esp_efuse_read_field_blob(ESP_EFUSE_BLK_VERSION_MINOR, &blk_ver_minor, ESP_EFUSE_BLK_VERSION_MINOR[0]->bit_count);
uint32_t blk_ver = efuse_hal_blk_version();
uint32_t cali_version = (blk_ver_minor == 1) ? ESP_EFUSE_ADC_CALIB_VER : 0;
if (!cali_version) {
uint32_t cali_version = 0;
if (blk_ver > 0) {
cali_version = ESP_EFUSE_ADC_CALIB_VER;
} else {
ESP_LOGW("eFuse", "calibration efuse version does not match, set default version to 0");
}
return blk_ver_minor;
return cali_version;
}
uint32_t esp_efuse_rtc_calib_get_init_code(int version, uint32_t adc_unit, int atten)
{
assert(version == ESP_EFUSE_ADC_CALIB_VER);
assert(atten >=0 && atten < 4);
(void) adc_unit;
const esp_efuse_desc_t** init_code_efuse;
assert(atten < 4);
if (atten == 0) {
init_code_efuse = ESP_EFUSE_ADC1_INIT_CODE_ATTEN0;
} else if (atten == 1) {
@@ -43,7 +53,45 @@ uint32_t esp_efuse_rtc_calib_get_init_code(int version, uint32_t adc_unit, int a
uint32_t init_code = 0;
ESP_ERROR_CHECK(esp_efuse_read_field_blob(init_code_efuse, &init_code, init_code_size));
return init_code + 1000; // version 1 logic
return init_code + 1600; // version 1 logic
}
int esp_efuse_rtc_calib_get_chan_compens(int version, uint32_t adc_unit, uint32_t adc_channel, int atten)
{
assert(version == ESP_EFUSE_ADC_CALIB_VER);
assert(atten < 4);
assert(adc_channel < SOC_ADC_CHANNEL_NUM(adc_unit));
const esp_efuse_desc_t** chan_diff_efuse = NULL;
switch (adc_channel) {
case 0:
chan_diff_efuse = ESP_EFUSE_ADC1_INIT_CODE_ATTEN0_CH0;
break;
case 1:
chan_diff_efuse = ESP_EFUSE_ADC1_INIT_CODE_ATTEN0_CH1;
break;
case 2:
chan_diff_efuse = ESP_EFUSE_ADC1_INIT_CODE_ATTEN0_CH2;
break;
case 3:
chan_diff_efuse = ESP_EFUSE_ADC1_INIT_CODE_ATTEN0_CH3;
break;
case 4:
chan_diff_efuse = ESP_EFUSE_ADC1_INIT_CODE_ATTEN0_CH4;
break;
case 5:
chan_diff_efuse = ESP_EFUSE_ADC1_INIT_CODE_ATTEN0_CH5;
break;
default:
chan_diff_efuse = ESP_EFUSE_ADC1_INIT_CODE_ATTEN0_CH6;
break;
}
int chan_diff_size = esp_efuse_get_field_size(chan_diff_efuse);
assert(chan_diff_size == 4);
uint32_t chan_diff = 0;
ESP_ERROR_CHECK(esp_efuse_read_field_blob(chan_diff_efuse, &chan_diff, chan_diff_size));
return RTC_CALIB_GET_SIGNED_VAL(chan_diff, 3) * (4 - atten);
}
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)
@@ -75,7 +123,7 @@ esp_err_t esp_efuse_rtc_calib_get_cal_voltage(int version, uint32_t adc_unit, in
uint32_t cal_vol = 0;
ESP_ERROR_CHECK(esp_efuse_read_field_blob(cal_vol_efuse, &cal_vol, cal_vol_efuse[0]->bit_count));
*out_digi = 2000 + ((cal_vol & BIT(9))? -(cal_vol & ~BIT9): cal_vol);
*out_digi = 1500 + RTC_CALIB_GET_SIGNED_VAL(cal_vol, 9);
*out_vol_mv = calib_vol_expected_mv;
return ESP_OK;
}