esp-idf/components/esp_adc_cal/Kconfig
Darian Leung 0c9e2c0fba esp_adc_cal/Remove lookup table
This commit removes the lookup table mode due to inferior performance when compared
to linear mode under attenuation 0, 1 and 2. However small portions of the lookup table
are kept for the higher voltages of atten 3 (above ADC reading 2880). That voltage range
in atten 3 has non linear characteristics making the LUT performan better than linear mode.
2018-02-22 20:01:41 +08:00

28 lines
992 B
Plaintext

menu "ADC-Calibration"
config ADC_CAL_EFUSE_TP_ENABLE
bool "Use Two Point Values"
default "y"
help
Some ESP32s have Two Point calibration values burned into eFuse BLOCK3.
This option will allow the ADC calibration component to characterize the
ADC-Voltage curve using Two Point values if they are available.
config ADC_CAL_EFUSE_VREF_ENABLE
bool "Use eFuse Vref"
default "y"
help
Some ESP32s have Vref burned into eFuse BLOCK0. This option will allow
the ADC calibration component to characterize the ADC-Voltage curve using
eFuse Vref if it is available.
config ADC_CAL_LUT_ENABLE
bool "Use Lookup Tables"
default "y"
help
This option will allow the ADC calibration component to use Lookup Tables
to correct for non-linear behavior in 11db attenuation. Other attenuations
do not exhibit non-linear behavior hence will not be affected by this option.
endmenu # ADC-Calibration