0c9e2c0fba
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.
28 lines
992 B
Plaintext
28 lines
992 B
Plaintext
menu "ADC-Calibration"
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config ADC_CAL_EFUSE_TP_ENABLE
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bool "Use Two Point Values"
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default "y"
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help
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Some ESP32s have Two Point calibration values burned into eFuse BLOCK3.
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This option will allow the ADC calibration component to characterize the
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ADC-Voltage curve using Two Point values if they are available.
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config ADC_CAL_EFUSE_VREF_ENABLE
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bool "Use eFuse Vref"
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default "y"
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help
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Some ESP32s have Vref burned into eFuse BLOCK0. This option will allow
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the ADC calibration component to characterize the ADC-Voltage curve using
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eFuse Vref if it is available.
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config ADC_CAL_LUT_ENABLE
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bool "Use Lookup Tables"
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default "y"
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help
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This option will allow the ADC calibration component to use Lookup Tables
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to correct for non-linear behavior in 11db attenuation. Other attenuations
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do not exhibit non-linear behavior hence will not be affected by this option.
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endmenu # ADC-Calibration
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