esp-idf/components/esp_adc_cal/component.mk

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# Component Makefile
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COMPONENT_ADD_INCLUDEDIRS := include
COMPONENT_OBJEXCLUDE += esp_adc_cal_esp32s2.o
esp_adc_cal: Added ADC calibration component Added component containg API that is able to correct raw ADC readings into a voltage in mV. Also provided a helper function that combines the process of getting the raw ADC1 reading then converting it to a voltage in mV. In doing so, the adc1_get_voltage() function of the ADC driver has been deprecated. Instead there is now adc1_get_raw to obtain the raw ADC1 reading, and adc1_to_voltage() that gets the raw reading and converts all in one function. Functions using the deprecated adc1_get_voltage() have also been updated to use adc1_get_raw(). Conversion is based on ADC characteristics. The characteristics are based on the ADC's v_ref, herefore the appropriate structure and functions have been provided to obtain the ADC characteristics. The existing ADC driver has also been modified by adding a function to route the internal ADC reference voltage to a GPIO allowing users to measure it manually. Relevant documentation has also been updated 2017-08-07 21:33:01 +08:00			`#`
			`# Component Makefile`
			`#`

driver/adc: support for esp32s2 adc calibration scheme ESP32 lets the user choose from using Vref, Lookup Table, and Two-Point Calibration. In ESP32S2 only two-point calibration is supported. This commit support these changes in idf. Closes https://github.com/espressif/esp-idf/issues/5455 2020-07-09 20:55:52 +08:00			`COMPONENT_ADD_INCLUDEDIRS := include`
			`COMPONENT_OBJEXCLUDE += esp_adc_cal_esp32s2.o`