Commit Graph

4 Commits

Author SHA1 Message Date
Wu Bo Wen
6a0951ecb2 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
2020-08-13 17:27:03 +08:00
Roland Dobai
37126d3451 Correct Kconfigs according to the coding style 2019-01-29 13:37:01 +01:00
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
Darian Leung
73cdfbfe79 esp_adc_cal/Add eFuse functionality
This commit updates the esp_adc_cal ocmponent to support new calibration methods
which utilize calibratoin values stored in eFuse. This commit includes LUT mode
2018-02-13 21:22:48 +08:00