Formula to calculate ADC_VREF fuse

ginodecock
Posts: 24
Joined: Thu Jun 29, 2017 7:10 pm

Formula to calculate ADC_VREF fuse

Postby ginodecock » Mon Mar 12, 2018 6:01 pm

Hi,

Using the function adc2_vref_to_gpio(GPIO_NUM_25) I was able to measure the internal reference voltage.

In my case it is 1,127V.

What is the formula to calculate the value that I have to enter for the efuse using espefuse.py?

The following doesn't work
./espefuse.py --port COM21 burn_efuse ADC_VREF 1127

Thanks,
Gino


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