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There are no instructions for calibrating ADC in STM32F407

Question asked by Patrick Morwald on Mar 19, 2018
Latest reply on Mar 19, 2018 by STOne -32

Hi, 

after googling around a while and reading the STM32 manual section for the ADC, i am frustrated about the lack of such a section in the manual.

 

So how IS the ADC in the STM32F4 actually calibrated??

 

EDIT:

 

I found this thread: 

 

STM32 how to use VREF to Calculate the actual VDDA value 

 

However, if i do so on my STM32F407VGT (Discovery Board), i dont have a VREFINT_CAL value.

 

Should i just measure VREFINT on Channel 17 of the ADC and assume this is exactly 1.25 V?

 

Thanks,

 

Patrick

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