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STM32 ADC Result error

Question asked by khoshnoud.borzoo on May 5, 2017
Latest reply on Jun 5, 2017 by Zhitai Liu

ADC result holds on 3072 value thus the input is not constant and changing

hello guys,

I've some problem with my STM32F103RE ADC converter.Converted result from analog input in all channels have errors around some specific values.I have a precise Vref of 3.0v and use all 16 channels of ADC1 but the problem is that when each converted input values reaches around 3072 (in Decimal) they holds on this value for some samples.All channels have this problem.In fact, the ADC1 raw value holds on some values like 3072 and 5816 and after some samples left they changes to its correct value.

Any kind of help would be appreciated.