AnsweredAssumed Answered

STM32F2xx single ADC channel with DMA mode value > 4095

Question asked by ice111 on Feb 4, 2016
Latest reply on Feb 4, 2016 by Clive One
I am getting ADC value on GPIOB Pin 1, using DMA, with continous conversion mode enable.

The ADC value that i obtain is > 4095, is this normal.
Below is the table of adc value that i obtain compare to the real voltage connected to that pin

Real voltage (V)     Raw Value
3.80                    37216
3.97                    39008
4.20                    41216

Why am i getting the raw value > 4095, is this behavior normal? i thought i should be getting 0 - 4095 (12 bit?)
From the table above, i could deduce that my conversion from raw to real is / 10000