About Yuval Klein

Yuval Klein · 2018-02-13

Posted on February 13, 2018 at 16:09Hi,I using STM32F103 and I'm measuring voltage on PB1 (AIN9) using ADC1.As seen in the table below the ADC readouts in 1.59V and 1.34V are basically the same. It seems the turn point is around 1.49V.Can anyone hel...

Yuval Klein · 2018-02-14

Posted on February 14, 2018 at 16:30I fond the problem, my Vdd was dropping as well and in faster rate then the voltage in the Ain. I solved it by measureing the VrefInt and using it as a reference to the ADC measurement. Thank you everyone for the ...

Yuval Klein · 2018-02-14

Posted on February 14, 2018 at 16:27I'm using STM32F103 64 pin package where there are no Vref+ and Vref- pins there are internally connected to Vdd and Vss respectively.

Yuval Klein · 2018-02-13

Posted on February 13, 2018 at 17:35This is the code I'm using to initiate the ADC:/* Configure PB.00 and PB.01 (Channel8 and Channel9) as analog input -----*/ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1; GPIO_InitStructure.GPIO_Mode = GPI...

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ADC does not read voltage linearly

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