STM32L452 ADC shifted

STM32L452 ADC1 single-mode works with DMA1.

ADC results are higher than the actual Voltage by around 25%.

Any possible directions?

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IP.2Best answer

Associate II

Problem found: The macro __LL_ADC_CALC_DATA_TO_VOLTAGE was missing.

Ensure ADC is calibrated. Ensure VDDA and VREF+ voltages are stable and have sufficient capacitance.

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IP.2AuthorBest answer

Associate II

Problem found: The macro __LL_ADC_CALC_DATA_TO_VOLTAGE was missing.

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