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STM32F3 analog-digital converter

Abhar Nour

Hello.
I am using a STM32F303 development board and i am trying to use the 4 ADCs that incorporates.My first question is it's possible to use the 4 ADCs in the same time?. I want to measure four voltages variating from 0 to 3.6v on one analog input of each ADC.If anyone has an idea about how to do, i will be very grateful.
Best Regards

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  • 0 in reply to Jasson JFK

    Hey,

    For the Vref, i don't know its value. In STM32F302xx/STM32F303xx electrical characteristics, i have noticed that Vref is connected to Vdda, so i measured with millimeter its value on stm32f3-discovery and found 3V. Then, i changed this line(ADC1ConvertedValue *3300)/0xFFF by (ADC1ConvertedValue *3000)/0xFFF. So the problem was resolved.

    I don't know if my way to proceed is correct or no...

    Otherwise, i don't understand your point 1) and 2).

Reply
  • 0 in reply to Jasson JFK

    Hey,

    For the Vref, i don't know its value. In STM32F302xx/STM32F303xx electrical characteristics, i have noticed that Vref is connected to Vdda, so i measured with millimeter its value on stm32f3-discovery and found 3V. Then, i changed this line(ADC1ConvertedValue *3300)/0xFFF by (ADC1ConvertedValue *3000)/0xFFF. So the problem was resolved.

    I don't know if my way to proceed is correct or no...

    Otherwise, i don't understand your point 1) and 2).

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