STM32f4291-DISC1 ADC

harry123 · ‎2023-10-10

I'm using ADC1 in stm32f429-DISC1 board but the PA2 pin that I'm using for one of my channels is not giving the correct values compared with other pins of different channels.

PA0 gives 900 as peak value whereas PA2 giving 150 for the same signal.

waclawek.jan · ‎2023-10-10

The 'F429 Disco is not the ideal platform for experimenting on all the mcu pins - for that, use a Nucleo. The onboard circuits take up quite a couple of pins.

In particular, PA2 is connected to the INT2 output of the MEMS gyro chip, and there's no jumper/solder bridge on that signal, i.e. it's unusable for analog input.

JW

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waclawek.jan · ‎2023-10-10

The 'F429 Disco is not the ideal platform for experimenting on all the mcu pins - for that, use a Nucleo. The onboard circuits take up quite a couple of pins.

In particular, PA2 is connected to the INT2 output of the MEMS gyro chip, and there's no jumper/solder bridge on that signal, i.e. it's unusable for analog input.

JW