When I set a pin as ADC with DMA and enable DMA Continuous Request on this pin, this pin has 1V on it. No matter if the pin is connected to something or not. Any idea why?

[SalPaz]

I am using STM32G071 Nucleo Board, but this is also the case when I only use the uC IC and not Nucleo Board.

I am using CubeIDE and HAL programming.

Below is the link to the Nucleo board:

https://www.st.com/content/ccc/resource/technical/layouts_and_diagrams/schematic_pack/group0/89/90/f2/80/b8/a8/49/6d/MB1360-G071RB-C01_Schematic/files/MB1360-G071RB-C01_Schematic.pdf/jcr:content/translations/en.MB1360-G071RB-C01_Schematic.pdf