GPIO Pull-Up/-Down Mode for STM32F412 Discovery Joystick

[MLa.3]

Hi,

I am looking for the correct pullup/pulldown mode for the joystick on the STM32F412G discovery board.

My instinct would say that with the attached board schematic the mode should be "pulldown".

But the default project in STM32CubeIDE configures it as "No pullup no pulldown".

Which one is correct?

[waclawek.jan · Accepted solution]

With the attached board schematic, pulldown.

> But the default project in STM32CubeIDE configures it as "No pullup no pulldown".

That may be an error. Have a look at the existing projects.

https://github.com/STMicroelectronics/STM32CubeF4/blob/4aba24d78fef03d797a82b258f37dbc84728bbb5/Drivers/BSP/STM32412G-Discovery/stm32412g_discovery.c#L390

JW