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RTT
Associate
March 11, 2019
Question

STM32L4S5 enabling internal pulldown

  • March 11, 2019
  • 2 replies
  • 982 views

Hi,

We are using PF3 for one of our output function and we need to pull that pin down internally. So we are configuring that pin as output enabling clock etc and using LL driver "LL_GPIO_SetPinPull" function with port and pin with argument "LL_GPIO_PULL_DOWN" to enable internal pull down. Also we can see the Register PUPDR3 getting configured properly after that in the Register window.

So it will be really helpful if anyone could confirm that this is the way to enable internal pull down for a pin, or is there any other register that we need to set.

Thanks

Rahul TTT

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2 replies

Tesla DeLorean
Guru
March 11, 2019

Are you observing some problem with this?​

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RTT
RTTAuthor
Associate
March 11, 2019

No problems as such. We just want to confirm that this is the way to enable the pulldown.