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Want to keep low level under POR state

Question asked by ko-hey on May 20, 2018
Latest reply on May 22, 2018 by igorpadykov

Hi all

 

I want to keep low level under POR for GPIO pin in i.MX6SoloX.

Because if the level change, it affect other external devices.

 

When power is supplied to NVCC_xxx with POR applied ("0") at power on, GPIO goes to "1" even if it is externally pulled down.

I'm testing with GPIO1_IO09[A19].

When I powered on the board, the pin keep low level under POR.

After that , power is supplied to NVCC_GPIO, the GPIO1_IO09[A19] pin goes to high level despite pins pulled down externally.

 

Can I keep low level under POR for GPIO pin ?

 

Ko-hey

 

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