GPIO toggle delay

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GPIO toggle delay

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preddy
Contributor I

Hi,

I have programmed S32K144 to make a gpio pin high on main function and also configured it as pull down on processor expert. The problem is, after giving the controller 5v supply it was taking 16 milliseconds to make this pin high. How can I reduce this 16ms delay as minimum as possible.

 

 

Regards,

Prashanth Reddy

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2 Replies

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Robin_Shen
NXP TechSupport
NXP TechSupport

Hi 

Please check if the answers in the post are helpful: watchdog driver initialize of SDK cost too much time

Best Regards,
Robin
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Guofred
Contributor III

Hi Preddy ,

it's a pleasure to talk with you. i have some method  for you reference.

1)write code in machine/assembly language.

2)review the capability of the hardware , the GPIO's responds need some time, the PCB layout wire also need to reduce the stray capacitance if you don't have measure the GPIO pin directly.

thanks.

Best regards.

Guofred

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