Hi Yaran,
Are you using the fsl_gpio Component to configure the PTA11 pin?
Attached project is using that Component to toggle the orange LED periodically.
If using Init_GPIO, did you enable the Clock gate setting?
I'm using the Init_GPIO to toggle the PTA11 blue LED as example too.
If you are not using that Component, how are you trying to gain access to PTA11?
Is the PORTA clock enabled?
Could some other code be using PTA11?
Regards,
David