Hi:
I used PTC15 as GPIO function, set input mode with pulldown register and enable Passive Filter . Then connect 1 HZ, 1KHZ, 1MHZ, 30 MHZ, 50 MHZ square wave to PTC15. But PTC 15 can detect high.
Will Passive Filter function filter high frenquency? Why PTC15 can detect high level? Is all GPIO has this fucntion?
Hi kkw,
Please refer S32K146_IO_Signal_Description_Input_Multiplexing.xlsx that is attached to the S32K-RM.
In IO Signal Table, column U shows the reset state of PCR_PFE (bit 4) and column V specifies which pin has the PFE bit configurable.
Unfortunately PTC15 does not support this feature.
Best Regards,
Robin
-------------------------------------------------------------------------------
Note:
- If this post answers your question, please click the "Mark Correct" button. Thank you!
- We are following threads for 7 weeks after the last post, later replies are ignored
Please open a new thread and refer to the closed one, if you have a related question at a later point in time.
-------------------------------------------------------------------------------