How to set the GPIO of NRF52840 to high resistance state？

[wanwandeyueliang]

I want to set the GPIO of NRF52840 to the high resistance state. How do I set the GPIO of NRF52840 to the high resistance state,  please help me,thanks!

[wanwandeyueliang]

Thank you very much, the problem had solved, my code is correct.