GPIO Pin as INPUT in NRF5340

RE: GPIO Pin as INPUT in NRF5340

Amanda Hsieh — Mon, 25 May 2020 08:43:46 GMT

Hi,

Could you test the 249716_hello_world/build/zephyr/zephyr.hex in the devzone.nordicsemi.com/.../249716_5F00_hello_5F00_world.zip with the following command?

nrfjprog -f NRF53 --eraseall
nrfjprog -f NRF53 --program zephyr.hex
nrfjprog --pinreset

If you have a wire connect the Pin 0.10 and GND, you will see Low. Connecting the Pin 0.10 and the VDD on PDK, you will see HIGH.

-Amana H.

RE: GPIO Pin as INPUT in NRF5340

Uncle_Jack — Wed, 20 May 2020 15:01:41 GMT

Hi, Amanda.

Thank you for reply.

[quote userid="77782" url="~/f/nordic-q-a/61490/gpio-pin-as-input-in-nrf5340/250669"]modify "if(old != st1)" to "if(old != status)"[/quote]

I changed name of variable from "st1" to "status" for the readability of the code. But at the above place it was left "st1" by mistake, updated in OP. sorry my bad. So that's not issue I am sure.

[quote userid="77782" url="~/f/nordic-q-a/61490/gpio-pin-as-input-in-nrf5340/250669"]remove "CONFIG_TRUSTED_EXECUTION_NONSECURE=y"[/quote]

I tried removing above line but result is still same.

Thank you.

RE: GPIO Pin as INPUT in NRF5340

Amanda Hsieh — Tue, 19 May 2020 10:51:04 GMT

Hi,

If you modify "if(old != st1)" to "if(old != status)" and remove "CONFIG_TRUSTED_EXECUTION_NONSECURE=y" in the prj.conf, it should work.

-Amandn H.

RE: GPIO Pin as INPUT in NRF5340

Uncle_Jack — Mon, 18 May 2020 13:49:35 GMT

And yes here is my prj.conf file content -

CONFIG_GPIO=y
CONFIG_SERIAL=y
CONFIG_TRUSTED_EXECUTION_NONSECURE=y
CONFIG_UART_INTERRUPT_DRIVEN=y
CONFIG_UART_0_NRF_UARTE=y