nrf_gpio_pin_read() always returns 0

[Kerry Calvert]

on the nrf52832 I am configuring pin 10 as an input.  There is either 0 or 3.1V on the pin depending on whether a charger is connected to the board.

When I read the state of the ping with nrf_gpio_pin_read(), the value is always 0, even when I have probed the chip and see the 3.1V is there.

I see other reports of similar problems but they all seem related to switching between input and output on the pin, which I am not doing.

I am configuring the port as input with nrf_gpio_config_input.

Is there some other configuration besides the nrf_cpio_cfg_input() that is needed to make the nrf_gpio_pin_read() collect good values?

[RK]

have you set pin 10 NOT to be an NFC pin? Pins 9 and 10 are NFC by default. Please search the forums for CONFIG_NFCT_PINS_AS_GPIOS. This seems to come up every week. 

[Kerry Calvert]

Thanks, but adding that compile flag did not solve the issue.  

[Kerry Calvert]

Well, actually it did fix it.  I had been mucking around with the pin setup and had tried making it a watcher.  Removing that in conjunction with the CONFIG_NFCT... fixed it.

THANKS!