RE: Do GPIO pins always need an interrupt + handler?

Nick_RA — Wed, 08 Mar 2023 13:33:25 GMT

OK great, thanks

Frank Viganske — Wed, 08 Mar 2023 11:37:53 GMT

Hi,

to read a GPIO only once at startup you don't need an interrupt handler. You can use the functions documented here: https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.1.0/group__nrf__gpio.html

For example to configure a single pin as input you can use nrf_gpio_cfg_input (uint32_t pin_number, nrf_gpio_pin_pull_t pull_config)

then read the pin with nrf_gpio_pin_read (uint32_t pin_number), and then disable it with nrf_gpio_cfg_default (uint32_t pin_number).

Best regards

Frank