how to Read value of an output GPIO with NCS

RE: how to Read value of an output GPIO with NCS

Kenneth — Thu, 28 Apr 2022 13:11:26 GMT

There should be no problem to read a pin (even if it may for instance be used by a peripheral), you should get the level of the pin by calling for instance gpio_pin_get_raw() or gpio_port_get_raw().

Kenneth

RE: how to Read value of an output GPIO with NCS

qwertynoon — Thu, 28 Apr 2022 11:47:53 GMT

There were no precedents in history for reading OUTPUT GPIO STATE.

I would recomend to set variable

uint32_t GPIO_state = 0x00;

and then when you change the state of output you should write according bit in GPIO_state variable.

GPIO_state |=  (1 << gpio_number); // 0 to 1 state

GPIO_state &= ~(1 << gpio_number); // 1 to 0 state

There is no other way for me.

RE: how to Read value of an output GPIO with NCS

helen — Thu, 28 Apr 2022 01:01:50 GMT

Hello，

The post you gave is about nRF5 SDK, what I mentioned is nRF connect SDK.

RE: how to Read value of an output GPIO with NCS

qwertynoon — Wed, 27 Apr 2022 14:10:57 GMT

https://devzone.nordicsemi.com/f/nordic-q-a/11275/read-gpio-output-state