NRF52840 GPIO P1.xx configuration problem

RE: NRF52840 GPIO P1.xx configuration problem

lbe — Mon, 07 Jan 2019 09:42:20 GMT

Thanks a lot! This solved my issue, your help was really appreciated!

RE: NRF52840 GPIO P1.xx configuration problem

Jørgen Holmefjord — Mon, 07 Jan 2019 09:32:46 GMT

The NRF_GPIO_PIN_MAP macro is intended for use with the GPIO HAL functions. These functions will map the pin to the correct port.

In your code, you have hardcoded which GPIO port register to write to, by using NRF_GPIO register. NRF_GPIO register is deprecated and redefined as NRF_P0. If you want to control pins on GPIO port 1, you need to write to NRF_P1 register.

RE: NRF52840 GPIO P1.xx configuration problem

lbe — Mon, 07 Jan 2019 09:09:31 GMT

Hi,

I am working on SDK version 15.0.0, I did not find (and honestly didn't look for, though) any existing example using specific pins I mentioned and the way I control the GPIOs is pretty simple:

when I want to see the logic analyzer line down, I call

NRF_GPIO->OUTCLR = (NRF_GPIO->OUT & (1UL << DEBUG1_PIN));

when I want to see the logic analyzer line up, I call

NRF_GPIO->OUTSET = (NRF_GPIO->OUT | (1UL << DEBUG1_PIN));

As said before, this works perfectly when for example

#define DEBUG1_PIN NRF_GPIO_PIN_MAP(0,29)

but stops working if I define the pin as

#define DEBUG1_PIN NRF_GPIO_PIN_MAP(1,12)

Of course, I change the proper logic analyzer connection to the correct board pin.

It seems to me that somehow the port 1 pins are not "activated"....

If you can point me to an existing sample using port 1 pins I would be glad to test it.

RE: NRF52840 GPIO P1.xx configuration problem

Jørgen Holmefjord — Wed, 02 Jan 2019 10:27:20 GMT

Hi,

Which SDK version are you using?

How are you controlling the GPIOs (set, clear, etc)?

Have you tested one of the example projects for nRF52840 in the SDK, to check if the issue is related to your project or how you control the GPIOs?

Best regards,
Jørgen

RE: NRF52840 GPIO P1.xx configuration problem

Hung Bui — Fri, 28 Dec 2018 10:32:00 GMT

Dear customer,

Due to limited staff during the holiday period, we unfortunately can't handle your case before we get back to the normal staff by the first week of January 2019. We are sorry indeed for the delay. We wish you a great holiday and a Happy New Year 2019.

Best Regards,

Nordic Tech Support Team