RE: nRF51822 IO P0.01‘s Problem

Karl Ylvisaker — Mon, 23 Mar 2020 09:52:51 GMT

Hi,

No problem at all, I am happy to help!
I am glad we were able to resolve your issue.

Let me know if you should encounter any more issues in the future.
Best of luck with your development!

Best regards,
Karl

RE: nRF51822 IO P0.01‘s Problem

yzfy_12345 — Sat, 21 Mar 2020 05:00:25 GMT

Hi:

Thank you for your reply. I have been find the problem.

That's because I set the P0.01 into AIN Mode When I powerup the device in the "Battery_Sample_Function()" ;. So I lose to control the Pin of P0.01.

Thank you very much

RE: nRF51822 IO P0.01‘s Problem

Karl Ylvisaker — Fri, 20 Mar 2020 10:24:01 GMT

Hi,

That does sound strange. Could you elaborate for me, what do you mean when you say that it is out of your control - are you not able to toggle it after 30 minutes, or does it seemingly toggle on its own?
I do not know the contents of your Multi_LED_Ctr_Function() but I am guessing it is supposed to toggle the LED in question?
Do you have any other event happening around the 30 minute mark?

[quote user=""] I try to reinitial the IO, But it is invalid[/quote]

What do you mean by this, how are you reinitializing the IO, and how does it come back invalid?

Perhaps you would consider sharing the entire source code, so that I may take a closer look.

[quote user=""][/quote]

nrf_gpio_cfg_output(1);

NRF_GPIO->OUTSET = (1<<1);

NRF_GPIO->OUTCLR = (1<<1);

I highly recommend that you avoid using magic numbers, and instead use the appropriate defines - it significantly increases readability and makes debugging easier in general.
If you do not insist on changing the registers manually, I would also recommend that you check out the provided libraries for easier configuration and use.
In your case, you could check out the nrf_gpio.h module, to see the provided GPIO configuration and usage functions.

Best regards,
Karl