Help with BLE GPIOTE Interrupts with S110 on nRF51

RE: Help with BLE GPIOTE Interrupts with S110 on nRF51

ypearson — Wed, 02 Mar 2016 14:28:52 GMT

That worked for me ! Thanks.

RE: Help with BLE GPIOTE Interrupts with S110 on nRF51

Susheel Nuguru — Thu, 21 May 2015 06:05:06 GMT

can you please accept the answer, so we can close this case

RE: Help with BLE GPIOTE Interrupts with S110 on nRF51

kilianod — Thu, 21 May 2015 00:09:52 GMT

Thanks for your help, I got it working by removing the APP_GPIOTE functions from the BLE connection since I wasn't using them. Everything works fine now.

RE: Help with BLE GPIOTE Interrupts with S110 on nRF51

Susheel Nuguru — Wed, 20 May 2015 18:06:12 GMT

I think it is used for your buttons code inside bsp.c->app_buttons.c file. I think buttons are used to wakeup your device, after it goes to sleep after a certain amount of time of advertisement and if no connection is made. But your main problem you said was the your GPIOTE interrupt was not fired correctly, Removing the irq handler from app_gpiote should not cause this. Check inside app_gpiote when it enables and disables the interrupt, check if that it interfering with logics. I recommend you to comment out app_gpiote and buttons logic completely to check if that helps. If it helps then your logic and app_gpiote are having conflicts

RE: Help with BLE GPIOTE Interrupts with S110 on nRF51

kilianod — Wed, 20 May 2015 17:03:50 GMT

Thanks for clearing that up. My code is based off the BLE UART example in Version 8.0 of the SDK, I assume the following two lines in the BLE initialization code are using the GPIOTE handler, what do these functions do?

 APP_TIMER_INIT(APP_TIMER_PRESCALER, APP_TIMER_MAX_TIMERS,   APP_TIMER_OP_QUEUE_SIZE, false); 
 APP_GPIOTE_INIT(APP_GPIOTE_MAX_USERS);

RE: Help with BLE GPIOTE Interrupts with S110 on nRF51

Susheel Nuguru — Wed, 20 May 2015 08:23:00 GMT

This is not the correct way to do it. I am not sure where you are using app_gpiote here, but it wont function at all without that handler. Yo need to merge these two handlers into one if you have to use app_gpiote along with your use case

update: No, you dont need app_gpiote for BLE connections.

RE: Help with BLE GPIOTE Interrupts with S110 on nRF51

kilianod — Tue, 19 May 2015 18:04:13 GMT

Hi Krzysztof I tried that also but it didd'nt make a difference. Should I use that command before or after I initialize the BLE? Thanks

RE: Help with BLE GPIOTE Interrupts with S110 on nRF51

kilianod — Tue, 19 May 2015 18:01:46 GMT

Hi Aryan Yes, I removed the GPIOTE_IRQHandler in the app_gpiote.c file and replaced it with my own function. Was this the correct thing to do to use GPIOTE_IRQHandler? Do I actually need app_gpiote for BLE connections? Thanks

RE: Help with BLE GPIOTE Interrupts with S110 on nRF51

Krzysztof Chruscinski — Tue, 19 May 2015 11:59:27 GMT

Don't see priority setting of GPIOTE interrupt. Default priority is the highest (0) so it may conflict with SoftDevice. Try calling something like:

NVIC_SetPriority(GPIOTE_IRQn, APP_IRQ_PRIORITY_LOW);

You can also try to use nrf_drv_gpiote driver (present in SDK 8.1) or app_gpiote.

RE: Help with BLE GPIOTE Interrupts with S110 on nRF51

Susheel Nuguru — Tue, 19 May 2015 10:43:03 GMT

There is one GPIOTE_IRQHandler in app_gpiote.c file, did you modify that to support your app use case?