NRFX driver interrupt freeze the MCU

RE: NRFX driver interrupt freeze the MCU

Jared — Mon, 07 Sep 2020 09:09:15 GMT

Hi,

Happy that you at least found a solution for it. Not sure why this is defined such in Mbed, you would have to ask them 🙂

Good luck with your project.

best regards

Jared

RE: NRFX driver interrupt freeze the MCU

FFischer — Fri, 04 Sep 2020 12:54:08 GMT

Hi Jared!

Yes, I changed the sdk_config.h file to enabled the timers, GPIOTE and PPI.

Yesterday I try to compile the same program in SEGGER Embedded Studio and works fine. I think that the problem in mbed is related to the startup_nrf52832.S file. In this file the IRQ handlers are difined as: TIMER3_IRQHandler_v and TIMER4_IRQHandler_v (I don't know why).

I will try to learn more about the startup file because I don't know how understand the file.

Thanks!

RE: NRFX driver interrupt freeze the MCU

Jared — Fri, 04 Sep 2020 09:45:32 GMT

Hi.

I'm not sure about Mbed as it's an external environment but in our SDK we require you to enable the peripheral in the sdk config file. We have timers and GPIOTE + PPI examples in the SDK. Could you see if you're able to reproduce it with our SDK?

regards

Jared

RE: NRFX driver interrupt freeze the MCU

FFischer — Wed, 02 Sep 2020 14:10:08 GMT

Yes! I set a breakpoint on the handler and never stop the program. Also, I try to blink the led2 in the handler, but never change his state. Also, I see that the led1 stop to blink.

I'm wondering if I need enable the clock for the periphals o someting else. But I can't find more information. There are any tutorial in hardware timers?

Thanks!

RE: NRFX driver interrupt freeze the MCU

Jared — Wed, 02 Sep 2020 13:49:49 GMT

How did you verify that the handler isn't called? Have you set a breakpoint in the handler and used the debugger? Could you try removing the sleep in the loop in main

RE: NRFX driver interrupt freeze the MCU

FFischer — Tue, 01 Sep 2020 14:55:45 GMT

Hi Jared! Thanks for the reply.

I tried with LOW POWER MODE, but still don't work.

Maybe my english don't help, but the counter works well, I have problems with the timer, the callback function never is called.

Thanks

RE: NRFX driver interrupt freeze the MCU

Jared — Tue, 01 Sep 2020 14:02:45 GMT

Hi.

Could you try to set the counter_cfg.mode to NRF_TIMER_MODE_LOW_POWER_COUNTER (or the similar definition used in MBED). The counter has been deprecated.

best regards

Jared