ANT HRM interrupt and sdcard ?

RE: ANT HRM interrupt and sdcard ?

Jørgen Holmefjord — Thu, 16 Dec 2021 16:23:05 GMT

If you put a breakpoint and single-step the code, the softdevice will likely assert once you continue execution.

If you want to put breakpoints, you can look into J-Link Monitor mode debugging.

Looks like the note regarding ANT and flash writes is still valid, yes.

RE: ANT HRM interrupt and sdcard ?

RixtronixLAB — Wed, 08 Dec 2021 04:08:47 GMT

Can it be like this ?

SDK 17.1.0: is the "Need to close the ANT channel to make it safe to write to flash" warning still valid?

https://devzone.nordicsemi.com/f/nordic-q-a/81707/sdk-17-1-0-is-the-need-to-close-the-ant-channel-to-make-it-safe-to-write-to-flash-warning-still-valid/339086#339086

RE: ANT HRM interrupt and sdcard ?

RixtronixLAB — Wed, 08 Dec 2021 01:56:16 GMT

Hi Jorgen, thanks for the reply,

Here's what I've done for debugging ANT, 340 softdevice and nRF52840 :

1.I put breakpoint at SDCARD_Flag=1 at void page0_data_log function, ant_hrm_page0.c
2.Run to cursor after SDCARD_flag=1;
3.it goes to NRF_BREAKPOINT_COND: , Line 100 app_error_weak.c
4.then it runs to line 104
NRF_LOG_WARNING("System reset");
NVIC_SystemReset();

it never returns to main() loop..
How can I rectify this ? How can I halt interrupt for a while from ANT sensor, write to SDcard then turn the interrupt back on ?

Thanks

RE: ANT HRM interrupt and sdcard ?

RixtronixLAB — Tue, 07 Dec 2021 03:19:40 GMT

Some screenshots :

it stuck and made error somewhere here :

E:\nRF5_SDK_17.0.2_d674dde\components\softdevice\common\nrf_sdh_ant.c Line 135 Stuck here...
for (nrf_section_iter_init(&iter, &sdh_ant_observers);
             nrf_section_iter_get(&iter) != NULL;
             nrf_section_iter_next(&iter))
        {
            nrf_sdh_ant_evt_observer_t * p_observer;
            nrf_sdh_ant_evt_handler_t    handler;

            p_observer = (nrf_sdh_ant_evt_observer_t *) nrf_section_iter_get(&iter);
            handler    = p_observer->handler;

            handler(&ant_evt, p_observer->p_context);
        }

Debug screen :

Debug screen video

Thanks

RE: ANT HRM interrupt and sdcard ?

RixtronixLAB — Tue, 07 Dec 2021 01:23:44 GMT

Hi Jorgen, thanks for the reply

Here's how the flag defined, in main :

extern volatile uint8_t SDCARD_Flag; //SDCARD interrupt flag 1 Dec 21 Rixtronix LAB

in ant_hrm_page_0_decode file :

volatile uint8_t SDCARD_Flag; //SDCARD interrupt flag 6 Dec 21 Rixtronix LAB

I haven't put breakpoints yet,

It's not stuck, it keeps running on ant_hrm_page_0_decode(), never returns to main loop...and the Flag is updated,

Any clues

RE: ANT HRM interrupt and sdcard ?

Jørgen Holmefjord — Mon, 06 Dec 2021 13:19:36 GMT

Hi,

How is the flag defined?

Have you verified if ant_hrm_page_0_decode() is called and the flag being set (for instance through debugging/breakpoints)?

Is your application stuck in some interrupt, preventing it from going back to the main-loop?

Best regards,
Jørgen