nrf52832 gpiote no trigger after running awhile

[jyulin84]

I'm using nrf52832 with st25r3911b to let device read & write NFC card.

I modified nRF5SDK160098a08e2\examples\ble_central\ble_app_uart_c\pca10040\s132\ses to do this.

To communicate with st25r3911, there are spi & a interrupt pin.

whether I set GPIOTE_CONFIG_IN_SENSE_LOTOHI(false); or GPIOTE_CONFIG_IN_SENSE_LOTOHI(true);

they are the same problem.

Strangely , it is not that there is no interrupt signal at the beginning.
After the problem occurs,there are still a few interruptions.

void in_pin_handler(nrfx_gpiote_pin_t pin, nrf_gpiote_polarity_t action) {
    if ((pin == NFC_INT_Pin)&&(nfc_int)) {
        void (*pfunction)(void);
        if ((pfunction = (void (*)(void))callbackArray[function_num]) != NULL)
            pfunction();
    }
}

void nfc_gpiote_lo(void) {
    ret_code_t err_code;
    if (!nrf_drv_gpiote_is_init()) {
        err_code = nrf_drv_gpiote_init();
        APP_ERROR_CHECK(err_code);
    }

    nrf_drv_gpiote_in_config_t config = GPIOTE_CONFIG_IN_SENSE_LOTOHI(false); //no accuracy
    config.pull = NRF_GPIO_PIN_NOPULL;
    config.skip_gpio_setup = false;
    err_code = nrf_drv_gpiote_in_init(NFC_INT_Pin, &config, in_pin_handler);
    nrf_drv_gpiote_in_event_enable(NFC_INT_Pin, true);
    nfc_int=true;
    APP_ERROR_CHECK(err_code);
}
//if triggered,in_pin_handler()'s pfunction() will do st25r3911Isr();
void st25r3911Isr( void )
{
	  isr_times++;
    st25r3911CheckForReceivedInterrupts();
    
    if (NULL != st25r3911interrupt.callback)
        st25r3911interrupt.callback();
}

the problem will occur after doing rfalInitialize(),but isr_times equals to previous action rfalWakeUpModeStop() or equals to 0.

If the problem occurs, I cannot Inventory ISO15693 card at all.

I checked nfc interrupt pin with Oscilloscope.it works fine.

I also try not to scan, but not help this problem.

the problem is,why nrf52832 no normal(enough) trigger after running a while?

how to fix it?

[0m<info> app: NFC Wake up! isr = 1[0m.........................................................card near
[0m<info> app: rfalWakeUpModeStop()=0! isr = 1,scan_times=0[0m
[0m<info> app: rfalInitialize()=0! isr = 6,scan_times=2[0m
[0m<info> app: iso15693Initialize()=0! isr = 7,scan_times=2[0m
[0m<info> app: iso15693Inventory()=0! isr = 40,scan_times=2[0m
[0m<info> app: iso15693WriteSingleBlock()=4[0m............................................detect ISO15693 card
[0m<info> app: iso15693WriteSingleBlock()=4[0m
[0m<info> app: iso15693WriteSingleBlock()=4[0m
[0m<info> app: iso15693ReadMultipleBlocks()=4[0m
[0m<info> app: iso15693Deinitialize()=0! isr = 54,scan_times=2[0m
[0m<info> app: rfalDeinitialize()=0! isr = 54,scan_times=2[0m
[0m<info> app: rfalInitialize()=0! isr = 5,scan_times=1[0m
[0m<info> app: iso15693Initialize()=0! isr = 6,scan_times=1[0m
[0m<info> app: iso15693Inventory()=16! isr = 38,scan_times=1[0m.................no ISO15693 card detect
[0m<info> app: iso15693Deinitialize()=0! isr = 38,scan_times=1[0m
[0m<info> app: rfalDeinitialize()=0! isr = 38,scan_times=1[0m
[0m<info> app: rfalInitialize()=0! isr = 5,scan_times=0[0m
[0m<info> app: iso15693Initialize()=0! isr = 6,scan_times=0[0m
[0m<info> app: iso15693Inventory()=16! isr = 38,scan_times=0[0m
[0m<info> app: iso15693Deinitialize()=0! isr = 38,scan_times=0[0m
[0m<info> app: rfalDeinitialize()=0! isr = 38,scan_times=0[0m
[0m<info> app: rfalWakeUpModeStart()=0! isr = 0,scan_times=0[0m

...after running awhile

[0m<info> app: NFC Wake up! isr = 1[0m..........................................................card near
[0m<info> app: rfalWakeUpModeStop()=0! isr = 1,scan_times=0[0m
[0m<info> app: rfalInitialize()=0! isr = 6,scan_times=2[0m
[0m<info> app: iso15693Initialize()=0! isr = 7,scan_times=2[0m
[0m<info> app: iso15693Inventory()=0! isr = 40,scan_times=2[0m
[0m<info> app: iso15693WriteSingleBlock()=4[0m............................................detect ISO15693 card
[0m<info> app: iso15693WriteSingleBlock()=4[0m
[0m<info> app: iso15693WriteSingleBlock()=4[0m
[0m<info> app: iso15693ReadMultipleBlocks()=0[0m
[0m<info> app: iso15693Deinitialize()=0! isr = 55,scan_times=2[0m
[0m<info> app: rfalDeinitialize()=0! isr = 55,scan_times=2[0m
[0m<info> app: rfalInitialize()=0! isr = 0,scan_times=1[0m
[0m<info> app: INT_ERROR: false[0m..............................................................interrupt no trigger
[0m<info> app: iso15693Initialize()=0! isr = 1,scan_times=1[0m
[0m<info> app: iso15693Inventory()=16! isr = 33,scan_times=1[0m
[0m<info> app: iso15693Deinitialize()=0! isr = 33,scan_times=1[0m
[0m<info> app: rfalDeinitialize()=0! isr = 33,scan_times=1[0m
[0m<info> app: rfalInitialize()=0! isr = 0,scan_times=0[0m
[0m<info> app: INT_ERROR: false[0m..............................................................interrupt no trigger
[0m<info> app: iso15693Initialize()=0! isr = 0,scan_times=0[0m
[0m<info> app: rfalInitialize()=0! isr = 1,scan_times=0[0m
[0m<info> app: INT_ERROR: false[0m..............................................................interrupt no trigger
[0m<info> app: iso15693Inventory()=16! isr = 1,scan_times=0[0m
[0m<info> app: iso15693Deinitialize()=0! isr = 1,scan_times=0[0m
[0m<info> app: rfalDeinitialize()=0! isr = 1,scan_times=0[0m
[0m<info> app: rfalWakeUpModeStart()=0! isr = 0,scan_times=0[0m

[0m<info> app: NFC Wake up! isr = 1[0m..........................................................card near
[0m<info> app: rfalWakeUpModeStop()=0! isr = 1,scan_times=0[0m
[0m<info> app: rfalInitialize()=0! isr = 1,scan_times=2[0m
[0m<info> app: INT_ERROR: false[0m..............................................................interrupt no trigger
[0m<info> app: iso15693Initialize()=0! isr = 1,scan_times=2[0m
[0m<info> app: rfalInitialize()=0! isr = 2,scan_times=2[0m
[0m<info> app: INT_ERROR: false[0m..............................................................interrupt no trigger
[0m<info> app: rfalInitialize()=0! isr = 2,scan_times=2[0m
[0m<info> app: INT_ERROR: false[0m..............................................................interrupt no trigger
[0m<info> app: iso15693Inventory()=16! isr = 2,scan_times=2[0m
[0m<info> app: iso15693Deinitialize()=0! isr = 2,scan_times=2[0m
[0m<info> app: rfalDeinitialize()=0! isr = 2,scan_times=2[0m
[0m<info> app: rfalInitialize()=0! isr = 0,scan_times=1[0m
[0m<info> app: INT_ERROR: false[0m..............................................................interrupt no trigger
[0m<info> app: iso15693Initialize()=0! isr = 0,scan_times=1[0m
[0m<info> app: rfalInitialize()=0! isr = 1,scan_times=1[0m
[0m<info> app: INT_ERROR: false[0m..............................................................interrupt no trigger
[0m<info> app: iso15693Inventory()=16! isr = 1,scan_times=1[0m
[0m<info> app: iso15693Deinitialize()=0! isr = 1,scan_times=1[0m
[0m<info> app: rfalDeinitialize()=0! isr = 1,scan_times=1[0m
[0m<info> app: rfalInitialize()=0! isr = 0,scan_times=0[0m
[0m<info> app: INT_ERROR: false[0m..............................................................interrupt no trigger
[0m<info> app: iso15693Initialize()=0! isr = 0,scan_times=0[0m
[0m<info> app: rfalInitialize()=0! isr = 1,scan_times=0[0m
[0m<info> app: INT_ERROR: false[0m..............................................................interrupt no trigger
[0m<info> app: rfalInitialize()=0! isr = 1,scan_times=0[0m
[0m<info> app: INT_ERROR: false[0m..............................................................interrupt no trigger
[0m<info> app: iso15693Inventory()=16! isr = 1,scan_times=0[0m
[0m<info> app: iso15693Deinitialize()=0! isr = 1,scan_times=0[0m
[0m<info> app: rfalDeinitialize()=0! isr = 1,scan_times=0[0m
[0m<info> app: rfalWakeUpModeStart()=0! isr = 0,scan_times=0

[Jørgen Holmefjord]

Hi,

What happens inside rfalInitialize()? What is the isr_times used for? Are you staying inside some interrupt context that is blocking the GPIOTE interrupt from happening? What is the configured interrupt priority for the GPIOTE driver?

Can you provide a minimal project and instructions that we can use to reproduce this issue?

Best regards,
Jørgen

[jyulin84]

Hi

I found the problem, it is because of timer setting error for nfc timer expired.

thanks