npm1300 interrupts

[dave_s]

Can the npm1300 be set up so multiple interrupts trigger the same line, and then the host can determine what the cause is? 

Or does each interrupt need a 1:1 correspondence with the gpio line and it's limited to 5?

For instance, can I have an interrupt that would trip if the battery is charging OR the voltage is low OR there is a charging error  all from one GPIO line?  and then a second interrupt to tell me when the watchdog is about to trip?

[Andy Sinclair]

Hi.

All events share a single interrupt, the host needs to check the event registers to see the cause of the interrupt.
Please see this sample for an example:
sdk-nrf/samples/pmic/native/npm1300_one_button/src/main.c at main · nrfconnect/sdk-nrf (github.com)

It's not possible to route particular events to a different pin.

Andy

[dave_s]

Thanks... Can you clarify if I can select which pin the events are routed to? 

Is the watchdog timer about to expire interrupt in the same event group?

[Andy Sinclair]

Yes, any GPIO mode can be used as an interrupt output (set GPIOMODE to GPOIRQ).

Watchdog warning generates an event (EVENTWATCHDOGWARN) which will assert this pin if enabled.