NRF24LE1

Question

I want to know the EXT interrupt (GPINT1 & GPINT0) can use at the same time. When I use the GPINT1 & GPINT0 at the same time,only one is OK the other is faile.

Håkon Alseth · Accepted Answer

Hi, 
 Unfortunately, the GPINTx is not functional when enabling more than one. 
 If you enable two or more, there is a "logic and" to trigger the interrupt, meaning that all sources must be active at the same time in order to trigger the interrupt.
This is a feature with this specific peripheral.
Also mentioned in chapter 9.3 of the spec:
[i]Interrupt from pin GP INT0, GP INT1 or GP INT2 as selected
by bits 3,4 or 5 in SFR INTEXP. Only one of the bits may be set
at a time.[/i] 
 A workaround can be to poll the lines using the RTC interrupt. 
 Best regards
Håkon