while trying to get my LoRa device working (Autonomo), I am looking at some of Gabriels code to try to get my device to sleep and wakeup with a clock interrupt.
In some of Gabriels code, he uses the __WFI(); function, wich I assume is declared somehwere, however, I am unable to find the declaration of that function anywhere in the arduino15 directory.
Can someone please point me in the right direction?
Have a look in the following folder (in Windows, Linux or OSX will be similar):
There you will find the source code for the definitions of the low level functions and direct register access.
The specific instruction __WFI is defined in: