Hi,
I would like to know what is done to deal with external interruption coming from external pins on AT SAM R21 ? Is there a file to create to configure priorities between interruptions ?
Cheers,
Maxence
Hi Maxence,
the current design does not provide functionality for defining priorities. Actually all of our Cortex-Mx based implementations do not make use of different Interrupt priorities. Our design rationale in this context is simple: we expect all interrupts to be (very) short, something in the order of 10th of instructions. A typical interrupt would just call a msg_send_int(). Priorities are then resolved by the scheduler, as if more then one message is send (by two interrupts triggering at almost the same time), the receiving task with the higher priority will be scheduled.
Does this answer your question?
Cheers, Hauke
It answers my question ! Thank you Hauke !
Cheers,
Maxence