question about PPI

[Lei Feiyang]

hello, everyone. i am a new, i can't understand the meaning of "One event can trigger multiple tasks by using multiple channels and one task can be triggered by multiple events in the same way." in the document. can anybody help me ? (sorry,my english is poor.)

[Stian Røed Hafskjold]

It means one event can trigger two or more tasks. And two or more events can trigger the same task. The way you do this is by using two or more channels.

This will assign your "Event 1" to PPI channel 0 and 1 and trigger two different tasks:

NRF_PPI->CH[0].EEP = "Event 1"
NRF_PPI->CH[1].EEP = "Event 1"

NRF_PPI->CH[0].TEP = "Task 1"
NRF_PPI->CH[1].TEP = "Task 2"

This will assign your "Event 1" and "Event 2" to PPI channel 0 and 1, and trigger the same task:

NRF_PPI->CH[0].EEP = "Event 1"
NRF_PPI->CH[1].EEP = "Event 2"

NRF_PPI->CH[0].TEP = "Task 1"
NRF_PPI->CH[1].TEP = "Task 1"

[Lei Feiyang]

thank you very much,You gave me a lot of help!

[Stian Røed Hafskjold]

You are welcome!