AnsweredAssumed Answered

MQX interrupt demistify

Question asked by Mehmet Ekici on Nov 20, 2012
Latest reply on Jan 5, 2017 by CSMG Sarma


I have been experimenting with MQX for a while. I had a difficulty understanding interrupt mechanism in detail. I searched the forum too. I see many people had similar issues. Would freescale please make a good description and several demo project to explain it in detail?


If we use MQX's native interrupt mechanism it seems a bit easier but there are issues with it as well. lwgpio for instance, only a single function can be registered for many pins on a single port. This needs to be explained too.


if we are going to use interrupts out of MQX mechanism. It is becoming totally blurry.


I also find task priorities and interrupt priorities mixture confusing.


I hope one can explain the issue in detail.