I have read through all the posts on timers, but I am still not sure how to get MQX to call my interrupt handler on the edge capture of the timer port pin. Do I have to retrieve the interrupt vector from the kernel and somehow substitute my vector? This is what I have gleaned so far. There seems to be a specific sequence to this but I am not sure where this is documented. Can anyone point me to a simple example or book on how to have my ISR called. Under PE it was simple or under no RTOS it is simple but I don't understand the layers between MQX and the final destination vector. Thanks for any help.