Does variable value change being transferred to code running in interrupt loop?

[Dave]

CuriousOne, Here ia a small template for a program I just wrote that you can use as a starting point. It uses DT interrupts. I have them set for 1 millisecond and using 2 complete ports for the leds. Those ports are B & D. These interrupts are running in the background updating the led status from the 16 byte array. You can change the values in the array at any time in the main program. Enjoy. Let me know if it works for you.