I have two interrupt sources. ( serial comms & a timer overflow). What I would like to do is have the timer interrupt set at a higher priority so that it can interrupt the serial interrupt ISR.
I have set the ICR timer bit hi and the SYSCR INTM0 bit hi but the comms is still holding off the timer.
I see a reference to I & UI bits. What are they?
Does anyone know how to do this.
TIA
Arthur Richards