Please take another look at the REPEAT routine. Once entered there is no way out as you have it posted. I'm unclear as to how the routine is called since the posting is incomplete. As posted, the routine compliments P2.4, calls a DELAY, then jumps back to the compliment instruction. This will go on blinking the LED on the port pin at a 100 millisecond interval until the MCU is reset. Is this what you intended?


Hal