16F767 Exteranl Interrupt with DT_INTS

[mister_e]

Nah... you can use whatever spare I/O you have, and poll them with a Timer Interrupt, let's say 10 times/seconds. Your main loop just check if you have a new keypress.

1 Timer interrupt will do everything,
1. scan the Key
2. say if there's a new key available,
3. and... why not using it also for the debouncing as well?

Think about it... 10 times a second is usually just fine.

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Yes ADCON1=15 will do.