16F690... How to wake from sleep?

[HenrikOlsson]

Hi,
That's weird, we just had a similar discussion here
PBP's SLEEP statement accepts and expects a time, in seconds. It then uses the WDT to keep track of the time and continue your PBP program after the number of seconds you specify, roughly.

Main:
'Do this
'Do that
SLEEP 60
Goto Main

During those 60 seconds sleep the PIC will wake up briefly, each time the WDT times out, look at the watch and decide if it's time to go to work or if it can go back to sleep. Once it has woken up enough times to "accumulate" 60 seconds it will continue.

EDIT: Oh, both PBP's SLEEP and @ SLEEP puts the PIC to sleep and the WDT (or an interrupt) wakes the PIC up in both cases. The difference is that the PBP statement has that built in accumulator, basically keeping track of the number of wake-ups, which allows you specify the amount of time you wish to sleep. With @ SLEEP it's one WDT period - period.
/Henrik.