Delay After Interrupt

edgellmh

The following code and circuit work as expected except that there is a 67 second delay before the interrupt returns to main.

Another issue is that the INTR_RISE qualifier does not get highlighted in blue suggesting that it is not seen by the compiler.

Bean

I would forget about the 10M resistor (it's way to high) and just use the PULLUP on the pin.
Don't have WKPND_B as the last instruction before the RETURNINT (add a NOP if need be).

Bean.

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"It is our choices, Harry, that show what we truly are, far more than our abilities."·Dumbledore from Harry Potter

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edgellmh

Taking the 10 M resister out and running the 5V line directly to pin RB.3 prevents detection of the 12V pulse.

marshall

Velocit

You're supposed to remove the +5V source and 10 MOhm resistor altogether and then enable the internal pull-up resistor on pin RB.3.

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-Paul

edgellmh

The 67 second delay is because the INTERRUPT command is commented out!
A friend trouble shot this for me.

marshall