hi all
im looking for advice whilst using the RB0 int function on a pic (16f 887), if i set it for say trigger on the rising edge would i need to use say a 10K resistor to pull it low and vice versa ie falling edge and a 10K pull up resistor or can the bit just be connected without the resistors ?? cheers
bob
ADVICE USING RB0 INT FUNCTION
-
- Posts: 392
- Joined: Wed Jan 05, 2011 11:24 am
- Has thanked: 101 times
- Been thanked: 24 times
- Contact:
-
- Valued Contributor
- Posts: 2045
- Joined: Wed Aug 27, 2008 10:31 pm
- Location: Netherlands
- Has thanked: 553 times
- Been thanked: 1081 times
- Contact:
Re: ADVICE USING RB0 INT FUNCTION
That depends on what you use to drive the input. If you use a well defined, not open collector, output of another chip no pull-up/down is required. If you use a switch that connects to GND/Vcc a pull-up/down will be required.
“Integrity is doing the right thing, even when no one is watching.”
― C.S. Lewis
― C.S. Lewis
-
- Posts: 392
- Joined: Wed Jan 05, 2011 11:24 am
- Has thanked: 101 times
- Been thanked: 24 times
- Contact: