Synth-DIY Yahoo! Groups Archives

Pull up resistor on interrupt lines

2006-01-23 by RW Concepts - enquiries

It's possible to enable pull-up resistors when the pins are set to I/O inputs. Is it still possible when the special function for those pins is then enabled? I'm particularly interested in whether it's possible to have an pull-up on an external interrupt pin.

TIA.

Rog.

Re: [AVR-Chat] Pull up resistor on interrupt lines

2006-01-24 by James Washer

From reading the Mega8 docs, it seems the PU works just fine in interrupt mode.

On Mon, 23 Jan 2006 15:51:28 -0000
"RW Concepts - enquiries" <enquiries@rwconcepts.co.uk> wrote:

Show quoted textHide quoted text

> It's possible to enable pull-up resistors when the pins are set to I/O inputs. Is it still possible when the special function for those pins is then enabled? I'm particularly interested in whether it's possible to have an pull-up on an external interrupt pin.
> 
> TIA.
> 
> Rog.