AVR-Chat

the Atmel documentation calls for higher value pull up or pull down 
resistors, usually 20K. however 10K work fine.  But 1K is a bit low.

I'm still not understanding what noise you are having. If it is digital 
in nature is it noise?, or Do you have your external interrupt being 
triggered because the port is set as an output? (part of the external 
interrupt nature)

rep


On 10/15/2012 12:59 AM, Elham B wrote:
>
> 1k,,yes it's digital
>
> ________________________________
> From: farshid alipour <farshid32001@yahoo.com 
> <mailto:farshid32001%40yahoo.com>>
> To: AVR-Chat@yahoogroups.com <mailto:AVR-Chat%40yahoogroups.com>
> Sent: Monday, October 15, 2012 12:21 AM
> Subject: Re: [AVR-Chat] noise problem
>
>
>
> how much is it ?if the resistor is too big noise can effect on it .are 
> you sure the out put of the module is digital ?
>
> --- On Sun, 10/14/12, Elham B <elhamb88@ymail.com 
> <mailto:elhamb88%40ymail.com>> wrote:
>
> From: Elham B <elhamb88@ymail.com <mailto:elhamb88%40ymail.com>>
> Subject: Re: [AVR-Chat] noise problem
> To: "AVR-Chat@yahoogroups.com <mailto:AVR-Chat%40yahoogroups.com>" 
> <AVR-Chat@yahoogroups.com <mailto:AVR-Chat%40yahoogroups.com>>
> Date: Sunday, October 14, 2012, 11:38 PM
>
>
>
> i use pull-down resistor
>
> ________________________________
>
> From: farshid alipour <farshid32001@yahoo.com 
> <mailto:farshid32001%40yahoo.com>>
>
> To: AVR-Chat@yahoogroups.com <mailto:AVR-Chat%40yahoogroups.com>
>
> Sent: Sunday, October 14, 2012 11:26 PM
>
> Subject: Re: [AVR-Chat] noise problem
>
>
>
> have you used pull-up or pull-down resistor on the interrupt pin ?
>
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>
> [Non-text portions of this message have been removed]
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> [Non-text portions of this message have been removed]
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>