AVR-Chat

On 4/11/07, Richard Cooke <rcooke@digitalwavelength.com> wrote:
> HI Folks,
>
> In Atmel's "AVR042: AVR Hardware Design Considerations" they recommend
> putting resistors on the SPI lines to allow using the ISP feature
> along with the application's use of the SPI port.
>
> What they don't show is the value of the resistors.  Does anybody have
> any recommendations for this?

I've used 4.7k,  basically you have to use large enough that the
programmer "wins" when it's connected.