AVR-Chat

At 10:28 AM 20/03/2008, you wrote:
>but won't JTAG make those pins on the micro useless for
>anything but JTAG and ICE use?

Pretty much so during debug. Once the debug is finished (is it ever?)
you can use them for things like LEDs or DIL switches as you may be
able to fake these during debug.

For instance a run or fault LED(s) could use one of those pins in the final
product. A module address selection DIL switch could also use those pin as
you could fix the module address for debugging.

If I can help it a don't use them for anything else.

DW is easier as it only uses the reset pin.

The new PDI (programming and debugging interface ??) will use only
the reset pin and a dedicated test pin in some of the newest devices.



Regards

John Samperi

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