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Re: [avr-gcc-list] programming header, pinout?

From: Joerg Wunsch
Subject: Re: [avr-gcc-list] programming header, pinout?
Date: Sat, 11 Dec 2004 22:56:30 +0100 (MET)

As Torsten Mohr <address@hidden> wrote:

>i design a PCB with an ATMega128 at the moment.  I want
>to in-system-program it, what is the preferred pinout
>for it?

There are unfortunately two of them.

Atmel proposed a 6-pin header in appnote 910.  It is still in
widespread use, but they later on also established a 10-pin header.
All the Atmel ISP tools come with both (when it comes to connecting
to other targets -- internally, often only the 6-pin header can be

The IMHO major drawback of the 6-pin header is that 6-pin connectors
are much harder to get than 10-pin ones.
J"org Wunsch                                           Unix support engineer
address@hidden        http://www.interface-systems.de/~j/

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