Hi Ridho,
Tie PEN to your supply (high) no need for a series resistor that’s just a waist of money…
The company I worked for had around 150.000 pieces of a product running all around the globe at the moment in all sorts of environments and it hasn’t failed so far with the PEN being tied high directly and using only SPI for programming.
PEN stand for Parallel Programming Enable if you’re not going to use this FORGET ABOUT IT! Tie it high and don’t listen to what the others say…
I know for a fact that it works when its high… our production numbers speaks its own language.
Regards
Lasse Madsen
From: Ridho
Alpha [mailto:pendekar_ridho@yahoo.com]
Sent: 13. december 2004 00:44
To: AVR-Chat@yahoogroups.com
Subject: Re: [AVR-Chat] Re: /PEN
pin on ATMEGA128 (2)
so....i am now using SPI programming using In-System Programming and i use external reset.......so, i have to tie this /PEN pin to the ground????is it true????
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