AVR-Chat

----Original Message----
From: AVR-Chat@yahoogroups.com
[mailto:AVR-Chat@yahoogroups.com] On Behalf Of iijfet Sent:
16 July 2009 18:53 To: AVR-Chat@yahoogroups.com
Subject: [AVR-Chat] atmega64l programming

> hi,i'm so deprss.i want to have a double-usart by
> atmega64l. 
> 
> but i program it,exp for test i make PORTC=255,it
> program,but these 
> 
> pins of micro are not 1-logic,and these voltage are 0;
> 
> i don't know really the correct fusebit configuration at
> usart state.i 
> 
> know M103 must set to 0,but what about WTDON,CLK,.. .
> 
> every day i go to the center of city(Tehran) but when
> 3time i program 
> 
> these fusebits,micro isn't programed.

M103 should be set to 1 (Unprogrammed) - if set to 0 (Programmed) then
the chip is in Mega103 Compatibility Mode.

The settings for the other fusebits depend on how the board is connected
up - have you got an ext crystal?

-- 
Tim Mitchell