AVR-Chat

yes,i have  a 4Mhz  ext crystal.plz send me a fusebit configuration for 2usart application.

--- On Fri, 7/17/09, Tim Mitchell <tim@sabretechnology.co.uk> wrote:

From: Tim Mitchell <tim@sabretechnology.co.uk>
Subject: RE: [AVR-Chat] atmega64l programming
To: AVR-Chat@yahoogroups.com
Date: Friday, July 17, 2009, 1:46 PM






 




    
                  ----Original Message----

From: AVR-Chat@yahoogroup s.com

[mailto:AVR-Chat@yahoogroup s.com] On Behalf Of iijfet Sent:

16 July 2009 18:53 To: AVR-Chat@yahoogroup s.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




 

      

    
    
	
	 
	
	








	


	
	


      

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