AVR-Chat

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

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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