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[avr-gcc-list] OT: A Question On Programming the Clock Source On the AT
[avr-gcc-list] OT: A Question On Programming the Clock Source On the ATmega8515-16AC.
Mon, 30 Aug 2004 14:50:04 -0400
I am trying to program the clock source on the ATmega8515-16AC. I have
a 16 MHz crystal connected to the microcontroller. I believe that I want to
have the following fuses programmed as follows:
CKSEL3..0 = 1111
SUT1..0 = 11
CKOPT = 0
Note: Where 1 = unprogrammed.
Where 0 = programmed.
Are these settings correct? Is there anything else that I need to do?
I have had no success in getting the microcontroller to run. I keep having
to use an external clock source in order to re-program it back to the
internal RC oscillator. I have looked at the ATmega8515's data sheet and on
page 35, table 7 which list the different crystal operating modes and it
does not have any settings for speeds greater than 8 MHz. Why? What am I
Any information that you can give me will greatly appreciated.
Thank you for your time and have a nice day.
John Branthoover :
Electrical Design Engineer :
Acutronic USA, Inc. :Phone (412) 968-1051
640 Alpha Drive :Fax (412) 963-0816
Pittsburgh PA 15238 :Email address@hidden
USA :WEB http://www.acutronic.com
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