ICETube Clock Fuse Values
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ICETube Clock Fuse Values
by dreiber » Wed May 30, 2012 8:00 am
Can anyone tell me what he values for efuse, lfuse and hfuse are for the ice tube clock ATMEGA168?
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Re: ICETube Clock Fuse Values
by adafruit » Wed May 30, 2012 7:58 pm
All is in the makefile, please read it!
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Re: ICETube Clock Fuse Values
by wbp » Tue Jul 31, 2012 11:20 pm
I am confused. The makefile gives lfuse:w:0xE2, but when I plug that in to the AVR Fuse calculator, it says that's for an internal RC oscillator.
It seems like it should be lfuse:w:E5 and I found one post where someone used that and it worked.
Which is correct?
Thanks,
William
It seems like it should be lfuse:w:E5 and I found one post where someone used that and it worked.
Which is correct?
Thanks,
William
-
wbp - Posts: 149
- Joined: Mon Mar 07, 2011 12:18 pm
Re: ICETube Clock Fuse Values
by wbp » Tue Jul 31, 2012 11:39 pm
Never mind. I found this which explains it:
"In the Ice Tube, the microcontroller runs off its internal 8 MHz oscillator. The external clock crystal is used to provide interrupts 32768 times per second, which the firmware uses to keep time."
Is this documented in the source code or the design article? Nah, real programmers don't document, I forgot...
"In the Ice Tube, the microcontroller runs off its internal 8 MHz oscillator. The external clock crystal is used to provide interrupts 32768 times per second, which the firmware uses to keep time."
Is this documented in the source code or the design article? Nah, real programmers don't document, I forgot...
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