[avr-chat] Re: AVR-chat Digest, Vol 36, Issue 10

[Dean Hall]

Ormund, thank you for the info.  For everyone's information here's  
how I fixed the situation.

I used the software generated clock from the STK500's XT1 pin of the  
PORTE/AUX header and manually jumped it to the ATmega's PB6/XTAL1  
pin.  Even with a 32.768 KHz crystal soldered to the XTAL1 net in my  
target circuit, I was able to establish comms with avrdude.  I had to  
slow the bit clock and skip device verification like so::

	$ avrdude -p atmega8 -P /dev/cu.KeySerial1 -c stk500v2 -V -B 100.0 - 
F -t
        avrdude> write lfuse 0 0xE4
        avrdude> quit

And all was well again.

!!Dean


On Jan 16, 2008, at 23:18 , address@hidden wrote:

> The ISP feature needs the oscillator running, avrdude cant do any  
> thing
> without that.  What you need is an external frequency source connected
> to PB6(XTAL1), I once used an audo signal generator running at  
> 10KHz and
> "-B 1000".