Hi Kathy,
Is it possible you had a bad solder joint on that board that made the
AVR appear dead?
Regards,
Les.
On 17 Apr 2006 at 17:42, Kathy Quinlan wrote:
> Russell Shaw wrote:
> > Kathy Quinlan wrote:
> >> Hi all,
> >>
> >> Well I am pissed, I had a batch of boards I built, one did not work,
> >> would not go into program mode :(
> >>
> >> I tried everything, and in desperation replaced the AVR chip, low and
> >> behold it worked :(
> >>
> >> So I was shipped a dead Mega128 :( wonder how many others are on the tray :(
> >>
> >> (Yes I use all antistatic precautions, wrist strap, hot air Iron, never
> >> had a dead AVR on delivery before, and this is the first batch of -AU
> >> parts (lead free))
> >
> > I had a "dead" avr once, but figured out the oscillator amplifier had
> > extra low gain and the crystal wouldn't work. Applying an external
> > clock made it work.
>
> This is a Mega 128 in factory default internal Osc (I assume it is
> internal osc).
>
> All the others worked well, and my default fuse settings (which I set
> before programming (un check CKOPT, move from M103 compat etc)
>
>
>
> --
> Regards,
>
> Kat.
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> K.A.Q. Electronics Website: www.kaqelectronics.dyndns.org
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>
>
>
>
>
>
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Les Grant. VK2KYJ. Phone: 02 9896 7150 Fax: 02 9896 7153
Grantronics Pty Ltd Int'l: +612 9896 7150, +612 9896 7153
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PO Box 275, Wentworthville. NSW. 2145. Australia.
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