AVR-Chat

Sorry - I should have said crystal oscillator, and I check the CKOPT box.
The programmer (STK500) fails to read fuses etc though for these MCU's and
will not program them.

On Tue, Jun 1, 2010 at 8:46 AM, Dean Claxton <deanclaxton@gmail.com> wrote:

> Hi David,
>
> External oscialltor, and I normally enable CKOPT during programming but the
> ones that fail do not get that far - fail to read fuses or program. If I
> replace the MCU then all good, so I assume the actual MCU is the issue.
>
>   On Mon, May 31, 2010 at 12:59 PM, David VanHorn <microbrix@gmail.com>wrote:
>
>> On Sun, May 30, 2010 at 7:32 PM, Dean Claxton <deanclaxton@gmail.com>
>> wrote:
>> > Hi everyone,
>> >
>> > I seem to have a bad batch of mega 128's in that for the current project
>> I
>> > am finding that 20 to 30% of the chips are not programmable, or some
>> appear
>> > to have faulty A/D ports.
>>
>> Are you running crystal oscillator with the CKOPT fuse in the default
>> state?
>>
>>
>> ------------------------------------
>>
>> Yahoo! Groups Links
>>
>>
>>
>>
>
>
> --
> Kind Regards
> Dean Claxton
>



-- 
Kind Regards
Dean Claxton


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