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RE: [AVR-Chat] (was I2C again)

RE: [AVR-Chat] (was I2C again)

2007-07-04 by Tim Mitchell

John Samperi wrote:
> At 07:48 PM 3/07/2007, you wrote:
>> compatibility mode which handles this pin swap, it does not swap the
>> pins for the high-voltage progamming mode -
> 
> That's interesting, it does not say anything about that in the
> migration note for the T25 (I can see the problem with the T45 and
> T85) Good to know from someone that has been bitten :-)  

No, they sort of fail to mention it, I found out the hard way.

> 
> Without knowing what I'm talking about here, I would simply have a
> T25 programmer
> with the 2 wires reversed :-) and the chip in compatibility mode.
> Of course it all depends on how and where the chips get
> programmed...... 
> 

The other pin is not a programming pin and does not come out to the
programming header, so you can't.

-- 
Tim Mitchell
tim@sabretechnology.co.uk http://www.sabretechnology.co.uk
Sabre Technology (Hull) Ltd, 3a Newlands Science Park, Hull HU6 7TQ
Registered in England and Wales no.3131504
t:01482 801003 f:01482 801078

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