AVR-Chat

Dave VanHorn wrote:

> 
> Ok, back to the original subject..
> 
> I've got my board's fuses set, so I'm in pretty good shape, but only 
> because I thought to use the old studio 3.56 to run the AVRISP.
> 
> Both AVRISP and Jtag refuse to go into fuse setting mode under studio 4.
> Avrisp is acting pretty normal now, running, breakpointing etc.
> 
> I still have USART1 interrupting me on TXD, when that int isn't enabled!
> CLI stops it, but of course I had a few other things going on, and that's 
> got them all hosed now too.
> I wrote 00h to all the USART1 config regs, and yet the ints keep coming.
> 
> Appears to not be a jtag problem, I set a pin trap for it and it still 
> happens when the chip is running on it's own.
> WTF?
> 
> Re-checked the int vector table against a M128 data sheet to be sure I 
> hadn't scrambled the ISR vector points.
> No errors.

Dave if you email the project off list I can run it up on a M128 for you 
, sounds like it may be a hosed chip :(

That or a problem with Vcc / Reset / BOD

But I think you would have checked before posting

Regards,

Kat.


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