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Message

Re: Using bootloading, only works once

2005-06-24 by Ray

--- In AVR-Chat@yahoogroups.com, John Samperi <samperi@a...> wrote:
> At 05:01 AM 25/06/2005, you wrote:
> >I'm configuring something incorrectly, would there be anyone out 
there
> >in AVR land that has experienced the same issues and can provide 
some
> >insight?
> 
> Just a silly comment I guess. Have you checked that you are not
> overwriting part of the bootloader by any chance especially in
> the smaller device with your code?

nope not silly - however I have a clearer defined problem now.
On a chip with ONLY boot program, the first power cycle will 
correctly load a program, and execute it.  Any later power cycling 
will only execute the App. Quickly GROUNDING reset, will allow the 
jump to boot sector programming.
there are 2 additional pieces of info that may be of value:
1 Brown Out enabled at 4v
2 CKOPT enabled, 1 crystal, 2 processors;

As mentioned before, Boot vector fuse is enabled and boot size is 
correct.


Ray



> 
> Regards
> 
> John Samperi
> 
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