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Re: [AVR-Chat] Why is it so!

2005-03-20 by John Samperi

At 02:56 PM 20/03/2005, you wrote:
>Where do you get the firmware to turn a mega8535 into a jtagice?

It is not a 8535 but a M16. The board DXIO-6 uses a 8535
which is pin compatible with the M16 so it was quite easy to build
the circuit for the ice as 90% of the stuff is already there i.e.
Power supply, RS232, oscillator etc. The programming socket carries
power and 3 of the signals required fo the ice...so a little veroboard
some connectors a few components and it's all done.
For firmware just do a search for jtagice and you will come
up with lots of usefull info ;-) then Studio does the upgrade to
the lastest firmware.

>Could have something to do with the setting that allows timers
>to be stopped or run at full speed during jtag single-stepping.

Maybe...now it's flashing sporadically with the ice back on.
Lots of new stuff to learn and many questions to ask....

Regards

John Samperi

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